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authorToon Claes <toon@iotcl.com>2026-01-30 15:26:38 +0100
committerJunio C Hamano <gitster@pobox.com>2026-01-30 08:57:01 -0800
commit525ef52301be231c73393da5af4a4071f060eb20 (patch)
treed9196ebe8c54c6f4607a82cca5ee6a5b017c6341
parentb768485c4b7ad0a80d0fd24ec941308b57ccb6ed (diff)
downloadgit-525ef52301be231c73393da5af4a4071f060eb20.tar.xz
last-modified: verify revision argument is a commit-ish
Passing a non-committish revision to git-last-modified(1) triggers the following BUG: git last-modified HEAD^{tree} BUG: builtin/last-modified.c:456: paths remaining beyond boundary in last-modified Fix this error by ensuring that the given revision peels to a commit. This change also adds a test to verify git-last-modified(1) can operate on an annotated tag. For this an annotated tag is added that points to the second commit. But this causes ambiguous results when calling git-name-rev(1) with `--tags`, because now two tags point to the same commit. To remove this ambiguity, pass `--exclude=<tag>` to git-name-rev(1) to exclude the new annotated tag. Reported-by: Gusted <gusted@codeberg.org> Signed-off-by: Toon Claes <toon@iotcl.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/last-modified.c5
-rwxr-xr-xt/t8020-last-modified.sh15
2 files changed, 19 insertions, 1 deletions
diff --git a/builtin/last-modified.c b/builtin/last-modified.c
index e02ec8428b..d0944673f0 100644
--- a/builtin/last-modified.c
+++ b/builtin/last-modified.c
@@ -150,6 +150,11 @@ static int populate_paths_from_revs(struct last_modified *lm)
goto out;
}
+ if (!repo_peel_to_type(lm->rev.repo, obj->path, 0, obj->item, OBJ_COMMIT)) {
+ ret = error(_("revision argument '%s' is a %s, not a commit-ish"), obj->name, type_name(obj->item->type));
+ goto out;
+ }
+
diff_tree_oid(lm->rev.repo->hash_algo->empty_tree,
&obj->item->oid, "", &diffopt);
diff_flush(&diffopt);
diff --git a/t/t8020-last-modified.sh b/t/t8020-last-modified.sh
index d1aad12319..ec5bdc6aa0 100755
--- a/t/t8020-last-modified.sh
+++ b/t/t8020-last-modified.sh
@@ -8,6 +8,7 @@ test_expect_success 'setup' '
test_commit 1 file &&
mkdir a &&
test_commit 2 a/file &&
+ git tag -mA t2 2 &&
mkdir a/b &&
test_commit 3 a/b/file
'
@@ -30,7 +31,7 @@ check_last_modified() {
cat >expect &&
git ${indir:+-C "$indir"} last-modified "$@" >tmp.1 &&
- git name-rev --annotate-stdin --name-only --tags \
+ git name-rev --annotate-stdin --name-only --tags --exclude=t2 \
<tmp.1 >tmp.2 &&
tr '\t' ' ' <tmp.2 >actual &&
test_cmp expect actual
@@ -51,6 +52,13 @@ test_expect_success 'last-modified recursive' '
EOF
'
+test_expect_success 'last-modified on annotated tag' '
+ check_last_modified t2 <<-\EOF
+ 2 a
+ 1 file
+ EOF
+'
+
test_expect_success 'last-modified recursive with show-trees' '
check_last_modified -r -t <<-\EOF
3 a/b
@@ -236,4 +244,9 @@ test_expect_success 'last-modified complains about unknown arguments' '
test_grep "unknown last-modified argument: --foo" err
'
+test_expect_success 'last-modified expects commit-ish' '
+ test_must_fail git last-modified HEAD^{tree} 2>err &&
+ test_grep "revision argument ${SQ}HEAD^{tree}${SQ} is a tree, not a commit-ish" err
+'
+
test_done