add cache list command to pub

utils/pub/hosted_source.dart

Index: utils/pub/hosted_source.dart
===================================================================
--- utils/pub/hosted_source.dart	(revision 19938)
+++ utils/pub/hosted_source.dart	(working copy)
@@ -93,7 +93,7 @@
   /// from that site.
   Future<String> systemCacheDirectory(PackageId id) {
     var parsed = _parseDescription(id.description);
-    var url = parsed.last.replaceAll(new RegExp(r"^https?://"), "");
+    var url = _getSourceDirectory(parsed.last);
     var urlDir = replace(url, new RegExp(r'[<>:"\\/|?*%]'), (match) {
       return '%${match[0].codeUnitAt(0)}';
     });
@@ -118,6 +118,24 @@
     return description;
   }
 
+  Future<List<Package>> getCachedPackages() {
+    var url = _getSourceDirectory(_defaultUrl);
+    return listDir(path.join(systemCacheRoot, url)).then((entries) {
+      return entries.map((entry) {
+            return new Package.load(null, entry, systemCache.sources);

[Bob Nystrom, 2013/03/13 17:44:07]

Only indent 2, or better, use => if it fits:

return entries.map((entry) => new Package.load(null, entry,
systemCache.sources));

[keertip, 2013/03/13 18:09:48]

Done.

+      });
+      
+    });
+//      var list = new List();
+//      for (var entry in entries) {
+//        var name = path.basename(entry).replaceAll(new RegExp(r"-(.*)"),"");
+//        var p = new Package.load(null, entry, systemCache.sources);
+//        list.add(p);
+//      }
+//      return list;
+//    });

[Bob Nystrom, 2013/03/13 17:44:07]

Remove commented out code. :)

[keertip, 2013/03/13 18:09:48]

Oops! removed!
On 2013/03/13 17:44:07, Bob Nystrom wrote:

+  }
+  
   /// When an error occurs trying to read something about [package] from [url],
   /// this tries to translate into a more user friendly error message. Always
   /// throws an error, either the original one or a better one.
@@ -145,6 +163,10 @@
 /// The URL of the default package repository.
 final _defaultUrl = "https://pub.dartlang.org";
 
+String _getSourceDirectory(String url){

[Bob Nystrom, 2013/03/13 17:44:07]

Space after )

[keertip, 2013/03/13 18:09:48]

Done.

+  return url.replaceAll(new RegExp(r"^https?://"), "");
+}
+
 /// Parses [description] into its server and package name components, then
 /// converts that to a Uri given [pattern]. Ensures the package name is
 /// properly URL encoded.