26. 'use strict';
var gutil = require('gulp-util');
var through = require('through2');
var assign = require('object-assign');
var path = require('path');
var applySourceMap = require('vinyl-sourcemaps-apply');
var PLUGIN_NAME = 'gulp-sass';
//////////////////////////////
// Main Gulp Sass function
//////////////////////////////
var gulpSass = function gulpSass(options, sync) {
return through.obj(function (file, enc, cb) {
var opts,
filePush,
errorM,
callback,
result;
if (file.isNull()) {
return cb(null, file);
}
if (file.isStream()) {
return cb(new gutil.PluginError(PLUGIN_NAME, 'Streaming not supported'));
}
if (path.basename(file.path).indexOf('_') === 0) {
return cb();
}
if (!file.contents.length) {
file.path = gutil.replaceExtension(file.path, '.css');
return cb(null, file);
}
opts = assign({}, options);
opts.data = file.contents.toString();
// Ensure `indentedSyntax` is true if a `.sass` file
if (path.extname(file.path) === '.sass') {
opts.indentedSyntax = true;
}
// Ensure file's parent directory in the include path
if (opts.includePaths) {
if (typeof opts.includePaths === 'string') {
opts.includePaths = [opts.includePaths];
}
}
else {
opts.includePaths = [];
}
opts.includePaths.unshift(path.dirname(file.path));
// Generate Source Maps if plugin source-map present
if (file.sourceMap) {
opts.sourceMap = file.path;
opts.omitSourceMapUrl = true;
opts.sourceMapContents = true;
}
//////////////////////////////
// Handles returning the file to the stream
//////////////////////////////
filePush = function filePush(sassObj) {
var sassMap,
sassMapFile,
sassFileSrc,
sassFileSrcPath,
sourceFileIndex,
filteredSources;
// Build Source Maps!
if (sassObj.map) {
// Transform map into JSON
sassMap = JSON.parse(sassObj.map.toString());
// Grab the stdout and transform it into stdin
sassMapFile = sassMap.file.replace('stdout', 'stdin');
// Grab the base file name that's being worked on
sassFileSrc = file.relative;
// Grab the path portion of the file that's being worked on
sassFileSrcPath = path.dirname(sassFileSrc);
if (sassFileSrcPath) {
//Prepend the path to all files in the sources array except the file that's being worked on
gulp-sass → 185行