shortlog: disallow left-over arguments outside repo

If we are outside a repo and have any arguments left after
option-parsing, `setup_revisions()` will try to do its job and
something like this will happen:

$ git shortlog v2.16.0..
BUG: environment.c:183: git environment hasn't been setup
Aborted (core dumped)

The usage is wrong, but we could obviously handle this better. Note that
commit abe549e179 (shortlog: do not require to run from inside a git
repository, 2008-03-14) explicitly enabled `git shortlog` to run from
outside a repo, since we do not need a repo for parsing data from stdin.

Disallow left-over arguments when run from outside a repo.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/shortlog.c b/builtin/shortlog.c
index dc4af03fca48fc718d71a15d0d51f2c35aee75a9..3a823b3128259c8f9ee92dbbfaacb492a90e7d6e 100644 (file)
--- a/builtin/shortlog.c
+++ b/builtin/shortlog.c
@@ -293,6 +293,11 @@ int cmd_shortlog(int argc, const char **argv, const char *prefix)
 parse_done:
        argc = parse_options_end(&ctx);
 
+       if (nongit && argc > 1) {
+               error(_("too many arguments given outside repository"));
+               usage_with_options(shortlog_usage, options);
+       }
+
        if (setup_revisions(argc, argv, &rev, NULL) != 1) {
                error(_("unrecognized argument: %s"), argv[1]);
                usage_with_options(shortlog_usage, options);

diff --git a/t/t4201-shortlog.sh b/t/t4201-shortlog.sh
index da10478f59da1a301edf7def229d37fbc964dce9..ff6649ed9a70721523da3c55142a9622b152243a 100755 (executable)
--- a/t/t4201-shortlog.sh
+++ b/t/t4201-shortlog.sh
@@ -127,6 +127,11 @@ test_expect_success !MINGW 'shortlog can read --format=raw output' '
        test_cmp expect out
 '
 
+test_expect_success 'shortlog from non-git directory refuses extra arguments' '
+       test_must_fail env GIT_DIR=non-existing git shortlog foo 2>out &&
+       test_i18ngrep "too many arguments" out
+'
+
 test_expect_success 'shortlog should add newline when input line matches wraplen' '
        cat >expect <<\EOF &&
 A U Thor (2):