82 lines
2.1 KiB
JavaScript
82 lines
2.1 KiB
JavaScript
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'use strict';
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var path = require('path'),
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detectNewline = require('detect-newline');
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function unixStylePath(filePath) {
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return filePath.split(path.sep).join('/');
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}
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var PLUGIN_NAME = require('../package.json').name;
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var urlRegex = /^(https?|webpack(-[^:]+)?):\/\//;
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var debug = require('debug-fabulous')()(PLUGIN_NAME + ':utils');
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/*
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So reusing the same ref for a regex (with global (g)) is from a poor decision in js.
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See http://stackoverflow.com/questions/10229144/bug-with-regexp-in-javascript-when-do-global-search
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So we either need to use a new instance of a regex everywhere.
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*/
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var sourceMapUrlRegEx = function(){ return /\/\/\# sourceMappingURL\=.*/g;};
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var getCommentFormatter = function (file) {
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var extension = file.relative.split('.').pop(),
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fileContents = file.contents.toString(),
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newline = detectNewline.graceful(fileContents || ''),
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commentFormatter = function(url) {
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return '';
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};
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if (file.sourceMap.preExistingComment){
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debug(logCb('preExistingComment commentFormatter'));
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commentFormatter = function(url) {
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return "//# sourceMappingURL=" + url + newline;
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};
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return commentFormatter;
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}
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switch (extension) {
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case 'css':
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debug(logCb('css commentFormatter'));
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commentFormatter = function(url) {
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return newline + "/*# sourceMappingURL=" + url + " */" + newline;
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};
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break;
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case 'js':
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debug(logCb('js commentFormatter'));
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commentFormatter = function(url) {
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return newline + "//# sourceMappingURL=" + url + newline;
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};
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break;
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default:
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debug(logCb('unknown commentFormatter'));
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}
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return commentFormatter;
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};
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var getInlinePreExisting = function(fileContent){
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if(sourceMapUrlRegEx().test(fileContent)){
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debug(logCb('has preExisting'));
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return fileContent.match(sourceMapUrlRegEx())[0];
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}
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};
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function logCb(toLog){
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return function() {
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return toLog;
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};
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}
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module.exports = {
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unixStylePath: unixStylePath,
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PLUGIN_NAME: PLUGIN_NAME,
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urlRegex: urlRegex,
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sourceMapUrlRegEx: sourceMapUrlRegEx,
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getCommentFormatter: getCommentFormatter,
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getInlinePreExisting: getInlinePreExisting,
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logCb: logCb
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};
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