Devtools: Extensible mime typing, mime typing by file name

Source/devtools/front_end/common/ResourceType.js

Index: Source/devtools/front_end/common/ResourceType.js
diff --git a/Source/devtools/front_end/common/ResourceType.js b/Source/devtools/front_end/common/ResourceType.js
index cb8ef50033d250eeea0ea85cc3acd1de368c3b48..31a769ca1b5080297659ba40c10a6e8b4c42717b 100644
--- a/Source/devtools/front_end/common/ResourceType.js
+++ b/Source/devtools/front_end/common/ResourceType.js
@@ -141,7 +141,41 @@ WebInspector.resourceTypes = {
     Other: new WebInspector.ResourceType("other", "Other", WebInspector.resourceCategories.Other, false)
 }
 
-WebInspector.ResourceType.mimeTypesForExtensions = {
+/**
+ * @param {string} url
+ * @return {string}
+ */
+WebInspector.ResourceType.mimeFromURL = function(url)
+{
+    var name = WebInspector.TextUtils.fileName(url);
+    if (WebInspector.ResourceType.mimeTypeByName[name]) {
+        return WebInspector.ResourceType.mimeTypeByName[name];
+    }
+    var ext = WebInspector.TextUtils.extension(url).toLowerCase();
+    return WebInspector.ResourceType.mimeTypeByExtension[ext];
+}
+
+/**
+ * @param {string} extensionOrName
+ * @param {string} mime
+ * @param {boolean=} byName
+ */
+WebInspector.ResourceType.newMimeType = function(extensionOrName, mime, byName)

[pfeldman, 2015/10/22 17:38:22]

Do we need this method? Seems like mimeFromURL is solving it.

[wes, 2015/10/23 19:00:41]

mimeFromURL canonically maps a URL to a corresponding mimetype, while
newMimeType is an endpoint to add new mime types as runtime (as in through
extensions). I mean, we could always edit the
WebInspector.ResourceType.mimeTypeByExtension and
WebInspector.ResourceType.mimeTypeByName objects directly, but having a
canonical function for doing so seemed sensible.

+{
+    var matches = WebInspector.ResourceType.mimeTypeByExtension;
+    if (byName) {
+        matches = WebInspector.ResourceType.mimeTypeByName;
+    }
+
+    matches[extensionOrName] = mime;
+}
+
+WebInspector.ResourceType.mimeTypeByName = {
+    // CoffeeScript
+    "Cakefile": "text/x-coffeescript"
+}
+
+WebInspector.ResourceType.mimeTypeByExtension = {
     // Web extensions
     "js": "text/javascript",
     "css": "text/css",