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Use Java version of Google Closure Compiler (#12800)
* makes closure compiler threaded * Dans PR with a closure compiler java version * Remove unused dep * Pin GCC * Prettier * Nit rename * Fix error handling * Name plugins consistently * Fix lint * Maybe this works? * or this * AppVeyor * Fix lint
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| 'use strict'; | ||
|
|
||
| const ClosureCompiler = require('google-closure-compiler').compiler; | ||
| const {promisify} = require('util'); | ||
| const fs = require('fs'); | ||
| const tmp = require('tmp'); | ||
| const writeFileAsync = promisify(fs.writeFile); | ||
|
|
||
| function compile(flags) { | ||
| return new Promise((resolve, reject) => { | ||
| const closureCompiler = new ClosureCompiler(flags); | ||
| closureCompiler.run(function(exitCode, stdOut, stdErr) { | ||
| if (!stdErr) { | ||
| resolve(stdOut); | ||
| } else { | ||
| reject(new Error(stdErr)); | ||
| } | ||
| }); | ||
| }); | ||
| } | ||
|
|
||
| module.exports = function closure(flags = {}) { | ||
| return { | ||
| name: 'scripts/rollup/plugins/closure-plugin', | ||
| async transformBundle(code) { | ||
| const inputFile = tmp.fileSync(); | ||
| const tempPath = inputFile.name; | ||
| flags = Object.assign({}, flags, {js: tempPath}); | ||
| await writeFileAsync(tempPath, code, 'utf8'); | ||
| const compiledCode = await compile(flags); | ||
| inputFile.removeCallback(); | ||
| return {code: compiledCode}; | ||
| }, | ||
| }; | ||
| }; |
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