Extract release agnostic logic in bump-oss-version to set-rn-version

Summary:
Changelog: [Internal] Copy over universal (across dry-run, nightly, release) work in `bump-oss-version` script

This work is part of an effort to automate the release process by using a push to a release branch as a trigger to prepare, package and deploy react-native to npm from CircleCI

The following diagram describes the context (what kind of releases we do, relevant scripts and what they do), the pre-existing process for the different types of release and how I've modified the process.
{F683387103}

This diff creates the `set-rn-version` script referenced by extracting it out of `bump-oss-version`

Reviewed By: sota000

Differential Revision: D32556608

fbshipit-source-id: 6c2868c01ddd930375279a5105bcd0d447f65734

scripts/set-rn-version.js

@@ -0,0 +1,163 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+'use strict';
+
+/**
+ * This script updates relevant React Native files with supplied version:
+ *   * Prepares a package.json suitable for package consumption
+ *   * Updates package.json for template project
+ *   * Updates the version in gradle files and makes sure they are consistent between each other
+ *   * Creates a gemfile
+ */
+const fs = require('fs');
+const {cat, echo, exec, exit, sed} = require('shelljs');
+const yargs = require('yargs');
+const {parseVersion} = require('./version-utils');
+
+let argv = yargs.option('v', {
+  alias: 'to-version',
+  type: 'string',
+}).argv;
+
+const version = argv.toVersion;
+
+if (!version) {
+  echo('You must specify a version using -v');
+  exit(1);
+}
+
+let major,
+  minor,
+  patch,
+  prerelease = -1;
+try {
+  ({major, minor, patch, prerelease} = parseVersion(version));
+} catch (e) {
+  echo(e.message);
+  exit(1);
+}
+
+fs.writeFileSync(
+  'ReactAndroid/src/main/java/com/facebook/react/modules/systeminfo/ReactNativeVersion.java',
+  cat('scripts/versiontemplates/ReactNativeVersion.java.template')
+    .replace('${major}', major)
+    .replace('${minor}', minor)
+    .replace('${patch}', patch)
+    .replace(
+      '${prerelease}',
+      prerelease !== undefined ? `"${prerelease}"` : 'null',
+    ),
+  'utf-8',
+);
+
+fs.writeFileSync(
+  'React/Base/RCTVersion.m',
+  cat('scripts/versiontemplates/RCTVersion.m.template')
+    .replace('${major}', `@(${major})`)
+    .replace('${minor}', `@(${minor})`)
+    .replace('${patch}', `@(${patch})`)
+    .replace(
+      '${prerelease}',
+      prerelease !== undefined ? `@"${prerelease}"` : '[NSNull null]',
+    ),
+  'utf-8',
+);
+
+fs.writeFileSync(
+  'ReactCommon/cxxreact/ReactNativeVersion.h',
+  cat('scripts/versiontemplates/ReactNativeVersion.h.template')
+    .replace('${major}', major)
+    .replace('${minor}', minor)
+    .replace('${patch}', patch)
+    .replace(
+      '${prerelease}',
+      prerelease !== undefined ? `"${prerelease}"` : '""',
+    ),
+  'utf-8',
+);
+
+fs.writeFileSync(
+  'Libraries/Core/ReactNativeVersion.js',
+  cat('scripts/versiontemplates/ReactNativeVersion.js.template')
+    .replace('${major}', major)
+    .replace('${minor}', minor)
+    .replace('${patch}', patch)
+    .replace(
+      '${prerelease}',
+      prerelease !== undefined ? `'${prerelease}'` : 'null',
+    ),
+  'utf-8',
+);
+
+let packageJson = JSON.parse(cat('package.json'));
+packageJson.version = version;
+delete packageJson.workspaces;
+delete packageJson.private;
+
+// Copy dependencies over from repo-config/package.json
+const repoConfigJson = JSON.parse(cat('repo-config/package.json'));
+packageJson.devDependencies = {
+  ...packageJson.devDependencies,
+  ...repoConfigJson.dependencies,
+};
+// Make react-native-codegen a direct dependency of react-native
+delete packageJson.devDependencies['react-native-codegen'];
+packageJson.dependencies = {
+  ...packageJson.dependencies,
+  'react-native-codegen': repoConfigJson.dependencies['react-native-codegen'],
+};
+fs.writeFileSync('package.json', JSON.stringify(packageJson, null, 2), 'utf-8');
+
+// Change ReactAndroid/gradle.properties
+if (
+  sed(
+    '-i',
+    /^VERSION_NAME=.*/,
+    `VERSION_NAME=${version}`,
+    'ReactAndroid/gradle.properties',
+  ).code
+) {
+  echo("Couldn't update version for Gradle");
+  exit(1);
+}
+
+// Change react-native version in the template's package.json
+exec(`node scripts/set-rn-template-version.js ${version}`);
+
+// Make sure to update ruby version
+if (exec('scripts/update-ruby.sh').code) {
+  echo('Failed to update Ruby version');
+  exit(1);
+}
+
+// Verify that files changed, we just do a git diff and check how many times version is added across files
+const filesToValidate = [
+  'package.json',
+  'ReactAndroid/gradle.properties',
+  'template/package.json',
+];
+const numberOfChangedLinesWithNewVersion = exec(
+  `git diff -U0 ${filesToValidate.join(
+    ' ',
+  )}| grep '^[+]' | grep -c ${version} `,
+  {silent: true},
+).stdout.trim();
+
+if (+numberOfChangedLinesWithNewVersion !== filesToValidate.length) {
+  echo(
+    `Failed to update all the files: [${filesToValidate.join(
+      ', ',
+    )}] must have versions in them`,
+  );
+  echo('Fix the issue and try again');
+  exit(1);
+}
+
+exit(0);