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builtin/shortlog: don't set up revisions without repo

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It is possible to run git-shortlog(1) outside of a repository by passing
it output from git-log(1) via standard input. Obviously, as there is no
repository in that context, it is thus unsupported to pass any revisions
as arguments.

Regardless of that we still end up calling `setup_revisions()`. While
that works alright, it is somewhat strange. Furthermore, this is about
to cause problems when we unset the default object hash.

Refactor the code to only call `setup_revisions()` when we have a
repository. This is safe to do as we already verify that there are no
arguments when running outside of a repository anyway.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt 2024-05-07 06:53:35 +02:00 committed by Junio C Hamano
parent ab274909d4
commit 373bfa6077
1 changed files with 1 additions and 1 deletions
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2
builtin/shortlog.c
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@ -435,7 +435,7 @@ int cmd_shortlog(int argc, const char **argv, const char *prefix)
usage_with_options(shortlog_usage, options);
}
if (setup_revisions(argc, argv, &rev, NULL) != 1) {
if (!nongit && setup_revisions(argc, argv, &rev, NULL) != 1) {
error(_("unrecognized argument: %s"), argv[1]);
usage_with_options(shortlog_usage, options);
}