for-each-ref: Fix sort with multiple keys

The linked list describing sort options was not correctly set up in
opt_parse_sort. In the result, contrary to the documentation, only the
last of multiple --sort options to git-for-each-ref was taken into
account. This commit fixes it.

Signed-off-by: Kacper Kornet <draenog@pld-linux.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index b01d76a..0c5294e 100644 (file)
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -962,7 +962,9 @@ static int opt_parse_sort(const struct option *opt, const char *arg, int unset)
        if (!arg) /* should --no-sort void the list ? */
                return -1;
 
-       *sort_tail = s = xcalloc(1, sizeof(*s));
+       s = xcalloc(1, sizeof(*s));
+       s->next = *sort_tail;
+       *sort_tail = s;
 
        if (*arg == '-') {
                s->reverse = 1;

diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh
index a0d82d4..752f5cb 100755 (executable)
--- a/t/t6300-for-each-ref.sh
+++ b/t/t6300-for-each-ref.sh
@@ -461,7 +461,7 @@ cat >expected <<\EOF
 90b5ebede4899eda64893bc2a4c8f1d6fb6dfc40 <committer@example.com> refs/tags/bogo
 EOF
 
-test_expect_failure 'Verify sort with multiple keys' '
+test_expect_success 'Verify sort with multiple keys' '
        git for-each-ref --format="%(objectname) %(taggeremail) %(refname)" --sort=objectname --sort=taggeremail \
                refs/tags/bogo refs/tags/master > actual &&
        test_cmp expected actual