[PATCH 2/2] maintenance: incremental strategy runs pack-refs weekly

["Derrick Stolee via GitGitGadget" <gitgitgadget@gmail.com>]

From: Derrick Stolee <dstolee@microsoft.com>

When the 'maintenance.strategy' config option is set to 'incremental',
a default maintenance schedule is enabled. Add the 'pack-refs' task to
that strategy at the weekly cadence.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
 Documentation/config/maintenance.txt |  5 +++--
 builtin/gc.c                         |  2 ++
 t/t7900-maintenance.sh               | 14 ++++++++++++++
 3 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/Documentation/config/maintenance.txt b/Documentation/config/maintenance.txt
index a5ead09e4bc2..18f056213145 100644
--- a/Documentation/config/maintenance.txt
+++ b/Documentation/config/maintenance.txt
@@ -15,8 +15,9 @@ maintenance.strategy::
 * `none`: This default setting implies no task are run at any schedule.
 * `incremental`: This setting optimizes for performing small maintenance
   activities that do not delete any data. This does not schedule the `gc`
-  task, but runs the `prefetch` and `commit-graph` tasks hourly and the
-  `loose-objects` and `incremental-repack` tasks daily.
+  task, but runs the `prefetch` and `commit-graph` tasks hourly, the
+  `loose-objects` and `incremental-repack` tasks daily, and the `pack-refs`
+  task weekly.
 
 maintenance.<task>.enabled::
 	This boolean config option controls whether the maintenance task
diff --git a/builtin/gc.c b/builtin/gc.c
index 8f13c3bb8607..8d365a59d027 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -1352,6 +1352,8 @@ static void initialize_maintenance_strategy(void)
 		tasks[TASK_INCREMENTAL_REPACK].schedule = SCHEDULE_DAILY;
 		tasks[TASK_LOOSE_OBJECTS].enabled = 1;
 		tasks[TASK_LOOSE_OBJECTS].schedule = SCHEDULE_DAILY;
+		tasks[TASK_PACK_REFS].enabled = 1;
+		tasks[TASK_PACK_REFS].schedule = SCHEDULE_WEEKLY;
 	}
 }
 
diff --git a/t/t7900-maintenance.sh b/t/t7900-maintenance.sh
index ef4527823d29..fa92e01fb2c5 100755
--- a/t/t7900-maintenance.sh
+++ b/t/t7900-maintenance.sh
@@ -406,18 +406,32 @@ test_expect_success 'maintenance.strategy inheritance' '
 		git maintenance run --schedule=hourly --quiet &&
 	GIT_TRACE2_EVENT="$(pwd)/incremental-daily.txt" \
 		git maintenance run --schedule=daily --quiet &&
+	GIT_TRACE2_EVENT="$(pwd)/incremental-weekly.txt" \
+		git maintenance run --schedule=weekly --quiet &&
 
 	test_subcommand git commit-graph write --split --reachable \
 		--no-progress <incremental-hourly.txt &&
 	test_subcommand ! git prune-packed --quiet <incremental-hourly.txt &&
 	test_subcommand ! git multi-pack-index write --no-progress \
 		<incremental-hourly.txt &&
+	test_subcommand ! git pack-refs --all --prune \
+		<incremental-hourly.txt &&
 
 	test_subcommand git commit-graph write --split --reachable \
 		--no-progress <incremental-daily.txt &&
 	test_subcommand git prune-packed --quiet <incremental-daily.txt &&
 	test_subcommand git multi-pack-index write --no-progress \
 		<incremental-daily.txt &&
+	test_subcommand ! git pack-refs --all --prune \
+		<incremental-daily.txt &&
+
+	test_subcommand git commit-graph write --split --reachable \
+		--no-progress <incremental-weekly.txt &&
+	test_subcommand git prune-packed --quiet <incremental-weekly.txt &&
+	test_subcommand git multi-pack-index write --no-progress \
+		<incremental-weekly.txt &&
+	test_subcommand git pack-refs --all --prune \
+		<incremental-weekly.txt &&
 
 	# Modify defaults
 	git config maintenance.commit-graph.schedule daily &&
-- 
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