62 lines
1.8 KiB
JavaScript
62 lines
1.8 KiB
JavaScript
'use strict';
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var through = require('through2');
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var compiler = require('./index');
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var path = require('path');
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module.exports = gulpTraceur;
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gulpTraceur.RUNTIME_PATH = compiler.RUNTIME_PATH;
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gulpTraceur.sourcesChanged = compiler.sourcesChanged;
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function gulpTraceur(options, resolveModuleName) {
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options = options || {};
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return through.obj(function (file, enc, done) {
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if (file.isNull()) {
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done();
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return;
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}
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if (file.isStream()) {
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throw new Error('gulp-traceur: Streaming not supported');
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}
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try {
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var originalFilePath = file.history[0];
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var moduleName = resolveModuleName ? resolveModuleName(file.relative) : null;
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var result = compiler.compile(options, {
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inputPath: originalFilePath,
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outputPath: file.relative,
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moduleName: moduleName
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}, file.contents.toString());
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var transpiledContent = result.js;
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var sourceMap = result.sourceMap;
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if (sourceMap) {
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var sourceMapFile = cloneFile(file, {
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path: file.path.replace(/\.\w+$/, '.map'),
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contents: JSON.stringify(sourceMap)
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});
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transpiledContent += '\n//# sourceMappingURL=./' + path.basename(sourceMapFile.path);
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this.push(sourceMapFile);
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}
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this.push(cloneFile(file, {contents: transpiledContent}));
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done();
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} catch (errors) {
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if (errors.join) {
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throw new Error('gulp-traceur:\n ' + errors.join('\n '));
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} else {
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console.error('Error when transpiling:\n ' + originalFilePath);
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throw errors;
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}
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}
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});
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};
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function cloneFile(file, override) {
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var File = file.constructor;
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return new File({path: override.path || file.path, cwd: override.cwd || file.cwd, contents: new Buffer(override.contents || file.contents), base: override.base || file.base});
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}
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