GITC: Always update the gitc manifest from the repo manifest

This way any changes made to the main manifest are reflected in the gitc
manifest. It's also necessary to use both manifests to sync since the
information required to update the gitc manifest is actually in the repo
manifest.

This also fixes a few issues that came up when testing. notdefault
groups weren't being saved to the gitc manifest in a method that matched
'sync'. The merge branch wasn't always being set to the correct value
either.

Change-Id: I5dbc850dd73a9fbd10ab2470ae4c40e46ff894de
diff --git a/subcmds/sync.py b/subcmds/sync.py
index 7b44dbd..79cfaaa 100644
--- a/subcmds/sync.py
+++ b/subcmds/sync.py
@@ -670,32 +670,36 @@
       if opt.jobs is None:
         self.jobs = self.manifest.default.sync_j
 
-    # TODO (sbasi) - Add support for manifest changes, aka projects
-    # have been added or deleted from the manifest.
     if self.gitc_manifest:
       gitc_manifest_projects = self.GetProjects(args,
-                                                manifest=self.gitc_manifest,
                                                 missing_ok=True)
       gitc_projects = []
       opened_projects = []
       for project in gitc_manifest_projects:
-        if not project.old_revision:
-          gitc_projects.append(project)
+        if project.relpath in self.gitc_manifest.paths and \
+           self.gitc_manifest.paths[project.relpath].old_revision:
+          opened_projects.append(project.relpath)
         else:
-          opened_projects.append(project)
+          gitc_projects.append(project.relpath)
 
-      if gitc_projects and not opt.local_only:
+      if not args:
+        gitc_projects = None
+
+      if gitc_projects != [] and not opt.local_only:
         print('Updating GITC client: %s' % self.gitc_manifest.gitc_client_name)
-        gitc_utils.generate_gitc_manifest(self.gitc_manifest.gitc_client_dir,
+        gitc_utils.generate_gitc_manifest(self.repodir,
+                                          self.gitc_manifest.gitc_client_name,
                                           self.gitc_manifest,
+                                          self.manifest.manifestFile,
                                           gitc_projects)
         print('GITC client successfully synced.')
 
       # The opened projects need to be synced as normal, therefore we
       # generate a new args list to represent the opened projects.
-      args = []
-      for proj in opened_projects:
-        args.append(os.path.relpath(proj.worktree, os.getcwd()))
+      # TODO: make this more reliable -- if there's a project name/path overlap,
+      # this may choose the wrong project.
+      args = [os.path.relpath(self.manifest.paths[p].worktree, os.getcwd())
+              for p in opened_projects]
       if not args:
         return
     all_projects = self.GetProjects(args,