move version number to build-utils

Summary:
* The generation of the version number is moved to build-utils so it can be used from the headless build process as well.
* The prelude script for the headless version exposes the version number on `global.__VERSION__`
* While at this file, moving some functions in the build process to use the Sync version. Doesn't matter for the build process anyways and the syntax is much nicer.

Reviewed By: passy

Differential Revision: D13843678

fbshipit-source-id: 7df8364044ab6ebc83a4060aab2e3a42ae48a934

scripts/build-headless.js

@@ -12,15 +12,15 @@ const {
   buildFolder,
   compile,
   compileDefaultPlugins,
+  getVersionNumber,
 } = require('./build-utils.js');
 
-function preludeBundle(dir) {
+function preludeBundle(dir, versionNumber) {
   return new Promise((resolve, reject) =>
     lineReplace({
       file: path.join(dir, 'bundle.js'),
       line: 1,
-      text:
-        'var __DEV__=false; global.electronRequire = require; global.performance = require("perf_hooks").performance;',
+      text: `var __DEV__=false; global.electronRequire = require; global.performance = require("perf_hooks").performance;global.__VERSION__="${versionNumber}";`,
       addNewLine: true,
       callback: resolve,
     }),
@@ -56,7 +56,8 @@ function preludeBundle(dir) {
   // eslint-disable-next-line no-console
   console.log('Created build directory', buildDir);
   await compile(buildDir, path.join(__dirname, '..', 'headless', 'index.js'));
-  await preludeBundle(buildDir);
+  const versionNumber = getVersionNumber();
+  await preludeBundle(buildDir, versionNumber);
   await compileDefaultPlugins(path.join(distDir, 'plugins'));
   await createBinary([
     path.join(buildDir, 'bundle.js'),

scripts/build-release.js

@@ -13,6 +13,7 @@ const {
   compile,
   die,
   compileDefaultPlugins,
+  getVersionNumber,
 } = require('./build-utils.js');
 
 function generateManifest(versionNumber) {
@@ -29,7 +30,7 @@ function generateManifest(versionNumber) {
   );
 }
 
-function modifyPackageManifest(buildFolder) {
+function modifyPackageManifest(buildFolder, versionNumber) {
   // eslint-disable-next-line no-console
   console.log('Creating package.json manifest');
   const manifest = require('../package.json');
@@ -40,28 +41,11 @@ function modifyPackageManifest(buildFolder) {
   // because all dependencies from the root-folder are already bundled by metro.
   manifest.dependencies = manifestStatic.dependencies;
   manifest.main = 'index.js';
-
-  const buildNumber = process.argv.join(' ').match(/--version=(\d+)/);
-  if (buildNumber && buildNumber.length > 0) {
-    manifest.version = [
-      ...manifest.version.split('.').slice(0, 2),
-      buildNumber[1],
-    ].join('.');
-  }
-
-  return new Promise((resolve, reject) => {
-    fs.writeFile(
-      path.join(buildFolder, 'package.json'),
-      JSON.stringify(manifest, null, '  '),
-      err => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(manifest.version);
-        }
-      },
-    );
-  }).catch(die);
+  manifest.version = versionNumber;
+  fs.writeFileSync(
+    path.join(buildFolder, 'package.json'),
+    JSON.stringify(manifest, null, '  '),
+  );
 }
 
 function buildDist(buildFolder) {
@@ -112,32 +96,20 @@ function buildDist(buildFolder) {
 }
 
 function copyStaticFolder(buildFolder) {
-  return new Promise((resolve, reject) => {
-    fs.copy(
-      path.join(__dirname, '..', 'static'),
-      buildFolder,
-      {
-        dereference: true,
-      },
-      err => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve();
-        }
-      },
-    );
-  }).catch(die);
+  fs.copySync(path.join(__dirname, '..', 'static'), buildFolder, {
+    dereference: true,
+  });
 }
 
 (async () => {
   const dir = await buildFolder();
   // eslint-disable-next-line no-console
   console.log('Created build directory', dir);
-  await copyStaticFolder(dir);
+  copyStaticFolder(dir);
   await compileDefaultPlugins(path.join(dir, 'defaultPlugins'));
   await compile(dir, path.join(__dirname, '..', 'src', 'init.js'));
-  const versionNumber = await modifyPackageManifest(dir);
+  const versionNumber = getVersionNumber();
+  modifyPackageManifest(dir, versionNumber);
   generateManifest(versionNumber);
   await buildDist(dir);
   // eslint-disable-next-line no-console

scripts/build-utils.js

@@ -86,9 +86,19 @@ function buildFolder() {
   }).catch(die);
 }
 
+function getVersionNumber() {
+  let {version} = require('../package.json');
+  const buildNumber = process.argv.join(' ').match(/--version=(\d+)/);
+  if (buildNumber && buildNumber.length > 0) {
+    version = [...version.split('.').slice(0, 2), buildNumber[1]].join('.');
+  }
+  return version;
+}
+
 module.exports = {
   buildFolder,
   compile,
   die,
   compileDefaultPlugins,
+  getVersionNumber,
 };