Add langfiles build task in gulp (#3331)

* Add build-langfiles to gulp, and add uncompressed + langfiles to build when building all

gulpfile.js

@@ -238,7 +238,7 @@ gulp.task('build-dart', function() {
  *     blockly_uncompressed.js
  */
 gulp.task('build-uncompressed', function() {
-  const header = `// Do not edit this file; automatically generated by build.py.
+  const header = `// Do not edit this file; automatically generated by gulp.
 'use strict';
 
 this.IS_NODE_JS = !!(typeof module !== 'undefined' && module.exports);
@@ -272,9 +272,6 @@ if (this.IS_NODE_JS) {
   this.BLOCKLY_BOOT(this);
   module.exports = Blockly;
 } else {
-  // Delete any existing Closure (e.g. Soy's nogoog_shim).
-  document.write('<script>var goog = undefined;</script>');
-  // Load fresh Closure Library.
   document.write('<script src="' + this.BLOCKLY_DIR +
       '/closure/goog/base.js"></script>');
   document.write('<script>this.BLOCKLY_BOOT(this);</script>');
@@ -286,13 +283,15 @@ if (this.IS_NODE_JS) {
     --root_with_prefix="./core ../core" > ${file}`;
   execSync(cmd, { stdio: 'inherit' });
 
-  const requires = `\n// Load Blockly.\ngoog.require('Blockly.requires');\n`;
+  const requires = `goog.addDependency("base.js", [], []);\n\n// Load Blockly.\ngoog.require('Blockly.requires')\n`;
 
   return gulp.src(file)
     // Remove comments so we're compatible with the build.py script
     .pipe(gulp.replace(/\/\/.*\n/gm, ''))
     // Replace quotes to be compatible with build.py
     .pipe(gulp.replace(/\'(.*\.js)\'/gm, '"$1"'))
+    // Remove last parameter to be compatible with build.py
+    .pipe(gulp.replace(/, \{\}\);/gm, ');'))
     // Find the Blockly directory name and replace it with a JS variable.
     // This allows blockly_uncompressed.js to be compiled on one computer and be
     // used on another, even if the directory name differs.
@@ -301,6 +300,35 @@ if (this.IS_NODE_JS) {
     .pipe(gulp.dest('./'));
 });
 
+/**
+ * This task builds Blockly's lang files.
+ *     msg/*.js
+ */
+gulp.task('build-langfiles', function(done) {
+  // Run js_to_json.py
+  const jsToJsonCmd = `python ./i18n/js_to_json.py \
+--input_file ${path.join('msg', 'messages.js')} \
+--output_dir ${path.join('msg', 'json')} \
+--quiet`;
+  execSync(jsToJsonCmd, { stdio: 'inherit' });
+
+  // Run create_messages.py
+  let json_files = fs.readdirSync(path.join('msg', 'json'));
+  json_files = json_files.filter(file => file.endsWith('json') &&
+    !(new RegExp(/(keys|synonyms|qqq|constants)\.json$/).test(file)));
+  json_files = json_files.map(file => path.join('msg', 'json', file));
+  const createMessagesCmd = `python ./i18n/create_messages.py \
+  --source_lang_file ${path.join('msg', 'json', 'en.json')} \
+  --source_synonym_file ${path.join('msg', 'json', 'synonyms.json')} \
+  --source_constants_file ${path.join('msg', 'json', 'constants.json')} \
+  --key_file ${path.join('msg', 'json', 'keys.json')} \
+  --output_dir ${path.join('msg', 'js')} \
+  --quiet ${json_files.join(' ')}`;
+    execSync(createMessagesCmd, { stdio: 'inherit' });
+
+  done();
+});
+
 /**
  * This task builds all of Blockly:
  *     blockly_compressed.js
@@ -310,6 +338,8 @@ if (this.IS_NODE_JS) {
  *     php_compressed.js
  *     lua_compressed.js
  *     dart_compressed.js
+ *     blockly_uncompressed.js
+ *     msg/json/*.js
  */
 gulp.task('build', gulp.parallel(
   'build-core',
@@ -318,7 +348,9 @@ gulp.task('build', gulp.parallel(
   'build-python',
   'build-php',
   'build-lua',
-  'build-dart'
+  'build-dart',
+  'build-uncompressed',
+  'build-langfiles'
 ));
 
 ////////////////////////////////////////////////////////////

package.json

@@ -18,7 +18,11 @@
   },
   "scripts": {
     "build": "gulp build",
+    "build:blocks": "gulp build-blocks",
+    "build:core": "gulp build-core",
     "build:debug": "gulp build-core --verbose > build-debug.log 2>&1 && tail -3 -r build-debug.log",
+    "build:langfiles": "gulp build-langfiles",
+    "build:uncompressed": "gulp build-uncompressed",
     "bump": "npm version 3.$(date +'%Y%m%d').0",
     "lint": "eslint .",
     "package": "gulp package",