pull: should be noop when already-up-to-date
The already-up-to-date pull bug was fixed for --ff-only but it did not include the case where --ff or --ff-only are not specified. This updates the --ff-only fix to include the case where --ff or --ff-only are not specified in command line flags or config. Signed-off-by: Erwin Villejo <erwin.villejo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Erwin Villejo committed
Nov 17, 2021 at 07:55 UTC
ea1954af771253660cd84dc73b8f2832327c9c02
2 files changed
+10
-2
builtin/pull.c
+4
-2
index 54286b544f..6ff2a8196e 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -984,6 +984,7 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
struct object_id rebase_fork_point;
int rebase_unspecified = 0;
int can_ff;
+ int divergent;
if (!getenv("GIT_REFLOG_ACTION"))
set_reflog_message(argc, argv);
@@ -1098,15 +1099,16 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
}
can_ff = get_can_ff(&orig_head, &merge_heads);
+ divergent = !can_ff && !already_up_to_date(&orig_head, &merge_heads);
/* ff-only takes precedence over rebase */
if (opt_ff && !strcmp(opt_ff, "--ff-only")) {
- if (!can_ff && !already_up_to_date(&orig_head, &merge_heads))
+ if (divergent)
die_ff_impossible();
opt_rebase = REBASE_FALSE;
}
/* If no action specified and we can't fast forward, then warn. */
- if (!opt_ff && rebase_unspecified && !can_ff) {
+ if (!opt_ff && rebase_unspecified && divergent) {
show_advice_pull_non_ff();
die(_("Need to specify how to reconcile divergent branches."));
}
t/t7601-merge-pull-config.sh
+6
index 6275641b9c..bd238d89b0 100755
--- a/t/t7601-merge-pull-config.sh
+++ b/t/t7601-merge-pull-config.sh
@@ -387,6 +387,12 @@ test_expect_success 'pull prevents non-fast-forward with "only" in pull.ff' '
test_must_fail git pull . c3
'
+test_expect_success 'already-up-to-date pull succeeds with unspecified pull.ff' '
+ git reset --hard c1 &&
+ git pull . c0 &&
+ test "$(git rev-parse HEAD)" = "$(git rev-parse c1)"
+'
+
test_expect_success 'already-up-to-date pull succeeds with "only" in pull.ff' '
git reset --hard c1 &&
test_config pull.ff only &&