[PATCH] revision: disable min_age optimization with line-log

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If one of the options --before, --min-age or --until is given,
limit_list() filters out younger commits early on.  Line-log needs all
those commits to trace the movement of line ranges, though.  Skip this
optimization if both are used together.

Reported-by: Мария Долгополова <dolgopolovamariia@xxxxxxxxx>
Signed-off-by: René Scharfe <l.s.r@xxxxxx>
---
Needs careful review -- I'm not familiar with that the line-log code and
the revision traversal machinery is a bit scary.  AFAIU the min_age
check is done again in get_commit_action(), so this patch shouldn't
cause underage commits to be shown, but I'm not sure.  Test coverage for
the three options is spotty. :-/

 revision.c          | 3 ++-
 t/t4211-line-log.sh | 8 ++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/revision.c b/revision.c
index ebb4d2a0f2..3bdc1bbf2a 100644
--- a/revision.c
+++ b/revision.c
@@ -1410,7 +1410,8 @@ static int limit_list(struct rev_info *revs)
 				continue;
 			break;
 		}
-		if (revs->min_age != -1 && (commit->date > revs->min_age))
+		if (revs->min_age != -1 && (commit->date > revs->min_age) &&
+		    !revs->line_level_traverse)
 			continue;
 		date = commit->date;
 		p = &commit_list_insert(commit, p)->next;
diff --git a/t/t4211-line-log.sh b/t/t4211-line-log.sh
index 1428eae262..e186c83250 100755
--- a/t/t4211-line-log.sh
+++ b/t/t4211-line-log.sh
@@ -240,10 +240,12 @@ test_expect_success 'setup for checking line-log and parent oids' '
 	EOF
 	git add file.c &&
 	test_tick &&
+	first_tick=$test_tick &&
 	git commit -m "Add func1() and func2() in file.c" &&

 	echo 1 >other-file &&
 	git add other-file &&
+	test_tick &&
 	git commit -m "Add other-file" &&

 	sed -e "s/F1/F1 + 1/" file.c >tmp &&
@@ -283,4 +285,10 @@ test_expect_success 'parent oids with parent rewriting' '
 	test_cmp expect actual
 '

+test_expect_success 'line-log with --before' '
+	echo $root_oid >expect &&
+	git log --format=%h --no-patch -L:func2:file.c --before=$first_tick >actual &&
+	test_cmp expect actual
+'
+
 test_done
--
2.27.0




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