From c8bae7493d2f2910b57f13ded012e86bdcfb0532 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 16:47:53 +0200
Subject: Adding upstream version 1:2.39.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 t/t7900-maintenance.sh | 803 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 803 insertions(+)
 create mode 100755 t/t7900-maintenance.sh

(limited to 't/t7900-maintenance.sh')

diff --git a/t/t7900-maintenance.sh b/t/t7900-maintenance.sh
new file mode 100755
index 0000000..823331e
--- /dev/null
+++ b/t/t7900-maintenance.sh
@@ -0,0 +1,803 @@
+#!/bin/sh
+
+test_description='git maintenance builtin'
+
+. ./test-lib.sh
+
+GIT_TEST_COMMIT_GRAPH=0
+GIT_TEST_MULTI_PACK_INDEX=0
+
+test_lazy_prereq XMLLINT '
+	xmllint --version
+'
+
+test_xmllint () {
+	if test_have_prereq XMLLINT
+	then
+		xmllint --noout "$@"
+	else
+		true
+	fi
+}
+
+test_lazy_prereq SYSTEMD_ANALYZE '
+	systemd-analyze verify /lib/systemd/system/basic.target
+'
+
+test_systemd_analyze_verify () {
+	if test_have_prereq SYSTEMD_ANALYZE
+	then
+		systemd-analyze verify "$@"
+	fi
+}
+
+test_expect_success 'help text' '
+	test_expect_code 129 git maintenance -h >actual &&
+	test_i18ngrep "usage: git maintenance <subcommand>" actual &&
+	test_expect_code 129 git maintenance barf 2>err &&
+	test_i18ngrep "unknown subcommand: \`barf'\''" err &&
+	test_i18ngrep "usage: git maintenance" err &&
+	test_expect_code 129 git maintenance 2>err &&
+	test_i18ngrep "error: need a subcommand" err &&
+	test_i18ngrep "usage: git maintenance" err
+'
+
+test_expect_success 'run [--auto|--quiet]' '
+	GIT_TRACE2_EVENT="$(pwd)/run-no-auto.txt" \
+		git maintenance run 2>/dev/null &&
+	GIT_TRACE2_EVENT="$(pwd)/run-auto.txt" \
+		git maintenance run --auto 2>/dev/null &&
+	GIT_TRACE2_EVENT="$(pwd)/run-no-quiet.txt" \
+		git maintenance run --no-quiet 2>/dev/null &&
+	test_subcommand git gc --quiet <run-no-auto.txt &&
+	test_subcommand ! git gc --auto --quiet <run-auto.txt &&
+	test_subcommand git gc --no-quiet <run-no-quiet.txt
+'
+
+test_expect_success 'maintenance.auto config option' '
+	GIT_TRACE2_EVENT="$(pwd)/default" git commit --quiet --allow-empty -m 1 &&
+	test_subcommand git maintenance run --auto --quiet <default &&
+	GIT_TRACE2_EVENT="$(pwd)/true" \
+		git -c maintenance.auto=true \
+		commit --quiet --allow-empty -m 2 &&
+	test_subcommand git maintenance run --auto --quiet  <true &&
+	GIT_TRACE2_EVENT="$(pwd)/false" \
+		git -c maintenance.auto=false \
+		commit --quiet --allow-empty -m 3 &&
+	test_subcommand ! git maintenance run --auto --quiet  <false
+'
+
+test_expect_success 'maintenance.<task>.enabled' '
+	git config maintenance.gc.enabled false &&
+	git config maintenance.commit-graph.enabled true &&
+	GIT_TRACE2_EVENT="$(pwd)/run-config.txt" git maintenance run 2>err &&
+	test_subcommand ! git gc --quiet <run-config.txt &&
+	test_subcommand git commit-graph write --split --reachable --no-progress <run-config.txt
+'
+
+test_expect_success 'run --task=<task>' '
+	GIT_TRACE2_EVENT="$(pwd)/run-commit-graph.txt" \
+		git maintenance run --task=commit-graph 2>/dev/null &&
+	GIT_TRACE2_EVENT="$(pwd)/run-gc.txt" \
+		git maintenance run --task=gc 2>/dev/null &&
+	GIT_TRACE2_EVENT="$(pwd)/run-commit-graph.txt" \
+		git maintenance run --task=commit-graph 2>/dev/null &&
+	GIT_TRACE2_EVENT="$(pwd)/run-both.txt" \
+		git maintenance run --task=commit-graph --task=gc 2>/dev/null &&
+	test_subcommand ! git gc --quiet <run-commit-graph.txt &&
+	test_subcommand git gc --quiet <run-gc.txt &&
+	test_subcommand git gc --quiet <run-both.txt &&
+	test_subcommand git commit-graph write --split --reachable --no-progress <run-commit-graph.txt &&
+	test_subcommand ! git commit-graph write --split --reachable --no-progress <run-gc.txt &&
+	test_subcommand git commit-graph write --split --reachable --no-progress <run-both.txt
+'
+
+test_expect_success 'core.commitGraph=false prevents write process' '
+	GIT_TRACE2_EVENT="$(pwd)/no-commit-graph.txt" \
+		git -c core.commitGraph=false maintenance run \
+		--task=commit-graph 2>/dev/null &&
+	test_subcommand ! git commit-graph write --split --reachable --no-progress \
+		<no-commit-graph.txt
+'
+
+test_expect_success 'commit-graph auto condition' '
+	COMMAND="maintenance run --task=commit-graph --auto --quiet" &&
+
+	GIT_TRACE2_EVENT="$(pwd)/cg-no.txt" \
+		git -c maintenance.commit-graph.auto=1 $COMMAND &&
+	GIT_TRACE2_EVENT="$(pwd)/cg-negative-means-yes.txt" \
+		git -c maintenance.commit-graph.auto="-1" $COMMAND &&
+
+	test_commit first &&
+
+	GIT_TRACE2_EVENT="$(pwd)/cg-zero-means-no.txt" \
+		git -c maintenance.commit-graph.auto=0 $COMMAND &&
+	GIT_TRACE2_EVENT="$(pwd)/cg-one-satisfied.txt" \
+		git -c maintenance.commit-graph.auto=1 $COMMAND &&
+
+	git commit --allow-empty -m "second" &&
+	git commit --allow-empty -m "third" &&
+
+	GIT_TRACE2_EVENT="$(pwd)/cg-two-satisfied.txt" \
+		git -c maintenance.commit-graph.auto=2 $COMMAND &&
+
+	COMMIT_GRAPH_WRITE="git commit-graph write --split --reachable --no-progress" &&
+	test_subcommand ! $COMMIT_GRAPH_WRITE <cg-no.txt &&
+	test_subcommand $COMMIT_GRAPH_WRITE <cg-negative-means-yes.txt &&
+	test_subcommand ! $COMMIT_GRAPH_WRITE <cg-zero-means-no.txt &&
+	test_subcommand $COMMIT_GRAPH_WRITE <cg-one-satisfied.txt &&
+	test_subcommand $COMMIT_GRAPH_WRITE <cg-two-satisfied.txt
+'
+
+test_expect_success 'run --task=bogus' '
+	test_must_fail git maintenance run --task=bogus 2>err &&
+	test_i18ngrep "is not a valid task" err
+'
+
+test_expect_success 'run --task duplicate' '
+	test_must_fail git maintenance run --task=gc --task=gc 2>err &&
+	test_i18ngrep "cannot be selected multiple times" err
+'
+
+test_expect_success 'run --task=prefetch with no remotes' '
+	git maintenance run --task=prefetch 2>err &&
+	test_must_be_empty err
+'
+
+test_expect_success 'prefetch multiple remotes' '
+	git clone . clone1 &&
+	git clone . clone2 &&
+	git remote add remote1 "file://$(pwd)/clone1" &&
+	git remote add remote2 "file://$(pwd)/clone2" &&
+	git -C clone1 switch -c one &&
+	git -C clone2 switch -c two &&
+	test_commit -C clone1 one &&
+	test_commit -C clone2 two &&
+	GIT_TRACE2_EVENT="$(pwd)/run-prefetch.txt" git maintenance run --task=prefetch 2>/dev/null &&
+	fetchargs="--prefetch --prune --no-tags --no-write-fetch-head --recurse-submodules=no --quiet" &&
+	test_subcommand git fetch remote1 $fetchargs <run-prefetch.txt &&
+	test_subcommand git fetch remote2 $fetchargs <run-prefetch.txt &&
+	test_path_is_missing .git/refs/remotes &&
+	git log prefetch/remotes/remote1/one &&
+	git log prefetch/remotes/remote2/two &&
+	git fetch --all &&
+	test_cmp_rev refs/remotes/remote1/one refs/prefetch/remotes/remote1/one &&
+	test_cmp_rev refs/remotes/remote2/two refs/prefetch/remotes/remote2/two &&
+
+	git log --oneline --decorate --all >log &&
+	! grep "prefetch" log &&
+
+	test_when_finished git config --unset remote.remote1.skipFetchAll &&
+	git config remote.remote1.skipFetchAll true &&
+	GIT_TRACE2_EVENT="$(pwd)/skip-remote1.txt" git maintenance run --task=prefetch 2>/dev/null &&
+	test_subcommand ! git fetch remote1 $fetchargs <skip-remote1.txt &&
+	test_subcommand git fetch remote2 $fetchargs <skip-remote1.txt
+'
+
+test_expect_success 'loose-objects task' '
+	# Repack everything so we know the state of the object dir
+	git repack -adk &&
+
+	# Hack to stop maintenance from running during "git commit"
+	echo in use >.git/objects/maintenance.lock &&
+
+	# Assuming that "git commit" creates at least one loose object
+	test_commit create-loose-object &&
+	rm .git/objects/maintenance.lock &&
+
+	ls .git/objects >obj-dir-before &&
+	test_file_not_empty obj-dir-before &&
+	ls .git/objects/pack/*.pack >packs-before &&
+	test_line_count = 1 packs-before &&
+
+	# The first run creates a pack-file
+	# but does not delete loose objects.
+	git maintenance run --task=loose-objects &&
+	ls .git/objects >obj-dir-between &&
+	test_cmp obj-dir-before obj-dir-between &&
+	ls .git/objects/pack/*.pack >packs-between &&
+	test_line_count = 2 packs-between &&
+	ls .git/objects/pack/loose-*.pack >loose-packs &&
+	test_line_count = 1 loose-packs &&
+
+	# The second run deletes loose objects
+	# but does not create a pack-file.
+	git maintenance run --task=loose-objects &&
+	ls .git/objects >obj-dir-after &&
+	cat >expect <<-\EOF &&
+	info
+	pack
+	EOF
+	test_cmp expect obj-dir-after &&
+	ls .git/objects/pack/*.pack >packs-after &&
+	test_cmp packs-between packs-after
+'
+
+test_expect_success 'maintenance.loose-objects.auto' '
+	git repack -adk &&
+	GIT_TRACE2_EVENT="$(pwd)/trace-lo1.txt" \
+		git -c maintenance.loose-objects.auto=1 maintenance \
+		run --auto --task=loose-objects 2>/dev/null &&
+	test_subcommand ! git prune-packed --quiet <trace-lo1.txt &&
+	printf data-A | git hash-object -t blob --stdin -w &&
+	GIT_TRACE2_EVENT="$(pwd)/trace-loA" \
+		git -c maintenance.loose-objects.auto=2 \
+		maintenance run --auto --task=loose-objects 2>/dev/null &&
+	test_subcommand ! git prune-packed --quiet <trace-loA &&
+	printf data-B | git hash-object -t blob --stdin -w &&
+	GIT_TRACE2_EVENT="$(pwd)/trace-loB" \
+		git -c maintenance.loose-objects.auto=2 \
+		maintenance run --auto --task=loose-objects 2>/dev/null &&
+	test_subcommand git prune-packed --quiet <trace-loB &&
+	GIT_TRACE2_EVENT="$(pwd)/trace-loC" \
+		git -c maintenance.loose-objects.auto=2 \
+		maintenance run --auto --task=loose-objects 2>/dev/null &&
+	test_subcommand git prune-packed --quiet <trace-loC
+'
+
+test_expect_success 'incremental-repack task' '
+	packDir=.git/objects/pack &&
+	for i in $(test_seq 1 5)
+	do
+		test_commit $i || return 1
+	done &&
+
+	# Create three disjoint pack-files with size BIG, small, small.
+	echo HEAD~2 | git pack-objects --revs $packDir/test-1 &&
+	test_tick &&
+	git pack-objects --revs $packDir/test-2 <<-\EOF &&
+	HEAD~1
+	^HEAD~2
+	EOF
+	test_tick &&
+	git pack-objects --revs $packDir/test-3 <<-\EOF &&
+	HEAD
+	^HEAD~1
+	EOF
+
+	# Delete refs that have not been repacked in these packs.
+	git for-each-ref --format="delete %(refname)" \
+		refs/prefetch refs/tags refs/remotes >refs &&
+	git update-ref --stdin <refs &&
+
+	# Replace the object directory with this pack layout.
+	rm -f $packDir/pack-* &&
+	rm -f $packDir/loose-* &&
+	ls $packDir/*.pack >packs-before &&
+	test_line_count = 3 packs-before &&
+
+	# make sure we do not have any broken refs that were
+	# missed in the deletion above
+	git for-each-ref &&
+
+	# the job repacks the two into a new pack, but does not
+	# delete the old ones.
+	git maintenance run --task=incremental-repack &&
+	ls $packDir/*.pack >packs-between &&
+	test_line_count = 4 packs-between &&
+
+	# the job deletes the two old packs, and does not write
+	# a new one because the batch size is not high enough to
+	# pack the largest pack-file.
+	git maintenance run --task=incremental-repack &&
+	ls .git/objects/pack/*.pack >packs-after &&
+	test_line_count = 2 packs-after
+'
+
+test_expect_success EXPENSIVE 'incremental-repack 2g limit' '
+	test_config core.compression 0 &&
+
+	for i in $(test_seq 1 5)
+	do
+		test-tool genrandom foo$i $((512 * 1024 * 1024 + 1)) >>big ||
+		return 1
+	done &&
+	git add big &&
+	git commit -qm "Add big file (1)" &&
+
+	# ensure any possible loose objects are in a pack-file
+	git maintenance run --task=loose-objects &&
+
+	rm big &&
+	for i in $(test_seq 6 10)
+	do
+		test-tool genrandom foo$i $((512 * 1024 * 1024 + 1)) >>big ||
+		return 1
+	done &&
+	git add big &&
+	git commit -qm "Add big file (2)" &&
+
+	# ensure any possible loose objects are in a pack-file
+	git maintenance run --task=loose-objects &&
+
+	# Now run the incremental-repack task and check the batch-size
+	GIT_TRACE2_EVENT="$(pwd)/run-2g.txt" git maintenance run \
+		--task=incremental-repack 2>/dev/null &&
+	test_subcommand git multi-pack-index repack \
+		 --no-progress --batch-size=2147483647 <run-2g.txt
+'
+
+run_incremental_repack_and_verify () {
+	test_commit A &&
+	git repack -adk &&
+	git multi-pack-index write &&
+	GIT_TRACE2_EVENT="$(pwd)/midx-init.txt" git \
+		-c maintenance.incremental-repack.auto=1 \
+		maintenance run --auto --task=incremental-repack 2>/dev/null &&
+	test_subcommand ! git multi-pack-index write --no-progress <midx-init.txt &&
+	test_commit B &&
+	git pack-objects --revs .git/objects/pack/pack <<-\EOF &&
+	HEAD
+	^HEAD~1
+	EOF
+	GIT_TRACE2_EVENT=$(pwd)/trace-A git \
+		-c maintenance.incremental-repack.auto=2 \
+		maintenance run --auto --task=incremental-repack 2>/dev/null &&
+	test_subcommand ! git multi-pack-index write --no-progress <trace-A &&
+	test_commit C &&
+	git pack-objects --revs .git/objects/pack/pack <<-\EOF &&
+	HEAD
+	^HEAD~1
+	EOF
+	GIT_TRACE2_EVENT=$(pwd)/trace-B git \
+		-c maintenance.incremental-repack.auto=2 \
+		maintenance run --auto --task=incremental-repack 2>/dev/null &&
+	test_subcommand git multi-pack-index write --no-progress <trace-B
+}
+
+test_expect_success 'maintenance.incremental-repack.auto' '
+	rm -rf incremental-repack-true &&
+	git init incremental-repack-true &&
+	(
+		cd incremental-repack-true &&
+		git config core.multiPackIndex true &&
+		run_incremental_repack_and_verify
+	)
+'
+
+test_expect_success 'maintenance.incremental-repack.auto (when config is unset)' '
+	rm -rf incremental-repack-unset &&
+	git init incremental-repack-unset &&
+	(
+		cd incremental-repack-unset &&
+		test_unconfig core.multiPackIndex &&
+		run_incremental_repack_and_verify
+	)
+'
+
+test_expect_success 'pack-refs task' '
+	for n in $(test_seq 1 5)
+	do
+		git branch -f to-pack/$n HEAD || return 1
+	done &&
+	GIT_TRACE2_EVENT="$(pwd)/pack-refs.txt" \
+		git maintenance run --task=pack-refs &&
+	test_subcommand git pack-refs --all --prune <pack-refs.txt
+'
+
+test_expect_success '--auto and --schedule incompatible' '
+	test_must_fail git maintenance run --auto --schedule=daily 2>err &&
+	test_i18ngrep "at most one" err
+'
+
+test_expect_success 'invalid --schedule value' '
+	test_must_fail git maintenance run --schedule=annually 2>err &&
+	test_i18ngrep "unrecognized --schedule" err
+'
+
+test_expect_success '--schedule inheritance weekly -> daily -> hourly' '
+	git config maintenance.loose-objects.enabled true &&
+	git config maintenance.loose-objects.schedule hourly &&
+	git config maintenance.commit-graph.enabled true &&
+	git config maintenance.commit-graph.schedule daily &&
+	git config maintenance.incremental-repack.enabled true &&
+	git config maintenance.incremental-repack.schedule weekly &&
+
+	GIT_TRACE2_EVENT="$(pwd)/hourly.txt" \
+		git maintenance run --schedule=hourly 2>/dev/null &&
+	test_subcommand git prune-packed --quiet <hourly.txt &&
+	test_subcommand ! git commit-graph write --split --reachable \
+		--no-progress <hourly.txt &&
+	test_subcommand ! git multi-pack-index write --no-progress <hourly.txt &&
+
+	GIT_TRACE2_EVENT="$(pwd)/daily.txt" \
+		git maintenance run --schedule=daily 2>/dev/null &&
+	test_subcommand git prune-packed --quiet <daily.txt &&
+	test_subcommand git commit-graph write --split --reachable \
+		--no-progress <daily.txt &&
+	test_subcommand ! git multi-pack-index write --no-progress <daily.txt &&
+
+	GIT_TRACE2_EVENT="$(pwd)/weekly.txt" \
+		git maintenance run --schedule=weekly 2>/dev/null &&
+	test_subcommand git prune-packed --quiet <weekly.txt &&
+	test_subcommand git commit-graph write --split --reachable \
+		--no-progress <weekly.txt &&
+	test_subcommand git multi-pack-index write --no-progress <weekly.txt
+'
+
+test_expect_success 'maintenance.strategy inheritance' '
+	for task in commit-graph loose-objects incremental-repack
+	do
+		git config --unset maintenance.$task.schedule || return 1
+	done &&
+
+	test_when_finished git config --unset maintenance.strategy &&
+	git config maintenance.strategy incremental &&
+
+	GIT_TRACE2_EVENT="$(pwd)/incremental-hourly.txt" \
+		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 &&
+	git config maintenance.loose-objects.schedule hourly &&
+	git config maintenance.incremental-repack.enabled false &&
+
+	GIT_TRACE2_EVENT="$(pwd)/modified-hourly.txt" \
+		git maintenance run --schedule=hourly --quiet &&
+	GIT_TRACE2_EVENT="$(pwd)/modified-daily.txt" \
+		git maintenance run --schedule=daily --quiet &&
+
+	test_subcommand ! git commit-graph write --split --reachable \
+		--no-progress <modified-hourly.txt &&
+	test_subcommand git prune-packed --quiet <modified-hourly.txt &&
+	test_subcommand ! git multi-pack-index write --no-progress \
+		<modified-hourly.txt &&
+
+	test_subcommand git commit-graph write --split --reachable \
+		--no-progress <modified-daily.txt &&
+	test_subcommand git prune-packed --quiet <modified-daily.txt &&
+	test_subcommand ! git multi-pack-index write --no-progress \
+		<modified-daily.txt
+'
+
+test_expect_success 'register and unregister' '
+	test_when_finished git config --global --unset-all maintenance.repo &&
+
+	test_must_fail git maintenance unregister 2>err &&
+	grep "is not registered" err &&
+	git maintenance unregister --force &&
+
+	git config --global --add maintenance.repo /existing1 &&
+	git config --global --add maintenance.repo /existing2 &&
+	git config --global --get-all maintenance.repo >before &&
+
+	git maintenance register &&
+	test_cmp_config false maintenance.auto &&
+	git config --global --get-all maintenance.repo >between &&
+	cp before expect &&
+	pwd >>expect &&
+	test_cmp expect between &&
+
+	git maintenance unregister &&
+	git config --global --get-all maintenance.repo >actual &&
+	test_cmp before actual &&
+
+	git config --file ./other --add maintenance.repo /existing1 &&
+	git config --file ./other --add maintenance.repo /existing2 &&
+	git config --file ./other --get-all maintenance.repo >before &&
+
+	git maintenance register --config-file ./other &&
+	test_cmp_config false maintenance.auto &&
+	git config --file ./other --get-all maintenance.repo >between &&
+	cp before expect &&
+	pwd >>expect &&
+	test_cmp expect between &&
+
+	git maintenance unregister --config-file ./other &&
+	git config --file ./other --get-all maintenance.repo >actual &&
+	test_cmp before actual &&
+
+	test_must_fail git maintenance unregister 2>err &&
+	grep "is not registered" err &&
+	git maintenance unregister --force &&
+
+	test_must_fail git maintenance unregister --config-file ./other 2>err &&
+	grep "is not registered" err &&
+	git maintenance unregister --config-file ./other --force
+'
+
+test_expect_success !MINGW 'register and unregister with regex metacharacters' '
+	META="a+b*c" &&
+	git init "$META" &&
+	git -C "$META" maintenance register &&
+	git config --get-all --show-origin maintenance.repo &&
+	git config --get-all --global --fixed-value \
+		maintenance.repo "$(pwd)/$META" &&
+	git -C "$META" maintenance unregister &&
+	test_must_fail git config --get-all --global --fixed-value \
+		maintenance.repo "$(pwd)/$META"
+'
+
+test_expect_success 'start --scheduler=<scheduler>' '
+	test_expect_code 129 git maintenance start --scheduler=foo 2>err &&
+	test_i18ngrep "unrecognized --scheduler argument" err &&
+
+	test_expect_code 129 git maintenance start --no-scheduler 2>err &&
+	test_i18ngrep "unknown option" err &&
+
+	test_expect_code 128 \
+		env GIT_TEST_MAINT_SCHEDULER="launchctl:true,schtasks:true" \
+		git maintenance start --scheduler=crontab 2>err &&
+	test_i18ngrep "fatal: crontab scheduler is not available" err
+'
+
+test_expect_success 'start from empty cron table' '
+	GIT_TEST_MAINT_SCHEDULER="crontab:test-tool crontab cron.txt" git maintenance start --scheduler=crontab &&
+
+	# start registers the repo
+	git config --get --global --fixed-value maintenance.repo "$(pwd)" &&
+
+	grep "for-each-repo --config=maintenance.repo maintenance run --schedule=daily" cron.txt &&
+	grep "for-each-repo --config=maintenance.repo maintenance run --schedule=hourly" cron.txt &&
+	grep "for-each-repo --config=maintenance.repo maintenance run --schedule=weekly" cron.txt
+'
+
+test_expect_success 'stop from existing schedule' '
+	GIT_TEST_MAINT_SCHEDULER="crontab:test-tool crontab cron.txt" git maintenance stop &&
+
+	# stop does not unregister the repo
+	git config --get --global --fixed-value maintenance.repo "$(pwd)" &&
+
+	# Operation is idempotent
+	GIT_TEST_MAINT_SCHEDULER="crontab:test-tool crontab cron.txt" git maintenance stop &&
+	test_must_be_empty cron.txt
+'
+
+test_expect_success 'start preserves existing schedule' '
+	echo "Important information!" >cron.txt &&
+	GIT_TEST_MAINT_SCHEDULER="crontab:test-tool crontab cron.txt" git maintenance start --scheduler=crontab &&
+	grep "Important information!" cron.txt
+'
+
+test_expect_success 'magic markers are correct' '
+	grep "GIT MAINTENANCE SCHEDULE" cron.txt >actual &&
+	cat >expect <<-\EOF &&
+	# BEGIN GIT MAINTENANCE SCHEDULE
+	# END GIT MAINTENANCE SCHEDULE
+	EOF
+	test_cmp actual expect
+'
+
+test_expect_success 'stop preserves surrounding schedule' '
+	echo "Crucial information!" >>cron.txt &&
+	GIT_TEST_MAINT_SCHEDULER="crontab:test-tool crontab cron.txt" git maintenance stop &&
+	grep "Important information!" cron.txt &&
+	grep "Crucial information!" cron.txt
+'
+
+test_expect_success 'start and stop macOS maintenance' '
+	# ensure $HOME can be compared against hook arguments on all platforms
+	pfx=$(cd "$HOME" && pwd) &&
+
+	write_script print-args <<-\EOF &&
+	echo $* | sed "s:gui/[0-9][0-9]*:gui/[UID]:" >>args
+	EOF
+
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER=launchctl:./print-args git maintenance start --scheduler=launchctl &&
+
+	# start registers the repo
+	git config --get --global --fixed-value maintenance.repo "$(pwd)" &&
+
+	ls "$HOME/Library/LaunchAgents" >actual &&
+	cat >expect <<-\EOF &&
+	org.git-scm.git.daily.plist
+	org.git-scm.git.hourly.plist
+	org.git-scm.git.weekly.plist
+	EOF
+	test_cmp expect actual &&
+
+	rm -f expect &&
+	for frequency in hourly daily weekly
+	do
+		PLIST="$pfx/Library/LaunchAgents/org.git-scm.git.$frequency.plist" &&
+		test_xmllint "$PLIST" &&
+		grep schedule=$frequency "$PLIST" &&
+		echo "bootout gui/[UID] $PLIST" >>expect &&
+		echo "bootstrap gui/[UID] $PLIST" >>expect || return 1
+	done &&
+	test_cmp expect args &&
+
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER=launchctl:./print-args git maintenance stop &&
+
+	# stop does not unregister the repo
+	git config --get --global --fixed-value maintenance.repo "$(pwd)" &&
+
+	printf "bootout gui/[UID] $pfx/Library/LaunchAgents/org.git-scm.git.%s.plist\n" \
+		hourly daily weekly >expect &&
+	test_cmp expect args &&
+	ls "$HOME/Library/LaunchAgents" >actual &&
+	test_line_count = 0 actual
+'
+
+test_expect_success 'use launchctl list to prevent extra work' '
+	# ensure we are registered
+	GIT_TEST_MAINT_SCHEDULER=launchctl:./print-args git maintenance start --scheduler=launchctl &&
+
+	# do it again on a fresh args file
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER=launchctl:./print-args git maintenance start --scheduler=launchctl &&
+
+	ls "$HOME/Library/LaunchAgents" >actual &&
+	cat >expect <<-\EOF &&
+	list org.git-scm.git.hourly
+	list org.git-scm.git.daily
+	list org.git-scm.git.weekly
+	EOF
+	test_cmp expect args
+'
+
+test_expect_success 'start and stop Windows maintenance' '
+	write_script print-args <<-\EOF &&
+	echo $* >>args
+	while test $# -gt 0
+	do
+		case "$1" in
+		/xml) shift; xmlfile=$1; break ;;
+		*) shift ;;
+		esac
+	done
+	test -z "$xmlfile" || cp "$xmlfile" "$xmlfile.xml"
+	EOF
+
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER="schtasks:./print-args" git maintenance start --scheduler=schtasks &&
+
+	# start registers the repo
+	git config --get --global --fixed-value maintenance.repo "$(pwd)" &&
+
+	for frequency in hourly daily weekly
+	do
+		grep "/create /tn Git Maintenance ($frequency) /f /xml" args &&
+		file=$(ls .git/schedule_${frequency}*.xml) &&
+		test_xmllint "$file" || return 1
+	done &&
+
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER="schtasks:./print-args" git maintenance stop &&
+
+	# stop does not unregister the repo
+	git config --get --global --fixed-value maintenance.repo "$(pwd)" &&
+
+	printf "/delete /tn Git Maintenance (%s) /f\n" \
+		hourly daily weekly >expect &&
+	test_cmp expect args
+'
+
+test_expect_success 'start and stop Linux/systemd maintenance' '
+	write_script print-args <<-\EOF &&
+	printf "%s\n" "$*" >>args
+	EOF
+
+	XDG_CONFIG_HOME="$PWD" &&
+	export XDG_CONFIG_HOME &&
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER="systemctl:./print-args" git maintenance start --scheduler=systemd-timer &&
+
+	# start registers the repo
+	git config --get --global --fixed-value maintenance.repo "$(pwd)" &&
+
+	test_systemd_analyze_verify "systemd/user/git-maintenance@.service" &&
+
+	printf -- "--user enable --now git-maintenance@%s.timer\n" hourly daily weekly >expect &&
+	test_cmp expect args &&
+
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER="systemctl:./print-args" git maintenance stop &&
+
+	# stop does not unregister the repo
+	git config --get --global --fixed-value maintenance.repo "$(pwd)" &&
+
+	test_path_is_missing "systemd/user/git-maintenance@.timer" &&
+	test_path_is_missing "systemd/user/git-maintenance@.service" &&
+
+	printf -- "--user disable --now git-maintenance@%s.timer\n" hourly daily weekly >expect &&
+	test_cmp expect args
+'
+
+test_expect_success 'start and stop when several schedulers are available' '
+	write_script print-args <<-\EOF &&
+	printf "%s\n" "$*" | sed "s:gui/[0-9][0-9]*:gui/[UID]:; s:\(schtasks /create .* /xml\).*:\1:;" >>args
+	EOF
+
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER="systemctl:./print-args systemctl,launchctl:./print-args launchctl,schtasks:./print-args schtasks" git maintenance start --scheduler=systemd-timer &&
+	printf "launchctl bootout gui/[UID] $pfx/Library/LaunchAgents/org.git-scm.git.%s.plist\n" \
+		hourly daily weekly >expect &&
+	printf "schtasks /delete /tn Git Maintenance (%s) /f\n" \
+		hourly daily weekly >>expect &&
+	printf -- "systemctl --user enable --now git-maintenance@%s.timer\n" hourly daily weekly >>expect &&
+	test_cmp expect args &&
+
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER="systemctl:./print-args systemctl,launchctl:./print-args launchctl,schtasks:./print-args schtasks" git maintenance start --scheduler=launchctl &&
+	printf -- "systemctl --user disable --now git-maintenance@%s.timer\n" hourly daily weekly >expect &&
+	printf "schtasks /delete /tn Git Maintenance (%s) /f\n" \
+		hourly daily weekly >>expect &&
+	for frequency in hourly daily weekly
+	do
+		PLIST="$pfx/Library/LaunchAgents/org.git-scm.git.$frequency.plist" &&
+		echo "launchctl bootout gui/[UID] $PLIST" >>expect &&
+		echo "launchctl bootstrap gui/[UID] $PLIST" >>expect || return 1
+	done &&
+	test_cmp expect args &&
+
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER="systemctl:./print-args systemctl,launchctl:./print-args launchctl,schtasks:./print-args schtasks" git maintenance start --scheduler=schtasks &&
+	printf -- "systemctl --user disable --now git-maintenance@%s.timer\n" hourly daily weekly >expect &&
+	printf "launchctl bootout gui/[UID] $pfx/Library/LaunchAgents/org.git-scm.git.%s.plist\n" \
+		hourly daily weekly >>expect &&
+	printf "schtasks /create /tn Git Maintenance (%s) /f /xml\n" \
+		hourly daily weekly >>expect &&
+	test_cmp expect args &&
+
+	rm -f args &&
+	GIT_TEST_MAINT_SCHEDULER="systemctl:./print-args systemctl,launchctl:./print-args launchctl,schtasks:./print-args schtasks" git maintenance stop &&
+	printf -- "systemctl --user disable --now git-maintenance@%s.timer\n" hourly daily weekly >expect &&
+	printf "launchctl bootout gui/[UID] $pfx/Library/LaunchAgents/org.git-scm.git.%s.plist\n" \
+		hourly daily weekly >>expect &&
+	printf "schtasks /delete /tn Git Maintenance (%s) /f\n" \
+		hourly daily weekly >>expect &&
+	test_cmp expect args
+'
+
+test_expect_success 'register preserves existing strategy' '
+	git config maintenance.strategy none &&
+	git maintenance register &&
+	test_config maintenance.strategy none &&
+	git config --unset maintenance.strategy &&
+	git maintenance register &&
+	test_config maintenance.strategy incremental
+'
+
+test_expect_success 'fails when running outside of a repository' '
+	nongit test_must_fail git maintenance run &&
+	nongit test_must_fail git maintenance stop &&
+	nongit test_must_fail git maintenance start &&
+	nongit test_must_fail git maintenance register &&
+	nongit test_must_fail git maintenance unregister
+'
+
+test_expect_success 'register and unregister bare repo' '
+	test_when_finished "git config --global --unset-all maintenance.repo || :" &&
+	test_might_fail git config --global --unset-all maintenance.repo &&
+	git init --bare barerepo &&
+	(
+		cd barerepo &&
+		git maintenance register &&
+		git config --get --global --fixed-value maintenance.repo "$(pwd)" &&
+		git maintenance unregister &&
+		test_must_fail git config --global --get-all maintenance.repo
+	)
+'
+
+test_done
-- 
cgit v1.2.3