remote: die on config error when setting URL

When invoking `git-remote --set-url` we do not check the return value when writing the actual new URL to the configuration file, pretending to the user that the configuration has been set while it was in fact not persisted. Fix this problem by dying early when setting the config fails. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Patrick Steinhardt committed Feb 22, 2016 at 12:23 UTC 45ebdcc99a8d8e7c671eb1db1212d90f5f2db341
2 files changed +15 -5
builtin/remote.c
+6 -5
@@ -1579,11 +1579,12 @@ static int set_url(int argc, const char **argv)
1579 /* Special cases that add new entry. */
1580 if ((!oldurl && !delete_mode) || add_mode) {
1581 if (add_mode)
1582 - git_config_set_multivar(name_buf.buf, newurl,
1583 - "^$", 0);
1582 + git_config_set_multivar_or_die(name_buf.buf, newurl,
1583 + "^$", 0);
1584 else
1585 - git_config_set(name_buf.buf, newurl);
1585 + git_config_set_or_die(name_buf.buf, newurl);
1586 strbuf_release(&name_buf);
1587 +
1588 return 0;
1589 }
1590
@@ -1604,9 +1605,9 @@ static int set_url(int argc, const char **argv)
1605 regfree(&old_regex);
1606
1607 if (!delete_mode)
1607 - git_config_set_multivar(name_buf.buf, newurl, oldurl, 0);
1608 + git_config_set_multivar_or_die(name_buf.buf, newurl, oldurl, 0);
1609 else
1609 - git_config_set_multivar(name_buf.buf, NULL, oldurl, 1);
1610 + git_config_set_multivar_or_die(name_buf.buf, NULL, oldurl, 1);
1611 return 0;
1612 }
1613
t/t5505-remote.sh
+9
@@ -932,6 +932,15 @@ test_expect_success 'get-url on new remote' '
932 echo foo | get_url_test --push --all someremote
933 '
934
935 +test_expect_success 'remote set-url with locked config' '
936 + test_when_finished "rm -f .git/config.lock" &&
937 + git config --get-all remote.someremote.url >expect &&
938 + >.git/config.lock &&
939 + test_must_fail git remote set-url someremote baz &&
940 + git config --get-all remote.someremote.url >actual &&
941 + cmp expect actual
942 +'
943 +
944 test_expect_success 'remote set-url bar' '
945 git remote set-url someremote bar &&
946 echo bar >expect &&