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authorLibravatar Johannes Schindelin <johannes.schindelin@gmx.de>2021-02-10 16:11:38 +0000
committerLibravatar Junio C Hamano <gitster@pobox.com>2021-02-11 09:21:52 -0800
commitc809798b2acf1afdeeea02a9175677590ad8d689 (patch)
tree4731a8efe62e34f2df25e0c04ab17e192769af97
parentMerge branch 'tb/ci-run-cocci-with-18.04' (diff)
downloadtgif-c809798b2acf1afdeeea02a9175677590ad8d689.tar.xz
reflog expire --stale-fix: be generous about missing objects
Whenever a user runs `git reflog expire --stale-fix`, the most likely reason is that their repository is at least _somewhat_ corrupt. Which means that it is more than just possible that some objects are missing. If that is the case, that can currently let the command abort through the phase where it tries to mark all reachable objects. Instead of adding insult to injury, let's be gentle and continue as best as we can in such a scenario, simply by ignoring the missing objects and moving on. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/reflog.c3
-rwxr-xr-xt/t1410-reflog.sh26
2 files changed, 29 insertions, 0 deletions
diff --git a/builtin/reflog.c b/builtin/reflog.c
index ca1d8079f3..09541d1c80 100644
--- a/builtin/reflog.c
+++ b/builtin/reflog.c
@@ -602,6 +602,9 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
*/
if (cb.cmd.stalefix) {
repo_init_revisions(the_repository, &cb.cmd.revs, prefix);
+ cb.cmd.revs.do_not_die_on_missing_tree = 1;
+ cb.cmd.revs.ignore_missing = 1;
+ cb.cmd.revs.ignore_missing_links = 1;
if (flags & EXPIRE_REFLOGS_VERBOSE)
printf(_("Marking reachable objects..."));
mark_reachable_objects(&cb.cmd.revs, 0, 0, NULL);
diff --git a/t/t1410-reflog.sh b/t/t1410-reflog.sh
index ecccaa0634..27b9080251 100755
--- a/t/t1410-reflog.sh
+++ b/t/t1410-reflog.sh
@@ -158,6 +158,32 @@ test_expect_success 'reflog expire' '
check_fsck "dangling commit $K"
'
+test_expect_success '--stale-fix handles missing objects generously' '
+ git -c core.logAllRefUpdates=false fast-import --date-format=now <<-EOS &&
+ commit refs/heads/stale-fix
+ mark :1
+ committer Author <a@uth.or> now
+ data <<EOF
+ start stale fix
+ EOF
+ M 100644 inline file
+ data <<EOF
+ contents
+ EOF
+ commit refs/heads/stale-fix
+ committer Author <a@uth.or> now
+ data <<EOF
+ stale fix branch tip
+ EOF
+ from :1
+ EOS
+
+ parent_oid=$(git rev-parse stale-fix^) &&
+ test_when_finished "recover $parent_oid" &&
+ corrupt $parent_oid &&
+ git reflog expire --stale-fix
+'
+
test_expect_success 'prune and fsck' '
git prune &&