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/subcmds/sync.py b/subcmds/sync.py
index 9f8de9e5..f06c61c5 100644
--- a/subcmds/sync.py
+++ b/subcmds/sync.py
@@ -213,6 +213,9 @@ later is required to fix a server side protocol bug.
     p.add_option('-c', '--current-branch',
                  dest='current_branch_only', action='store_true',
                  help='fetch only current branch from server')
+    p.add_option('--no-current-branch',
+                 dest='current_branch_only', action='store_false',
+                 help='fetch all branches from server')
     p.add_option('-m', '--manifest-name',
                  dest='manifest_name',
                  help='temporary manifest to use for this sync', metavar='NAME.xml')