GITC: Add repo start support.

Add repo start support for GITC checkouts. If the user is in
the GITC FS view, they can now run repo start to check out
the sources and create a new working branch.

When "repo start" is called on a GITC project, the revision
tag is set to an empty string and saved in a new tag:
old-revision. This tells the GITC filesystem to display the
local copy of the sources when being viewed. The local copy
is created by pulling the project sources and the new branch
is created based off the original project revision.

Updated main.py to setup each command's gitc_manifest when
appropriate.

Updated repo sync's logic to sync opened projects and
updating the GITC manifest file for the rest.

Change-Id: I7e4809d1c4fc43c69b26f2f1bebe45aab0cae628

1 files changed, 8 insertions, 1 deletions

diff --git a/main.py b/main.py
index 6736abc9..adfaffb0 100755
--- a/main.py
+++ b/main.py
@@ -51,7 +51,8 @@ from error import ManifestParseError
 from error import NoManifestException
 from error import NoSuchProjectError
 from error import RepoChangedException
-from manifest_xml import XmlManifest
+import gitc_utils
+from manifest_xml import GitcManifest, XmlManifest
 from pager import RunPager
 from wrapper import WrapperPath, Wrapper
 
@@ -129,6 +130,12 @@ class _Repo(object):
 
     cmd.repodir = self.repodir
     cmd.manifest = XmlManifest(cmd.repodir)
+    cmd.gitc_manifest = None
+    gitc_client_name = gitc_utils.parse_clientdir(os.getcwd())
+    if gitc_client_name:
+      cmd.gitc_manifest = GitcManifest(cmd.repodir, gitc_client_name)
+      cmd.manifest.isGitcClient = True
+
     Editor.globalConfig = cmd.manifest.globalConfig
 
     if not isinstance(cmd, MirrorSafeCommand) and cmd.manifest.IsMirror: