135 lines
3.3 KiB
JavaScript
135 lines
3.3 KiB
JavaScript
'use strict';
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var gutil = require('gulp-util');
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var through = require('through2');
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var assign = require('object-assign');
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var path = require('path');
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var sass = require('node-sass');
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var applySourceMap = require('vinyl-sourcemaps-apply');
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var PLUGIN_NAME = 'gulp-sass';
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//////////////////////////////
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// Main Gulp Sass function
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//////////////////////////////
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var gulpSass = function gulpSass(options, sync) {
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return through.obj(function(file, enc, cb) {
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var opts,
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ip,
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filePush,
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errorM,
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callback,
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result;
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if (file.isNull()) {
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return cb(null, file);
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}
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if (file.isStream()) {
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return cb(new gutil.PluginError(PLUGIN_NAME, 'Streaming not supported'));
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}
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if (path.basename(file.path).indexOf('_') === 0) {
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return cb();
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}
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opts = assign({}, options);
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opts.data = file.contents.toString();
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if (opts.includePaths) {
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if (typeof opts.includePaths === 'string') {
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ip = opts.includePaths;
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opts.includePaths = [];
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opts.includePaths.push(ip);
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}
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}
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else {
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opts.includePaths = [];
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}
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opts.includePaths.push(path.dirname(file.path));
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// Generate Source Maps if plugin source-map present
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if (file.sourceMap) {
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opts.sourceMap = file.path;
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opts.omitSourceMapUrl = true;
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}
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//////////////////////////////
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// Handles returning the file to the stream
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//////////////////////////////
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filePush = function filePush(sassObj) {
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// Build Source Maps!
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if (sassObj.map) {
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applySourceMap(file, JSON.parse(sassObj.map.toString()));
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}
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file.contents = sassObj.css;
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file.path = gutil.replaceExtension(file.path, '.css');
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cb(null, file);
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};
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//////////////////////////////
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// Handles error message
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//////////////////////////////
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errorM = function errorM(error) {
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var relativePath = '',
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filePath = error.file === 'stdin' ? file.path : error.file,
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message = '';
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filePath = filePath ? filePath : file.path;
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relativePath = path.relative(process.cwd(), filePath);
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message += gutil.colors.underline(relativePath) + '\n';
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message += gutil.colors.gray(' ' + error.line + ':' + error.column) + ' ';
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message += error.message;
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return cb(new gutil.PluginError(
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PLUGIN_NAME, message
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));
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};
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if (sync !== true) {
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//////////////////////////////
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// Async Sass render
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//////////////////////////////
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callback = function(error, obj) {
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if (error) {
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return errorM(error);
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}
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filePush(obj);
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};
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sass.render(opts, callback);
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}
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else {
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//////////////////////////////
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// Sync Sass render
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//////////////////////////////
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try {
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result = sass.renderSync(opts);
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filePush(result);
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}
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catch(error) {
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return errorM(error);
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}
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}
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});
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};
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//////////////////////////////
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// Sync Sass render
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//////////////////////////////
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gulpSass.sync = function sync(options) {
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return gulpSass(options, true);
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};
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//////////////////////////////
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// Log errors nicely
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//////////////////////////////
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gulpSass.logError = function logError(error) {
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gutil.log(gutil.colors.red('[' + PLUGIN_NAME + '] ') + error.message);
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};
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module.exports = gulpSass;
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