45 lines
1.5 KiB
TypeScript
45 lines
1.5 KiB
TypeScript
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var fs = require('fs');
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var fse = require('fs-extra');
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var path = require('path');
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var traceur = require('../../transpiler');
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var walkSync = require('walk-sync');
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var Writer = require('broccoli-writer');
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var xtend = require('xtend');
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class TraceurFilter extends Writer {
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constructor(private inputTree, private options = {}) {}
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write(readTree, destDir) {
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return readTree(this.inputTree)
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.then(srcDir => {
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walkSync(srcDir)
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.filter(filepath => {
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var extension = path.extname(filepath).toLowerCase();
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return extension === '.js' || extension === '.es6';
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})
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.map(filepath => {
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var options = xtend({filename: filepath}, this.options);
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var fsOpts = {encoding: 'utf-8'};
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var sourcecode = fs.readFileSync(path.join(srcDir, filepath), fsOpts);
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var result = traceur.compile(options, filepath, sourcecode);
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result.js = result.js + '\n//# sourceMappingURL=./' + path.basename(filepath).replace(/\.\w+$/, '.map');
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var destFilepath = filepath.replace(/\.\w+$/, '.es6');
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var destFile = path.join(destDir, destFilepath);
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fse.mkdirsSync(path.dirname(destFile));
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var destMap = path.join(destDir, filepath + '.map');
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fs.writeFileSync(destFile, result.js, fsOpts);
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result.sourceMap.file = destFilepath;
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fs.writeFileSync(destMap, JSON.stringify(result.sourceMap), fsOpts);
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});
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});
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}
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}
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module.exports = TraceurFilter;
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