53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
var broccoli = require('broccoli');
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var copyDereferenceSync = require('copy-dereference').sync;
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var fse = require('fs-extra');
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var path = require('path');
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module.exports = broccoliBuild;
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var broccoliExecuted = {};
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/**
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* Integration point to run a broccoli build pipeline under gulp.
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* This is mostly derived from the broccoli-cli
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* @param tree a broccoli tree, obtained by calling `require` on the Brocfile
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* @param outputRoot the path under 'dist' owned exclusively by this Brocfile
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* @returns the promise to return back to gulp
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*/
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function broccoliBuild(tree, outputRoot) {
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if (broccoliExecuted.hasOwnProperty(outputRoot)) {
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throw new Error('The broccoli task can be called only once for outputRoot ' + outputRoot);
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}
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broccoliExecuted[outputRoot] = true;
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var distPath = path.join('dist', outputRoot);
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// We do a clean build every time to avoid stale outputs.
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// Broccoli's cache folders allow it to remain incremental without reading this dir.
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fse.removeSync(distPath);
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fse.mkdirsSync(path.join(distPath, '..'));
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var builder = new broccoli.Builder(tree);
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return builder.build()
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.then(function (hash) {
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var dir = hash.directory;
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try {
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copyDereferenceSync(path.join(dir, outputRoot), distPath);
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} catch (err) {
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if (err.code === 'EEXIST') err.message += ' (we cannot build into an existing directory)';
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throw err;
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}
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})
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.finally(function () {
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builder.cleanup();
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})
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.catch(function (err) {
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// Should show file and line/col if present
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if (err.file) {
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console.error('File: ' + err.file);
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}
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console.error(err.stack);
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console.error('\nBuild failed');
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process.exit(1);
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});
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}
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