"git clone --config" uses the following incantation to add an item to
a config file, instead of replacing an existing value:
git_config_set_multivar_gently(key, value, "^$", 0)
As long as no existing value matches the regex ^$, that works as
intended and adds to the config. When a value is empty, though, it
replaces the existing value.
Noticed while trying to set credential.helper during a clone to use a
specific helper without inheriting from ~/.gitconfig and
/etc/gitconfig. That is, I ran
git clone -c credential.helper= \
-c credential.helper=myhelper \
https://example.com/repo
intending to produce the configuration
[credential]
helper =
helper = myhelper
Without this patch, the 'helper =' line is not included and the
credential helper from /etc/gitconfig gets used.
Signed-off-by: Jonathan Nieder <[email protected]>
---
Thoughts?
Thanks,
Jonathan
builtin/clone.c | 4 +++-
t/t5611-clone-config.sh | 8 ++++++++
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/builtin/clone.c b/builtin/clone.c
index de85b85254..a6ae7d6180 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -773,7 +773,9 @@ static int checkout(int submodule_progress)
static int write_one_config(const char *key, const char *value, void *data)
{
- return git_config_set_multivar_gently(key, value ? value : "true",
"^$", 0);
+ return git_config_set_multivar_gently(key,
+ value ? value : "true",
+ CONFIG_REGEX_NONE, 0);
}
static void write_config(struct string_list *config)
diff --git a/t/t5611-clone-config.sh b/t/t5611-clone-config.sh
index e4850b778c..39329eb7a8 100755
--- a/t/t5611-clone-config.sh
+++ b/t/t5611-clone-config.sh
@@ -19,6 +19,14 @@ test_expect_success 'clone -c can set multi-keys' '
test_cmp expect actual
'
+test_expect_success 'clone -c can set multi-keys, including some empty' '
+ rm -rf child &&
+ git clone -c credential.helper= -c credential.helper=hi . child &&
+ printf "%s\n" "" hi >expect &&
+ git --git-dir=child/.git config --get-all credential.helper >actual &&
+ test_cmp expect actual
+'
+
test_expect_success 'clone -c without a value is boolean true' '
rm -rf child &&
git clone -c core.foo . child &&
--
2.13.0.rc1.294.g07d810a77f
