Add tests, comments, and min.js exclusion

src/server/editorServices.ts

@@ -61,6 +61,24 @@ namespace ts.server {
         "smart": IndentStyle.Smart
     });
 
+    /**
+     * How to understand this block:
+     *  * The 'match' property is a regexp that matches a filename.
+     *  * If 'match' is successful, then:
+     *     * All files from 'exclude' are removed from the project. See below.
+     *     * All 'types' are included in ATA
+     *  * What the heck is 'exclude' ?
+     *     * An array of an array of strings and numbers
+     *     * Each array is:
+     *       * An array of strings and numbers
+     *       * The strings are literals
+     *       * The numbers refer to capture group indices from the 'match' regexp
+     *          * Remember that '1' is the first group
+     *       * These are concatenated together to form a new regexp
+     *       * Filenames matching these regexps are excluded from the project
+     * This default value is tested in tsserverProjectSystem.ts; add tests there
+     *   if you are changing this so that you can be sure your regexp works!
+     */
     const defaultTypeSafeList: SafeList = {
         "jquery": {
             // jquery files can have names like "jquery-1.10.2.min.js" (or "jquery.intellisense.js")
@@ -84,6 +102,11 @@ namespace ts.server {
             "match": /^(.*\/office\/1)\/excel-\d+\.debug\.js$/i, // Office NuGet package is installed under a "1/office" folder
             "exclude": [["^", 1, "/.*"]],                     // Exclude that whole folder if the file indicated above is found in it
             "types": ["office"]                               // @types package to fetch instead
+        },
+        "Minified files": {
+            // e.g. /whatever/blah.min.js
+            "match": /^(.+\.min\.js)$/i,
+            "exclude": [["^", 1, "$"]]
         }
     };
 
@@ -1507,7 +1530,7 @@ namespace ts.server {
 
                 // Copy back this field into the project if needed
                 if (types.length > 0) {
-                    proj.typeAcquisition = proj.typeAcquisition || { };
+                    proj.typeAcquisition = proj.typeAcquisition || {};
                     proj.typeAcquisition.include = types;
                 }
             }