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git config: report when trying to modify a non-existing repo config

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It is a pilot error to call `git config section.key value` outside of
any Git worktree. The message

	error: could not lock config file .git/config: No such file or
	directory

is not very helpful in that situation, though. Let's print a helpful
message instead.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2016-02-24 13:48:11 +01:00 committed by Junio C Hamano
parent 326e5bc91e
commit 638fa623d5
2 changed files with 14 additions and 0 deletions
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3
builtin/config.c
View file

@ -352,6 +352,9 @@ static int get_colorbool(const char *var, int print)
static void check_write(void)
{
if (!given_config_source.file && !startup_info->have_repository)
die("not in a git directory");
if (given_config_source.use_stdin)
die("writing to stdin is not supported");

11
t/t1308-config-set.sh
View file

@ -218,4 +218,15 @@ test_expect_success 'check line errors for malformed values' '
test_i18ngrep "fatal: .*alias\.br.*\.git/config.*line 2" result
'
test_expect_success 'error on modifying repo config without repo' '
mkdir no-repo &&
(
GIT_CEILING_DIRECTORIES=$(pwd) &&
export GIT_CEILING_DIRECTORIES &&
cd no-repo &&
test_must_fail git config a.b c 2>err &&
grep "not in a git directory" err
)
'
test_done