Add ability to exit before git-merge is invoked

It may be useful for the maintainer to review b4 retrieval/validation
output before git-merge is invoked, so add a pause requiring an Enter or
Ctrl-C.

Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>

1 files changed, 9 insertions, 1 deletions

diff --git a/b4/mbox.py b/b4/mbox.py
index 277df89..1cc58c7 100644
--- a/b4/mbox.py
+++ b/b4/mbox.py
@@ -379,8 +379,16 @@ def make_am(msgs, cmdargs, msgid):
 
         thanks_record_am(lser, cherrypick=cherrypick)
         if cmdargs.merge:
+            if not cmdargs.no_interactive:
+                logger.info('Will exec: %s', ' '.join(mergecmd))
+                try:
+                    input('Press Enter to continue or Ctrl-C to abort')
+                except KeyboardInterrupt:
+                    logger.info('')
+                    sys.exit(130)
+            else:
+                logger.info('Invoking: %s', ' '.join(mergecmd))
             # We exec git-merge and let it take over
-            logger.info('Invoking: %s', ' '.join(mergecmd))
             os.execvp(mergecmd[0], mergecmd)
 
         logger.info('You can now merge or checkout FETCH_HEAD')