62 lines
1.4 KiB
JavaScript
62 lines
1.4 KiB
JavaScript
'use strict';
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var path = require('path');
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var PluginError = require('plugin-error');
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var through = require('through2');
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var applySourceMap = require('vinyl-sourcemaps-apply');
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var objectAssign = require('object-assign');
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var replaceExt = require('replace-ext');
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var babel = require('babel-core');
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function replaceExtension(fp) {
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return path.extname(fp) ? replaceExt(fp, '.js') : fp;
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}
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module.exports = function (opts) {
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opts = opts || {};
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return through.obj(function (file, enc, cb) {
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if (file.isNull()) {
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cb(null, file);
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return;
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}
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if (file.isStream()) {
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cb(new PluginError('gulp-babel', 'Streaming not supported'));
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return;
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}
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try {
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var fileOpts = objectAssign({}, opts, {
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filename: file.path,
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filenameRelative: file.relative,
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sourceMap: Boolean(file.sourceMap),
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sourceFileName: file.relative,
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sourceMapTarget: file.relative
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});
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var res = babel.transform(file.contents.toString(), fileOpts);
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if (file.sourceMap && res.map) {
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res.map.file = replaceExtension(res.map.file);
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applySourceMap(file, res.map);
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}
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if (!res.ignored) {
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file.contents = new Buffer(res.code);
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file.path = replaceExtension(file.path);
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}
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file.babel = res.metadata;
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this.push(file);
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} catch (err) {
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this.emit('error', new PluginError('gulp-babel', err, {
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fileName: file.path,
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showProperties: false
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}));
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}
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cb();
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});
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};
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