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/gitc_init.py b/subcmds/gitc_init.py
index e99affa..c957a9d 100644
--- a/subcmds/gitc_init.py
+++ b/subcmds/gitc_init.py
@@ -68,15 +68,13 @@
       os.mkdir(self.client_dir)
     super(GitcInit, self).Execute(opt, args)
 
-    for name, remote in self.manifest.remotes.iteritems():
-      remote.fetchUrl = remote.resolvedFetchUrl
-
+    manifest_file = self.manifest.manifestFile
     if opt.manifest_file:
       if not os.path.exists(opt.manifest_file):
         print('fatal: Specified manifest file %s does not exist.' %
               opt.manifest_file)
         sys.exit(1)
-      self.manifest.Override(opt.manifest_file)
-    gitc_utils.generate_gitc_manifest(self.client_dir, self.manifest)
+      manifest_file = opt.manifest_file
+    gitc_utils.generate_gitc_manifest(self.repodir, opt.gitc_client, None, manifest_file)
     print('Please run `cd %s` to view your GITC client.' %
           os.path.join(gitc_utils.GITC_FS_ROOT_DIR, opt.gitc_client))
diff --git a/subcmds/start.py b/subcmds/start.py
index 188fd7c..940c341 100644
--- a/subcmds/start.py
+++ b/subcmds/start.py
@@ -57,7 +57,6 @@
         print("error: at least one project must be specified", file=sys.stderr)
         sys.exit(1)
 
-    proj_name_to_gitc_proj_dict = {}
     if self.gitc_manifest:
       all_projects = self.GetProjects(projects, manifest=self.gitc_manifest,
                                       missing_ok=True)
@@ -67,7 +66,6 @@
         else:
           project.already_synced = False
           project.old_revision = project.revisionExpr
-        proj_name_to_gitc_proj_dict[project.name] = project
         project.revisionExpr = None
       # Save the GITC manifest.
       gitc_utils.save_manifest(self.gitc_manifest)
@@ -77,9 +75,10 @@
     pm = Progress('Starting %s' % nb, len(all_projects))
     for project in all_projects:
       pm.update()
+
       if self.gitc_manifest:
-        gitc_project = proj_name_to_gitc_proj_dict[project.name]
-        # Sync projects that have already been opened.
+        gitc_project = self.gitc_manifest.paths[project.relpath]
+        # Sync projects that have not been opened.
         if not gitc_project.already_synced:
           proj_localdir = os.path.join(self.gitc_manifest.gitc_client_dir,
                                        project.relpath)
@@ -89,7 +88,7 @@
           project.Sync_NetworkHalf()
           sync_buf = SyncBuffer(self.manifest.manifestProject.config)
           project.Sync_LocalHalf(sync_buf)
-          project.revisionExpr = gitc_project.old_revision
+          project.revisionId = gitc_project.old_revision
 
       # If the current revision is a specific SHA1 then we can't push back
       # to it; so substitute with dest_branch if defined, or with manifest
@@ -100,6 +99,7 @@
           branch_merge = project.dest_branch
         else:
           branch_merge = self.manifest.default.revisionExpr
+
       if not project.StartBranch(nb, branch_merge=branch_merge):
         err.append(project)
     pm.end()
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,