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config --get --path: check for unset $HOME

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If $HOME is unset (as in some automated build situations),
currently

	git config --path path.home "~"
	git config --path --get path.home

segfaults.  Error out with

	Failed to expand user dir in: '~/'

instead.

Reported-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Nieder 2010-07-26 10:06:51 -05:00 committed by Junio C Hamano
parent 28bf4ba014
commit 79bf149061
2 changed files with 25 additions and 1 deletions
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2
path.c
View File

@ -316,6 +316,8 @@ char *expand_user_path(const char *path)
size_t username_len = first_slash - username;
if (username_len == 0) {
const char *home = getenv("HOME");
if (!home)
goto return_null;
strbuf_add(&user_path, home, strlen(home));
} else {
struct passwd *pw = getpw_str(username, username_len);

24
t/t1300-repo-config.sh
View File

@ -707,19 +707,41 @@ test_expect_success 'set --path' '
git config --path path.trailingtilde "foo~" &&
test_cmp expect .git/config'
if test "${HOME+set}"
then
test_set_prereq HOMEVAR
fi
cat >expect <<EOF
$HOME/
/dev/null
foo~
EOF
test_expect_success 'get --path' '
test_expect_success HOMEVAR 'get --path' '
git config --get --path path.home > result &&
git config --get --path path.normal >> result &&
git config --get --path path.trailingtilde >> result &&
test_cmp expect result
'
cat >expect <<\EOF
/dev/null
foo~
EOF
test_expect_success 'get --path copes with unset $HOME' '
(
unset HOME;
test_must_fail git config --get --path path.home \
>result 2>msg &&
git config --get --path path.normal >>result &&
git config --get --path path.trailingtilde >>result
) &&
grep "[Ff]ailed to expand.*~/" msg &&
test_cmp expect result
'
rm .git/config
git config quote.leading " test"