Always write tsbuildInfo when running tsc -b (#58626)

src/compiler/builder.ts

@@ -55,6 +55,7 @@ import {
     HostForComputeHash,
     isArray,
     isDeclarationFileName,
+    isIncrementalCompilation,
     isJsonSourceFile,
     isNumber,
     isString,
@@ -376,7 +377,7 @@ function createBuilderProgramState(
     }
     else {
         // We arent using old state, so atleast emit buildInfo with current information
-        state.buildInfoEmitPending = true;
+        state.buildInfoEmitPending = isIncrementalCompilation(compilerOptions);
     }
 
     // Update changed files and copy semantic diagnostics if we can
@@ -1184,7 +1185,7 @@ export function isIncrementalBuildInfo(info: BuildInfo): info is IncrementalBuil
 /**
  * Gets the program information to be emitted in buildInfo so that we can use it to create new program
  */
-function getBuildInfo(state: BuilderProgramStateWithDefinedProgram): IncrementalBuildInfo {
+function getBuildInfo(state: BuilderProgramStateWithDefinedProgram): BuildInfo {
     const currentDirectory = state.program.getCurrentDirectory();
     const buildInfoDirectory = getDirectoryPath(getNormalizedAbsolutePath(getTsBuildInfoEmitOutputFilePath(state.compilerOptions)!, currentDirectory));
     // Convert the file name to Path here if we set the fileName instead to optimize multiple d.ts file emits and having to compute Canonical path
@@ -1192,6 +1193,9 @@ function getBuildInfo(state: BuilderProgramStateWithDefinedProgram): Incremental
     const fileNames: string[] = [];
     const fileNameToFileId = new Map<string, IncrementalBuildInfoFileId>();
     const rootFileNames = new Set(state.program.getRootFileNames().map(f => toPath(f, currentDirectory, state.program.getCanonicalFileName)));
+
+    if (!isIncrementalCompilation(state.compilerOptions)) return { version };
+
     const root: IncrementalBuildInfoRoot[] = [];
     if (state.compilerOptions.outFile) {
         // Copy all fileInfo, version and impliedFormat
@@ -1204,7 +1208,7 @@ function getBuildInfo(state: BuilderProgramStateWithDefinedProgram): Incremental
                 { version: value.version, impliedFormat: value.impliedFormat, signature: undefined, affectsGlobalScope: undefined } :
                 value.version;
         });
-        return {
+        const buildInfo: IncrementalBundleEmitBuildInfo = {
             fileNames,
             fileInfos,
             root,
@@ -1221,7 +1225,8 @@ function getBuildInfo(state: BuilderProgramStateWithDefinedProgram): Incremental
                 false : // Pending emit is same as deteremined by compilerOptions
                 state.programEmitPending, // Actual value
             version,
-        } satisfies IncrementalBundleEmitBuildInfo;
+        };
+        return buildInfo;
     }
 
     let fileIdsList: (readonly IncrementalBuildInfoFileId[])[] | undefined;
@@ -1295,7 +1300,7 @@ function getBuildInfo(state: BuilderProgramStateWithDefinedProgram): Incremental
         }
     }
 
-    return {
+    const buildInfo: IncrementalMultiFileEmitBuildInfo = {
         fileNames,
         fileIdsList,
         fileInfos,
@@ -1310,7 +1315,8 @@ function getBuildInfo(state: BuilderProgramStateWithDefinedProgram): Incremental
         emitSignatures,
         latestChangedDtsFile,
         version,
-    } satisfies IncrementalMultiFileEmitBuildInfo;
+    };
+    return buildInfo;
 
     function relativeToBuildInfoEnsuringAbsolutePath(path: string) {
         return relativeToBuildInfo(getNormalizedAbsolutePath(path, currentDirectory));

src/compiler/diagnosticMessages.json

@@ -4617,6 +4617,10 @@
         "category": "Error",
         "code": 5110
     },
+    "Option 'tsBuildInfoFile' cannot be specified without specifying option 'incremental' or 'composite' or if not running 'tsc -b'.": {
+        "category": "Error",
+        "code": 5111
+    },
 
     "Generates a sourcemap for each corresponding '.d.ts' file.": {
         "category": "Message",

src/compiler/emitter.ts

@@ -479,7 +479,7 @@ export function forEachEmittedFile<T>(
 
 export function getTsBuildInfoEmitOutputFilePath(options: CompilerOptions) {
     const configFile = options.configFilePath;
-    if (!isIncrementalCompilation(options)) return undefined;
+    if (!canEmitTsBuildInfo(options)) return undefined;
     if (options.tsBuildInfoFile) return options.tsBuildInfoFile;
     const outPath = options.outFile;
     let buildInfoExtensionLess: string;
@@ -498,6 +498,11 @@ export function getTsBuildInfoEmitOutputFilePath(options: CompilerOptions) {
     return buildInfoExtensionLess + Extension.TsBuildInfo;
 }
 
+/** @internal */
+export function canEmitTsBuildInfo(options: CompilerOptions) {
+    return isIncrementalCompilation(options) || !!options.tscBuild;
+}
+
 /** @internal */
 export function getOutputPathsForBundle(options: CompilerOptions, forceDtsPaths: boolean): EmitFileNames {
     const outPath = options.outFile!;

src/compiler/program.ts

@@ -8,6 +8,7 @@ import {
     AsExpression,
     BuilderProgram,
     CancellationToken,
+    canEmitTsBuildInfo,
     canHaveDecorators,
     canHaveIllegalDecorators,
     chainDiagnosticMessages,
@@ -195,7 +196,6 @@ import {
     isImportEqualsDeclaration,
     isImportSpecifier,
     isImportTypeNode,
-    isIncrementalCompilation,
     isInJSFile,
     isJSDocImportTag,
     isLiteralImportTypeNode,
@@ -4324,8 +4324,8 @@ export function createProgram(rootNamesOrOptions: readonly string[] | CreateProg
 
         const outputFile = options.outFile;
         if (options.tsBuildInfoFile) {
-            if (!isIncrementalCompilation(options)) {
-                createDiagnosticForOptionName(Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1_or_option_2, "tsBuildInfoFile", "incremental", "composite");
+            if (!canEmitTsBuildInfo(options)) {
+                createDiagnosticForOptionName(Diagnostics.Option_tsBuildInfoFile_cannot_be_specified_without_specifying_option_incremental_or_composite_or_if_not_running_tsc_b, "tsBuildInfoFile");
             }
         }
         else if (options.incremental && !outputFile && !options.configFilePath) {

src/compiler/tsbuildPublic.ts

@@ -71,7 +71,6 @@ import {
     getWatchErrorSummaryDiagnosticMessage,
     hasProperty,
     identity,
-    IncrementalBuildInfo,
     IncrementalBundleEmitBuildInfo,
     IncrementalMultiFileEmitBuildInfo,
     isIgnoredFileFromWildCardWatching,
@@ -131,7 +130,6 @@ import {
 import * as performance from "./_namespaces/ts.performance.js";
 
 const minimumDate = new Date(-8640000000000000);
-const maximumDate = new Date(8640000000000000);
 
 export interface BuildOptions {
     dry?: boolean;
@@ -328,6 +326,7 @@ function getCompilerOptionsOfBuildOptions(buildOptions: BuildOptions): CompilerO
     commonOptionsWithBuild.forEach(option => {
         if (hasProperty(buildOptions, option.name)) result[option.name] = buildOptions[option.name];
     });
+    result.tscBuild = true;
     return result;
 }
 
@@ -1635,84 +1634,78 @@ function getUpToDateStatusWorker<T extends BuilderProgram>(state: SolutionBuilde
 
     // Check buildinfo first
     const { host } = state;
-    const buildInfoPath = getTsBuildInfoEmitOutputFilePath(project.options);
-    let oldestOutputFileName: string | undefined;
-    let oldestOutputFileTime = maximumDate;
-    let buildInfoTime: Date | undefined;
-    let incrementalBuildInfo: IncrementalBuildInfo | undefined;
-    let buildInfoVersionMap: ReturnType<typeof getBuildInfoFileVersionMap> | undefined;
-    if (buildInfoPath) {
-        const buildInfoCacheEntry = getBuildInfoCacheEntry(state, buildInfoPath, resolvedPath);
-        buildInfoTime = buildInfoCacheEntry?.modifiedTime || ts_getModifiedTime(host, buildInfoPath);
-        if (buildInfoTime === missingFileModifiedTime) {
-            if (!buildInfoCacheEntry) {
-                state.buildInfoCache.set(resolvedPath, {
-                    path: toPath(state, buildInfoPath),
-                    buildInfo: false,
-                    modifiedTime: buildInfoTime,
-                });
-            }
+    const buildInfoPath = getTsBuildInfoEmitOutputFilePath(project.options)!;
+    const isIncremental = isIncrementalCompilation(project.options);
+    let buildInfoCacheEntry = getBuildInfoCacheEntry(state, buildInfoPath, resolvedPath);
+    const buildInfoTime = buildInfoCacheEntry?.modifiedTime || ts_getModifiedTime(host, buildInfoPath);
+    if (buildInfoTime === missingFileModifiedTime) {
+        if (!buildInfoCacheEntry) {
+            state.buildInfoCache.set(resolvedPath, {
+                path: toPath(state, buildInfoPath),
+                buildInfo: false,
+                modifiedTime: buildInfoTime,
+            });
+        }
+        return {
+            type: UpToDateStatusType.OutputMissing,
+            missingOutputFileName: buildInfoPath,
+        };
+    }
+
+    const buildInfo = getBuildInfo(state, buildInfoPath, resolvedPath, buildInfoTime);
+    if (!buildInfo) {
+        // Error reading buildInfo
+        return {
+            type: UpToDateStatusType.ErrorReadingFile,
+            fileName: buildInfoPath,
+        };
+    }
+    const incrementalBuildInfo = isIncremental && isIncrementalBuildInfo(buildInfo) ? buildInfo : undefined;
+    if ((incrementalBuildInfo || !isIncremental) && buildInfo.version !== version) {
+        return {
+            type: UpToDateStatusType.TsVersionOutputOfDate,
+            version: buildInfo.version,
+        };
+    }
+
+    if (incrementalBuildInfo) {
+        // If there are pending changes that are not emitted, project is out of date
+        // When there are syntax errors, changeFileSet will have list of files changed (irrespective of noEmit)
+        // But in case of semantic error we need special treatment.
+        // Checking presence of affectedFilesPendingEmit list is fast and good way to tell if there were semantic errors and file emit was blocked
+        // But if noEmit is true, affectedFilesPendingEmit will have file list even if there are no semantic errors to preserve list of files to be emitted when running with noEmit false
+        // So with noEmit set to true, check on semantic diagnostics needs to be explicit as oppose to when it is false when only files pending emit is sufficient
+        if (
+            incrementalBuildInfo.changeFileSet?.length ||
+            (!project.options.noEmit ?
+                (incrementalBuildInfo as IncrementalMultiFileEmitBuildInfo).affectedFilesPendingEmit?.length ||
+                incrementalBuildInfo.emitDiagnosticsPerFile?.length ||
+                (incrementalBuildInfo as IncrementalBundleEmitBuildInfo).pendingEmit !== undefined :
+                incrementalBuildInfo.semanticDiagnosticsPerFile?.length)
+        ) {
             return {
-                type: UpToDateStatusType.OutputMissing,
-                missingOutputFileName: buildInfoPath,
+                type: UpToDateStatusType.OutOfDateBuildInfo,
+                buildInfoFile: buildInfoPath,
             };
         }
 
-        const buildInfo = getBuildInfo(state, buildInfoPath, resolvedPath, buildInfoTime);
-        if (!buildInfo) {
-            // Error reading buildInfo
+        if (!project.options.noEmit && getPendingEmitKind(project.options, incrementalBuildInfo.options || {})) {
             return {
-                type: UpToDateStatusType.ErrorReadingFile,
-                fileName: buildInfoPath,
+                type: UpToDateStatusType.OutOfDateOptions,
+                buildInfoFile: buildInfoPath,
             };
         }
-        if (isIncrementalBuildInfo(buildInfo) && buildInfo.version !== version) {
-            return {
-                type: UpToDateStatusType.TsVersionOutputOfDate,
-                version: buildInfo.version,
-            };
-        }
-
-        if (isIncrementalBuildInfo(buildInfo)) {
-            // If there are pending changes that are not emitted, project is out of date
-            // When there are syntax errors, changeFileSet will have list of files changed (irrespective of noEmit)
-            // But in case of semantic error we need special treatment.
-            // Checking presence of affectedFilesPendingEmit list is fast and good way to tell if there were semantic errors and file emit was blocked
-            // But if noEmit is true, affectedFilesPendingEmit will have file list even if there are no semantic errors to preserve list of files to be emitted when running with noEmit false
-            // So with noEmit set to true, check on semantic diagnostics needs to be explicit as oppose to when it is false when only files pending emit is sufficient
-            if (
-                buildInfo.changeFileSet?.length ||
-                (!project.options.noEmit ?
-                    (buildInfo as IncrementalMultiFileEmitBuildInfo).affectedFilesPendingEmit?.length ||
-                    buildInfo.emitDiagnosticsPerFile?.length ||
-                    (buildInfo as IncrementalBundleEmitBuildInfo).pendingEmit !== undefined :
-                    buildInfo.semanticDiagnosticsPerFile?.length)
-            ) {
-                return {
-                    type: UpToDateStatusType.OutOfDateBuildInfo,
-                    buildInfoFile: buildInfoPath,
-                };
-            }
-
-            if (!project.options.noEmit && getPendingEmitKind(project.options, buildInfo.options || {})) {
-                return {
-                    type: UpToDateStatusType.OutOfDateOptions,
-                    buildInfoFile: buildInfoPath,
-                };
-            }
-            incrementalBuildInfo = buildInfo;
-        }
-
-        oldestOutputFileTime = buildInfoTime;
-        oldestOutputFileName = buildInfoPath;
     }
 
     // Check input files
+    let oldestOutputFileTime = buildInfoTime;
+    let oldestOutputFileName = buildInfoPath;
     let newestInputFileName: string = undefined!;
     let newestInputFileTime = minimumDate;
     /** True if input file has changed timestamp but text is not changed, we can then do only timestamp updates on output to make it look up-to-date later */
     let pseudoInputUpToDate = false;
     const seenRoots = new Set<Path>();
+    let buildInfoVersionMap: ReturnType<typeof getBuildInfoFileVersionMap> | undefined;
     // Get timestamps of input files
     for (const inputFile of project.fileNames) {
         const inputTime = getModifiedTime(state, inputFile);
@@ -1725,12 +1718,12 @@ function getUpToDateStatusWorker<T extends BuilderProgram>(state: SolutionBuilde
 
         const inputPath = incrementalBuildInfo ? toPath(state, inputFile) : undefined;
         // If an buildInfo is older than the newest input, we can stop checking
-        if (buildInfoTime && buildInfoTime < inputTime) {
+        if (buildInfoTime < inputTime) {
             let version: string | undefined;
             let currentVersion: string | undefined;
             if (incrementalBuildInfo) {
                 // Read files and see if they are same, read is anyways cached
-                if (!buildInfoVersionMap) buildInfoVersionMap = getBuildInfoFileVersionMap(incrementalBuildInfo, buildInfoPath!, host);
+                if (!buildInfoVersionMap) buildInfoVersionMap = getBuildInfoFileVersionMap(incrementalBuildInfo, buildInfoPath, host);
                 const resolvedInputPath = buildInfoVersionMap.roots.get(inputPath!);
                 version = buildInfoVersionMap.fileInfos.get(resolvedInputPath ?? inputPath!);
                 const text = version ? state.readFileWithCache(resolvedInputPath ?? inputFile) : undefined;
@@ -1741,7 +1734,7 @@ function getUpToDateStatusWorker<T extends BuilderProgram>(state: SolutionBuilde
             if (!version || version !== currentVersion) {
                 return {
                     type: UpToDateStatusType.OutOfDateWithSelf,
-                    outOfDateOutputFileName: buildInfoPath!,
+                    outOfDateOutputFileName: buildInfoPath,
                     newerInputFileName: inputFile,
                 };
             }
@@ -1756,7 +1749,7 @@ function getUpToDateStatusWorker<T extends BuilderProgram>(state: SolutionBuilde
     }
 
     if (incrementalBuildInfo) {
-        if (!buildInfoVersionMap) buildInfoVersionMap = getBuildInfoFileVersionMap(incrementalBuildInfo, buildInfoPath!, host);
+        if (!buildInfoVersionMap) buildInfoVersionMap = getBuildInfoFileVersionMap(incrementalBuildInfo, buildInfoPath, host);
         const existingRoot = forEachEntry(
             buildInfoVersionMap.roots,
             // File was root file when project was built but its not any more
@@ -1765,7 +1758,7 @@ function getUpToDateStatusWorker<T extends BuilderProgram>(state: SolutionBuilde
         if (existingRoot) {
             return {
                 type: UpToDateStatusType.OutOfDateRoots,
-                buildInfoFile: buildInfoPath!,
+                buildInfoFile: buildInfoPath,
                 inputFile: existingRoot,
             };
         }
@@ -1773,11 +1766,12 @@ function getUpToDateStatusWorker<T extends BuilderProgram>(state: SolutionBuilde
 
     // Now see if all outputs are newer than the newest input
     // Dont check output timestamps if we have buildinfo telling us output is uptodate
-    if (!buildInfoPath) {
+    if (!isIncremental) {
         // Collect the expected outputs of this project
         const outputs = getAllProjectOutputs(project, !host.useCaseSensitiveFileNames());
         const outputTimeStampMap = getOutputTimeStampMap(state, resolvedPath);
         for (const output of outputs) {
+            if (output === buildInfoPath) continue;
             const path = toPath(state, output);
             // Output is missing; can stop checking
             let outputTime = outputTimeStampMap?.get(path);
@@ -1811,7 +1805,6 @@ function getUpToDateStatusWorker<T extends BuilderProgram>(state: SolutionBuilde
         }
     }
 
-    const buildInfoCacheEntry = state.buildInfoCache.get(resolvedPath);
     /** Inputs are up-to-date, just need either timestamp update to make it look up-to-date */
     let pseudoUpToDate = false;
     if (referenceStatuses) {
@@ -1823,10 +1816,10 @@ function getUpToDateStatusWorker<T extends BuilderProgram>(state: SolutionBuilde
             }
 
             // Check if tsbuildinfo path is shared, then we need to rebuild
-            if (buildInfoCacheEntry && hasSameBuildInfo(state, buildInfoCacheEntry, resolvedRefPath)) {
+            if (hasSameBuildInfo(state, buildInfoCacheEntry ??= state.buildInfoCache.get(resolvedPath)!, resolvedRefPath)) {
                 return {
                     type: UpToDateStatusType.OutOfDateWithUpstream,
-                    outOfDateOutputFileName: buildInfoPath!,
+                    outOfDateOutputFileName: buildInfoPath,
                     newerProjectName: ref.path,
                 };
             }
@@ -1850,18 +1843,18 @@ function getUpToDateStatusWorker<T extends BuilderProgram>(state: SolutionBuilde
     }
 
     // Check tsconfig time
-    const configStatus = checkConfigFileUpToDateStatus(state, project.options.configFilePath!, oldestOutputFileTime, oldestOutputFileName!);
+    const configStatus = checkConfigFileUpToDateStatus(state, project.options.configFilePath!, oldestOutputFileTime, oldestOutputFileName);
     if (configStatus) return configStatus;
 
     // Check extended config time
-    const extendedConfigStatus = forEach(project.options.configFile!.extendedSourceFiles || emptyArray, configFile => checkConfigFileUpToDateStatus(state, configFile, oldestOutputFileTime, oldestOutputFileName!));
+    const extendedConfigStatus = forEach(project.options.configFile!.extendedSourceFiles || emptyArray, configFile => checkConfigFileUpToDateStatus(state, configFile, oldestOutputFileTime, oldestOutputFileName));
     if (extendedConfigStatus) return extendedConfigStatus;
 
     // Check package file time
     const packageJsonLookups = state.lastCachedPackageJsonLookups.get(resolvedPath);
     const dependentPackageFileStatus = packageJsonLookups && forEachKey(
         packageJsonLookups,
-        path => checkConfigFileUpToDateStatus(state, path, oldestOutputFileTime, oldestOutputFileName!),
+        path => checkConfigFileUpToDateStatus(state, path, oldestOutputFileTime, oldestOutputFileName),
     );
     if (dependentPackageFileStatus) return dependentPackageFileStatus;
 
@@ -1874,7 +1867,7 @@ function getUpToDateStatusWorker<T extends BuilderProgram>(state: SolutionBuilde
             UpToDateStatusType.UpToDate,
         newestInputFileTime,
         newestInputFileName,
-        oldestOutputFileName: oldestOutputFileName!,
+        oldestOutputFileName,
     };
 }
 
@@ -1910,8 +1903,9 @@ function updateOutputTimestampsWorker<T extends BuilderProgram>(
 ) {
     if (proj.options.noEmit) return;
     let now: Date | undefined;
-    const buildInfoPath = getTsBuildInfoEmitOutputFilePath(proj.options);
-    if (buildInfoPath) {
+    const buildInfoPath = getTsBuildInfoEmitOutputFilePath(proj.options)!;
+    const isIncremental = isIncrementalCompilation(proj.options);
+    if (buildInfoPath && isIncremental) {
         // For incremental projects, only buildinfo needs to be upto date with timestamp check
         // as we dont check output files for up-to-date ness
         if (!skipOutputs?.has(toPath(state, buildInfoPath))) {
@@ -1937,8 +1931,9 @@ function updateOutputTimestampsWorker<T extends BuilderProgram>(
                 reportStatus(state, verboseMessage, proj.options.configFilePath!);
             }
             host.setModifiedTime(file, now ||= getCurrentTime(state.host));
+            if (file === buildInfoPath) getBuildInfoCacheEntry(state, buildInfoPath, projectPath)!.modifiedTime = now;
             // Store output timestamps in a map because non incremental build will need to check them to determine up-to-dateness
-            if (outputTimeStampMap) {
+            else if (outputTimeStampMap) {
                 outputTimeStampMap.set(path, now);
                 modifiedOutputs!.add(path);
             }

src/compiler/types.ts

@@ -7410,6 +7410,7 @@ export interface CompilerOptions {
     esModuleInterop?: boolean;
     /** @internal */ showConfig?: boolean;
     useDefineForClassFields?: boolean;
+    /** @internal */ tscBuild?: boolean;
 
     [option: string]: CompilerOptionsValue | TsConfigSourceFile | undefined;
 }

src/testRunner/unittests/helpers/tsc.ts

@@ -379,7 +379,7 @@ function verifyTscEditDiscrepancies({
             }
         }
     }
-    if (!headerAdded && discrepancyExplanation) addBaseline("*** Supplied discrepancy explanation but didnt file any difference");
+    if (!headerAdded && discrepancyExplanation) addBaseline("*** Supplied discrepancy explanation but didnt find any difference");
     return baselines;
 
     function verifyTextEqual(incrementalText: string | undefined, cleanText: string | undefined, message: string) {

src/testRunner/unittests/tsbuild/commandLine.ts

@@ -163,8 +163,7 @@ describe("unittests:: tsbuild:: commandLine::", () => {
                     {
                         caption: "local change",
                         edit: fs => appendText(fs, "/src/project1/src/b.ts", "const aaaa = 10;"),
-                        // --out without composite doesnt emit buildInfo without emitting program so it wouldnt have project2 tsbuildInfo so no mismatch
-                        discrepancyExplanation: options.incremental && options.outFile ? undefined : () => [
+                        discrepancyExplanation: () => [
                             `Clean build tsbuildinfo for project2 will have compilerOptions with composite and emitDeclarationOnly`,
                             `Incremental build will detect that it doesnt need to rebuild project2 so tsbuildinfo for it is from before which has option composite only`,
                         ],

src/testRunner/unittests/tsbuild/outFile.ts

@@ -249,6 +249,10 @@ describe("unittests:: tsbuild:: outFile::", () => {
                 caption: "Make non incremental build with change in file that doesnt affect dts",
                 edit: fs => appendText(fs, "/src/first/first_PART1.ts", "console.log(s);"),
                 commandLineArgs: ["--b", "/src/third", "--verbose"],
+                discrepancyExplanation: () => [
+                    "Clean build is non incremental so it will have non incremental tsbuildInfo for third project",
+                    "The incremental build does not build third so will only update timestamps for third tsbuildInfo and hence its from incremental build before",
+                ],
             },
             {
                 caption: "Make incremental build with change in file that doesnt affect dts",

src/testRunner/unittests/tsbuild/referencesWithRootDirInParent.ts

@@ -1,3 +1,4 @@
+import { noop } from "../../_namespaces/ts.js";
 import { dedent } from "../../_namespaces/Utils.js";
 import * as vfs from "../../_namespaces/vfs.js";
 import { jsonToReadableText } from "../helpers.js";
@@ -90,6 +91,57 @@ describe("unittests:: tsbuild:: with rootDir of project reference in parentDirec
         edits: noChangeOnlyRuns,
     });
 
+    verifyTsc({
+        scenario: "projectReferenceWithRootDirInParent",
+        subScenario: "reports error for same tsbuildinfo file without incremental",
+        fs: () => projFs,
+        commandLineArgs: ["--b", "/src/src/main", "--verbose"],
+        modifyFs: fs => {
+            fs.writeFileSync(
+                "/src/src/main/tsconfig.json",
+                jsonToReadableText({
+                    compilerOptions: { outDir: "../../dist/" },
+                    references: [{ path: "../other" }],
+                }),
+            );
+            fs.writeFileSync(
+                "/src/src/other/tsconfig.json",
+                jsonToReadableText({
+                    compilerOptions: { composite: true, outDir: "../../dist/" },
+                }),
+            );
+        },
+    });
+
+    verifyTsc({
+        scenario: "projectReferenceWithRootDirInParent",
+        subScenario: "reports error for same tsbuildinfo file without incremental with tsc",
+        fs: () => projFs,
+        commandLineArgs: ["--b", "/src/src/other", "--verbose"],
+        modifyFs: fs => {
+            fs.writeFileSync(
+                "/src/src/main/tsconfig.json",
+                jsonToReadableText({
+                    compilerOptions: { outDir: "../../dist/" },
+                    references: [{ path: "../other" }],
+                }),
+            );
+            fs.writeFileSync(
+                "/src/src/other/tsconfig.json",
+                jsonToReadableText({
+                    compilerOptions: { composite: true, outDir: "../../dist/" },
+                }),
+            );
+        },
+        edits: [
+            {
+                caption: "Running tsc on main",
+                edit: noop,
+                commandLineArgs: ["-p", "/src/src/main"],
+            },
+        ],
+    });
+
     verifyTsc({
         scenario: "projectReferenceWithRootDirInParent",
         subScenario: "reports no error when tsbuildinfo differ",

tests/baselines/reference/optionsTsBuildInfoFileWithoutIncrementalAndComposite.errors.txt

@@ -1,7 +1,7 @@
-error TS5069: Option 'tsBuildInfoFile' cannot be specified without specifying option 'incremental' or option 'composite'.
+error TS5111: Option 'tsBuildInfoFile' cannot be specified without specifying option 'incremental' or 'composite' or if not running 'tsc -b'.
 
 
-!!! error TS5069: Option 'tsBuildInfoFile' cannot be specified without specifying option 'incremental' or option 'composite'.
+!!! error TS5111: Option 'tsBuildInfoFile' cannot be specified without specifying option 'incremental' or 'composite' or if not running 'tsc -b'.
 ==== optionsTsBuildInfoFileWithoutIncrementalAndComposite.ts (0 errors) ====
     const x = "Hello World";
     

tests/baselines/reference/tsbuild/clean/tsx-with-dts-emit.js

@@ -36,7 +36,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/project/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project/tsconfig.json' is out of date because output file 'src/project/src/main.js' does not exist
+[HH:MM:SS AM] Project 'src/project/tsconfig.json' is out of date because output file 'src/project/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project/tsconfig.json'...
 
@@ -58,6 +58,15 @@ exports.x = void 0;
 exports.x = 10;
 
 
+//// [/src/project/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -85,5 +94,6 @@ Output::
 exitCode:: ExitStatus.Success
 
 
+//// [/src/project/tsconfig.tsbuildinfo] unlink
 //// [/src/project/src/main.d.ts] unlink
 //// [/src/project/src/main.js] unlink

tests/baselines/reference/tsbuild/commandLine/multiFile/different-options-with-incremental.js

@@ -54,6 +54,7 @@ Program root files: [
 ]
 Program options: {
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -231,6 +232,7 @@ Program root files: [
 Program options: {
   "incremental": true,
   "sourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -412,6 +414,7 @@ Program root files: [
 ]
 Program options: {
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -579,6 +582,7 @@ Program root files: [
 Program options: {
   "incremental": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -738,6 +742,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "declarationMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -927,6 +932,7 @@ Program root files: [
 ]
 Program options: {
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1077,6 +1083,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "declarationMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1244,6 +1251,7 @@ Program root files: [
 Program options: {
   "incremental": true,
   "inlineSourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1418,6 +1426,7 @@ Program root files: [
 Program options: {
   "incremental": true,
   "sourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1597,6 +1606,7 @@ Program root files: [
 ]
 Program options: {
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1769,6 +1779,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "declarationMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/multiFile/different-options.js

@@ -54,6 +54,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -255,6 +256,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "sourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -442,6 +444,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -650,6 +653,7 @@ Program options: {
   "composite": true,
   "declaration": true,
   "declarationMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -822,6 +826,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1015,6 +1020,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1184,6 +1190,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "inlineSourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1360,6 +1367,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "sourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/multiFile/emitDeclarationOnly-false-on-commandline-with-declaration-and-incremental.js

@@ -98,6 +98,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -131,6 +132,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -423,6 +425,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -485,6 +488,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -510,6 +514,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -673,6 +678,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -696,6 +702,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1005,6 +1012,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1061,6 +1069,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1123,6 +1132,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1148,6 +1158,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/multiFile/emitDeclarationOnly-false-on-commandline-with-declaration.js

@@ -65,11 +65,11 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output file 'src/project1/src/a.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output file 'src/project1/src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
-[HH:MM:SS AM] Project 'src/project2/src/tsconfig.json' is out of date because output file 'src/project2/src/e.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/project2/src/tsconfig.json' is out of date because output file 'src/project2/src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project2/src/tsconfig.json'...
 
@@ -95,6 +95,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -127,6 +128,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -159,6 +161,24 @@ export declare const c = 10;
 export declare const d = 10;
 
 
+//// [/src/project1/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
+//// [/src/project2/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -198,6 +218,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -214,6 +235,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: change
@@ -229,7 +252,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/a.d.ts' is older than input 'src/project1/src/a.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/tsconfig.tsbuildinfo' is older than input 'src/project1/src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -259,6 +282,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -291,6 +315,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -311,6 +336,10 @@ No shapes updated in the builder::
 //// [/src/project1/src/b.d.ts] file written with same contents
 //// [/src/project1/src/c.d.ts] file written with same contents
 //// [/src/project1/src/d.d.ts] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: emit js files
@@ -353,6 +382,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -385,6 +415,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -438,6 +469,10 @@ var b_1 = require("./b");
 exports.d = b_1.b;
 
 
+//// [/src/project1/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -477,6 +512,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -493,6 +529,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no change run with js emit
@@ -532,6 +570,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -548,6 +587,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: js emit with change
@@ -563,7 +604,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/a.js' is older than input 'src/project1/src/b.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/tsconfig.tsbuildinfo' is older than input 'src/project1/src/b.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -593,6 +634,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -625,6 +667,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -657,3 +700,7 @@ var blocal = 10;
 //// [/src/project1/src/c.js] file written with same contents
 //// [/src/project1/src/d.d.ts] file written with same contents
 //// [/src/project1/src/d.js] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/commandLine/multiFile/emitDeclarationOnly-false-on-commandline.js

@@ -83,6 +83,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -115,6 +116,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -440,6 +442,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -592,6 +595,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -614,6 +618,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -974,6 +979,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/multiFile/emitDeclarationOnly-on-commandline-with-declaration-and-incremental.js

@@ -96,6 +96,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -129,6 +130,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -421,6 +423,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -483,6 +486,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -508,6 +512,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -674,6 +679,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -701,6 +707,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -985,6 +992,7 @@ Program root files: [
 Program options: {
   "incremental": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1007,6 +1015,7 @@ Program root files: [
 Program options: {
   "incremental": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1315,6 +1324,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1376,6 +1386,7 @@ Program root files: [
 Program options: {
   "incremental": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1400,6 +1411,7 @@ Program root files: [
 Program options: {
   "incremental": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1574,6 +1586,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1599,6 +1612,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1765,6 +1779,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1792,6 +1807,7 @@ Program options: {
   "incremental": true,
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -2079,6 +2095,7 @@ Program root files: [
 Program options: {
   "incremental": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -2105,6 +2122,7 @@ Program root files: [
 Program options: {
   "incremental": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/multiFile/emitDeclarationOnly-on-commandline-with-declaration.js

@@ -63,11 +63,11 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output file 'src/project1/src/a.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output file 'src/project1/src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
-[HH:MM:SS AM] Project 'src/project2/src/tsconfig.json' is out of date because output file 'src/project2/src/e.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/project2/src/tsconfig.json' is out of date because output file 'src/project2/src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project2/src/tsconfig.json'...
 
@@ -93,6 +93,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -125,6 +126,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -157,6 +159,24 @@ export declare const c = 10;
 export declare const d = 10;
 
 
+//// [/src/project1/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
+//// [/src/project2/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -196,6 +216,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -212,6 +233,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: local change
@@ -227,7 +250,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/a.d.ts' is older than input 'src/project1/src/a.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/tsconfig.tsbuildinfo' is older than input 'src/project1/src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -257,6 +280,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -289,6 +313,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -309,6 +334,10 @@ No shapes updated in the builder::
 //// [/src/project1/src/b.d.ts] file written with same contents
 //// [/src/project1/src/c.d.ts] file written with same contents
 //// [/src/project1/src/d.d.ts] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: non local change
@@ -324,7 +353,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/a.d.ts' is older than input 'src/project1/src/a.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/tsconfig.tsbuildinfo' is older than input 'src/project1/src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -354,6 +383,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -386,6 +416,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -410,6 +441,10 @@ export declare const aaa = 10;
 //// [/src/project1/src/b.d.ts] file written with same contents
 //// [/src/project1/src/c.d.ts] file written with same contents
 //// [/src/project1/src/d.d.ts] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: emit js files
@@ -451,6 +486,7 @@ Program root files: [
 ]
 Program options: {
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -482,6 +518,7 @@ Program root files: [
 ]
 Program options: {
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -536,6 +573,10 @@ var b_1 = require("./b");
 exports.d = b_1.b;
 
 
+//// [/src/project1/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -575,6 +616,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -591,6 +633,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: js emit with change without emitDeclarationOnly
@@ -606,7 +650,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/a.js' is older than input 'src/project1/src/b.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/tsconfig.tsbuildinfo' is older than input 'src/project1/src/b.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -635,6 +679,7 @@ Program root files: [
 ]
 Program options: {
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -666,6 +711,7 @@ Program root files: [
 ]
 Program options: {
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -698,6 +744,10 @@ var alocal = 10;
 //// [/src/project1/src/c.js] file written with same contents
 //// [/src/project1/src/d.d.ts] file written with same contents
 //// [/src/project1/src/d.js] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: local change
@@ -713,7 +763,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/a.d.ts' is older than input 'src/project1/src/b.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/tsconfig.tsbuildinfo' is older than input 'src/project1/src/b.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -743,6 +793,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -775,6 +826,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -795,6 +847,10 @@ No shapes updated in the builder::
 //// [/src/project1/src/b.d.ts] file written with same contents
 //// [/src/project1/src/c.d.ts] file written with same contents
 //// [/src/project1/src/d.d.ts] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: non local change
@@ -810,7 +866,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/a.d.ts' is older than input 'src/project1/src/b.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/tsconfig.tsbuildinfo' is older than input 'src/project1/src/b.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -840,6 +896,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -872,6 +929,7 @@ Program root files: [
 Program options: {
   "declaration": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -896,6 +954,10 @@ export declare const aaaaa = 10;
 
 //// [/src/project1/src/c.d.ts] file written with same contents
 //// [/src/project1/src/d.d.ts] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: js emit with change without emitDeclarationOnly
@@ -911,7 +973,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/a.js' is older than input 'src/project1/src/b.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/src/tsconfig.tsbuildinfo' is older than input 'src/project1/src/b.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -940,6 +1002,7 @@ Program root files: [
 ]
 Program options: {
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -971,6 +1034,7 @@ Program root files: [
 ]
 Program options: {
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1011,3 +1075,7 @@ exports.a2 = 10;
 //// [/src/project1/src/c.js] file written with same contents
 //// [/src/project1/src/d.d.ts] file written with same contents
 //// [/src/project1/src/d.js] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project1/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project2/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/commandLine/multiFile/emitDeclarationOnly-on-commandline.js

@@ -81,6 +81,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -113,6 +114,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -438,6 +440,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -593,6 +596,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -619,6 +623,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -890,6 +895,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -911,6 +917,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1250,6 +1257,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1413,6 +1421,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1568,6 +1577,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1594,6 +1604,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1868,6 +1879,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1893,6 +1905,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/outFile/different-options-with-incremental.js

@@ -58,6 +58,7 @@ Program options: {
   "incremental": true,
   "outFile": "/src/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -210,6 +211,7 @@ Program options: {
   "outFile": "/src/outFile.js",
   "module": 2,
   "sourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -360,6 +362,7 @@ Program options: {
   "incremental": true,
   "outFile": "/src/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -507,6 +510,7 @@ Program options: {
   "outFile": "/src/outFile.js",
   "module": 2,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -642,6 +646,7 @@ Program options: {
   "module": 2,
   "declaration": true,
   "declarationMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -798,6 +803,7 @@ Program options: {
   "incremental": true,
   "outFile": "/src/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -951,6 +957,7 @@ Program options: {
   "module": 2,
   "declaration": true,
   "declarationMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1089,6 +1096,7 @@ Program options: {
   "outFile": "/src/outFile.js",
   "module": 2,
   "inlineSourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1237,6 +1245,7 @@ Program options: {
   "outFile": "/src/outFile.js",
   "module": 2,
   "sourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1387,6 +1396,7 @@ Program options: {
   "incremental": true,
   "outFile": "/src/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1535,6 +1545,7 @@ Program options: {
   "module": 2,
   "declaration": true,
   "declarationMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/outFile/different-options.js

@@ -58,6 +58,7 @@ Program options: {
   "composite": true,
   "outFile": "/src/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -228,6 +229,7 @@ Program options: {
   "outFile": "/src/outFile.js",
   "module": 2,
   "sourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -381,6 +383,7 @@ Program options: {
   "composite": true,
   "outFile": "/src/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -564,6 +567,7 @@ Program options: {
   "module": 2,
   "declaration": true,
   "declarationMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -704,6 +708,7 @@ Program options: {
   "composite": true,
   "outFile": "/src/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -874,6 +879,7 @@ Program options: {
   "composite": true,
   "outFile": "/src/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1045,6 +1051,7 @@ Program options: {
   "outFile": "/src/outFile.js",
   "module": 2,
   "inlineSourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not
@@ -1196,6 +1203,7 @@ Program options: {
   "outFile": "/src/outFile.js",
   "module": 2,
   "sourceMap": true,
+  "tscBuild": true,
   "configFilePath": "/src/project/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/outFile/emitDeclarationOnly-false-on-commandline-with-declaration-and-incremental.js

@@ -104,6 +104,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -134,6 +135,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -368,6 +370,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -431,6 +434,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -461,6 +465,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -600,6 +605,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -625,6 +631,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -874,6 +881,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -931,6 +939,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -994,6 +1003,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1024,6 +1034,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/outFile/emitDeclarationOnly-false-on-commandline-with-declaration.js

@@ -69,11 +69,11 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output file 'src/project1/outFile.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output file 'src/project1/outFile.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
-[HH:MM:SS AM] Project 'src/project2/src/tsconfig.json' is out of date because output file 'src/project2/outFile.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/project2/src/tsconfig.json' is out of date because output file 'src/project2/outFile.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project2/src/tsconfig.json'...
 
@@ -101,6 +101,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -130,6 +131,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -160,6 +162,24 @@ declare module "d" {
 }
 
 
+//// [/src/project1/outFile.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
+//// [/src/project2/outFile.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -201,6 +221,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -216,6 +237,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: change
@@ -231,7 +254,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.d.ts' is older than input 'src/project1/src/a.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.tsbuildinfo' is older than input 'src/project1/src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -263,6 +286,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -292,6 +316,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -308,6 +333,10 @@ No shapes updated in the builder::
 
 
 //// [/src/project1/outFile.d.ts] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: emit js files
@@ -352,6 +381,7 @@ Program options: {
   "emitDeclarationOnly": false,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -381,6 +411,7 @@ Program options: {
   "emitDeclarationOnly": false,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -427,6 +458,10 @@ define("d", ["require", "exports", "b"], function (require, exports, b_1) {
 });
 
 
+//// [/src/project1/outFile.tsbuildinfo] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -468,6 +503,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -483,6 +519,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no change run with js emit
@@ -524,6 +562,7 @@ Program options: {
   "emitDeclarationOnly": false,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -539,6 +578,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: js emit with change
@@ -554,7 +595,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.js' is older than input 'src/project1/src/b.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.tsbuildinfo' is older than input 'src/project1/src/b.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -586,6 +627,7 @@ Program options: {
   "emitDeclarationOnly": false,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -615,6 +657,7 @@ Program options: {
   "emitDeclarationOnly": false,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -662,3 +705,7 @@ define("d", ["require", "exports", "b"], function (require, exports, b_1) {
 });
 
 
+//// [/src/project1/outFile.tsbuildinfo] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/commandLine/outFile/emitDeclarationOnly-false-on-commandline.js

@@ -89,6 +89,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -118,6 +119,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -378,6 +380,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -511,6 +514,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -535,6 +539,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -833,6 +838,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": false,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/outFile/emitDeclarationOnly-on-commandline-with-declaration-and-incremental-discrepancies.js

@@ -198,7 +198,8 @@ IncrementalBuild:
   "version": "FakeTSVersion"
 }
 6:: local change
-*** Needs explanation
+Clean build tsbuildinfo for project2 will have compilerOptions with composite and emitDeclarationOnly
+Incremental build will detect that it doesnt need to rebuild project2 so tsbuildinfo for it is from before which has option composite only
 TsBuild info text without affectedFilesPendingEmit:: /src/project2/outfile.tsbuildinfo.readable.baseline.txt::
 CleanBuild:
 {

tests/baselines/reference/tsbuild/commandLine/outFile/emitDeclarationOnly-on-commandline-with-declaration-and-incremental.js

@@ -102,6 +102,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -132,6 +133,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -366,6 +368,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -429,6 +432,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -459,6 +463,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -601,6 +606,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -631,6 +637,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -868,6 +875,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -892,6 +900,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1140,6 +1149,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1202,6 +1212,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1231,6 +1242,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1404,6 +1416,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1434,6 +1447,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1576,6 +1590,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1606,6 +1621,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1847,6 +1863,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1876,6 +1893,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/commandLine/outFile/emitDeclarationOnly-on-commandline-with-declaration.js

@@ -67,11 +67,11 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output file 'src/project1/outFile.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output file 'src/project1/outFile.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
-[HH:MM:SS AM] Project 'src/project2/src/tsconfig.json' is out of date because output file 'src/project2/outFile.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/project2/src/tsconfig.json' is out of date because output file 'src/project2/outFile.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project2/src/tsconfig.json'...
 
@@ -99,6 +99,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -128,6 +129,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -158,6 +160,24 @@ declare module "d" {
 }
 
 
+//// [/src/project1/outFile.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
+//// [/src/project2/outFile.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -199,6 +219,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -214,6 +235,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: local change
@@ -229,7 +252,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.d.ts' is older than input 'src/project1/src/a.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.tsbuildinfo' is older than input 'src/project1/src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -261,6 +284,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -290,6 +314,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -306,6 +331,10 @@ No shapes updated in the builder::
 
 
 //// [/src/project1/outFile.d.ts] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: non local change
@@ -321,7 +350,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.d.ts' is older than input 'src/project1/src/a.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.tsbuildinfo' is older than input 'src/project1/src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -353,6 +382,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -382,6 +412,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -413,6 +444,10 @@ declare module "d" {
 }
 
 
+//// [/src/project1/outFile.tsbuildinfo] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: emit js files
@@ -456,6 +491,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -484,6 +520,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -531,6 +568,10 @@ define("d", ["require", "exports", "b"], function (require, exports, b_1) {
 });
 
 
+//// [/src/project1/outFile.tsbuildinfo] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -572,6 +613,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -587,6 +629,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: js emit with change without emitDeclarationOnly
@@ -602,7 +646,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.js' is older than input 'src/project1/src/b.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.tsbuildinfo' is older than input 'src/project1/src/b.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -633,6 +677,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -661,6 +706,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -709,6 +755,10 @@ define("d", ["require", "exports", "b"], function (require, exports, b_1) {
 });
 
 
+//// [/src/project1/outFile.tsbuildinfo] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: local change
@@ -724,7 +774,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.d.ts' is older than input 'src/project1/src/b.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.tsbuildinfo' is older than input 'src/project1/src/b.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -756,6 +806,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -785,6 +836,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -801,6 +853,10 @@ No shapes updated in the builder::
 
 
 //// [/src/project1/outFile.d.ts] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: non local change
@@ -816,7 +872,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.d.ts' is older than input 'src/project1/src/b.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.tsbuildinfo' is older than input 'src/project1/src/b.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -848,6 +904,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -877,6 +934,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -909,6 +967,10 @@ declare module "d" {
 }
 
 
+//// [/src/project1/outFile.tsbuildinfo] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: js emit with change without emitDeclarationOnly
@@ -924,7 +986,7 @@ Output::
     * src/project1/src/tsconfig.json
     * src/project2/src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.js' is older than input 'src/project1/src/b.ts'
+[HH:MM:SS AM] Project 'src/project1/src/tsconfig.json' is out of date because output 'src/project1/outFile.tsbuildinfo' is older than input 'src/project1/src/b.ts'
 
 [HH:MM:SS AM] Building project '/src/project1/src/tsconfig.json'...
 
@@ -955,6 +1017,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -983,6 +1046,7 @@ Program options: {
   "declaration": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1051,3 +1115,7 @@ define("d", ["require", "exports", "b"], function (require, exports, b_1) {
 });
 
 
+//// [/src/project1/outFile.tsbuildinfo] file written with same contents
+//// [/src/project1/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo] file written with same contents
+//// [/src/project2/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/commandLine/outFile/emitDeclarationOnly-on-commandline.js

@@ -87,6 +87,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -116,6 +117,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -376,6 +378,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -512,6 +515,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -541,6 +545,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -767,6 +772,7 @@ Program options: {
   "composite": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -790,6 +796,7 @@ Program options: {
   "composite": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1067,6 +1074,7 @@ Program options: {
   "composite": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1234,6 +1242,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1370,6 +1379,7 @@ Program options: {
   "outFile": "/src/project1/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1399,6 +1409,7 @@ Program options: {
   "outFile": "/src/project2/outFile.js",
   "module": 2,
   "emitDeclarationOnly": true,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1629,6 +1640,7 @@ Program options: {
   "composite": true,
   "outFile": "/src/project1/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project1/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -1657,6 +1669,7 @@ Program options: {
   "composite": true,
   "outFile": "/src/project2/outFile.js",
   "module": 2,
+  "tscBuild": true,
   "configFilePath": "/src/project2/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/declarationEmit/multiFile/reports-dts-generation-errors.js

@@ -73,7 +73,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/project/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project/tsconfig.json' is out of date because output file 'src/project/index.js' does not exist
+[HH:MM:SS AM] Project 'src/project/tsconfig.json' is out of date because output file 'src/project/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project/tsconfig.json'...
 
@@ -82,6 +82,7 @@ Output::
 2 export const api = ky.extend({});
                ~~~
 
+TSFILE: /src/project/tsconfig.tsbuildinfo
 lib/lib.esnext.full.d.ts
   Default library for target 'esnext'
 src/project/node_modules/ky/distribution/index.d.ts
@@ -96,6 +97,15 @@ Found 1 error.
 exitCode:: ExitStatus.DiagnosticsPresent_OutputsSkipped
 
 
+//// [/src/project/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -116,6 +126,7 @@ Output::
 2 export const api = ky.extend({});
                ~~~
 
+TSFILE: /src/project/tsconfig.tsbuildinfo
 lib/lib.esnext.full.d.ts
   Default library for target 'esnext'
 src/project/node_modules/ky/distribution/index.d.ts
@@ -130,3 +141,5 @@ Found 1 error.
 exitCode:: ExitStatus.DiagnosticsPresent_OutputsSkipped
 
 
+//// [/src/project/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/project/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/declarationEmit/outFile/reports-dts-generation-errors.js

@@ -64,7 +64,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/project/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/project/tsconfig.json' is out of date because output file 'src/project/outFile.js' does not exist
+[HH:MM:SS AM] Project 'src/project/tsconfig.json' is out of date because output file 'src/project/outFile.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/project/tsconfig.json'...
 
@@ -73,6 +73,7 @@ Output::
 2 export const api = ky.extend({});
                ~~~
 
+TSFILE: /src/project/outFile.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/project/ky.d.ts
@@ -85,6 +86,15 @@ Found 1 error.
 exitCode:: ExitStatus.DiagnosticsPresent_OutputsSkipped
 
 
+//// [/src/project/outFile.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/project/outFile.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -105,6 +115,7 @@ Output::
 2 export const api = ky.extend({});
                ~~~
 
+TSFILE: /src/project/outFile.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/project/ky.d.ts
@@ -117,3 +128,5 @@ Found 1 error.
 exitCode:: ExitStatus.DiagnosticsPresent_OutputsSkipped
 
 
+//// [/src/project/outFile.tsbuildinfo] file written with same contents
+//// [/src/project/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/extends/configDir-template.js

@@ -105,7 +105,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'outDir/main.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'outDir/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/home/src/projects/myproject/tsconfig.json'...
 
@@ -207,6 +207,15 @@ exports.z = void 0;
 exports.z = 10;
 
 
+//// [/home/src/projects/myproject/outDir/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/home/src/projects/myproject/outDir/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 //// [/home/src/projects/myproject/outDir/types/sometype.js]
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });

tests/baselines/reference/tsbuild/extends/resolves-the-symlink-path.js

@@ -110,6 +110,7 @@ Program options: {
   "composite": true,
   "removeComments": true,
   "extendedDiagnostics": true,
+  "tscBuild": true,
   "configFilePath": "/users/user/projects/myproject/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/fileDelete/multiFile/deleted-file-without-composite.js

@@ -39,7 +39,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/child/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/child/tsconfig.json' is out of date because output file 'src/child/child.js' does not exist
+[HH:MM:SS AM] Project 'src/child/tsconfig.json' is out of date because output file 'src/child/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/child/tsconfig.json'...
 
@@ -84,6 +84,15 @@ function child2() {
 }
 
 
+//// [/src/child/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/child/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: delete child2 file

tests/baselines/reference/tsbuild/fileDelete/outFile/deleted-file-without-composite.js

@@ -42,7 +42,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/child/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/child/tsconfig.json' is out of date because output file 'src/childResult.js' does not exist
+[HH:MM:SS AM] Project 'src/child/tsconfig.json' is out of date because output file 'src/childResult.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/child/tsconfig.json'...
 
@@ -86,6 +86,15 @@ define("child", ["require", "exports", "child2"], function (require, exports, ch
 });
 
 
+//// [/src/childResult.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/childResult.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: delete child2 file

tests/baselines/reference/tsbuild/libraryResolution/with-config-with-redirection.js

@@ -550,6 +550,7 @@ Program options: {
   ],
   "traceResolution": true,
   "explainFiles": true,
+  "tscBuild": true,
   "configFilePath": "/home/src/projects/project1/tsconfig.json"
 }
 Program structureReused: Not
@@ -601,6 +602,7 @@ Program options: {
   ],
   "traceResolution": true,
   "explainFiles": true,
+  "tscBuild": true,
   "configFilePath": "/home/src/projects/project2/tsconfig.json"
 }
 Program structureReused: Not
@@ -634,6 +636,7 @@ Program options: {
   ],
   "traceResolution": true,
   "explainFiles": true,
+  "tscBuild": true,
   "configFilePath": "/home/src/projects/project3/tsconfig.json"
 }
 Program structureReused: Not
@@ -668,6 +671,7 @@ Program options: {
   ],
   "traceResolution": true,
   "explainFiles": true,
+  "tscBuild": true,
   "configFilePath": "/home/src/projects/project4/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/libraryResolution/with-config.js

@@ -533,6 +533,7 @@ Program options: {
   ],
   "traceResolution": true,
   "explainFiles": true,
+  "tscBuild": true,
   "configFilePath": "/home/src/projects/project1/tsconfig.json"
 }
 Program structureReused: Not
@@ -584,6 +585,7 @@ Program options: {
   ],
   "traceResolution": true,
   "explainFiles": true,
+  "tscBuild": true,
   "configFilePath": "/home/src/projects/project2/tsconfig.json"
 }
 Program structureReused: Not
@@ -617,6 +619,7 @@ Program options: {
   ],
   "traceResolution": true,
   "explainFiles": true,
+  "tscBuild": true,
   "configFilePath": "/home/src/projects/project3/tsconfig.json"
 }
 Program structureReused: Not
@@ -651,6 +654,7 @@ Program options: {
   ],
   "traceResolution": true,
   "explainFiles": true,
+  "tscBuild": true,
   "configFilePath": "/home/src/projects/project4/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/moduleResolution/impliedNodeFormat-differs-between-projects-for-shared-file.js

@@ -74,7 +74,7 @@ Output::
     * src/projects/a/tsconfig.json
     * src/projects/b/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/projects/a/tsconfig.json' is out of date because output file 'src/projects/a/src/index.js' does not exist
+[HH:MM:SS AM] Project 'src/projects/a/tsconfig.json' is out of date because output file 'src/projects/a/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/projects/a/tsconfig.json'...
 
@@ -102,7 +102,7 @@ src/projects/a/src/index.ts
   Matched by default include pattern '**/*'
 src/projects/node_modules/@types/pg/index.d.ts
   Entry point for implicit type library 'pg'
-[HH:MM:SS AM] Project 'src/projects/b/tsconfig.json' is out of date because output file 'src/projects/b/src/index.js' does not exist
+[HH:MM:SS AM] Project 'src/projects/b/tsconfig.json' is out of date because output file 'src/projects/b/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/projects/b/tsconfig.json'...
 
@@ -151,11 +151,29 @@ exitCode:: ExitStatus.Success
 "use strict";
 
 
+//// [/src/projects/a/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/projects/a/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 //// [/src/projects/b/src/index.js]
 import pg from "pg";
 pg.foo();
 
 
+//// [/src/projects/b/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/projects/b/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/moduleResolution/resolves-specifier-in-output-declaration-file-from-referenced-project-correctly-with-preserveSymlinks.js

@@ -77,7 +77,7 @@ File '/user/username/projects/myproject/packages/pkg2/const.ts' exists - use it
 File '/a/lib/package.json' does not exist.
 File '/a/package.json' does not exist.
 File '/package.json' does not exist.
-[HH:MM:SS AM] Project 'packages/pkg1/tsconfig.json' is out of date because output file 'packages/pkg1/build/index.js' does not exist
+[HH:MM:SS AM] Project 'packages/pkg1/tsconfig.json' is out of date because output file 'packages/pkg1/build/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/myproject/packages/pkg1/tsconfig.json'...
 
@@ -222,6 +222,15 @@ exports.theNum = void 0;
 exports.theNum = 42;
 
 
+//// [/user/username/projects/myproject/packages/pkg1/build/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/myproject/packages/pkg1/build/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 Program root files: [
   "/user/username/projects/myproject/packages/pkg2/const.ts",
@@ -233,6 +242,7 @@ Program options: {
   "baseUrl": "/user/username/projects/myproject/packages/pkg2",
   "preserveSymlinks": true,
   "traceResolution": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/packages/pkg2/tsconfig.json"
 }
 Program structureReused: Not
@@ -258,6 +268,7 @@ Program options: {
   "outDir": "/user/username/projects/myproject/packages/pkg1/build",
   "preserveSymlinks": true,
   "traceResolution": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/packages/pkg1/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/moduleResolution/resolves-specifier-in-output-declaration-file-from-referenced-project-correctly.js

@@ -75,7 +75,7 @@ File '/user/username/projects/myproject/packages/pkg2/const.ts' exists - use it
 File '/a/lib/package.json' does not exist.
 File '/a/package.json' does not exist.
 File '/package.json' does not exist.
-[HH:MM:SS AM] Project 'packages/pkg1/tsconfig.json' is out of date because output file 'packages/pkg1/build/index.js' does not exist
+[HH:MM:SS AM] Project 'packages/pkg1/tsconfig.json' is out of date because output file 'packages/pkg1/build/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/myproject/packages/pkg1/tsconfig.json'...
 
@@ -221,6 +221,15 @@ exports.theNum = void 0;
 exports.theNum = 42;
 
 
+//// [/user/username/projects/myproject/packages/pkg1/build/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/myproject/packages/pkg1/build/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 Program root files: [
   "/user/username/projects/myproject/packages/pkg2/const.ts",
@@ -231,6 +240,7 @@ Program options: {
   "outDir": "/user/username/projects/myproject/packages/pkg2/build",
   "baseUrl": "/user/username/projects/myproject/packages/pkg2",
   "traceResolution": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/packages/pkg2/tsconfig.json"
 }
 Program structureReused: Not
@@ -255,6 +265,7 @@ Program root files: [
 Program options: {
   "outDir": "/user/username/projects/myproject/packages/pkg1/build",
   "traceResolution": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/packages/pkg1/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/moduleResolution/shared-resolution-should-not-report-error.js

@@ -128,7 +128,7 @@ packages/a/index.js
 packages/a/test/index.js
   Matched by default include pattern '**/*'
   File is ECMAScript module because 'packages/a/package.json' has field "type" with value "module"
-[HH:MM:SS AM] Project 'packages/b/tsconfig.json' is out of date because output 'packages/b/index.js' is older than input 'packages/a'
+[HH:MM:SS AM] Project 'packages/b/tsconfig.json' is out of date because output file 'packages/b/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/projects/project/packages/b/tsconfig.json'...
 
@@ -242,3 +242,12 @@ export {};
   "size": 983
 }
 
+//// [/src/projects/project/packages/b/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/projects/project/packages/b/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/moduleResolution/when-resolution-is-not-shared.js

@@ -228,7 +228,7 @@ Output::
 
 [HH:MM:SS AM] Project 'packages/a/tsconfig.json' is up to date because newest input 'packages/a/test/index.js' is older than output 'packages/a/types/tsconfig.tsbuildinfo'
 
-[HH:MM:SS AM] Project 'packages/b/tsconfig.json' is out of date because output 'packages/b/index.js' is older than input 'packages/b/tsconfig.json'
+[HH:MM:SS AM] Project 'packages/b/tsconfig.json' is out of date because output file 'packages/b/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/projects/project/packages/b/tsconfig.json'...
 
@@ -266,3 +266,12 @@ packages/b/index.js
 exitCode:: ExitStatus.Success
 
 
+//// [/src/projects/project/packages/b/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/projects/project/packages/b/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/noCheck-errors/semantic-errors-with-incremental.js

@@ -55,6 +55,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -149,6 +150,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -196,6 +198,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -290,6 +293,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -341,6 +345,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -456,6 +461,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noCheck-errors/semantic-errors.js

@@ -35,7 +35,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -54,6 +54,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -66,6 +67,15 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -96,6 +106,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -108,6 +119,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix `a` error
@@ -123,7 +136,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output 'src/tsconfig.tsbuildinfo' is older than input 'src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -142,6 +155,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -154,6 +168,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -184,6 +200,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -196,6 +213,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Disable noCheck
@@ -234,6 +253,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -250,6 +270,8 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -280,6 +302,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -296,3 +319,5 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/noCheck-errors/syntax-errors-with-incremental.js

@@ -60,6 +60,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -159,6 +160,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -206,6 +208,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -300,6 +303,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -351,6 +355,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -466,6 +471,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noCheck-errors/syntax-errors.js

@@ -35,7 +35,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -59,6 +59,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -71,6 +72,15 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -106,6 +116,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -118,6 +129,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix `a` error
@@ -133,7 +146,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output 'src/tsconfig.tsbuildinfo' is older than input 'src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -152,6 +165,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -164,6 +178,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -194,6 +210,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -206,6 +223,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Disable noCheck
@@ -244,6 +263,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -260,6 +280,8 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -290,6 +312,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -306,3 +329,5 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/noCheck/semantic-errors-with-incremental.js

@@ -48,6 +48,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -162,6 +163,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -285,6 +287,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -330,6 +333,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noCheck/semantic-errors.js

@@ -35,7 +35,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -47,6 +47,7 @@ Program options: {
   "noCheck": true,
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -68,6 +69,15 @@ declare const err: number;
 declare const a: number;
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -99,7 +109,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output 'src/a.d.ts' is older than input 'src/a.ts'
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output 'src/tsconfig.tsbuildinfo' is older than input 'src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -111,6 +121,7 @@ Program options: {
   "noCheck": true,
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -132,6 +143,8 @@ declare const err: number;
 declare const a = "hello";
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -186,6 +199,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -202,6 +216,8 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -232,6 +248,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -248,3 +265,5 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/noCheck/syntax-errors-with-incremental.js

@@ -56,6 +56,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -152,6 +153,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -192,6 +194,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -317,6 +320,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -362,6 +366,7 @@ Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noCheck/syntax-errors.js

@@ -35,7 +35,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -55,6 +55,7 @@ Program options: {
   "noCheck": true,
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -67,6 +68,15 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -98,6 +108,7 @@ Program options: {
   "noCheck": true,
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -110,6 +121,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix `a` error
@@ -125,7 +138,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.d.ts' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output 'src/tsconfig.tsbuildinfo' is older than input 'src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -137,6 +150,7 @@ Program options: {
   "noCheck": true,
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -158,6 +172,8 @@ declare const err: number;
 declare const a = "hello";
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -212,6 +228,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -228,6 +245,8 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -258,6 +277,7 @@ Program root files: [
 Program options: {
   "emitDeclarationOnly": true,
   "declaration": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -274,3 +294,5 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/noEmit/multiFile/semantic-errors-with-incremental.js

@@ -51,6 +51,7 @@ Program root files: [
 Program options: {
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -160,6 +161,7 @@ Program root files: [
 Program options: {
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -197,6 +199,7 @@ Program root files: [
 Program options: {
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmit/multiFile/semantic-errors.js

@@ -32,7 +32,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -50,6 +50,7 @@ Program root files: [
 ]
 Program options: {
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -66,6 +67,15 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -95,6 +105,7 @@ Program root files: [
 ]
 Program options: {
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -111,6 +122,8 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -125,7 +138,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output 'src/tsconfig.tsbuildinfo' is older than input 'src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -135,6 +148,7 @@ Program root files: [
 ]
 Program options: {
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -151,6 +165,8 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -172,6 +188,7 @@ Program root files: [
 ]
 Program options: {
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -188,3 +205,5 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/noEmit/multiFile/syntax-errors-with-incremental.js

@@ -51,6 +51,7 @@ Program root files: [
 Program options: {
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -140,6 +141,7 @@ Program root files: [
 Program options: {
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -177,6 +179,7 @@ Program root files: [
 Program options: {
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmit/multiFile/syntax-errors.js

@@ -32,7 +32,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -50,6 +50,7 @@ Program root files: [
 ]
 Program options: {
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -62,6 +63,15 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -91,6 +101,7 @@ Program root files: [
 ]
 Program options: {
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -103,6 +114,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -117,7 +130,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/a.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output 'src/tsconfig.tsbuildinfo' is older than input 'src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -127,6 +140,7 @@ Program root files: [
 ]
 Program options: {
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -143,6 +157,8 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -164,6 +180,7 @@ Program root files: [
 ]
 Program options: {
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -180,3 +197,5 @@ Shape signatures in builder refreshed for::
 /src/a.ts (used version)
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/noEmit/outFile/semantic-errors-with-incremental.js

@@ -53,6 +53,7 @@ Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -156,6 +157,7 @@ Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -194,6 +196,7 @@ Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmit/outFile/semantic-errors.js

@@ -33,7 +33,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'outFile.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'outFile.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -52,6 +52,7 @@ Program root files: [
 Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -66,6 +67,15 @@ Semantic diagnostics in builder refreshed for::
 No shapes updated in the builder::
 
 
+//// [/outFile.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/outFile.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -96,6 +106,7 @@ Program root files: [
 Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -110,6 +121,8 @@ Semantic diagnostics in builder refreshed for::
 No shapes updated in the builder::
 
 
+//// [/outFile.tsbuildinfo] file written with same contents
+//// [/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -124,7 +137,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'outFile.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output 'outFile.tsbuildinfo' is older than input 'src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -135,6 +148,7 @@ Program root files: [
 Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -149,6 +163,8 @@ Semantic diagnostics in builder refreshed for::
 No shapes updated in the builder::
 
 
+//// [/outFile.tsbuildinfo] file written with same contents
+//// [/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -171,6 +187,7 @@ Program root files: [
 Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -185,3 +202,5 @@ Semantic diagnostics in builder refreshed for::
 No shapes updated in the builder::
 
 
+//// [/outFile.tsbuildinfo] file written with same contents
+//// [/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/noEmit/outFile/syntax-errors-with-incremental.js

@@ -53,6 +53,7 @@ Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -140,6 +141,7 @@ Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -178,6 +180,7 @@ Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
   "incremental": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmit/outFile/syntax-errors.js

@@ -33,7 +33,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'outFile.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'outFile.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -52,6 +52,7 @@ Program root files: [
 Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -64,6 +65,15 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/outFile.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/outFile.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -94,6 +104,7 @@ Program root files: [
 Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -106,6 +117,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/outFile.tsbuildinfo] file written with same contents
+//// [/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -120,7 +133,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'outFile.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output 'outFile.tsbuildinfo' is older than input 'src/a.ts'
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -131,6 +144,7 @@ Program root files: [
 Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -145,6 +159,8 @@ Semantic diagnostics in builder refreshed for::
 No shapes updated in the builder::
 
 
+//// [/outFile.tsbuildinfo] file written with same contents
+//// [/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run
@@ -167,6 +183,7 @@ Program root files: [
 Program options: {
   "outFile": "/outFile.js",
   "noEmit": true,
+  "tscBuild": true,
   "configFilePath": "/src/tsconfig.json"
 }
 Program structureReused: Not
@@ -181,3 +198,5 @@ Semantic diagnostics in builder refreshed for::
 No shapes updated in the builder::
 
 
+//// [/outFile.tsbuildinfo] file written with same contents
+//// [/outFile.tsbuildinfo.readable.baseline.txt] file written with same contents

tests/baselines/reference/tsbuild/noEmitOnError/multiFile/semantic-errors-with-declaration-with-incremental.js

@@ -70,6 +70,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -237,6 +238,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -281,6 +283,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmitOnError/multiFile/semantic-errors-with-declaration.js

@@ -46,7 +46,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/shared/types/db.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -68,6 +68,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -90,6 +91,15 @@ Shape signatures in builder refreshed for::
 /user/username/projects/noemitonerror/src/other.ts (used version)
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -123,6 +133,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -145,6 +156,8 @@ Shape signatures in builder refreshed for::
 /user/username/projects/noemitonerror/src/other.ts (used version)
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo] file written with same contents
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -160,7 +173,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/shared/types/db.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output 'dev-build/tsconfig.tsbuildinfo' is older than input 'src/main.ts'
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -174,6 +187,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -227,6 +241,8 @@ Object.defineProperty(exports, "__esModule", { value: true });
 console.log("hi");
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo] file written with same contents
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/noEmitOnError/multiFile/semantic-errors-with-incremental.js

@@ -68,6 +68,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -233,6 +234,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -276,6 +278,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmitOnError/multiFile/semantic-errors.js

@@ -45,7 +45,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/shared/types/db.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -66,6 +66,7 @@ Program root files: [
 Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -88,6 +89,15 @@ Shape signatures in builder refreshed for::
 /user/username/projects/noemitonerror/src/other.ts (used version)
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -120,6 +130,7 @@ Program root files: [
 Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -142,6 +153,8 @@ Shape signatures in builder refreshed for::
 /user/username/projects/noemitonerror/src/other.ts (used version)
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo] file written with same contents
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -157,7 +170,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/shared/types/db.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output 'dev-build/tsconfig.tsbuildinfo' is older than input 'src/main.ts'
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -170,6 +183,7 @@ Program root files: [
 Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -209,6 +223,8 @@ Object.defineProperty(exports, "__esModule", { value: true });
 console.log("hi");
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo] file written with same contents
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/noEmitOnError/multiFile/syntax-errors-with-declaration-with-incremental.js

@@ -73,6 +73,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -210,6 +211,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -256,6 +258,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmitOnError/multiFile/syntax-errors-with-declaration.js

@@ -49,7 +49,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/shared/types/db.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -71,6 +71,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -85,6 +86,15 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -118,6 +128,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -132,6 +143,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo] file written with same contents
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -149,7 +162,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/shared/types/db.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output 'dev-build/tsconfig.tsbuildinfo' is older than input 'src/main.ts'
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -163,6 +176,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -218,6 +232,8 @@ Object.defineProperty(exports, "__esModule", { value: true });
 console.log("hi");
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo] file written with same contents
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/noEmitOnError/multiFile/syntax-errors-with-incremental.js

@@ -71,6 +71,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -206,6 +207,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -251,6 +253,7 @@ Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmitOnError/multiFile/syntax-errors.js

@@ -48,7 +48,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/shared/types/db.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -69,6 +69,7 @@ Program root files: [
 Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -83,6 +84,15 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -115,6 +125,7 @@ Program root files: [
 Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -129,6 +140,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo] file written with same contents
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -146,7 +159,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file 'dev-build/shared/types/db.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output 'dev-build/tsconfig.tsbuildinfo' is older than input 'src/main.ts'
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -159,6 +172,7 @@ Program root files: [
 Program options: {
   "outDir": "/user/username/projects/noEmitOnError/dev-build",
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -200,6 +214,8 @@ Object.defineProperty(exports, "__esModule", { value: true });
 console.log("hi");
 
 
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo] file written with same contents
+//// [/user/username/projects/noEmitOnError/dev-build/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/noEmitOnError/outFile/semantic-errors-with-declaration-with-incremental.js

@@ -72,6 +72,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -211,6 +212,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -256,6 +258,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmitOnError/outFile/semantic-errors-with-declaration.js

@@ -47,7 +47,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -70,6 +70,7 @@ Program options: {
   "module": 2,
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -88,6 +89,15 @@ Semantic diagnostics in builder refreshed for::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -122,6 +132,7 @@ Program options: {
   "module": 2,
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -140,6 +151,8 @@ Semantic diagnostics in builder refreshed for::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo] file written with same contents
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -155,7 +168,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output '../dev-build.tsbuildinfo' is older than input 'src/main.ts'
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -170,6 +183,7 @@ Program options: {
   "module": 2,
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -217,6 +231,8 @@ define("src/other", ["require", "exports"], function (require, exports) {
 });
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo] file written with same contents
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/noEmitOnError/outFile/semantic-errors-with-incremental.js

@@ -70,6 +70,7 @@ Program options: {
   "module": 2,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -207,6 +208,7 @@ Program options: {
   "module": 2,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -251,6 +253,7 @@ Program options: {
   "module": 2,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmitOnError/outFile/semantic-errors.js

@@ -46,7 +46,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -68,6 +68,7 @@ Program options: {
   "outFile": "/user/username/projects/dev-build.js",
   "module": 2,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -86,6 +87,15 @@ Semantic diagnostics in builder refreshed for::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -119,6 +129,7 @@ Program options: {
   "outFile": "/user/username/projects/dev-build.js",
   "module": 2,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -137,6 +148,8 @@ Semantic diagnostics in builder refreshed for::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo] file written with same contents
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -152,7 +165,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output '../dev-build.tsbuildinfo' is older than input 'src/main.ts'
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -166,6 +179,7 @@ Program options: {
   "outFile": "/user/username/projects/dev-build.js",
   "module": 2,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -201,6 +215,8 @@ define("src/other", ["require", "exports"], function (require, exports) {
 });
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo] file written with same contents
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/noEmitOnError/outFile/syntax-errors-with-declaration-with-incremental.js

@@ -75,6 +75,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -198,6 +199,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -245,6 +247,7 @@ Program options: {
   "declaration": true,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmitOnError/outFile/syntax-errors-with-declaration.js

@@ -50,7 +50,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -73,6 +73,7 @@ Program options: {
   "module": 2,
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -87,6 +88,15 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -121,6 +131,7 @@ Program options: {
   "module": 2,
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -135,6 +146,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo] file written with same contents
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -152,7 +165,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output '../dev-build.tsbuildinfo' is older than input 'src/main.ts'
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -167,6 +180,7 @@ Program options: {
   "module": 2,
   "declaration": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -216,6 +230,8 @@ define("src/other", ["require", "exports"], function (require, exports) {
 });
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo] file written with same contents
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/noEmitOnError/outFile/syntax-errors-with-incremental.js

@@ -73,6 +73,7 @@ Program options: {
   "module": 2,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -194,6 +195,7 @@ Program options: {
   "module": 2,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -240,6 +242,7 @@ Program options: {
   "module": 2,
   "incremental": true,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/noEmitOnError/outFile/syntax-errors.js

@@ -49,7 +49,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -71,6 +71,7 @@ Program options: {
   "outFile": "/user/username/projects/dev-build.js",
   "module": 2,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -85,6 +86,15 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -118,6 +128,7 @@ Program options: {
   "outFile": "/user/username/projects/dev-build.js",
   "module": 2,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -132,6 +143,8 @@ No cached semantic diagnostics in the builder::
 No shapes updated in the builder::
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo] file written with same contents
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Fix error
@@ -149,7 +162,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * tsconfig.json
 
-[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output file '../dev-build.js' does not exist
+[HH:MM:SS AM] Project 'tsconfig.json' is out of date because output '../dev-build.tsbuildinfo' is older than input 'src/main.ts'
 
 [HH:MM:SS AM] Building project '/user/username/projects/noEmitOnError/tsconfig.json'...
 
@@ -163,6 +176,7 @@ Program options: {
   "outFile": "/user/username/projects/dev-build.js",
   "module": 2,
   "noEmitOnError": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/noEmitOnError/tsconfig.json"
 }
 Program structureReused: Not
@@ -200,6 +214,8 @@ define("src/other", ["require", "exports"], function (require, exports) {
 });
 
 
+//// [/user/username/projects/dev-build.tsbuildinfo] file written with same contents
+//// [/user/username/projects/dev-build.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/outFile/rebuilds-completely-when-command-line-incremental-flag-changes-between-non-dts-changes-discrepancies.js

@@ -0,0 +1,84 @@
+0:: Make non incremental build with change in file that doesnt affect dts
+Clean build is non incremental so it will have non incremental tsbuildInfo for third project
+The incremental build does not build third so will only update timestamps for third tsbuildInfo and hence its from incremental build before
+TsBuild info text without affectedFilesPendingEmit:: /src/third/thirdjs/output/third-output.tsbuildinfo.readable.baseline.txt::
+CleanBuild:
+{
+  "version": "FakeTSVersion"
+}
+IncrementalBuild:
+{
+  "fileInfos": {
+    "../../../../lib/lib.d.ts": {
+      "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+      "impliedFormat": "commonjs"
+    },
+    "../../../first/bin/first-output.d.ts": {
+      "version": "-15957783529-interface TheFirst {\n    none: any;\n}\ndeclare const s = \"Hello, world\";\ninterface NoJsForHereEither {\n    none: any;\n}\ndeclare function f(): string;\n",
+      "impliedFormat": "commonjs"
+    },
+    "../../../2/second-output.d.ts": {
+      "version": "-2513601205-declare namespace N {\n}\ndeclare namespace N {\n}\ndeclare class C {\n    doSomething(): void;\n}\n",
+      "impliedFormat": "commonjs"
+    },
+    "../../third_part1.ts": {
+      "version": "7305100057-var c = new C();\nc.doSomething();\n",
+      "impliedFormat": "commonjs"
+    }
+  },
+  "root": [
+    [
+      4,
+      "../../third_part1.ts"
+    ]
+  ],
+  "options": {
+    "declaration": true,
+    "declarationMap": true,
+    "outFile": "./third-output.js",
+    "removeComments": true,
+    "skipDefaultLibCheck": true,
+    "sourceMap": true,
+    "strict": false,
+    "target": 1
+  },
+  "version": "FakeTSVersion"
+}
+Incremental and clean do not match:: FileInfos:: File:: /src/third/thirdjs/output/third-output.tsbuildinfo.readable.baseline.txt
+CleanBuild:
+
+IncrementalBuild:
+{
+  "../../../../lib/lib.d.ts": {
+    "original": {
+      "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+      "impliedFormat": 1
+    },
+    "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+    "impliedFormat": "commonjs"
+  },
+  "../../../first/bin/first-output.d.ts": {
+    "original": {
+      "version": "-15957783529-interface TheFirst {\n    none: any;\n}\ndeclare const s = \"Hello, world\";\ninterface NoJsForHereEither {\n    none: any;\n}\ndeclare function f(): string;\n",
+      "impliedFormat": 1
+    },
+    "version": "-15957783529-interface TheFirst {\n    none: any;\n}\ndeclare const s = \"Hello, world\";\ninterface NoJsForHereEither {\n    none: any;\n}\ndeclare function f(): string;\n",
+    "impliedFormat": "commonjs"
+  },
+  "../../../2/second-output.d.ts": {
+    "original": {
+      "version": "-2513601205-declare namespace N {\n}\ndeclare namespace N {\n}\ndeclare class C {\n    doSomething(): void;\n}\n",
+      "impliedFormat": 1
+    },
+    "version": "-2513601205-declare namespace N {\n}\ndeclare namespace N {\n}\ndeclare class C {\n    doSomething(): void;\n}\n",
+    "impliedFormat": "commonjs"
+  },
+  "../../third_part1.ts": {
+    "original": {
+      "version": "7305100057-var c = new C();\nc.doSomething();\n",
+      "impliedFormat": 1
+    },
+    "version": "7305100057-var c = new C();\nc.doSomething();\n",
+    "impliedFormat": "commonjs"
+  }
+}

tests/baselines/reference/tsbuild/outFile/rebuilds-completely-when-command-line-incremental-flag-changes-between-non-dts-changes.js

@@ -561,6 +561,7 @@ function f() {
 //// [/src/third/thirdjs/output/third-output.d.ts.map] file changed its modified time
 //// [/src/third/thirdjs/output/third-output.js] file changed its modified time
 //// [/src/third/thirdjs/output/third-output.js.map] file changed its modified time
+//// [/src/third/thirdjs/output/third-output.tsbuildinfo] file changed its modified time
 
 
 Change:: Make incremental build with change in file that doesnt affect dts

tests/baselines/reference/tsbuild/outFile/tsbuildinfo-is-not-generated-when-incremental-is-set-to-false.js

@@ -145,7 +145,7 @@ Output::
 
 [HH:MM:SS AM] Building project '/src/second/tsconfig.json'...
 
-[HH:MM:SS AM] Project 'src/third/tsconfig.json' is out of date because output file 'src/third/thirdjs/output/third-output.js' does not exist
+[HH:MM:SS AM] Project 'src/third/tsconfig.json' is out of date because output file 'src/third/thirdjs/output/third-output.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/third/tsconfig.json'...
 
@@ -364,3 +364,12 @@ c.doSomething();
 //// [/src/third/thirdjs/output/third-output.js.map]
 {"version":3,"file":"third-output.js","sourceRoot":"","sources":["../../third_part1.ts"],"names":[],"mappings":"AAAA,IAAI,CAAC,GAAG,IAAI,CAAC,EAAE,CAAC;AAChB,CAAC,CAAC,WAAW,EAAE,CAAC"}
 
+//// [/src/third/thirdjs/output/third-output.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/third/thirdjs/output/third-output.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/outFile/when-final-project-is-not-composite-but-uses-project-references.js

@@ -145,7 +145,7 @@ Output::
 
 [HH:MM:SS AM] Building project '/src/second/tsconfig.json'...
 
-[HH:MM:SS AM] Project 'src/third/tsconfig.json' is out of date because output file 'src/third/thirdjs/output/third-output.js' does not exist
+[HH:MM:SS AM] Project 'src/third/tsconfig.json' is out of date because output file 'src/third/thirdjs/output/third-output.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/third/tsconfig.json'...
 
@@ -1084,6 +1084,15 @@ sourceFile:../../third_part1.ts
 ---
 >>>//# sourceMappingURL=third-output.js.map
 
+//// [/src/third/thirdjs/output/third-output.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/third/thirdjs/output/third-output.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: incremental-declaration-doesnt-change
@@ -1388,3 +1397,4 @@ sourceFile:../first_part3.ts
 //// [/src/third/thirdjs/output/third-output.d.ts.map] file changed its modified time
 //// [/src/third/thirdjs/output/third-output.js] file changed its modified time
 //// [/src/third/thirdjs/output/third-output.js.map] file changed its modified time
+//// [/src/third/thirdjs/output/third-output.tsbuildinfo] file changed its modified time

tests/baselines/reference/tsbuild/outputPaths/when-rootDir-is-not-specified.js

@@ -32,7 +32,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -46,6 +46,15 @@ exports.x = void 0;
 exports.x = 10;
 
 
+//// [/src/dist/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/dist/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/outputPaths/when-rootDir-is-specified-but-not-all-files-belong-to-rootDir.js

@@ -36,7 +36,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -50,6 +50,15 @@ Found 1 error.
 exitCode:: ExitStatus.DiagnosticsPresent_OutputsSkipped
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run
@@ -75,6 +84,8 @@ Found 1 error.
 exitCode:: ExitStatus.DiagnosticsPresent_OutputsSkipped
 
 
+//// [/src/tsconfig.tsbuildinfo] file written with same contents
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt] file written with same contents
 
 
 Change:: Normal build without change, that does not block emit on error to show files that get emitted

tests/baselines/reference/tsbuild/outputPaths/when-rootDir-is-specified.js

@@ -33,7 +33,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
@@ -47,6 +47,15 @@ exports.x = void 0;
 exports.x = 10;
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/projectReferenceWithRootDirInParent/reports-error-for-same-tsbuildinfo-file-without-incremental-with-tsc.js

@@ -0,0 +1,161 @@
+currentDirectory:: / useCaseSensitiveFileNames: false
+Input::
+//// [/lib/lib.d.ts]
+/// <reference no-default-lib="true"/>
+interface Boolean {}
+interface Function {}
+interface CallableFunction {}
+interface NewableFunction {}
+interface IArguments {}
+interface Number { toExponential: any; }
+interface Object {}
+interface RegExp {}
+interface String { charAt: any; }
+interface Array<T> { length: number; [n: number]: T; }
+interface ReadonlyArray<T> {}
+declare const console: { log(msg: any): void; };
+
+//// [/src/src/main/a.ts]
+import { b } from './b';
+const a = b;
+
+
+//// [/src/src/main/b.ts]
+export const b = 0;
+
+
+//// [/src/src/main/tsconfig.json]
+{
+  "compilerOptions": {
+    "outDir": "../../dist/"
+  },
+  "references": [
+    {
+      "path": "../other"
+    }
+  ]
+}
+
+//// [/src/src/other/other.ts]
+export const Other = 0;
+
+
+//// [/src/src/other/tsconfig.json]
+{
+  "compilerOptions": {
+    "composite": true,
+    "outDir": "../../dist/"
+  }
+}
+
+//// [/src/tsconfig.base.json]
+{
+  "compilerOptions": {
+    "composite": true,
+    "declaration": true,
+    "rootDir": "./src/",
+    "outDir": "./dist/",
+    "skipDefaultLibCheck": true
+  },
+  "exclude": [
+    "node_modules"
+  ]
+}
+
+
+
+Output::
+/lib/tsc --b /src/src/other --verbose
+[HH:MM:SS AM] Projects in this build: 
+    * src/src/other/tsconfig.json
+
+[HH:MM:SS AM] Project 'src/src/other/tsconfig.json' is out of date because output file 'src/dist/tsconfig.tsbuildinfo' does not exist
+
+[HH:MM:SS AM] Building project '/src/src/other/tsconfig.json'...
+
+exitCode:: ExitStatus.Success
+
+
+//// [/src/dist/other.d.ts]
+export declare const Other = 0;
+
+
+//// [/src/dist/other.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Other = void 0;
+exports.Other = 0;
+
+
+//// [/src/dist/tsconfig.tsbuildinfo]
+{"fileNames":["../../lib/lib.d.ts","../src/other/other.ts"],"fileInfos":[{"version":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","affectsGlobalScope":true,"impliedFormat":1},{"version":"-4254247902-export const Other = 0;\n","signature":"-10003600206-export declare const Other = 0;\n","impliedFormat":1}],"root":[2],"options":{"composite":true,"outDir":"./"},"latestChangedDtsFile":"./other.d.ts","version":"FakeTSVersion"}
+
+//// [/src/dist/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "fileNames": [
+    "../../lib/lib.d.ts",
+    "../src/other/other.ts"
+  ],
+  "fileInfos": {
+    "../../lib/lib.d.ts": {
+      "original": {
+        "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "affectsGlobalScope": true,
+        "impliedFormat": 1
+      },
+      "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+      "signature": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+      "affectsGlobalScope": true,
+      "impliedFormat": "commonjs"
+    },
+    "../src/other/other.ts": {
+      "original": {
+        "version": "-4254247902-export const Other = 0;\n",
+        "signature": "-10003600206-export declare const Other = 0;\n",
+        "impliedFormat": 1
+      },
+      "version": "-4254247902-export const Other = 0;\n",
+      "signature": "-10003600206-export declare const Other = 0;\n",
+      "impliedFormat": "commonjs"
+    }
+  },
+  "root": [
+    [
+      2,
+      "../src/other/other.ts"
+    ]
+  ],
+  "options": {
+    "composite": true,
+    "outDir": "./"
+  },
+  "latestChangedDtsFile": "./other.d.ts",
+  "version": "FakeTSVersion",
+  "size": 820
+}
+
+
+
+Change:: Running tsc on main
+Input::
+
+
+Output::
+/lib/tsc -p /src/src/main
+exitCode:: ExitStatus.Success
+
+
+//// [/src/dist/a.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var b_1 = require("./b");
+var a = b_1.b;
+
+
+//// [/src/dist/b.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.b = void 0;
+exports.b = 0;
+
+

tests/baselines/reference/tsbuild/projectReferenceWithRootDirInParent/reports-error-for-same-tsbuildinfo-file-without-incremental.js

@@ -0,0 +1,153 @@
+currentDirectory:: / useCaseSensitiveFileNames: false
+Input::
+//// [/lib/lib.d.ts]
+/// <reference no-default-lib="true"/>
+interface Boolean {}
+interface Function {}
+interface CallableFunction {}
+interface NewableFunction {}
+interface IArguments {}
+interface Number { toExponential: any; }
+interface Object {}
+interface RegExp {}
+interface String { charAt: any; }
+interface Array<T> { length: number; [n: number]: T; }
+interface ReadonlyArray<T> {}
+declare const console: { log(msg: any): void; };
+
+//// [/src/src/main/a.ts]
+import { b } from './b';
+const a = b;
+
+
+//// [/src/src/main/b.ts]
+export const b = 0;
+
+
+//// [/src/src/main/tsconfig.json]
+{
+  "compilerOptions": {
+    "outDir": "../../dist/"
+  },
+  "references": [
+    {
+      "path": "../other"
+    }
+  ]
+}
+
+//// [/src/src/other/other.ts]
+export const Other = 0;
+
+
+//// [/src/src/other/tsconfig.json]
+{
+  "compilerOptions": {
+    "composite": true,
+    "outDir": "../../dist/"
+  }
+}
+
+//// [/src/tsconfig.base.json]
+{
+  "compilerOptions": {
+    "composite": true,
+    "declaration": true,
+    "rootDir": "./src/",
+    "outDir": "./dist/",
+    "skipDefaultLibCheck": true
+  },
+  "exclude": [
+    "node_modules"
+  ]
+}
+
+
+
+Output::
+/lib/tsc --b /src/src/main --verbose
+[HH:MM:SS AM] Projects in this build: 
+    * src/src/other/tsconfig.json
+    * src/src/main/tsconfig.json
+
+[HH:MM:SS AM] Project 'src/src/other/tsconfig.json' is out of date because output file 'src/dist/tsconfig.tsbuildinfo' does not exist
+
+[HH:MM:SS AM] Building project '/src/src/other/tsconfig.json'...
+
+[HH:MM:SS AM] Project 'src/src/main/tsconfig.json' is out of date because output file 'src/dist/a.js' does not exist
+
+[HH:MM:SS AM] Building project '/src/src/main/tsconfig.json'...
+
+src/src/main/tsconfig.json:6:5 - error TS6377: Cannot write file '/src/dist/tsconfig.tsbuildinfo' because it will overwrite '.tsbuildinfo' file generated by referenced project '/src/src/other'
+
+6     {
+      ~
+7       "path": "../other"
+  ~~~~~~~~~~~~~~~~~~~~~~~~
+8     }
+  ~~~~~
+
+
+Found 1 error.
+
+exitCode:: ExitStatus.DiagnosticsPresent_OutputsGenerated
+
+
+//// [/src/dist/other.d.ts]
+export declare const Other = 0;
+
+
+//// [/src/dist/other.js]
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Other = void 0;
+exports.Other = 0;
+
+
+//// [/src/dist/tsconfig.tsbuildinfo]
+{"fileNames":["../../lib/lib.d.ts","../src/other/other.ts"],"fileInfos":[{"version":"3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };","affectsGlobalScope":true,"impliedFormat":1},{"version":"-4254247902-export const Other = 0;\n","signature":"-10003600206-export declare const Other = 0;\n","impliedFormat":1}],"root":[2],"options":{"composite":true,"outDir":"./"},"latestChangedDtsFile":"./other.d.ts","version":"FakeTSVersion"}
+
+//// [/src/dist/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "fileNames": [
+    "../../lib/lib.d.ts",
+    "../src/other/other.ts"
+  ],
+  "fileInfos": {
+    "../../lib/lib.d.ts": {
+      "original": {
+        "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+        "affectsGlobalScope": true,
+        "impliedFormat": 1
+      },
+      "version": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+      "signature": "3858781397-/// <reference no-default-lib=\"true\"/>\ninterface Boolean {}\ninterface Function {}\ninterface CallableFunction {}\ninterface NewableFunction {}\ninterface IArguments {}\ninterface Number { toExponential: any; }\ninterface Object {}\ninterface RegExp {}\ninterface String { charAt: any; }\ninterface Array<T> { length: number; [n: number]: T; }\ninterface ReadonlyArray<T> {}\ndeclare const console: { log(msg: any): void; };",
+      "affectsGlobalScope": true,
+      "impliedFormat": "commonjs"
+    },
+    "../src/other/other.ts": {
+      "original": {
+        "version": "-4254247902-export const Other = 0;\n",
+        "signature": "-10003600206-export declare const Other = 0;\n",
+        "impliedFormat": 1
+      },
+      "version": "-4254247902-export const Other = 0;\n",
+      "signature": "-10003600206-export declare const Other = 0;\n",
+      "impliedFormat": "commonjs"
+    }
+  },
+  "root": [
+    [
+      2,
+      "../src/other/other.ts"
+    ]
+  ],
+  "options": {
+    "composite": true,
+    "outDir": "./"
+  },
+  "latestChangedDtsFile": "./other.d.ts",
+  "version": "FakeTSVersion",
+  "size": 820
+}
+

tests/baselines/reference/tsbuild/publicAPI/build-with-custom-transformers.js

@@ -83,6 +83,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/shared/tsconfig.json"
 }
 Program structureReused: Not
@@ -103,6 +104,7 @@ Program root files: [
 ]
 Program options: {
   "composite": true,
+  "tscBuild": true,
   "configFilePath": "/src/webpack/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuild/resolveJsonModule/files-containing-json-file-non-composite.js

@@ -49,12 +49,13 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
 TSFILE: /src/dist/hello.json
 TSFILE: /src/dist/index.js
+TSFILE: /src/dist/tsconfig.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/src/hello.json
@@ -81,3 +82,12 @@ var hello_json_1 = __importDefault(require("./hello.json"));
 exports.default = hello_json_1.default.hello;
 
 
+//// [/src/dist/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/dist/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/resolveJsonModule/include-and-files-non-composite.js

@@ -51,12 +51,13 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/hello.json' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
 TSFILE: /src/dist/hello.json
 TSFILE: /src/dist/index.js
+TSFILE: /src/dist/tsconfig.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/src/hello.json
@@ -83,3 +84,12 @@ var hello_json_1 = __importDefault(require("./hello.json"));
 exports.default = hello_json_1.default.hello;
 
 
+//// [/src/dist/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/dist/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/resolveJsonModule/include-of-json-along-with-other-include-and-file-name-matches-ts-file-non-composite.js

@@ -49,12 +49,13 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
 TSFILE: /src/dist/index.json
 TSFILE: /src/dist/index.js
+TSFILE: /src/dist/tsconfig.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/src/index.json
@@ -81,3 +82,12 @@ exports.default = index_json_1.default.hello;
 }
 
 
+//// [/src/dist/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/dist/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/resolveJsonModule/include-of-json-along-with-other-include-non-composite.js

@@ -49,12 +49,13 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
 TSFILE: /src/dist/hello.json
 TSFILE: /src/dist/index.js
+TSFILE: /src/dist/tsconfig.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/src/hello.json
@@ -81,3 +82,12 @@ var hello_json_1 = __importDefault(require("./hello.json"));
 exports.default = hello_json_1.default.hello;
 
 
+//// [/src/dist/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/dist/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/resolveJsonModule/include-only-non-composite.js

@@ -48,12 +48,13 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
 TSFILE: /src/dist/hello.json
 TSFILE: /src/dist/index.js
+TSFILE: /src/dist/tsconfig.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/src/hello.json
@@ -79,3 +80,12 @@ var hello_json_1 = __importDefault(require("./hello.json"));
 exports.default = hello_json_1.default.hello;
 
 
+//// [/src/dist/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/dist/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/resolveJsonModule/include-only-with-json-not-in-rootDir-non-composite.js

@@ -49,11 +49,12 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
 TSFILE: /src/dist/index.js
+TSFILE: /src/tsconfig.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/hello.json
@@ -73,3 +74,12 @@ var hello_json_1 = __importDefault(require("../hello.json"));
 exports.default = hello_json_1.default.hello;
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/resolveJsonModule/include-only-with-json-without-rootDir-but-outside-configDirectory-non-composite.js

@@ -48,12 +48,13 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
 TSFILE: /src/dist/hello.json
 TSFILE: /src/dist/src/src/index.js
+TSFILE: /src/dist/tsconfig.tsbuildinfo
 [HH:MM:SS AM] Updating unchanged output timestamps of project '/src/tsconfig.json'...
 
 lib/lib.d.ts
@@ -81,3 +82,12 @@ var hello_json_1 = __importDefault(require("../../hello.json"));
 exports.default = hello_json_1.default.hello;
 
 
+//// [/src/dist/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/dist/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/resolveJsonModule/include-only-without-outDir-non-composite.js

@@ -47,11 +47,12 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/src/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
 TSFILE: /src/src/index.js
+TSFILE: /src/tsconfig.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/src/hello.json
@@ -71,3 +72,12 @@ var hello_json_1 = __importDefault(require("./hello.json"));
 exports.default = hello_json_1.default.hello;
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/resolveJsonModule/sourcemap-non-composite.js

@@ -50,13 +50,14 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/dist/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
 TSFILE: /src/dist/hello.json
 TSFILE: /src/dist/index.js.map
 TSFILE: /src/dist/index.js
+TSFILE: /src/dist/tsconfig.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/src/hello.json
@@ -86,6 +87,15 @@ exports.default = hello_json_1.default.hello;
 //// [/src/dist/index.js.map]
 {"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";;;;;AAAA,4DAAgC;AAChC,kBAAe,oBAAK,CAAC,KAAK,CAAA"}
 
+//// [/src/dist/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/dist/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/resolveJsonModule/without-outDir-non-composite.js

@@ -48,11 +48,12 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * src/tsconfig.json
 
-[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/src/index.js' does not exist
+[HH:MM:SS AM] Project 'src/tsconfig.json' is out of date because output file 'src/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/src/tsconfig.json'...
 
 TSFILE: /src/src/index.js
+TSFILE: /src/tsconfig.tsbuildinfo
 lib/lib.d.ts
   Default library for target 'es5'
 src/src/hello.json
@@ -73,6 +74,15 @@ var hello_json_1 = __importDefault(require("./hello.json"));
 exports.default = hello_json_1.default.hello;
 
 
+//// [/src/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/src/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+
 
 
 Change:: no-change-run

tests/baselines/reference/tsbuild/sample1/builds-correctly-when-project-is-not-composite-or-doesnt-have-any-references.js

@@ -101,7 +101,7 @@ Output::
 [HH:MM:SS AM] Projects in this build: 
     * core/tsconfig.json
 
-[HH:MM:SS AM] Project 'core/tsconfig.json' is out of date because output file 'core/anotherModule.js' does not exist
+[HH:MM:SS AM] Project 'core/tsconfig.json' is out of date because output file 'core/tsconfig.tsbuildinfo' does not exist
 
 [HH:MM:SS AM] Building project '/user/username/projects/sample1/core/tsconfig.json'...
 
@@ -142,3 +142,12 @@ function leftPad(s, n) { return s + n; }
 function multiply(a, b) { return a * b; }
 
 
+//// [/user/username/projects/sample1/core/tsconfig.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/sample1/core/tsconfig.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/transitiveReferences/builds-correctly-when-the-referenced-project-uses-different-module-resolution.js

@@ -249,3 +249,12 @@ a_1.X;
   "size": 964
 }
 
+//// [/user/username/projects/transitiveReferences/tsconfig.c.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/transitiveReferences/tsconfig.c.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuild/transitiveReferences/builds-correctly.js

@@ -255,3 +255,12 @@ a_1.X;
   "size": 976
 }
 
+//// [/user/username/projects/transitiveReferences/tsconfig.c.tsbuildinfo]
+{"version":"FakeTSVersion"}
+
+//// [/user/username/projects/transitiveReferences/tsconfig.c.tsbuildinfo.readable.baseline.txt]
+{
+  "version": "FakeTSVersion",
+  "size": 27
+}
+

tests/baselines/reference/tsbuildWatch/configFileErrors/multiFile/reports-syntax-errors-in-config-file.js

@@ -140,6 +140,7 @@ Program root files: [
 Program options: {
   "composite": true,
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/tsconfig.json"
 }
 Program structureReused: Not
@@ -201,6 +202,7 @@ Program options: {
   "composite": true,
   "declaration": true,
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/tsconfig.json"
 }
 Program structureReused: Not
@@ -317,6 +319,7 @@ Program options: {
   "composite": true,
   "declaration": true,
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/tsconfig.json"
 }
 Program structureReused: Not
@@ -367,6 +370,7 @@ Program options: {
   "composite": true,
   "declaration": true,
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/tsconfig.json"
 }
 Program structureReused: Not
@@ -507,6 +511,7 @@ Program options: {
   "composite": true,
   "declaration": true,
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuildWatch/configFileErrors/outFile/reports-syntax-errors-in-config-file.js

@@ -142,6 +142,7 @@ Program options: {
   "outFile": "/user/username/projects/outFile.js",
   "module": 2,
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/tsconfig.json"
 }
 Program structureReused: Not
@@ -208,6 +209,7 @@ Program options: {
   "outFile": "/user/username/projects/outFile.js",
   "module": 2,
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/tsconfig.json"
 }
 Program structureReused: Not
@@ -323,6 +325,7 @@ Program options: {
   "outFile": "/user/username/projects/outFile.js",
   "module": 2,
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/tsconfig.json"
 }
 Program structureReused: Not
@@ -375,6 +378,7 @@ Program options: {
   "outFile": "/user/username/projects/outFile.js",
   "module": 2,
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/tsconfig.json"
 }
 Program structureReused: Not
@@ -517,6 +521,7 @@ Program options: {
   "outFile": "/user/username/projects/outFile.js",
   "module": 2,
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/myproject/tsconfig.json"
 }
 Program structureReused: Not

tests/baselines/reference/tsbuildWatch/demo/updates-with-bad-reference.js

@@ -435,6 +435,7 @@ Program options: {
   "outDir": "/user/username/projects/demo/lib/core",
   "rootDir": "/user/username/projects/demo/core",
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/demo/core/tsconfig.json"
 }
 Program structureReused: Not
@@ -719,6 +720,7 @@ Program options: {
   "outDir": "/user/username/projects/demo/lib/core",
   "rootDir": "/user/username/projects/demo/core",
   "watch": true,
+  "tscBuild": true,
   "configFilePath": "/user/username/projects/demo/core/tsconfig.json"
 }
 Program structureReused: Not