diff options
author | Derrick Stolee <dstolee@microsoft.com> | 2021-01-08 05:30:46 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2021-01-08 06:12:02 +0300 |
commit | 6c62f015520eaecd94d93a7e8339b190f2c24bc6 (patch) | |
tree | 714efa433e924b872cac3da50dad118a2000fc4b /builtin | |
parent | 71ca53e8125e36efbda17293c50027d31681a41f (diff) |
for-each-repo: do nothing on empty config
'git for-each-repo --config=X' should return success without calling any
subcommands when the config key 'X' has no value. The current
implementation instead segfaults.
A user could run into this issue if they used 'git maintenance start' to
initialize their cron schedule using 'git for-each-repo
--config=maintenance.repo ...' but then using 'git maintenance
unregister' to remove the config option. (Note: 'git maintenance stop'
would remove the config _and_ remove the cron schedule.)
Add a simple test to ensure this works. Use 'git help --no-such-option'
as the potential subcommand to ensure that we will hit a failure if the
subcommand is ever run.
Reported-by: Andreas Bühmann <dev@uuml.de>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin')
-rw-r--r-- | builtin/for-each-repo.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/builtin/for-each-repo.c b/builtin/for-each-repo.c index 5bba623ff1..52be64a437 100644 --- a/builtin/for-each-repo.c +++ b/builtin/for-each-repo.c @@ -51,6 +51,13 @@ int cmd_for_each_repo(int argc, const char **argv, const char *prefix) values = repo_config_get_value_multi(the_repository, config_key); + /* + * Do nothing on an empty list, which is equivalent to the case + * where the config variable does not exist at all. + */ + if (!values) + return 0; + for (i = 0; !result && i < values->nr; i++) result = run_command_on_repo(values->items[i].string, &args); |