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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| /** | ||
| * Copyright 2015 The AMP HTML Authors. All Rights Reserved. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
|
|
||
| var closureCompiler = require('gulp-closure-compiler'); | ||
| var gulp = require('gulp'); | ||
| var rename = require('gulp-rename'); | ||
| var uglify = require('gulp-uglify'); | ||
|
|
||
| // Compiles AMP with the closure compiler. This is intended only for | ||
| // production use. During development we intent to continue using | ||
| // babel, as it has much faster incremental compilation. | ||
| // This currently only works for the main AMP JS binary, but should be | ||
| // straight forward to extend to the rest of our code base. | ||
| gulp.task('compile', function() { | ||
| /*eslint "google-camelcase/google-camelcase": 0*/ | ||
| return gulp.src([ | ||
| 'ads/**/*.js', | ||
| 'extensions/**/*.js', | ||
| 'build/css.js', | ||
| 'src/**/*.js', | ||
| // We do not want to load the entry point that loads the babel helpers. | ||
| '!src/amp-babel.js', | ||
| 'builtins/**.js', | ||
| 'third_party/caja/html-sanitizer.js', | ||
| 'third_party/closure-library/sha384-generated.js', | ||
| 'third_party/mustache/**/*.js', | ||
| 'node_modules/document-register-element/build/' + | ||
| 'document-register-element.max.js', | ||
| 'node_modules/core-js/modules/**.js', | ||
| // Not sure what these files are, but they seem to duplicate code | ||
| // one level below and confuse the compiler. | ||
| '!node_modules/core-js/modules/library/**.js', | ||
| // Don't include tests. | ||
| '!**_test.js', | ||
| '!**/test-*.js', | ||
| ]) | ||
| .pipe(closureCompiler({ | ||
| // Temporary shipping with our own compiler that has a single patch | ||
| // applied | ||
| compilerPath: 'third_party/closure-compiler/compiler.jar', | ||
| fileName: 'build/cc-amp.js', | ||
| compilerFlags: { | ||
| // Transpile from ES6 to ES5. | ||
| language_in: 'ECMASCRIPT6', | ||
| language_out: 'ECMASCRIPT5', | ||
| js_module_root: 'node_modules/', | ||
| common_js_entry_module: 'src/amp.js', | ||
| process_common_js_modules: true, | ||
| // This strips all files from the input set that aren't explicitly | ||
| // required. | ||
| only_closure_dependencies: true, | ||
| output_wrapper: '(function(){var process={env:{}};%output%})();' | ||
| } | ||
| })) | ||
| .on('error', function(err) { | ||
| if (/0 error\(s\)/.test(err.message)) { | ||
| // emit warning | ||
| console./*OK*/warn(err.message); | ||
| this.emit('end'); | ||
| } else { | ||
| throw err; | ||
| } | ||
| }) | ||
| .on('end', function() { | ||
| console./*OK*/log('Minify closure compiler result'); | ||
| // Somewhat ironically we use uglify to further minify the result. | ||
| // This is needed because we currently use only very basic optimizations | ||
| // in closure compiler and it doesn't minify global variables at this | ||
| // stage. | ||
| return gulp.src(['build/cc-amp.js']) | ||
| .pipe(uglify({ | ||
| preserveComments: 'some' | ||
| })) | ||
| .pipe(rename('cc-v0.js')) | ||
| .pipe(gulp.dest('dist')) | ||
| }); | ||
| }); |
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