Merge pull request #157 from CognitiveDisson/addUploadRetryDelay

Add a delay between network request retries

.swiftlint.yml

@@ -64,6 +64,7 @@ excluded:
   - fastlane/
   - DerivedData/
   - e2eTests/XCRemoteCacheSample/Pods
+  - e2eTests/StandaloneSampleApp
 
 attributes:
   always_on_same_line:

Package.swift

@@ -51,10 +51,14 @@ let package = Package(
             name: "xcld",
             dependencies: ["XCRemoteCache"]
         ),
+        .target(
+            name: "xcldplusplus",
+            dependencies: ["XCRemoteCache"]
+        ),
         .target(
             // Wrapper target that builds all binaries but does nothing in runtime
             name: "Aggregator",
-            dependencies: ["xcprebuild", "xcswiftc", "xclibtool", "xcpostbuild", "xcprepare", "xcld"]
+            dependencies: ["xcprebuild", "xcswiftc", "xclibtool", "xcpostbuild", "xcprepare", "xcld", "xcldplusplus"]
         ),
         .testTarget(
             name: "XCRemoteCacheTests",

README.md

@@ -196,7 +196,9 @@ Configure Xcode targets that **should use** XCRemoteCache:
 * `SWIFT_EXEC` - location of `xcprepare` (e.g. `xcremotecache/xcswiftc`)
 * `LIBTOOL` - location of `xclibtool` (e.g. `xcremotecache/xclibtool`)
 * `LD` - location of `xcld` (e.g. `xcremotecache/xcld`)
+* `LDPLUSPLUS` - location of `xcldplusplus` (e.g. `xcremotecache/xcldplusplus`)
 * `XCRC_PLATFORM_PREFERRED_ARCH` - `$(LINK_FILE_LIST_$(CURRENT_VARIANT)_$(PLATFORM_PREFERRED_ARCH):dir:standardizepath:file:default=arm64)`
+* `SWIFT_USE_INTEGRATED_DRIVER` - `NO` (required in Xcode 14.0+)
 
 <details>
   <summary>Screenshot</summary>
@@ -265,7 +267,7 @@ $ xcremotecache/xcprepare mark --configuration Debug --platform iphonesimulator
 
 That command creates an empty file on a remote server which informs that for given sha, configuration, platform, Xcode versions etc. all artifacts are available.
 
-_Note that for the `producer` mode, the prebuild build phase and `xccc`, `xcld`, `xclibtool` wrappers become no-op, so it is recommended to not add them for the `producer` mode._
+_Note that for the `producer` mode, the prebuild build phase and `xccc`, `xcld`, `xcldplusplus`, `xclibtool` wrappers become no-op, so it is recommended to not add them for the `producer` mode._
 
 ## A full list of configuration parameters:
 
@@ -296,6 +298,7 @@ _Note that for the `producer` mode, the prebuild build phase and `xccc`, `xcld`,
 | `stats_dir` | Directory where all XCRemoteCache statistics (e.g. counters) are stored | `~/.xccache` | ⬜️ |
 | `download_retries` | Number of retries for download requests | `0` | ⬜️ |
 | `upload_retries` | Number of retries for upload requests | `3` | ⬜️ |
+| `retry_delay` | Delay between retries in seconds | `10` | ⬜️ |
 | `request_custom_headers` | Dictionary of extra HTTP headers for all remote server requests | `[]` | ⬜️ |
 | `thin_target_mock_filename` | Filename (without an extension) of the compilation input file that is used as a fake compilation for the forced-cached target (aka thin target) | `standin` | ⬜️ |
 | `focused_targets` | A list of all targets that are not thinned. If empty, all targets are meant to be non-thin | `[]` | ⬜️ |
@@ -416,6 +419,7 @@ Note: This setup is not recommended and may not be supported in future XCRemoteC
 * Swift Package Manager (SPM) dependencies are not supported. _Because SPM does not allow customizing Build Settings, XCRemoteCache cannot specify `clang` and `swiftc` wrappers that control if the local compilation should be skipped (cache hit) or not (cache miss)_
 * Filenames with `_vers.c` suffix are reserved and cannot be used as a source file
 * All compilation files should be referenced via the git repo root. Referencing `/AbsolutePath/someOther.swift` or `../../someOther.swift` that resolve to the location outside of the git repo root is prohibited.
+* The new Swift driver (introduced by default in Xcode 14.0) is not supported and has to be disabled when using XCRemoteCache
 
 ## FAQ
 

Rakefile

@@ -10,7 +10,7 @@ DERIVED_DATA_DIR = File.join('.build').freeze
 RELEASES_ROOT_DIR = File.join('releases').freeze
 
 EXECUTABLE_NAME = 'XCRemoteCache'
-EXECUTABLE_NAMES = ['xclibtool', 'xcpostbuild', 'xcprebuild', 'xcprepare', 'xcswiftc', 'xcld'] 
+EXECUTABLE_NAMES = ['xclibtool', 'xcpostbuild', 'xcprebuild', 'xcprepare', 'xcswiftc', 'xcld', 'xcldplusplus'] 
 PROJECT_NAME = 'XCRemoteCache'
 
 SWIFTLINT_ENABLED = true

Sources/XCRemoteCache/Commands/Postbuild/XCPostbuild.swift

@@ -123,6 +123,7 @@ public class XCPostbuild {
             let networkClient = NetworkClientImpl(
                 session: sessionFactory.build(),
                 retries: config.uploadRetries,
+                retryDelay: config.retryDelay,
                 fileManager: fileManager,
                 awsV4Signature: awsV4Signature
             )

Sources/XCRemoteCache/Commands/Prebuild/XCPrebuild.swift

@@ -78,6 +78,10 @@ public class XCPrebuild {
             exit(0)
         }
 
+        let compilationHistoryOrganizer = CompilationHistoryFileOrganizer(
+            context.compilationHistoryFile,
+            fileManager: fileManager
+        )
         do {
             let envFingerprint = try EnvironmentFingerprintGenerator(
                 configuration: config,
@@ -105,6 +109,7 @@ public class XCPrebuild {
             let networkClient = NetworkClientImpl(
                 session: sessionFactory.build(),
                 retries: config.downloadRetries,
+                retryDelay: config.retryDelay,
                 fileManager: fileManager,
                 awsV4Signature: awsV4Signature
             )
@@ -148,10 +153,6 @@ public class XCPrebuild {
                 algorithm: MD5Algorithm()
             )
             let organizer = ZipArtifactOrganizer(targetTempDir: context.targetTempDir, fileManager: fileManager)
-            let compilationHistoryOrganizer = CompilationHistoryFileOrganizer(
-                context.compilationHistoryFile,
-                fileManager: fileManager
-            )
             let metaReader = JsonMetaReader(fileAccessor: fileManager)
             var consumerPlugins: [ArtifactConsumerPrebuildPlugin] = []
 
@@ -189,7 +190,6 @@ public class XCPrebuild {
             case .compatible(localDependencies: let dependencies):
                 // TODO: pass `allowedInputFiles` observed in the build time
                 try modeController.enable(allowedInputFiles: dependencies, dependencies: dependencies)
-                compilationHistoryOrganizer.reset()
             }
         } catch {
             disableRemoteCache(
@@ -197,6 +197,7 @@ public class XCPrebuild {
                 errorMessage: "Prebuild step failed with error: \(error)"
             )
         }
+        compilationHistoryOrganizer.reset()
     }
 
     private func disableRemoteCache(modeController: PhaseCacheModeController, errorMessage: String?) {

Sources/XCRemoteCache/Commands/Prepare/Integrate/BuildSettingsIntegrateAppender.swift

@@ -44,6 +44,7 @@ class XcodeProjBuildSettingsIntegrateAppender: BuildSettingsIntegrateAppender {
     func appendToBuildSettings(buildSettings: BuildSettings, wrappers: XCRCBinariesPaths) -> BuildSettings {
         var result = buildSettings
         result["SWIFT_EXEC"] = wrappers.swiftc.path
+        result["SWIFT_USE_INTEGRATED_DRIVER"] = "NO"
         // When generating artifacts, no need to shell-out all compilation commands to our wrappers
         if case .consumer = mode {
             result["CC"] = wrappers.cc.path

Sources/XCRemoteCache/Commands/Prepare/Integrate/IntegrateContext.swift

@@ -53,6 +53,7 @@ extension IntegrateContext {
             swiftc: binariesDir.appendingPathComponent("xcswiftc"),
             libtool: binariesDir.appendingPathComponent("xclibtool"),
             ld: binariesDir.appendingPathComponent("xcld"),
+            ldplusplus: binariesDir.appendingPathComponent("xcldplusplus"),
             prebuild: binariesDir.appendingPathComponent("xcprebuild"),
             postbuild: binariesDir.appendingPathComponent("xcpostbuild")
         )

Sources/XCRemoteCache/Commands/Prepare/Integrate/XCRCBinariesPaths.swift

@@ -26,6 +26,7 @@ struct XCRCBinariesPaths {
     let swiftc: URL
     let libtool: URL
     let ld: URL
+    let ldplusplus: URL
     let prebuild: URL
     let postbuild: URL
 }

Sources/XCRemoteCache/Commands/Prepare/Integrate/XcodeProjIntegrate.swift

@@ -230,10 +230,12 @@ struct XcodeProjIntegrate: Integrate {
         if let sourceIndex = target.buildPhases.map(\.buildPhase).firstIndex(of: .sources) {
             // add (pre|post)build phases only when a target has some compilation steps
             // otherwise they make no sense (nothing to store in an artifact)
+            // add postbuild right after compilation as custom build steps may depend on files generated by
+            // the xcpostbuild (e.g. to copy -Swift.h.md5)
+            pbxproj.add(object: postbuildPhase)
+            target.buildPhases.insert(postbuildPhase, at: sourceIndex + 1)
             pbxproj.add(object: prebuildPhase)
             target.buildPhases.insert(prebuildPhase, at: sourceIndex)
-            pbxproj.add(object: postbuildPhase)
-            target.buildPhases.append(postbuildPhase)
         }
     }
 

Sources/XCRemoteCache/Commands/Prepare/XCPrepare.swift

@@ -87,6 +87,7 @@ public class XCPrepare {
             let networkClient = NetworkClientImpl(
                 session: sessionFactory.build(),
                 retries: config.downloadRetries,
+                retryDelay: config.retryDelay,
                 fileManager: fileManager,
                 awsV4Signature: awsV4Signature
             )

Sources/XCRemoteCache/Commands/Prepare/XCPrepareMark.swift

@@ -69,6 +69,7 @@ public class XCPrepareMark {
             let networkClient = NetworkClientImpl(
                 session: sessionFactory.build(),
                 retries: config.uploadRetries,
+                retryDelay: config.retryDelay,
                 fileManager: fileManager,
                 awsV4Signature: awsV4Signature
             )

Sources/XCRemoteCache/Config/XCRemoteCacheConfig.swift

@@ -83,6 +83,8 @@ public struct XCRemoteCacheConfig: Encodable {
     var downloadRetries: Int = 0
     /// Number of retries for upload requests
     var uploadRetries: Int = 3
+    /// Delay between retries in seconds
+    var retryDelay: Double = 10.0
     /// Extra headers appended to all remote HTTP(S) requests
     var requestCustomHeaders: [String: String] = [:]
     /// Filename (without an extension) of the compilation input file that is used
@@ -175,6 +177,7 @@ extension XCRemoteCacheConfig {
         merge.statsDir = scheme.statsDir ?? statsDir
         merge.downloadRetries = scheme.downloadRetries ?? downloadRetries
         merge.uploadRetries = scheme.uploadRetries ?? uploadRetries
+        merge.retryDelay = scheme.retryDelay ?? retryDelay
         merge.requestCustomHeaders = scheme.requestCustomHeaders ?? requestCustomHeaders
         merge.thinTargetMockFilename = scheme.thinTargetMockFilename ?? thinTargetMockFilename
         merge.focusedTargets = scheme.focusedTargets ?? focusedTargets
@@ -243,6 +246,7 @@ struct ConfigFileScheme: Decodable {
     let statsDir: String?
     let downloadRetries: Int?
     let uploadRetries: Int?
+    let retryDelay: Double?
     let requestCustomHeaders: [String: String]?
     let thinTargetMockFilename: String?
     let focusedTargets: [String]?
@@ -291,6 +295,7 @@ struct ConfigFileScheme: Decodable {
         case statsDir = "stats_dir"
         case downloadRetries = "download_retries"
         case uploadRetries = "upload_retries"
+        case retryDelay = "retry_delay"
         case requestCustomHeaders = "request_custom_headers"
         case thinTargetMockFilename = "thin_target_mock_filename"
         case focusedTargets = "focused_targets"
@@ -357,6 +362,7 @@ class XCRemoteCacheConfigReader {
                 extraConfURL = URL(fileURLWithPath: config.extraConfigurationFile, relativeTo: rootURL)
             } catch {
                 infoLog("Extra config override failed with \(error). Skipping extra configuration")
+                // swiftlint:disable:next unneeded_break_in_switch
                 break
             }
         }

Sources/XCRemoteCache/Dependencies/DependenciesReader.swift

@@ -51,34 +51,22 @@ public class FileDependenciesReader: DependenciesReader {
     public func findDependencies() throws -> [String] {
         let yaml = try readRaw()
 
-        struct ParseState {
-            var buffer: String = ""
-            var prevChar: Character?
-            var result: [String] = []
-            func with(buffer: String? = nil, prevChar: Character? = nil, result: [String]? = nil) -> ParseState {
-                var new = self
-                new.buffer = buffer ?? new.buffer
-                new.prevChar = prevChar ?? new.prevChar
-                new.result = result ?? new.result
-                return new
-            }
-        }
-
         let dependencies = yaml.reduce(Set<String>()) { prev, arg1 -> Set<String> in
             let (key, value) = arg1
             switch key {
             case "dependencies":
                 // 'clang' output formatting
-                return Set(splitDependencyFileList(value))
+                return Set(parseDependencyFileList(value))
             case let s where s.hasSuffix(".o") || s.hasSuffix(".bc"):
                 // 'swiftc' output formatting
                 // take dependencies from any .o or .bc file
                 // Note: For WMO, all .{o|bc} files have the same dependencies
-                return Set(splitDependencyFileList(value))
+                return Set(parseDependencyFileList(value))
             default:
                 return prev
             }
         }
+
         return Array(dependencies)
     }
 
@@ -92,56 +80,92 @@ public class FileDependenciesReader: DependenciesReader {
         return yaml.mapValues { $0.components(separatedBy: .whitespaces) }
     }
 
-    private func readRaw() throws -> [String: String] {
+    func readRaw() throws -> [String: String] {
+        let fileData = try getFileData()
+        let fileString = try getFileStringFromData(fileData: fileData)
+        let yaml = try getYaml(fileString: fileString)
+        return yaml
+    }
+
+    func getFileData() throws -> Data {
         guard let fileData = fileManager.contents(atPath: file.path) else {
             throw DependenciesReaderError.readingError
         }
+        return fileData
+    }
+
+    func getFileStringFromData(fileData: Data) throws -> String {
         guard let fileString = String(data: fileData, encoding: .utf8) else {
             throw DependenciesReaderError.invalidFile
         }
-        // .d matches the .yaml format
+        return fileString
+    }
+
+    func getYaml(fileString: String) throws -> [String: String] {
         guard let yaml = try Yams.load(yaml: fileString) as? [String: String] else {
             throw DependenciesReaderError.invalidFile
         }
         return yaml
     }
 
-    /// Splits space or new line separated files into a set of files
+    /// Parses the String to get the list of files
+    /// It iterates over the String using its UTF8View since it is more performant (String type operates
+    /// in a higher abstraction level and supports features that have a negative impact in the performance)
     /// It supports escaping whitespace charaters, prefixed with "\\"
     /// - Parameter string: string of whitespace charaters separated file paths
     /// - Returns: Array of all file paths
-    private func splitDependencyFileList(_ string: String) -> [String] {
-        struct ParseState {
-            var buffer: String = ""
-            var prevChar: Character?
-            var result: [String] = []
-            func with(buffer: String? = nil, prevChar: Character? = nil, result: [String]? = nil) -> ParseState {
-                var new = self
-                new.buffer = buffer ?? new.buffer
-                new.prevChar = prevChar ?? new.prevChar
-                new.result = result ?? new.result
-                return new
-            }
+    func parseDependencyFileList(_ string: String) -> [String] {
+        var result: [String] = []
+        var prevChar: UTF8.CodeUnit?
+
+        // These index are used to move over the UTF8View of the string
+        // The goal is to optimize the memory used, since UTF8View uses
+        // the same memory as the original String without copying it
+        var startIndex = string.utf8.startIndex
+        var endIndex = startIndex
+
+        // This buffer is only used to save the part of the path that has been already parsed when finding a backslash
+        var buffer: String = ""
+
+        for c in string.utf8 {
+          switch c {
+          case UTF8.CodeUnit(ascii: "\n") where prevChar == UTF8.CodeUnit(ascii: "\\"):
+              startIndex = string.utf8.index(after: startIndex)
+              endIndex = startIndex
+          case UTF8.CodeUnit(ascii: " ") where startIndex == endIndex && buffer.isEmpty:
+              startIndex = string.utf8.index(after: startIndex)
+              endIndex = startIndex
+          case UTF8.CodeUnit(ascii: " ") where prevChar != UTF8.CodeUnit(ascii: "\\"):
+              // If a space is found and it is not escaped, then that's the end of the file path
+              buffer += String(Substring(string.utf8[startIndex ..< endIndex]))
+              result.append(buffer)
+              buffer = ""
+              prevChar = nil
+              startIndex = string.utf8.index(after: endIndex)
+              endIndex = startIndex
+          case UTF8.CodeUnit(ascii: "\\"):
+              // If a backslash is found it is not included in the file path
+              // The current parsed range of the UTF8View is saved in the buffer as a String
+              buffer += String(Substring(string.utf8[startIndex ..< endIndex]))
+              // The backslash is assigned as the previous char
+              prevChar = c
+              // The indexes are moved to the next char so we continue parsing the String
+              startIndex = string.utf8.index(after: endIndex)
+              endIndex = startIndex
+          default:
+              // As long as it is possible the indexes are used to track the range of the string that
+              // will be included in the file path (until it ends or until a backslash is found)
+              endIndex = string.utf8.index(after: endIndex)
+              // The char is assigned as the previous char
+              prevChar = c
+          }
         }
-        let parseResult = string.reduce(ParseState()) { total, char in
-            switch char {
-            case "\n" where total.prevChar == "\\":
-                return total
-            case " " where total.buffer.isEmpty:
-                return total
-            case " " where total.prevChar == "\\":
-                return total.with(buffer: "\(total.buffer) ")
-            case " ":
-                return total.with(buffer: "", prevChar: nil, result: total.result + [total.buffer])
-            case "\\":
-                return total.with(prevChar: "\\")
-            default:
-                return total.with(buffer: "\(total.buffer)\(char)", prevChar: char, result: total.result)
-            }
+
+        if startIndex != endIndex {
+            buffer += String(Substring(string.utf8[startIndex ..< endIndex]))
+            result.append(buffer)
         }
-        if !parseResult.buffer.isEmpty {
-            return parseResult.result + [parseResult.buffer]
-        }
-        return parseResult.result
+
+        return result
     }
 }

Sources/XCRemoteCache/Dependencies/DependenciesWriter.swift

@@ -50,7 +50,7 @@ public class FileDependenciesWriter: DependenciesWriter {
         var content = ""
         for (file, deps) in dependencies {
             content.append(file + ": ")
-            content.append(deps.joined(separator: " "))
+            content.append(deps.map { $0.replacingOccurrences(of: " ", with: "\\ ") }.joined(separator: " "))
             content.append("\n")
         }
         try content.write(to: file, atomically: true, encoding: .utf8)

Sources/XCRemoteCache/Fingerprint/EnvironmentFingerprint.swift

@@ -52,7 +52,9 @@ class EnvironmentFingerprintGenerator {
         }
         try fill(envKeys: Self.defaultEnvFingerprintKeys + customFingerprintEnvs)
         try generator.append(version)
-        return try generator.generate()
+        let result = try generator.generate()
+        generatedFingerprint = result
+        return result
     }
 
     /// Creates a fingerprint of the environemtn, by hashing all ENVs specified in keys

Sources/XCRemoteCache/Network/NetworkClientImpl.swift

@@ -29,12 +29,14 @@ class NetworkClientImpl: NetworkClient {
     private let session: URLSession
     private let fileManager: FileManager
     private let maxRetries: Int
+    private let retryDelay: TimeInterval
     private let awsV4Signature: AWSV4Signature?
 
-    init(session: URLSession, retries: Int, fileManager: FileManager, awsV4Signature: AWSV4Signature?) {
+    init(session: URLSession, retries: Int, retryDelay: TimeInterval, fileManager: FileManager, awsV4Signature: AWSV4Signature?) {
         self.session = session
         self.fileManager = fileManager
-        maxRetries = retries
+        self.maxRetries = retries
+        self.retryDelay = retryDelay
         self.awsV4Signature = awsV4Signature
     }
 
@@ -173,7 +175,13 @@ class NetworkClientImpl: NetworkClient {
             if let error = responseError {
                 if retries > 0 {
                     infoLog("Upload request failed with \(error). Left retries: \(retries).")
-                    self.makeUploadRequest(request, input: input, retries: retries - 1, completion: completion)
+                    self.retryUpload(
+                        request,
+                        input: input,
+                        retries: retries,
+                        completion: completion,
+                        after: self.retryDelay
+                    )
                     return
                 }
                 errorLog("Upload request failed: \(error)")
@@ -184,6 +192,13 @@ class NetworkClientImpl: NetworkClient {
         }
         dataTask.resume()
     }
+
+    private func retryUpload(_ request: URLRequest, input: URL, retries: Int, completion: @escaping (Result<Void, NetworkClientError>) -> Void, after: TimeInterval) {
+        DispatchQueue.global().asyncAfter(deadline: .now() + after) { [weak self] in
+            guard let self = self else { return }
+            self.makeUploadRequest(request, input: input, retries: retries - 1, completion: completion)
+        }
+    }
 }
 
 private extension NetworkClientError {

Sources/xcld/XCLDMain.swift

@@ -21,7 +21,7 @@ import Foundation
 import XCRemoteCache
 
 /// Wrapper for a `LD` program that copies the dynamic executable from a cached-downloaded location
-/// Fallbacks to a standard `clang` when the Ramote cache is not applicable (e.g. modified sources)
+/// Fallbacks to a standard `clang` when the Remote cache is not applicable (e.g. modified sources)
 public class XCLDMain {
     public func main() {
         let args = ProcessInfo().arguments

Sources/xcldplusplus/XCLDPlusPlus.swift

@@ -0,0 +1,75 @@
+// Copyright (c) 2021 Spotify AB.
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+import Foundation
+import XCRemoteCache
+
+/// Wrapper for a `LDPLUSPLUS` program that copies the dynamic executable from a cached-downloaded location
+/// Fallbacks to a standard `clang++` when the Remote cache is not applicable (e.g. modified sources)
+public class XCLDPlusPlusMain {
+    public func main() {
+        let args = ProcessInfo().arguments
+        var output: String?
+        var filelist: String?
+        var dependencyInfo: String?
+        var i = 0
+        while i < args.count {
+            switch args[i] {
+            case "-o":
+                output = args[i + 1]
+                i += 1
+            case "-filelist":
+                filelist = args[i + 1]
+                i += 1
+            case "-dependency_info":
+                // Skip following `-Xlinker` argument. Sample call:
+                // `clang -dynamiclib  ... -Xlinker -dependency_info -Xlinker /path/Target_dependency_info.dat`
+                dependencyInfo = args[i + 2]
+                i += 2
+            default:
+                break
+            }
+            i += 1
+        }
+        guard let outputInput = output, let filelistInput = filelist, let dependencyInfoInput = dependencyInfo else {
+            let ldCommand = "clang++"
+            print("Fallbacking to compilation using \(ldCommand).")
+
+            let args = ProcessInfo().arguments
+            let paramList = [ldCommand] + args.dropFirst()
+            let cargs = paramList.map { strdup($0) } + [nil]
+            execvp(ldCommand, cargs)
+
+            /// C-function `execv` returns only when the command fails
+            exit(1)
+        }
+
+
+        // TODO: consider using `clang_command` from .rcinfo
+        /// concrete clang path should be taken from the current toolchain
+        let fallbackCommand = "clang++"
+        XCCreateBinary(
+            output: outputInput,
+            filelist: filelistInput,
+            dependencyInfo: dependencyInfoInput,
+            fallbackCommand: fallbackCommand,
+            stepDescription: "xcldplusplus"
+        ).run()
+    }
+}

Sources/xcldplusplus/main.swift

@@ -0,0 +1,22 @@
+// Copyright (c) 2021 Spotify AB.
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+import XCRemoteCache
+
+XCLDPlusPlusMain().main()

Tests/XCRemoteCacheTests/Commands/Prepare/Integrate/XcodeProjBuildSettingsIntegrateAppenderTests.swift

@@ -35,6 +35,7 @@ class XcodeProjBuildSettingsIntegrateAppenderTests: XCTestCase {
             swiftc: binariesDir.appendingPathComponent("xcswiftc"),
             libtool: binariesDir.appendingPathComponent("xclibtool"),
             ld: binariesDir.appendingPathComponent("xcld"),
+            ldplusplus: binariesDir.appendingPathComponent("xcldplusplus"),
             prebuild: binariesDir.appendingPathComponent("xcprebuild"),
             postbuild: binariesDir.appendingPathComponent("xcpostbuild")
         )

Tests/XCRemoteCacheTests/Dependencies/DependenciesReaderPerformanceTest.swift

@@ -0,0 +1,139 @@
+// Copyright (c) 2021 Spotify AB.
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+@testable import XCRemoteCache
+
+import XCTest
+
+class DependenciesReaderPerformanceTest: XCTestCase {
+
+    private static let resourcesSubdirectory = "TestData/Dependencies/DependenciesReaderPerformanceTest"
+
+    private func pathForTestData(name: String) throws -> URL {
+        return try XCTUnwrap(Bundle.module.url(
+            forResource: name,
+            withExtension: "d",
+            subdirectory: DependenciesReaderPerformanceTest.resourcesSubdirectory
+        ))
+    }
+
+    func testFindDependenciesPerformance() throws {
+        let file = try pathForTestData(name: "dependencies")
+        let reader = FileDependenciesReader(file, accessor: FileManager.default)
+
+        self.measure { // 0.005
+            do {
+                _ = try reader.findDependencies()
+            } catch {
+                print("Error reading dependencies")
+            }
+        }
+    }
+
+    func testReadRawFilePerformance() throws {
+        let file = try pathForTestData(name: "dependencies")
+        let reader = FileDependenciesReader(file, accessor: FileManager.default)
+
+        self.measure { // 0.002
+            do {
+                _ = try reader.readRaw()
+            } catch {
+                print("Error reading dependencies")
+            }
+        }
+    }
+
+    func testGetFileDataPerformance() throws {
+        let file = try pathForTestData(name: "dependencies")
+        let reader = FileDependenciesReader(file, accessor: FileManager.default)
+
+        self.measure { // 0.00008
+            do {
+                _ = try reader.getFileData()
+            } catch {
+                print("Error reading dependencies")
+            }
+        }
+    }
+
+    func testGetFileStringPerformance() throws {
+        let file = try pathForTestData(name: "dependencies")
+        let reader = FileDependenciesReader(file, accessor: FileManager.default)
+        let fileData = try reader.getFileData()
+
+        self.measure { // 0.00002
+            do {
+                _ = try reader.getFileStringFromData(fileData: fileData)
+            } catch {
+                print("Error reading dependencies")
+            }
+        }
+    }
+
+    func testGetYamlPerformance() throws { // 0.222
+        let file = try pathForTestData(name: "dependencies")
+        let reader = FileDependenciesReader(file, accessor: FileManager.default)
+        let fileData = try reader.getFileData()
+        let fileString = try reader.getFileStringFromData(fileData: fileData)
+
+        self.measure { // 0.0022
+            do {
+                _ = try reader.getYaml(fileString: fileString)
+            } catch {
+                print("Error reading dependencies")
+            }
+        }
+    }
+
+    func testParseDependencyFileListUsingUTF8View() throws {
+        let file = try pathForTestData(name: "dependencies")
+        let reader = FileDependenciesReader(file, accessor: FileManager.default)
+        let fileData = try reader.getFileData()
+        let fileString = try reader.getFileStringFromData(fileData: fileData)
+        let yaml = try reader.getYaml(fileString: fileString)
+
+        guard let dependencies = yaml["dependencies"] else {
+            XCTAssertTrue(false)
+            return
+        }
+
+        self.measure { // 0.004
+            let deps = reader.parseDependencyFileList(dependencies)
+            XCTAssertTrue(deps.count == 1000)
+        }
+    }
+
+    func testDeprecatedParseDependenciesFilesListOfAnObjectUsingUTF8View() throws {
+        let file = try pathForTestData(name: "dependencies")
+        let reader = FileDependenciesReader(file, accessor: FileManager.default)
+        let fileData = try reader.getFileData()
+        let fileString = try reader.getFileStringFromData(fileData: fileData)
+        let yaml = try reader.getYaml(fileString: fileString)
+
+        guard let dependencies = yaml["/This/Is/A/Path/To/Some/Object/objectfile.o"] else {
+            XCTAssertTrue(false)
+            return
+        }
+
+        self.measure { // 0.00048
+            let deps = reader.parseDependencyFileList(dependencies)
+            XCTAssertTrue(deps.count == 100)
+        }
+    }
+}

Tests/XCRemoteCacheTests/Dependencies/DependenciesWriterTests.swift

@@ -0,0 +1,47 @@
+// Copyright (c) 2021 Spotify AB.
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+@testable import XCRemoteCache
+import XCTest
+
+class FileDependenciesWriterTests: XCTestCase {
+
+    private func generateTempFileURL(name: String = #function) throws -> URL {
+        let directory = NSTemporaryDirectory()
+        return try NSURL.fileURL(withPathComponents: [directory, name]).unwrap()
+    }
+
+    func testWriteDependencyWithSpace() throws {
+        let url = try generateTempFileURL()
+        let writer = FileDependenciesWriter(url, accessor: FileManager.default)
+
+        try writer.writeGeneric(dependencies: [
+            "/SomePath/Pods/Target Support Files/lottie-ios/lottie-ios-dummy.m",
+        ])
+
+        let expectedContent = """
+        dependencies: /SomePath/Pods/Target\\ Support\\ Files/lottie-ios/lottie-ios-dummy.m
+
+        """
+
+        let content = String(data: try Data(contentsOf: url), encoding: .utf8)
+
+        XCTAssertEqual(content, expectedContent)
+    }
+}

Tests/XCRemoteCacheTests/Fingerprint/EnvironmentFingerprintGeneratorTests.swift

@@ -39,13 +39,17 @@ class EnvironmentFingerprintGeneratorTests: XCTestCase {
     private static let currentVersion = "5"
 
     private var config: XCRemoteCacheConfig!
-    private var generator: FingerprintAccumulator!
+    private var generator: FingerprintAccumulator! {
+        return generatorFake
+    }
+
+    private var generatorFake: FingerprintAccumulatorFake!
     private var fingerprintGenerator: EnvironmentFingerprintGenerator!
 
     override func setUp() {
         super.setUp()
         config = XCRemoteCacheConfig(sourceRoot: "")
-        generator = FingerprintAccumulatorFake()
+        generatorFake = FingerprintAccumulatorFake()
         fingerprintGenerator = EnvironmentFingerprintGenerator(
             configuration: config,
             env: Self.defaultENV,
@@ -92,4 +96,11 @@ class EnvironmentFingerprintGeneratorTests: XCTestCase {
 
         XCTAssertEqual(fingerprint, "GCC,YES,TARGET,CONG,PLAT,XC,1,2,3,4,AR,CUSTOM_VALUE,\(Self.currentVersion)")
     }
+
+    func testFingerprintIsGeneratedOnce() throws {
+        let fingerprint1 = try fingerprintGenerator.generateFingerprint()
+        let fingerprint2 = try fingerprintGenerator.generateFingerprint()
+        XCTAssertEqual(fingerprint1, fingerprint2)
+        XCTAssertEqual(generatorFake.generateCallsCount, 1)
+    }
 }

Tests/XCRemoteCacheTests/Network/NetworkClientImplTests.swift

@@ -72,7 +72,13 @@ class NetworkClientImplTests: XCTestCase {
         configuration.protocolClasses = [URLProtocolStub.self]
         session = URLSession(configuration: configuration)
         fileManager = FileManager.default
-        client = NetworkClientImpl(session: session, retries: 0, fileManager: fileManager, awsV4Signature: nil)
+        client = NetworkClientImpl(
+            session: session,
+            retries: 0,
+            retryDelay: 0,
+            fileManager: fileManager,
+            awsV4Signature: nil
+        )
     }
 
     override func tearDown() {
@@ -87,7 +93,7 @@ class NetworkClientImplTests: XCTestCase {
         super.tearDown()
     }
 
-    func waitForResponse<R>(_ action: (@escaping Completion<R>) -> Void) throws -> Result<R, NetworkClientError> {
+    func waitForResponse<R>(_ action: (@escaping Completion<R>) -> Void, timeout: TimeInterval = 0.1) throws -> Result<R, NetworkClientError> {
         let responseExpectation = expectation(description: "RequestResponse")
         var receivedResponse: Result<R, NetworkClientError>?
 
@@ -95,7 +101,7 @@ class NetworkClientImplTests: XCTestCase {
             receivedResponse = response
             responseExpectation.fulfill()
         }
-        waitForExpectations(timeout: 0.1)
+        waitForExpectations(timeout: timeout)
         return try receivedResponse.unwrap()
     }
 
@@ -141,9 +147,15 @@ class NetworkClientImplTests: XCTestCase {
     }
 
     func testUploadFilureWith400Retries() throws {
-        client = NetworkClientImpl(session: session, retries: 2, fileManager: fileManager, awsV4Signature: nil)
+        client = NetworkClientImpl(
+            session: session,
+            retries: 2,
+            retryDelay: 0,
+            fileManager: fileManager,
+            awsV4Signature: nil
+        )
         responses[url] = .success(failureResponse, Data())
-        _ = try waitForResponse { client.upload(fileURL, as: url, completion: $0) }
+        _ = try waitForResponse({ client.upload(fileURL, as: url, completion: $0) }, timeout: 0.5)
 
         XCTAssertEqual(
             requests.map(\.url),
@@ -153,7 +165,13 @@ class NetworkClientImplTests: XCTestCase {
     }
 
     func testUploadSuccessDoesntRetry() throws {
-        client = NetworkClientImpl(session: session, retries: 0, fileManager: fileManager, awsV4Signature: nil)
+        client = NetworkClientImpl(
+            session: session,
+            retries: 0,
+            retryDelay: 0,
+            fileManager: fileManager,
+            awsV4Signature: nil
+        )
         responses[url] = .success(successResponse, Data())
         _ = try waitForResponse { client.upload(fileURL, as: url, completion: $0) }
 
@@ -208,7 +226,13 @@ class NetworkClientImplTests: XCTestCase {
             service: "iam",
             date: Date(timeIntervalSince1970: 1_440_938_160)
         )
-        client = NetworkClientImpl(session: session, retries: 0, fileManager: fileManager, awsV4Signature: signature)
+        client = NetworkClientImpl(
+            session: session,
+            retries: 0,
+            retryDelay: 0,
+            fileManager: fileManager,
+            awsV4Signature: signature
+        )
         responses[url] = .success(successResponse, Data())
         _ = try waitForResponse { client.fetch(url, completion: $0) }
 

Tests/XCRemoteCacheTests/TestDoubles/FingerprintAccumulatorFake.swift

@@ -34,5 +34,11 @@ class FingerprintAccumulatorFake: FingerprintAccumulator {
         appendedStrings.append("FILE{\(file.path)}")
     }
 
-    func generate() throws -> RawFingerprint { return appendedStrings.joined(separator: ",") }
+    private(set) var generateCallsCount = 0
+    func generate() throws -> RawFingerprint {
+        defer {
+            generateCallsCount += 1
+        }
+        return appendedStrings.joined(separator: ",")
+    }
 }

cocoapods-plugin/README.md

@@ -63,7 +63,3 @@ To fully uninstall the plugin, call:
 ```bash
 gem uninstall cocoapods-xcremotecache
 ```
-
-## Limitations
-
-* When `generate_multiple_pod_projects` mode is enabled, only first-party targets are cached by XCRemoteCache (all dependencies are compiled locally).

cocoapods-plugin/lib/cocoapods-xcremotecache/command/hooks.rb

@@ -27,8 +27,9 @@ module CocoapodsXCRemoteCacheModifier
     LLDB_INIT_COMMENT="#RemoteCacheCustomSourceMap"
     LLDB_INIT_PATH = "#{ENV['HOME']}/.lldbinit"
     FAT_ARCHIVE_NAME_INFIX = 'arm64-x86_64'
+    XCRC_COOCAPODS_ROOT_KEY = 'XCRC_COOCAPODS_ROOT'
 
-    # List of plugins' user properties that should be copied to .rcinfo 
+    # List of plugins' user properties that should not be copied to .rcinfo 
     CUSTOM_CONFIGURATION_KEYS = [
       'enabled', 
       'xcrc_location',
@@ -38,9 +39,7 @@ module CocoapodsXCRemoteCacheModifier
       'check_build_configuration', 
       'check_platform', 
       'modify_lldb_init',
-      'prettify_meta_files',
       'fake_src_root',
-      'disable_certificate_verification'
     ]
 
     class XCRemoteCache
@@ -64,9 +63,14 @@ module CocoapodsXCRemoteCacheModifier
           'exclude_targets' => [],
           'prettify_meta_files' => false,
           'fake_src_root' => "/#{'x' * 10 }",
-          'disable_certificate_verification' => false
+          'disable_certificate_verification' => false,
+          'custom_rewrite_envs' => []
         }
         @@configuration.merge! default_values.select { |k, v| !@@configuration.key?(k) }
+        # Always include XCRC_COOCAPODS_ROOT_KEY in custom_rewrite_envs
+        unless @@configuration['custom_rewrite_envs'].include?(XCRC_COOCAPODS_ROOT_KEY)
+          @@configuration['custom_rewrite_envs'] << XCRC_COOCAPODS_ROOT_KEY
+        end
       end
 
       def self.validate_configuration()
@@ -109,6 +113,8 @@ module CocoapodsXCRemoteCacheModifier
       # @param final_target [String] name of target that should trigger marking
       def self.enable_xcremotecache(target, repo_distance, xc_location, xc_cc_path, mode, exclude_build_configurations, final_target, fake_src_root)
         srcroot_relative_xc_location = parent_dir(xc_location, repo_distance)
+        # location of the entrite CocoaPods project, relative to SRCROOT
+        srcroot_relative_project_location = parent_dir('', repo_distance)
 
         target.build_configurations.each do |config|
           # apply only for relevant Configurations
@@ -121,9 +127,12 @@ module CocoapodsXCRemoteCacheModifier
           config.build_settings['SWIFT_EXEC'] = ["$SRCROOT/#{srcroot_relative_xc_location}/xcswiftc"]
           config.build_settings['LIBTOOL'] = ["$SRCROOT/#{srcroot_relative_xc_location}/xclibtool"]
           config.build_settings['LD'] = ["$SRCROOT/#{srcroot_relative_xc_location}/xcld"]
+          config.build_settings['LDPLUSPLUS'] = ["$SRCROOT/#{srcroot_relative_xc_location}/xcldplusplus"]
+          config.build_settings['SWIFT_USE_INTEGRATED_DRIVER'] = ['NO']
 
           config.build_settings['XCREMOTE_CACHE_FAKE_SRCROOT'] = fake_src_root
           config.build_settings['XCRC_PLATFORM_PREFERRED_ARCH'] = ["$(LINK_FILE_LIST_$(CURRENT_VARIANT)_$(PLATFORM_PREFERRED_ARCH):dir:standardizepath:file:default=arm64)"]
+          config.build_settings[XCRC_COOCAPODS_ROOT_KEY] = ["$SRCROOT/#{srcroot_relative_project_location}"]
           debug_prefix_map_replacement = '$(SRCROOT' + ':dir:standardizepath' * repo_distance + ')'
           add_cflags!(config.build_settings, '-fdebug-prefix-map', "#{debug_prefix_map_replacement}=$(XCREMOTE_CACHE_FAKE_SRCROOT)")
           add_swiftflags!(config.build_settings, '-debug-prefix-map', "#{debug_prefix_map_replacement}=$(XCREMOTE_CACHE_FAKE_SRCROOT)")
@@ -174,6 +183,11 @@ module CocoapodsXCRemoteCacheModifier
           "$(TARGET_BUILD_DIR)/$(MODULES_FOLDER_PATH)/$(PRODUCT_MODULE_NAME).swiftmodule/$(XCRC_PLATFORM_PREFERRED_ARCH)-$(LLVM_TARGET_TRIPLE_VENDOR)-$(SWIFT_PLATFORM_TARGET_PREFIX)$(LLVM_TARGET_TRIPLE_SUFFIX).swiftmodule.md5"
         ]
         postbuild_script.dependency_file = "$(TARGET_TEMP_DIR)/postbuild.d"
+        # Move postbuild (last element) to the position after compile sources phase (to make it real 'postbuild')
+        if !existing_postbuild_script 
+          compile_phase_index = target.build_phases.index(target.source_build_phase)
+          target.build_phases.insert(compile_phase_index + 1, target.build_phases.delete(postbuild_script))
+        end
 
         # Mark a sha as ready for a given platform and configuration when building the final_target
         if (mode == 'producer' || mode == 'producer-fast') && target.name == final_target
@@ -201,9 +215,12 @@ module CocoapodsXCRemoteCacheModifier
           config.build_settings.delete('SWIFT_EXEC') if config.build_settings.key?('SWIFT_EXEC')
           config.build_settings.delete('LIBTOOL') if config.build_settings.key?('LIBTOOL')
           config.build_settings.delete('LD') if config.build_settings.key?('LD')
+          config.build_settings.delete('LDPLUSPLUS') if config.build_settings.key?('LDPLUSPLUS')
+          config.build_settings.delete('SWIFT_USE_INTEGRATED_DRIVER') if config.build_settings.key?('SWIFT_USE_INTEGRATED_DRIVER')
           # Remove Fake src root for ObjC & Swift
           config.build_settings.delete('XCREMOTE_CACHE_FAKE_SRCROOT')
           config.build_settings.delete('XCRC_PLATFORM_PREFERRED_ARCH')
+          config.build_settings.delete(XCRC_COOCAPODS_ROOT_KEY)
           remove_cflags!(config.build_settings, '-fdebug-prefix-map')
           remove_swiftflags!(config.build_settings, '-debug-prefix-map')
         end
@@ -223,7 +240,7 @@ module CocoapodsXCRemoteCacheModifier
       end
 
       def self.download_xcrc_if_needed(local_location)
-        required_binaries = ['xcld', 'xclibtool', 'xcpostbuild', 'xcprebuild', 'xcprepare', 'xcswiftc']
+        required_binaries = ['xcld', 'xcldplusplus', 'xclibtool', 'xcpostbuild', 'xcprebuild', 'xcprepare', 'xcswiftc']
         binaries_exist = required_binaries.reduce(true) do |exists, filename|
           file_path = File.join(local_location, filename) 
           exists = exists && File.exist?(file_path)

cocoapods-plugin/lib/cocoapods-xcremotecache/gem_version.rb

@@ -13,5 +13,5 @@
 # limitations under the License.
 
 module CocoapodsXcremotecache
-  VERSION = "0.0.11"
+  VERSION = "0.0.13"
 end

e2eTests/StandaloneSampleApp/.rcinfo

@@ -0,0 +1,8 @@
+---
+cache_addresses: 
+  - 'http://localhost:8080/cache/pods'
+primary_repo: '.'
+primary_branch: 'e2e-test-branch'
+mode: 'consumer'
+final_target': XCRemoteCacheSample'
+artifact_maximum_age: 0 # do not use local cache in ~/Library/Caches/XCRemoteCache

e2eTests/StandaloneSampleApp/MixedTarget/MixedTarget-Bridging-Header.h

@@ -0,0 +1,5 @@
+//
+//  Use this file to import your target's public headers that you would like to expose to Swift.
+//
+
+#import "SomeObjC.h"

e2eTests/StandaloneSampleApp/MixedTarget/MixedTarget.swift

@@ -0,0 +1,6 @@
+import Foundation
+
+@objc
+public class SomeClass: NSObject {
+    @objc public var someEnum: SomeEnum = .default
+}

e2eTests/StandaloneSampleApp/MixedTarget/SomeObjC.h

@@ -0,0 +1,10 @@
+
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef NS_ENUM(NSInteger, SomeEnum) {
+    SomeEnumDefault
+};
+
+NS_ASSUME_NONNULL_END

e2eTests/StandaloneSampleApp/StandaloneApp.xcodeproj/project.pbxproj

@@ -0,0 +1,544 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 55;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		36201A102843B3C3002FF70F /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36201A0F2843B3C3002FF70F /* AppDelegate.swift */; };
+		36201A122843B3C3002FF70F /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36201A112843B3C3002FF70F /* SceneDelegate.swift */; };
+		36201A142843B3C3002FF70F /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36201A132843B3C3002FF70F /* ViewController.swift */; };
+		36201A172843B3C3002FF70F /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 36201A152843B3C3002FF70F /* Main.storyboard */; };
+		36201A192843B3C7002FF70F /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 36201A182843B3C7002FF70F /* Assets.xcassets */; };
+		36201A1C2843B3C7002FF70F /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 36201A1A2843B3C7002FF70F /* LaunchScreen.storyboard */; };
+		36201A2A2843B3D3002FF70F /* MixedTarget.swift in Sources */ = {isa = PBXBuildFile; fileRef = 36201A292843B3D3002FF70F /* MixedTarget.swift */; };
+		36201A362843B435002FF70F /* libMixedTarget.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 36201A272843B3D3002FF70F /* libMixedTarget.a */; };
+		36201A392843BDDC002FF70F /* StandaloneObjc.m in Sources */ = {isa = PBXBuildFile; fileRef = 36201A382843BDDC002FF70F /* StandaloneObjc.m */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		36201A332843B431002FF70F /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = 36201A042843B3C3002FF70F /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = 36201A262843B3D3002FF70F;
+			remoteInfo = MixedTarget;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		36201A252843B3D3002FF70F /* CopyFiles */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "include/$(PRODUCT_NAME)";
+			dstSubfolderSpec = 16;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		36201A0C2843B3C3002FF70F /* StandaloneApp.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = StandaloneApp.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		36201A0F2843B3C3002FF70F /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
+		36201A112843B3C3002FF70F /* SceneDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SceneDelegate.swift; sourceTree = "<group>"; };
+		36201A132843B3C3002FF70F /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		36201A162843B3C3002FF70F /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		36201A182843B3C7002FF70F /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		36201A1B2843B3C7002FF70F /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		36201A1D2843B3C7002FF70F /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		36201A272843B3D3002FF70F /* libMixedTarget.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libMixedTarget.a; sourceTree = BUILT_PRODUCTS_DIR; };
+		36201A292843B3D3002FF70F /* MixedTarget.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MixedTarget.swift; sourceTree = "<group>"; };
+		36201A2F2843B413002FF70F /* MixedTarget-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "MixedTarget-Bridging-Header.h"; sourceTree = "<group>"; };
+		36201A302843B414002FF70F /* SomeObjC.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = SomeObjC.h; sourceTree = "<group>"; };
+		36201A372843BDDC002FF70F /* StandaloneObjc.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = StandaloneObjc.h; sourceTree = "<group>"; };
+		36201A382843BDDC002FF70F /* StandaloneObjc.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = StandaloneObjc.m; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
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+			buildActionMask = 2147483647;
+			files = (
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+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		36201A242843B3D3002FF70F /* Frameworks */ = {
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+			buildActionMask = 2147483647;
+			files = (
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+			runOnlyForDeploymentPostprocessing = 0;
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+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		36201A032843B3C3002FF70F = {
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+				36201A282843B3D3002FF70F /* MixedTarget */,
+				36201A0D2843B3C3002FF70F /* Products */,
+				36201A352843B435002FF70F /* Frameworks */,
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+			sourceTree = "<group>";
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+			children = (
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+				36201A272843B3D3002FF70F /* libMixedTarget.a */,
+			);
+			name = Products;
+			sourceTree = "<group>";
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+		36201A0E2843B3C3002FF70F /* StandaloneApp */ = {
+			isa = PBXGroup;
+			children = (
+				36201A0F2843B3C3002FF70F /* AppDelegate.swift */,
+				36201A112843B3C3002FF70F /* SceneDelegate.swift */,
+				36201A132843B3C3002FF70F /* ViewController.swift */,
+				36201A152843B3C3002FF70F /* Main.storyboard */,
+				36201A182843B3C7002FF70F /* Assets.xcassets */,
+				36201A1A2843B3C7002FF70F /* LaunchScreen.storyboard */,
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+				36201A372843BDDC002FF70F /* StandaloneObjc.h */,
+				36201A382843BDDC002FF70F /* StandaloneObjc.m */,
+			);
+			path = StandaloneApp;
+			sourceTree = "<group>";
+		};
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+			isa = PBXGroup;
+			children = (
+				36201A292843B3D3002FF70F /* MixedTarget.swift */,
+				36201A302843B414002FF70F /* SomeObjC.h */,
+				36201A2F2843B413002FF70F /* MixedTarget-Bridging-Header.h */,
+			);
+			path = MixedTarget;
+			sourceTree = "<group>";
+		};
+		36201A352843B435002FF70F /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
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+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
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+			buildConfigurationList = 36201A202843B3C7002FF70F /* Build configuration list for PBXNativeTarget "StandaloneApp" */;
+			buildPhases = (
+				36201A082843B3C3002FF70F /* Sources */,
+				36201A092843B3C3002FF70F /* Frameworks */,
+				36201A0A2843B3C3002FF70F /* Resources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+				36201A342843B431002FF70F /* PBXTargetDependency */,
+			);
+			name = StandaloneApp;
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+			productType = "com.apple.product-type.application";
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+			buildConfigurationList = 36201A2B2843B3D3002FF70F /* Build configuration list for PBXNativeTarget "MixedTarget" */;
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+				36201A242843B3D3002FF70F /* Frameworks */,
+				36201A252843B3D3002FF70F /* CopyFiles */,
+				36201A3A2843BE0E002FF70F /* Copy Swift Objective-C Interface Header */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = MixedTarget;
+			productName = MixedTarget;
+			productReference = 36201A272843B3D3002FF70F /* libMixedTarget.a */;
+			productType = "com.apple.product-type.library.static";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		36201A042843B3C3002FF70F /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
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+				LastSwiftUpdateCheck = 1320;
+				LastUpgradeCheck = 1320;
+				TargetAttributes = {
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+						LastSwiftMigration = 1320;
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+					36201A262843B3D3002FF70F = {
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+						LastSwiftMigration = 1320;
+					};
+				};
+			};
+			buildConfigurationList = 36201A072843B3C3002FF70F /* Build configuration list for PBXProject "StandaloneApp" */;
+			compatibilityVersion = "Xcode 13.0";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+				Base,
+			);
+			mainGroup = 36201A032843B3C3002FF70F;
+			productRefGroup = 36201A0D2843B3C3002FF70F /* Products */;
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+			projectRoot = "";
+			targets = (
+				36201A0B2843B3C3002FF70F /* StandaloneApp */,
+				36201A262843B3D3002FF70F /* MixedTarget */,
+			);
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+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		36201A0A2843B3C3002FF70F /* Resources */ = {
+			isa = PBXResourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				36201A1C2843B3C7002FF70F /* LaunchScreen.storyboard in Resources */,
+				36201A192843B3C7002FF70F /* Assets.xcassets in Resources */,
+				36201A172843B3C3002FF70F /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXShellScriptBuildPhase section */
+		36201A3A2843BE0E002FF70F /* Copy Swift Objective-C Interface Header */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"$(DERIVED_SOURCES_DIR)/$(SWIFT_OBJC_INTERFACE_HEADER_NAME)",
+				"$(DERIVED_SOURCES_DIR)/$(SWIFT_OBJC_INTERFACE_HEADER_NAME).md5",
+			);
+			name = "Copy Swift Objective-C Interface Header";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+				"$(BUILT_PRODUCTS_DIR)/include/$(PRODUCT_MODULE_NAME)/$(SWIFT_OBJC_INTERFACE_HEADER_NAME)",
+				"$(BUILT_PRODUCTS_DIR)/include/$(PRODUCT_MODULE_NAME)/$(SWIFT_OBJC_INTERFACE_HEADER_NAME).md5",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "ditto \"${SCRIPT_INPUT_FILE_0}\" \"${SCRIPT_OUTPUT_FILE_0}\"\nditto \"${SCRIPT_INPUT_FILE_1}\" \"${SCRIPT_OUTPUT_FILE_1}\" || true\n\n";
+		};
+/* End PBXShellScriptBuildPhase section */
+
+/* Begin PBXSourcesBuildPhase section */
+		36201A082843B3C3002FF70F /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				36201A142843B3C3002FF70F /* ViewController.swift in Sources */,
+				36201A102843B3C3002FF70F /* AppDelegate.swift in Sources */,
+				36201A392843BDDC002FF70F /* StandaloneObjc.m in Sources */,
+				36201A122843B3C3002FF70F /* SceneDelegate.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		36201A232843B3D3002FF70F /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				36201A2A2843B3D3002FF70F /* MixedTarget.swift in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXTargetDependency section */
+		36201A342843B431002FF70F /* PBXTargetDependency */ = {
+			isa = PBXTargetDependency;
+			target = 36201A262843B3D3002FF70F /* MixedTarget */;
+			targetProxy = 36201A332843B431002FF70F /* PBXContainerItemProxy */;
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+/* End PBXTargetDependency section */
+
+/* Begin PBXVariantGroup section */
+		36201A152843B3C3002FF70F /* Main.storyboard */ = {
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+			children = (
+				36201A162843B3C3002FF70F /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		36201A1A2843B3C7002FF70F /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				36201A1B2843B3C7002FF70F /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		36201A1E2843B3C7002FF70F /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
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+				CLANG_WARN_COMMA = YES;
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+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
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+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
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+				DEBUG_INFORMATION_FORMAT = dwarf;
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+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
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+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.2;
+				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
+				MTL_FAST_MATH = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+			};
+			name = Debug;
+		};
+		36201A1F2843B3C7002FF70F /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++17";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu11;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.2;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-O";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		36201A212843B3C7002FF70F /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				GENERATE_INFOPLIST_FILE = YES;
+				HEADER_SEARCH_PATHS = "$(BUILT_PRODUCTS_DIR)/include/";
+				INFOPLIST_FILE = StandaloneApp/Info.plist;
+				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
+				INFOPLIST_KEY_UILaunchStoryboardName = LaunchScreen;
+				INFOPLIST_KEY_UIMainStoryboardFile = Main;
+				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
+				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.xcremotecache.StandaloneApp;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		36201A222843B3C7002FF70F /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_STYLE = Automatic;
+				CURRENT_PROJECT_VERSION = 1;
+				GENERATE_INFOPLIST_FILE = YES;
+				HEADER_SEARCH_PATHS = "$(BUILT_PRODUCTS_DIR)/include/";
+				INFOPLIST_FILE = StandaloneApp/Info.plist;
+				INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents = YES;
+				INFOPLIST_KEY_UILaunchStoryboardName = LaunchScreen;
+				INFOPLIST_KEY_UIMainStoryboardFile = Main;
+				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
+				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+				);
+				MARKETING_VERSION = 1.0;
+				PRODUCT_BUNDLE_IDENTIFIER = com.xcremotecache.StandaloneApp;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+		36201A2C2843B3D3002FF70F /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_STYLE = Automatic;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@loader_path/Frameworks",
+				);
+				OTHER_LDFLAGS = "-ObjC";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SKIP_INSTALL = YES;
+				SWIFT_OBJC_BRIDGING_HEADER = "MixedTarget/MixedTarget-Bridging-Header.h";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		36201A2D2843B3D3002FF70F /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CLANG_ENABLE_MODULES = YES;
+				CODE_SIGN_STYLE = Automatic;
+				LD_RUNPATH_SEARCH_PATHS = (
+					"$(inherited)",
+					"@executable_path/Frameworks",
+					"@loader_path/Frameworks",
+				);
+				OTHER_LDFLAGS = "-ObjC";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SKIP_INSTALL = YES;
+				SWIFT_OBJC_BRIDGING_HEADER = "MixedTarget/MixedTarget-Bridging-Header.h";
+				SWIFT_VERSION = 5.0;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		36201A072843B3C3002FF70F /* Build configuration list for PBXProject "StandaloneApp" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				36201A1E2843B3C7002FF70F /* Debug */,
+				36201A1F2843B3C7002FF70F /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		36201A202843B3C7002FF70F /* Build configuration list for PBXNativeTarget "StandaloneApp" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				36201A212843B3C7002FF70F /* Debug */,
+				36201A222843B3C7002FF70F /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		36201A2B2843B3D3002FF70F /* Build configuration list for PBXNativeTarget "MixedTarget" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				36201A2C2843B3D3002FF70F /* Debug */,
+				36201A2D2843B3D3002FF70F /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 36201A042843B3C3002FF70F /* Project object */;
+}

e2eTests/StandaloneSampleApp/StandaloneApp.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

e2eTests/StandaloneSampleApp/StandaloneApp.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

e2eTests/StandaloneSampleApp/StandaloneApp/AppDelegate.swift

@@ -0,0 +1,29 @@
+import UIKit
+
+@main
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+

e2eTests/StandaloneSampleApp/StandaloneApp/Assets.xcassets/AccentColor.colorset/Contents.json

@@ -0,0 +1,11 @@
+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

e2eTests/StandaloneSampleApp/StandaloneApp/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,98 @@
+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "76x76"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "76x76"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "83.5x83.5"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "scale" : "1x",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

e2eTests/StandaloneSampleApp/StandaloneApp/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

e2eTests/StandaloneSampleApp/StandaloneApp/Base.lproj/LaunchScreen.storyboard

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>

e2eTests/StandaloneSampleApp/StandaloneApp/Base.lproj/Main.storyboard

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" customModuleProvider="target" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>

e2eTests/StandaloneSampleApp/StandaloneApp/Info.plist

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+</dict>
+</plist>

e2eTests/StandaloneSampleApp/StandaloneApp/SceneDelegate.swift

@@ -0,0 +1,45 @@
+import UIKit
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+        guard let _ = (scene as? UIWindowScene) else { return }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not necessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+

e2eTests/StandaloneSampleApp/StandaloneApp/StandaloneObjc.h

@@ -0,0 +1,9 @@
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface StandaloneObjc : NSObject
+
+@end
+
+NS_ASSUME_NONNULL_END

e2eTests/StandaloneSampleApp/StandaloneApp/StandaloneObjc.m

@@ -0,0 +1,6 @@
+#import "StandaloneObjc.h"
+#import "MixedTarget/MixedTarget-Swift.h"
+
+@implementation StandaloneObjc
+
+@end

e2eTests/StandaloneSampleApp/StandaloneApp/ViewController.swift

@@ -0,0 +1,13 @@
+import UIKit
+import MixedTarget
+
+class ViewController: UIViewController {
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view.
+    }
+
+
+}
+

tasks/e2e.rb

@@ -5,6 +5,7 @@ namespace :e2e do
     COCOAPODS_DIR = 'cocoapods-plugin'
     COCOAPODS_GEMSPEC_FILENAME = "cocoapods-xcremotecache.gemspec"
     E2E_COCOAPODS_SAMPLE_DIR = 'e2eTests/XCRemoteCacheSample'
+    E2E_STANDALONE_SAMPLE_DIR = 'e2eTests/StandaloneSampleApp'
     GIT_REMOTE_NAME = 'self'
     # Location of the remote address that points to itself
     GIT_REMOTE_ADDRESS = '.'
@@ -25,6 +26,7 @@ namespace :e2e do
     Stats = Struct.new(:hits, :misses, :hit_rate)
 
     # run E2E tests
+    # TODO: add :run_standalone when support for bridging headers support is ready
     task :run => [:run_cocoapods]
 
     # run E2E tests for CocoaPods-powered projects
@@ -41,6 +43,51 @@ namespace :e2e do
         clean
     end
 
+    # run E2E tests for standalone (non-CocoaPods) projects
+    task :run_standalone do
+        clean_server
+        start_nginx
+        configure_git
+        # Prepare binaries for the standalone mode
+        prepare_for_standalone(E2E_STANDALONE_SAMPLE_DIR)
+
+        puts 'Building standalone producer...'
+        ####### Producer #########
+        Dir.chdir(E2E_STANDALONE_SAMPLE_DIR) do
+            clean_git
+            # Run integrate the project
+            p "#{XCRC_BINARIES}/xcprepare integrate --input StandaloneApp.xcodeproj --mode producer --final-producer-target StandaloneApp"
+            system("pwd")
+            system("#{XCRC_BINARIES}/xcprepare integrate --input StandaloneApp.xcodeproj --mode producer --final-producer-target StandaloneApp")
+            # Build the project to fill in the cache
+            build_project(nil, "StandaloneApp.xcodeproj", 'StandaloneApp')
+            system("#{XCRC_BINARIES}/xcprepare stats --reset --format json")
+        end
+
+        puts 'Building standalone consumer...'
+
+        ####### Consumer #########
+        # new dir to emulate different srcroot
+        consumer_srcroot = "#{E2E_STANDALONE_SAMPLE_DIR}_consumer"
+        system("mv #{E2E_STANDALONE_SAMPLE_DIR} #{consumer_srcroot}")
+        at_exit { puts("reverting #{E2E_STANDALONE_SAMPLE_DIR}"); system("mv #{consumer_srcroot} #{E2E_STANDALONE_SAMPLE_DIR}") }
+
+        prepare_for_standalone(consumer_srcroot)
+        Dir.chdir(consumer_srcroot) do
+            system("#{XCRC_BINARIES}/xcprepare integrate --input StandaloneApp.xcodeproj --mode consumer")
+            build_project(nil, "StandaloneApp.xcodeproj", 'StandaloneApp', {'derivedDataPath' => "#{DERIVED_DATA_PATH}_consumer"})
+            valide_hit_rate
+
+            puts 'Building standalone consumer with local change...'
+            # Extra: validate local compilation of the Standalone ObjC code
+            system("echo '' >> StandaloneApp/StandaloneObjc.m")
+            build_project(nil, "StandaloneApp.xcodeproj", 'StandaloneApp', {'derivedDataPath' => "#{DERIVED_DATA_PATH}_consumer_local"})
+        end
+
+        # Revert all side effects
+        clean
+    end
+
     # Build and install a plugin
     def self.install_cocoapods_plugin
         Dir.chdir(COCOAPODS_DIR) do
@@ -114,16 +161,16 @@ namespace :e2e do
         end
     end
 
-    def self.build_project(extra_args = {})
-        system('pod install')
+    def self.build_project(workspace, project, scheme, extra_args = {})
         xcodebuild_args = {
-            'workspace' => 'XCRemoteCacheSample.xcworkspace',
-            'scheme' => 'XCRemoteCacheSample',
+            'workspace' => workspace,
+            'project' => project,
+            'scheme' => scheme,
             'configuration' => 'Debug',
             'sdk' => 'iphonesimulator',
             'destination' => 'generic/platform=iOS Simulator',
             'derivedDataPath' => DERIVED_DATA_PATH,
-        }.merge(extra_args)
+        }.merge(extra_args).compact
         xcodebuild_vars = {
             'EXCLUDED_ARCHS' => 'arm64 i386'
         }
@@ -131,7 +178,7 @@ namespace :e2e do
         args.push(*xcodebuild_args.map {|k,v| "-#{k} '#{v}'"})
         args.push(*xcodebuild_vars.map {|k,v| "#{k}='#{v}'"})
         args.push('clean build')
-        args.push("> #{LOG_NAME}")
+        args.push("| tee #{LOG_NAME}")
         puts 'Building a project with xcodebuild...'
         system(args.join(' '))
         unless $?.success?
@@ -140,6 +187,11 @@ namespace :e2e do
         end
     end
 
+    def self.build_project_cocoapods(extra_args = {})
+        system('pod install')
+        build_project('XCRemoteCacheSample.xcworkspace', nil, 'XCRemoteCacheSample', extra_args)
+    end
+
     def self.read_stats 
         stats_json_string = JSON.parse(`#{XCRC_BINARIES}/xcprepare stats --format json`)
         misses = stats_json_string.fetch('miss_count', 0)
@@ -153,8 +205,8 @@ namespace :e2e do
     # validate 100% hit rate
     def self.valide_hit_rate
         status = read_stats()
-        raise "Failure: Hit rate is only #{status.hit_rate}% (#{status.hits}/#{status.all_targets})" if status.misses > 0
         all_targets = status.misses + status.hits
+        raise "Failure: Hit rate is only #{status.hit_rate}% (#{all_targets})" if status.misses > 0
         puts("Hit rate: #{status.hit_rate}% (#{status.hits}/#{all_targets})")
     end
 
@@ -169,7 +221,7 @@ namespace :e2e do
         dump_podfile(producer_configuration, template_path)
         puts('Building producer ...')
         Dir.chdir(E2E_COCOAPODS_SAMPLE_DIR) do
-            build_project
+            build_project_cocoapods
             # reset XCRemoteCache stats
             system("#{XCRC_BINARIES}/xcprepare stats --reset --format json")
         end
@@ -179,8 +231,13 @@ namespace :e2e do
         dump_podfile(consumer_configuration, template_path)
         puts('Building consumer ...')
         Dir.chdir(E2E_COCOAPODS_SAMPLE_DIR) do
-            build_project({'derivedDataPath' => "#{DERIVED_DATA_PATH}_consumer"})
+            build_project_cocoapods({'derivedDataPath' => "#{DERIVED_DATA_PATH}_consumer"})
             valide_hit_rate
         end
     end
+
+    def self.prepare_for_standalone(dir)
+        clean_git
+        system("ln -s $(pwd)/releases #{dir}/#{XCRC_BINARIES}")
+    end
 end