The "--local" option instructs git-config to read or modify
the repository-level config. This doesn't make any sense if
you're not actually in a repository.
Older versions of Git would blindly try to read or write
".git/config". For reading, this would result in a quiet
failure, since there was no config to read (and thus no
matching config value). Writing would generally fail
noisily, since ".git" was unlikely to exist. But since
b1ef400ee (setup_git_env: avoid blind fall-back to ".git",
2016-10-20), we catch this in the call to git_pathdup() and
die with an assertion.
Dying is the right thing to do, but we should catch the
problem early and give a more human-friendly error message.
Note that even without --local, git-config will sometimes
default to using local repository config (e.g., when
writing). These cases are already protected by similar
checks, and covered by a test in t1308.
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
builtin/config.c | 3 +++
t/t1300-repo-config.sh | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/builtin/config.c b/builtin/config.c
index 3a554ad50..7f6c25d4d 100644
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -496,6 +496,9 @@ int cmd_config(int argc, const char **argv, const char *prefix)
usage_with_options(builtin_config_usage, builtin_config_options);
}
+ if (use_local_config && nongit)
+ die(_("--local can only be used inside a git repository"));
+
if (given_config_source.file &&
!strcmp(given_config_source.file, "-")) {
given_config_source.file = NULL;
diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
index 867704a64..13b7851f7 100755
--- a/t/t1300-repo-config.sh
+++ b/t/t1300-repo-config.sh
@@ -1539,7 +1539,7 @@ test_expect_success !MINGW '--show-origin blob ref' '
test_cmp expect output
'
-test_expect_failure '--local requires a repo' '
+test_expect_success '--local requires a repo' '
# we expect 128 to ensure that we do not simply
# fail to find anything and return code "1"
test_expect_code 128 nongit git config --local foo.bar
--
2.13.0.452.g0afc8e12b
