Fixing issue #2923 - Getting mode from file extension won't always work

.gitignore

@@ -19,4 +19,7 @@ src/extensions/disabled
 
 # unit test working directory
 test/temp
-test/results
+test/results
+
+# Netbeans
+/nbproject

src/document/DocumentManager.js

@@ -952,8 +952,7 @@ define(function (require, exports, module) {
      */
     Document.prototype._updateLanguage = function () {
         var oldLanguage = this.language;
-        var ext = PathUtils.filenameExtension(this.file.fullPath);
-        this.language = LanguageManager.getLanguageForFileExtension(ext);
+        this.language = LanguageManager.getLanguageForPath(this.file.fullPath);
 
         if (oldLanguage && oldLanguage !== this.language) {
             $(this).triggerHandler("languageChanged", [oldLanguage, this.language]);

src/editor/Editor.js

@@ -1214,7 +1214,7 @@ define(function (require, exports, module) {
      *
      * @return {?(Object|string)} Name of syntax-highlighting mode, or object containing a "name" property
      *     naming the mode along with configuration options required by the mode. 
-     *     See {@link LanguageManager#getLanguageForFileExtension()} and {@link Language#getMode()}.
+     *     See {@link LanguageManager#getLanguageForPath()} and {@link Language#getMode()}.
      */
     Editor.prototype.getModeForSelection = function () {
         // Check for mixed mode info
@@ -1247,7 +1247,7 @@ define(function (require, exports, module) {
     /**
      * Gets the syntax-highlighting mode for the document.
      *
-     * @return {Object|String} Object or Name of syntax-highlighting mode; see {@link LanguageManager#getLanguageForFileExtension()} and {@link Language#getMode()}.
+     * @return {Object|String} Object or Name of syntax-highlighting mode; see {@link LanguageManager#getLanguageForPath()} and {@link Language#getMode()}.
      */
     Editor.prototype.getModeForDocument = function () {
         return this._codeMirror.getOption("mode");

src/extensions/default/JavaScriptCodeHints/ScopeManager.js

@@ -440,7 +440,7 @@ define(function (require, exports, module) {
                         file    = split.file;
 
                     if (file.indexOf(".") > 1) { // ignore /.dotfiles
-                        var mode = LanguageManager.getLanguageForFileExtension(entry.fullPath).getMode();
+                        var mode = LanguageManager.getLanguageForPath(entry.fullPath).getMode();
                         if (mode === HintUtils.MODE_NAME) {
                             DocumentManager.getDocumentForPath(path).done(function (document) {
                                 refreshOuterScope(dir, file, document.getText());

src/language/LanguageManager.js

@@ -95,6 +95,7 @@ define(function (require, exports, module) {
         _pendingLanguages           = {},
         _languages                  = {},
         _fileExtensionToLanguageMap = {},
+        _fileNameToLanguageMap      = {},
         _modeToLanguageMap          = {},
         _ready;
 
@@ -178,16 +179,19 @@ define(function (require, exports, module) {
     }
 
     /**
-     * Resolves a file extension to a Language object.
-     * @param {!string} path Path to or extension of the file to find a language for
+     * Resolves a file path to a Language object.
+     * @param {!string} path Path to the file to find a language for
      * @return {Language} The language for the provided file type or the fallback language
      */
-    function getLanguageForFileExtension(path) {
+    function getLanguageForPath(path) {
         var extension = _normalizeFileExtension(PathUtils.filenameExtension(path)),
-            language  = _fileExtensionToLanguageMap[extension];
+            filename  = PathUtils.filename(path),
+            language  = extension ? _fileExtensionToLanguageMap[extension] 
+                                  : _fileNameToLanguageMap[filename];
 
         if (!language) {
-            console.log("Called LanguageManager.getLanguageForFileExtension with an unhandled file extension:", extension);
+            extension ? console.log("Called LanguageManager.getLanguageForPath with an unhandled file extension:", extension)
+                      : console.log("Called LanguageManager.getLanguageForPath with an unhandled file name:", filename);
         }
 
         return language || _fallbackLanguage;
@@ -233,6 +237,7 @@ define(function (require, exports, module) {
         this._name = name;
 
         this._fileExtensions    = [];
+        this._fileNames         = [];
         this._modeToLanguageMap = {};
     }
 
@@ -249,6 +254,9 @@ define(function (require, exports, module) {
     /** @type {Array.<string>} File extensions that use this language */
     Language.prototype._fileExtensions = null;
 
+    /** @type {Array.<string>} File names for extensionless files that use this language */
+    Language.prototype._fileNames = null;
+
     /** @type {{ prefix: string }} Line comment syntax */
     Language.prototype._lineCommentSyntax = null;
 
@@ -351,6 +359,15 @@ define(function (require, exports, module) {
         // Use concat to create a copy of this array, preventing external modification
         return this._fileExtensions.concat();
     };
+
+    /**
+     * Returns an array of file names for extensionless files that use this language.
+     * @return {Array.<string>} Extensionless file names used by this language
+     */
+    Language.prototype.getFileNames = function () {
+        // Use concat to create a copy of this array, preventing external modification
+        return this._fileNames.concat();
+    };
 
     /**
      * Adds a file extension to this language.
@@ -379,6 +396,31 @@ define(function (require, exports, module) {
         }
     };
 
+    /**
+     * Adds a file name to the language which is used to match files that don't have extensions like "Makefile" for example.
+     * Private for now since dependent code would need to by kept in sync with such changes.
+     * See https://github.com/adobe/brackets/issues/2966 for plans to make this public.
+     * @param {!string} extension An extensionless file name used by this language
+     * @private
+     */
+    Language.prototype._addFileName = function (name) {
+        if (this._fileNames.indexOf(name) === -1) {
+            this._fileNames.push(name);
+
+            var language = _fileNameToLanguageMap[name];
+            if (language) {
+                console.warn("Cannot register file name \"" + name + "\" for " + this._name + ", it already belongs to " + language._name);
+            } else {
+                _fileNameToLanguageMap[name] = this;
+
+                // TODO (issue #2966) Allow extensions to add new file names to existing languages
+                // Notify on the Language and on LanguageManager?
+                // $(this).triggerHandler("fileNameAdded", [name]);
+                // $(exports).triggerHandler("fileNameAdded", [name, this]);
+            }
+        }
+    };
+
     /**
      * Returns whether the line comment syntax is defined for this language.
      * @return {boolean} Whether line comments are supported
@@ -504,6 +546,8 @@ define(function (require, exports, module) {
 
         var language = new Language(id, definition.name),
             fileExtensions = definition.fileExtensions,
+            fileNames = definition.fileNames,
+            l,
             i;
 
         var blockComment = definition.blockComment;
@@ -522,10 +566,17 @@ define(function (require, exports, module) {
         language._loadAndSetMode(definition.mode).done(function () {
             // register language file extensions after mode has loaded
             if (fileExtensions) {
-                for (i = 0; i < fileExtensions.length; i++) {
+                for (i = 0, l = fileExtensions.length; i < l; i++) {
                     language._addFileExtension(fileExtensions[i]);
                 }
             }
+
+            // register language file names after mode has loaded
+            if (fileNames) {
+                for (i = 0, l = fileNames.length; i < l; i++) {
+                    language._addFileName(fileNames[i]);
+                }
+            }
 
             // globally associate mode to language
             _setLanguageForMode(language.getMode(), language);
@@ -581,8 +632,8 @@ define(function (require, exports, module) {
     });
 
     // Public methods
-    exports.ready                        = _ready;
-    exports.defineLanguage               = defineLanguage;
-    exports.getLanguage                  = getLanguage;
-    exports.getLanguageForFileExtension  = getLanguageForFileExtension;
+    exports.ready                   = _ready;
+    exports.defineLanguage          = defineLanguage;
+    exports.getLanguage             = getLanguage;
+    exports.getLanguageForPath      = getLanguageForPath;
 });

src/language/languages.json

@@ -35,7 +35,7 @@
     "xml": {
         "name": "XML",
         "mode": "xml",
-        "fileExtensions": ["svg", "xml", "wxs", "wxl"],
+        "fileExtensions": ["svg", "xml", "wxs", "wxl", "wsdl", "rss", "atom", "rdf", "xslt", "xul", "xbl", "mathml"],
         "blockComment": ["<!--", "-->"]
     },
 
@@ -85,7 +85,8 @@
     "coffeescript": {
         "name": "CoffeeScript",
         "mode": "coffeescript",
-        "fileExtensions": ["coffee"]
+        "fileExtensions": ["coffee", "cf", "cson"],
+        "fileNames": ["Cakefile"]
     },
 
     "clojure": {
@@ -103,7 +104,7 @@
     "ruby": {
         "name": "Ruby",
         "mode": "ruby",
-        "fileExtensions": ["rb"]
+        "fileExtensions": ["rb", "ru", "gemspec", "rake"]
     },
 
     "python": {
@@ -134,7 +135,7 @@
         "name": "Diff",
         "mode": "diff",
         "fileExtensions": ["diff", "patch"]
-    },
+    },       
 
     "markdown": {
         "name": "Markdown",

test/spec/Editor-test.js

@@ -117,25 +117,25 @@ define(function (require, exports, module) {
 
             it("should switch to the HTML mode for files ending in .html", function () {
                 // verify editor content
-                var mode = LanguageManager.getLanguageForFileExtension("file:///only/testing/the/path.html").getMode();
+                var mode = LanguageManager.getLanguageForPath("file:///only/testing/the/path.html").getMode();
                 expect(mode).toSpecifyModeNamed("text/x-brackets-html");
             });
 
             it("should switch modes even if the url has a query string", function () {
                 // verify editor content
-                var mode = LanguageManager.getLanguageForFileExtension("http://only.org/testing/the/path.css?v=2").getMode();
+                var mode = LanguageManager.getLanguageForPath("http://only.org/testing/the/path.css?v=2").getMode();
                 expect(mode).toSpecifyModeNamed(langNames.css.mode);
             });
 
             it("should accept just a file name too", function () {
                 // verify editor content
-                var mode = LanguageManager.getLanguageForFileExtension("path.js").getMode();
+                var mode = LanguageManager.getLanguageForPath("path.js").getMode();
                 expect(mode).toSpecifyModeNamed(langNames.javascript.mode);
             });
 
             it("should default to plain text for unknown file extensions", function () {
                 // verify editor content
-                var mode = LanguageManager.getLanguageForFileExtension("test.foo").getMode();
+                var mode = LanguageManager.getLanguageForPath("test.foo").getMode();
 
                 // "unknown" mode uses it's MIME type instead
                 expect(mode).toBe("text/plain");

test/spec/LanguageManager-test.js

@@ -120,9 +120,9 @@ define(function (require, exports, module) {
                 var html    = LanguageManager.getLanguage("html"),
                     unknown = LanguageManager.getLanguage("unknown");
 
-                expect(LanguageManager.getLanguageForFileExtension("foo.html")).toBe(html);
-                expect(LanguageManager.getLanguageForFileExtension("INDEX.HTML")).toBe(html);
-                expect(LanguageManager.getLanguageForFileExtension("foo.doesNotExist")).toBe(unknown);
+                expect(LanguageManager.getLanguageForPath("foo.html")).toBe(html);
+                expect(LanguageManager.getLanguageForPath("INDEX.HTML")).toBe(html);
+                expect(LanguageManager.getLanguageForPath("foo.doesNotExist")).toBe(unknown);
             });
 
         });
@@ -176,7 +176,7 @@ define(function (require, exports, module) {
                 }, "The language should be resolved", 50);
 
                 runs(function () {
-                    expect(LanguageManager.getLanguageForFileExtension("file.p")).toBe(language);
+                    expect(LanguageManager.getLanguageForPath("file.p")).toBe(language);
                     validateLanguage(def, language);
                 });
             });
@@ -202,8 +202,8 @@ define(function (require, exports, module) {
 
                 runs(function () {
                     expect(xmlBefore).toBe(xmlAfter);
-                    expect(LanguageManager.getLanguageForFileExtension("file.wix")).toBe(lang);
-                    expect(LanguageManager.getLanguageForFileExtension("file.xml")).toBe(xmlAfter);
+                    expect(LanguageManager.getLanguageForPath("file.wix")).toBe(lang);
+                    expect(LanguageManager.getLanguageForPath("file.xml")).toBe(xmlAfter);
 
                     validateLanguage(def, lang);
                 });
@@ -272,7 +272,7 @@ define(function (require, exports, module) {
                 }, "The language should be resolved", 50);
 
                 runs(function () {
-                    expect(LanguageManager.getLanguageForFileExtension("file.erlang")).toBe(language);
+                    expect(LanguageManager.getLanguageForPath("file.erlang")).toBe(language);
                     validateLanguage(def, language);
                 });