add --no-current-branch option to invert --current-branch

For most commands, this is more about providing a way to undo earlier
command line options (e.g. `repo info -c --no-current-branch`) which
can be helpful for scripting & automation.  But for the sync command,
this is helpful to undo the setting that exists in the manifest itself.

With this in place, tweak the sync current_branch_only logic to only
apply the manifest settings when the user hasn't specified a command
line option.

Bug: https://crbug.com/gerrit/12401
Change-Id: I21e2384624680cc740d1b5d1e49c50589d2fe6a0
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/304903
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Tested-by: Mike Frysinger <vapier@google.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/repo b/repo
index b3f3673b..4068b127 100755
--- a/repo
+++ b/repo
@@ -324,6 +324,9 @@ def InitParser(parser, gitc_init=False):
   group.add_option(*cbr_opts,
                    dest='current_branch_only', action='store_true',
                    help='fetch only current manifest branch from server')
+  group.add_option('--no-current-branch',
+                   dest='current_branch_only', action='store_false',
+                   help='fetch all manifest branches from server')
   group.add_option('--no-tags',
                    dest='tags', default=True, action='store_false',
                    help="don't fetch tags in the manifest")