initial commit

node_modules/gulp-sourcemaps/src/init/index.internals.js

@@ -0,0 +1,128 @@
+'use strict';
+
+var utils = require('../utils');
+var rootDebug = require('../debug');
+var convert = require('convert-source-map');
+var stripBom = require('strip-bom-string');
+var urlRegex = utils.urlRegex;
+var fs = require('graceful-fs');
+var path = require('path');
+var unixStylePath = utils.unixStylePath;
+var exceptionToString = utils.exceptionToString;
+
+module.exports = function(options, file, fileContent) {
+
+  function loadMaps() {
+
+    var sources = {
+      path: '',
+      map: null,
+      content: fileContent,
+      preExistingComment: null
+    };
+
+    _getInlineSources(sources);
+    if (!sources.map) // ahh not inline, so try file
+      _getFileSources(sources);
+
+    _fixSources(sources);
+
+    return sources;
+  }
+
+  function _fixSources(sources) {
+    var debug = rootDebug.spawn('init:internals:loadMaps:_fixSources');
+
+    // fix source paths and sourceContent for imported source map
+    if (sources.map) {
+      sources.map.sourcesContent = sources.map.sourcesContent || [];
+      sources.map.sources.forEach(function(source, i) {
+        if (source.match(urlRegex)) {
+          sources.map.sourcesContent[i] = sources.map.sourcesContent[i] || null;
+          return;
+        }
+        var absPath = path.resolve(sources.path, source);
+        sources.map.sources[i] = unixStylePath(path.relative(file.base, absPath));
+
+        if (!sources.map.sourcesContent[i]) {
+          var sourceContent = null;
+          if (sources.map.sourceRoot) {
+            if (sources.map.sourceRoot.match(urlRegex)) {
+              sources.map.sourcesContent[i] = null;
+              return;
+            }
+            absPath = path.resolve(sources.path, sources.map.sourceRoot, source);
+          }
+
+          // if current file: use content
+          if (absPath === file.path) {
+            sourceContent = sources.content;
+          } else { //attempt load content from file
+            try {
+              debug(function() { return 'No source content for "' + source + '". Loading from file.'; });
+              sourceContent = stripBom(fs.readFileSync(absPath, 'utf8'));
+            } catch (e) {
+              debug(function() { return 'warn: source file not found: ' + absPath; });
+            }
+          }
+          sources.map.sourcesContent[i] = sourceContent;
+        }
+
+      });
+      // remove source map comment from source
+      file.contents = new Buffer(sources.content, 'utf8');
+    }
+
+  }
+
+  function _getInlineSources(sources) {
+    var debug = rootDebug.spawn('init:internals:loadMaps:_getInlineSources');
+
+    sources.preExistingComment = utils.getInlinePreExisting(sources.content);
+    // Try to read inline source map
+    sources.map = convert.fromSource(sources.content, options.largeFile);
+
+    if (!sources.map)
+      return sources;
+
+    sources.map = sources.map.toObject();
+    // sources in map are relative to the source file
+    sources.path = path.dirname(file.path);
+    if (!options.largeFile) {
+      debug('comment REMOVED');
+      sources.content = convert.removeComments(sources.content);
+    }
+  }
+
+  function _getFileSources(sources) {
+    var debug = rootDebug.spawn('init:internals:loadMaps:_getFileSources');
+
+    // look for source map comment referencing a source map file
+    var mapComment = convert.mapFileCommentRegex.exec(sources.content);
+
+    var mapFile;
+    if (mapComment) {
+      sources.preExistingComment = mapComment[1] || mapComment[2];
+      mapFile = path.resolve(path.dirname(file.path), sources.preExistingComment);
+      sources.content = convert.removeMapFileComments(sources.content);
+      // if no comment try map file with same name as source file
+    } else {
+      mapFile = file.path + '.map';
+    }
+
+    // sources in external map are relative to map file
+    sources.path = path.dirname(mapFile);
+
+    try {
+      sources.map = JSON.parse(stripBom(fs.readFileSync(mapFile, 'utf8')));
+    } catch (e) {
+      debug(function() { 
+        return 'warn: external source map not found or invalid: ' + mapFile + ' ' + exceptionToString(e);
+      });
+    }
+  }
+
+  return {
+    loadMaps: loadMaps
+  };
+};

node_modules/gulp-sourcemaps/src/init/index.js

@@ -0,0 +1,141 @@
+'use strict';
+var utils = require('../utils');
+var unixStylePath = utils.unixStylePath;
+var through = require('through2');
+var path = require('path');
+var acorn = require('acorn');
+var SourceMapGenerator = require('source-map').SourceMapGenerator;
+var css = require('css');
+var initInternals = require('./index.internals');
+
+/**
+ * Initialize source mapping chain
+ */
+function init(options) {
+  var debug = require('../debug').spawn('init');
+
+  function sourceMapInit(file, encoding, callback) {
+    /*jshint validthis:true */
+
+    // pass through if file is null or already has a source map
+    if (file.isNull() || file.sourceMap) {
+      this.push(file);
+      return callback();
+    }
+
+    if (file.isStream()) {
+      return callback(new Error(utils.PLUGIN_NAME + '-init: Streaming not supported'));
+    }
+
+    if (options === undefined) {
+      options = {};
+    }
+    debug(function() {
+      return options;
+    });
+
+    var fileContent = file.contents.toString();
+    var sourceMap, preExistingComment;
+    var internals = initInternals(options, file, fileContent);
+
+    if (options.loadMaps) {
+      var result = internals.loadMaps();
+      sourceMap = result.map;
+      fileContent = result.content;
+      preExistingComment = result.preExistingComment;
+    }
+
+    if (!sourceMap && options.identityMap) {
+      debug(function() { return '**identityMap option is deprecated, update to use sourcemap.identityMap stream**'; });
+      debug(function() {
+        return 'identityMap';
+      });
+      var fileType = path.extname(file.path);
+      var source = unixStylePath(file.relative);
+      var generator = new SourceMapGenerator({file: source});
+
+      if (fileType === '.js') {
+        var tokenizer = acorn.tokenizer(fileContent, {locations: true});
+        while (true) {
+          var token = tokenizer.getToken();
+          if (token.type.label === "eof")
+            break;
+          var mapping = {
+            original: token.loc.start,
+            generated: token.loc.start,
+            source: source
+          };
+          if (token.type.label === 'name') {
+            mapping.name = token.value;
+          }
+          generator.addMapping(mapping);
+        }
+        generator.setSourceContent(source, fileContent);
+        sourceMap = generator.toJSON();
+
+      } else if (fileType === '.css') {
+        debug('css');
+        var ast = css.parse(fileContent, {silent: true});
+        debug(function() {
+          return ast;
+        });
+        var registerTokens = function(ast) {
+          if (ast.position) {
+            generator.addMapping({original: ast.position.start, generated: ast.position.start, source: source});
+          }
+
+          function logAst(key, ast) {
+            debug(function() {
+              return 'key: ' + key;
+            });
+            debug(function() {
+              return ast[key];
+            });
+          }
+
+          for (var key in ast) {
+            logAst(key, ast);
+            if (key !== "position") {
+              if (Object.prototype.toString.call(ast[key]) === '[object Object]') {
+                registerTokens(ast[key]);
+              } else if (Array.isArray(ast[key])) {
+                debug(function() {
+                  return "@@@@ ast[key] isArray @@@@";
+                });
+                for (var i = 0; i < ast[key].length; i++) {
+                  registerTokens(ast[key][i]);
+                }
+              }
+            }
+          }
+        };
+        registerTokens(ast);
+        generator.setSourceContent(source, fileContent);
+        sourceMap = generator.toJSON();
+      }
+    }
+
+    if (!sourceMap) {
+      // Make an empty source map
+      sourceMap = {
+        version: 3,
+        names: [],
+        mappings: '',
+        sources: [unixStylePath(file.relative)],
+        sourcesContent: [fileContent]
+      };
+    }
+    else if(preExistingComment !== null && typeof preExistingComment !== 'undefined')
+      sourceMap.preExistingComment = preExistingComment;
+
+    sourceMap.file = unixStylePath(file.relative);
+    file.sourceMap = sourceMap;
+
+    this.push(file);
+    callback();
+  }
+
+  return through.obj(sourceMapInit);
+}
+
+module.exports = init;