Merge branch 'ds/maintenance-part-4'

Follow-up on the "maintenance part-3" which introduced scheduled
maintenance tasks to support platforms whose native scheduling
methods are not 'cron'.

* ds/maintenance-part-4:
  maintenance: use Windows scheduled tasks
  maintenance: use launchctl on macOS
  maintenance: include 'cron' details in docs
  maintenance: extract platform-specific scheduling
This commit is contained in:
Junio C Hamano 2021-01-15 21:48:45 -08:00
commit b2ace18759
4 changed files with 617 additions and 36 deletions

View File

@ -218,6 +218,122 @@ Further, the `git gc` command should not be combined with
but does not take the lock in the same way as `git maintenance run`. If
possible, use `git maintenance run --task=gc` instead of `git gc`.
The following sections describe the mechanisms put in place to run
background maintenance by `git maintenance start` and how to customize
them.
BACKGROUND MAINTENANCE ON POSIX SYSTEMS
---------------------------------------
The standard mechanism for scheduling background tasks on POSIX systems
is cron(8). This tool executes commands based on a given schedule. The
current list of user-scheduled tasks can be found by running `crontab -l`.
The schedule written by `git maintenance start` is similar to this:
-----------------------------------------------------------------------
# BEGIN GIT MAINTENANCE SCHEDULE
# The following schedule was created by Git
# Any edits made in this region might be
# replaced in the future by a Git command.
0 1-23 * * * "/<path>/git" --exec-path="/<path>" for-each-repo --config=maintenance.repo maintenance run --schedule=hourly
0 0 * * 1-6 "/<path>/git" --exec-path="/<path>" for-each-repo --config=maintenance.repo maintenance run --schedule=daily
0 0 * * 0 "/<path>/git" --exec-path="/<path>" for-each-repo --config=maintenance.repo maintenance run --schedule=weekly
# END GIT MAINTENANCE SCHEDULE
-----------------------------------------------------------------------
The comments are used as a region to mark the schedule as written by Git.
Any modifications within this region will be completely deleted by
`git maintenance stop` or overwritten by `git maintenance start`.
The `crontab` entry specifies the full path of the `git` executable to
ensure that the executed `git` command is the same one with which
`git maintenance start` was issued independent of `PATH`. If the same user
runs `git maintenance start` with multiple Git executables, then only the
latest executable is used.
These commands use `git for-each-repo --config=maintenance.repo` to run
`git maintenance run --schedule=<frequency>` on each repository listed in
the multi-valued `maintenance.repo` config option. These are typically
loaded from the user-specific global config. The `git maintenance` process
then determines which maintenance tasks are configured to run on each
repository with each `<frequency>` using the `maintenance.<task>.schedule`
config options. These values are loaded from the global or repository
config values.
If the config values are insufficient to achieve your desired background
maintenance schedule, then you can create your own schedule. If you run
`crontab -e`, then an editor will load with your user-specific `cron`
schedule. In that editor, you can add your own schedule lines. You could
start by adapting the default schedule listed earlier, or you could read
the crontab(5) documentation for advanced scheduling techniques. Please
do use the full path and `--exec-path` techniques from the default
schedule to ensure you are executing the correct binaries in your
schedule.
BACKGROUND MAINTENANCE ON MACOS SYSTEMS
---------------------------------------
While macOS technically supports `cron`, using `crontab -e` requires
elevated privileges and the executed process does not have a full user
context. Without a full user context, Git and its credential helpers
cannot access stored credentials, so some maintenance tasks are not
functional.
Instead, `git maintenance start` interacts with the `launchctl` tool,
which is the recommended way to schedule timed jobs in macOS. Scheduling
maintenance through `git maintenance (start|stop)` requires some
`launchctl` features available only in macOS 10.11 or later.
Your user-specific scheduled tasks are stored as XML-formatted `.plist`
files in `~/Library/LaunchAgents/`. You can see the currently-registered
tasks using the following command:
-----------------------------------------------------------------------
$ ls ~/Library/LaunchAgents/org.git-scm.git*
org.git-scm.git.daily.plist
org.git-scm.git.hourly.plist
org.git-scm.git.weekly.plist
-----------------------------------------------------------------------
One task is registered for each `--schedule=<frequency>` option. To
inspect how the XML format describes each schedule, open one of these
`.plist` files in an editor and inspect the `<array>` element following
the `<key>StartCalendarInterval</key>` element.
`git maintenance start` will overwrite these files and register the
tasks again with `launchctl`, so any customizations should be done by
creating your own `.plist` files with distinct names. Similarly, the
`git maintenance stop` command will unregister the tasks with `launchctl`
and delete the `.plist` files.
To create more advanced customizations to your background tasks, see
launchctl.plist(5) for more information.
BACKGROUND MAINTENANCE ON WINDOWS SYSTEMS
-----------------------------------------
Windows does not support `cron` and instead has its own system for
scheduling background tasks. The `git maintenance start` command uses
the `schtasks` command to submit tasks to this system. You can inspect
all background tasks using the Task Scheduler application. The tasks
added by Git have names of the form `Git Maintenance (<frequency>)`.
The Task Scheduler GUI has ways to inspect these tasks, but you can also
export the tasks to XML files and view the details there.
Note that since Git is a console application, these background tasks
create a console window visible to the current user. This can be changed
manually by selecting the "Run whether user is logged in or not" option
in Task Scheduler. This change requires a password input, which is why
`git maintenance start` does not select it by default.
If you want to customize the background tasks, please rename the tasks
so future calls to `git maintenance (start|stop)` do not overwrite your
custom tasks.
GIT
---

View File

@ -1493,38 +1493,368 @@ static int maintenance_unregister(void)
return run_command(&config_unset);
}
static const char *get_frequency(enum schedule_priority schedule)
{
switch (schedule) {
case SCHEDULE_HOURLY:
return "hourly";
case SCHEDULE_DAILY:
return "daily";
case SCHEDULE_WEEKLY:
return "weekly";
default:
BUG("invalid schedule %d", schedule);
}
}
static char *launchctl_service_name(const char *frequency)
{
struct strbuf label = STRBUF_INIT;
strbuf_addf(&label, "org.git-scm.git.%s", frequency);
return strbuf_detach(&label, NULL);
}
static char *launchctl_service_filename(const char *name)
{
char *expanded;
struct strbuf filename = STRBUF_INIT;
strbuf_addf(&filename, "~/Library/LaunchAgents/%s.plist", name);
expanded = expand_user_path(filename.buf, 1);
if (!expanded)
die(_("failed to expand path '%s'"), filename.buf);
strbuf_release(&filename);
return expanded;
}
static char *launchctl_get_uid(void)
{
return xstrfmt("gui/%d", getuid());
}
static int launchctl_boot_plist(int enable, const char *filename, const char *cmd)
{
int result;
struct child_process child = CHILD_PROCESS_INIT;
char *uid = launchctl_get_uid();
strvec_split(&child.args, cmd);
if (enable)
strvec_push(&child.args, "bootstrap");
else
strvec_push(&child.args, "bootout");
strvec_push(&child.args, uid);
strvec_push(&child.args, filename);
child.no_stderr = 1;
child.no_stdout = 1;
if (start_command(&child))
die(_("failed to start launchctl"));
result = finish_command(&child);
free(uid);
return result;
}
static int launchctl_remove_plist(enum schedule_priority schedule, const char *cmd)
{
const char *frequency = get_frequency(schedule);
char *name = launchctl_service_name(frequency);
char *filename = launchctl_service_filename(name);
int result = launchctl_boot_plist(0, filename, cmd);
unlink(filename);
free(filename);
free(name);
return result;
}
static int launchctl_remove_plists(const char *cmd)
{
return launchctl_remove_plist(SCHEDULE_HOURLY, cmd) ||
launchctl_remove_plist(SCHEDULE_DAILY, cmd) ||
launchctl_remove_plist(SCHEDULE_WEEKLY, cmd);
}
static int launchctl_schedule_plist(const char *exec_path, enum schedule_priority schedule, const char *cmd)
{
FILE *plist;
int i;
const char *preamble, *repeat;
const char *frequency = get_frequency(schedule);
char *name = launchctl_service_name(frequency);
char *filename = launchctl_service_filename(name);
if (safe_create_leading_directories(filename))
die(_("failed to create directories for '%s'"), filename);
plist = xfopen(filename, "w");
preamble = "<?xml version=\"1.0\"?>\n"
"<!DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n"
"<plist version=\"1.0\">"
"<dict>\n"
"<key>Label</key><string>%s</string>\n"
"<key>ProgramArguments</key>\n"
"<array>\n"
"<string>%s/git</string>\n"
"<string>--exec-path=%s</string>\n"
"<string>for-each-repo</string>\n"
"<string>--config=maintenance.repo</string>\n"
"<string>maintenance</string>\n"
"<string>run</string>\n"
"<string>--schedule=%s</string>\n"
"</array>\n"
"<key>StartCalendarInterval</key>\n"
"<array>\n";
fprintf(plist, preamble, name, exec_path, exec_path, frequency);
switch (schedule) {
case SCHEDULE_HOURLY:
repeat = "<dict>\n"
"<key>Hour</key><integer>%d</integer>\n"
"<key>Minute</key><integer>0</integer>\n"
"</dict>\n";
for (i = 1; i <= 23; i++)
fprintf(plist, repeat, i);
break;
case SCHEDULE_DAILY:
repeat = "<dict>\n"
"<key>Day</key><integer>%d</integer>\n"
"<key>Hour</key><integer>0</integer>\n"
"<key>Minute</key><integer>0</integer>\n"
"</dict>\n";
for (i = 1; i <= 6; i++)
fprintf(plist, repeat, i);
break;
case SCHEDULE_WEEKLY:
fprintf(plist,
"<dict>\n"
"<key>Day</key><integer>0</integer>\n"
"<key>Hour</key><integer>0</integer>\n"
"<key>Minute</key><integer>0</integer>\n"
"</dict>\n");
break;
default:
/* unreachable */
break;
}
fprintf(plist, "</array>\n</dict>\n</plist>\n");
fclose(plist);
/* bootout might fail if not already running, so ignore */
launchctl_boot_plist(0, filename, cmd);
if (launchctl_boot_plist(1, filename, cmd))
die(_("failed to bootstrap service %s"), filename);
free(filename);
free(name);
return 0;
}
static int launchctl_add_plists(const char *cmd)
{
const char *exec_path = git_exec_path();
return launchctl_schedule_plist(exec_path, SCHEDULE_HOURLY, cmd) ||
launchctl_schedule_plist(exec_path, SCHEDULE_DAILY, cmd) ||
launchctl_schedule_plist(exec_path, SCHEDULE_WEEKLY, cmd);
}
static int launchctl_update_schedule(int run_maintenance, int fd, const char *cmd)
{
if (run_maintenance)
return launchctl_add_plists(cmd);
else
return launchctl_remove_plists(cmd);
}
static char *schtasks_task_name(const char *frequency)
{
struct strbuf label = STRBUF_INIT;
strbuf_addf(&label, "Git Maintenance (%s)", frequency);
return strbuf_detach(&label, NULL);
}
static int schtasks_remove_task(enum schedule_priority schedule, const char *cmd)
{
int result;
struct strvec args = STRVEC_INIT;
const char *frequency = get_frequency(schedule);
char *name = schtasks_task_name(frequency);
strvec_split(&args, cmd);
strvec_pushl(&args, "/delete", "/tn", name, "/f", NULL);
result = run_command_v_opt(args.v, 0);
strvec_clear(&args);
free(name);
return result;
}
static int schtasks_remove_tasks(const char *cmd)
{
return schtasks_remove_task(SCHEDULE_HOURLY, cmd) ||
schtasks_remove_task(SCHEDULE_DAILY, cmd) ||
schtasks_remove_task(SCHEDULE_WEEKLY, cmd);
}
static int schtasks_schedule_task(const char *exec_path, enum schedule_priority schedule, const char *cmd)
{
int result;
struct child_process child = CHILD_PROCESS_INIT;
const char *xml;
struct tempfile *tfile;
const char *frequency = get_frequency(schedule);
char *name = schtasks_task_name(frequency);
struct strbuf tfilename = STRBUF_INIT;
strbuf_addf(&tfilename, "%s/schedule_%s_XXXXXX",
get_git_common_dir(), frequency);
tfile = xmks_tempfile(tfilename.buf);
strbuf_release(&tfilename);
if (!fdopen_tempfile(tfile, "w"))
die(_("failed to create temp xml file"));
xml = "<?xml version=\"1.0\" ?>\n"
"<Task version=\"1.4\" xmlns=\"http://schemas.microsoft.com/windows/2004/02/mit/task\">\n"
"<Triggers>\n"
"<CalendarTrigger>\n";
fputs(xml, tfile->fp);
switch (schedule) {
case SCHEDULE_HOURLY:
fprintf(tfile->fp,
"<StartBoundary>2020-01-01T01:00:00</StartBoundary>\n"
"<Enabled>true</Enabled>\n"
"<ScheduleByDay>\n"
"<DaysInterval>1</DaysInterval>\n"
"</ScheduleByDay>\n"
"<Repetition>\n"
"<Interval>PT1H</Interval>\n"
"<Duration>PT23H</Duration>\n"
"<StopAtDurationEnd>false</StopAtDurationEnd>\n"
"</Repetition>\n");
break;
case SCHEDULE_DAILY:
fprintf(tfile->fp,
"<StartBoundary>2020-01-01T00:00:00</StartBoundary>\n"
"<Enabled>true</Enabled>\n"
"<ScheduleByWeek>\n"
"<DaysOfWeek>\n"
"<Monday />\n"
"<Tuesday />\n"
"<Wednesday />\n"
"<Thursday />\n"
"<Friday />\n"
"<Saturday />\n"
"</DaysOfWeek>\n"
"<WeeksInterval>1</WeeksInterval>\n"
"</ScheduleByWeek>\n");
break;
case SCHEDULE_WEEKLY:
fprintf(tfile->fp,
"<StartBoundary>2020-01-01T00:00:00</StartBoundary>\n"
"<Enabled>true</Enabled>\n"
"<ScheduleByWeek>\n"
"<DaysOfWeek>\n"
"<Sunday />\n"
"</DaysOfWeek>\n"
"<WeeksInterval>1</WeeksInterval>\n"
"</ScheduleByWeek>\n");
break;
default:
break;
}
xml = "</CalendarTrigger>\n"
"</Triggers>\n"
"<Principals>\n"
"<Principal id=\"Author\">\n"
"<LogonType>InteractiveToken</LogonType>\n"
"<RunLevel>LeastPrivilege</RunLevel>\n"
"</Principal>\n"
"</Principals>\n"
"<Settings>\n"
"<MultipleInstancesPolicy>IgnoreNew</MultipleInstancesPolicy>\n"
"<Enabled>true</Enabled>\n"
"<Hidden>true</Hidden>\n"
"<UseUnifiedSchedulingEngine>true</UseUnifiedSchedulingEngine>\n"
"<WakeToRun>false</WakeToRun>\n"
"<ExecutionTimeLimit>PT72H</ExecutionTimeLimit>\n"
"<Priority>7</Priority>\n"
"</Settings>\n"
"<Actions Context=\"Author\">\n"
"<Exec>\n"
"<Command>\"%s\\git.exe\"</Command>\n"
"<Arguments>--exec-path=\"%s\" for-each-repo --config=maintenance.repo maintenance run --schedule=%s</Arguments>\n"
"</Exec>\n"
"</Actions>\n"
"</Task>\n";
fprintf(tfile->fp, xml, exec_path, exec_path, frequency);
strvec_split(&child.args, cmd);
strvec_pushl(&child.args, "/create", "/tn", name, "/f", "/xml",
get_tempfile_path(tfile), NULL);
close_tempfile_gently(tfile);
child.no_stdout = 1;
child.no_stderr = 1;
if (start_command(&child))
die(_("failed to start schtasks"));
result = finish_command(&child);
delete_tempfile(&tfile);
free(name);
return result;
}
static int schtasks_schedule_tasks(const char *cmd)
{
const char *exec_path = git_exec_path();
return schtasks_schedule_task(exec_path, SCHEDULE_HOURLY, cmd) ||
schtasks_schedule_task(exec_path, SCHEDULE_DAILY, cmd) ||
schtasks_schedule_task(exec_path, SCHEDULE_WEEKLY, cmd);
}
static int schtasks_update_schedule(int run_maintenance, int fd, const char *cmd)
{
if (run_maintenance)
return schtasks_schedule_tasks(cmd);
else
return schtasks_remove_tasks(cmd);
}
#define BEGIN_LINE "# BEGIN GIT MAINTENANCE SCHEDULE"
#define END_LINE "# END GIT MAINTENANCE SCHEDULE"
static int update_background_schedule(int run_maintenance)
static int crontab_update_schedule(int run_maintenance, int fd, const char *cmd)
{
int result = 0;
int in_old_region = 0;
struct child_process crontab_list = CHILD_PROCESS_INIT;
struct child_process crontab_edit = CHILD_PROCESS_INIT;
FILE *cron_list, *cron_in;
const char *crontab_name;
struct strbuf line = STRBUF_INIT;
struct lock_file lk;
char *lock_path = xstrfmt("%s/schedule", the_repository->objects->odb->path);
if (hold_lock_file_for_update(&lk, lock_path, LOCK_NO_DEREF) < 0)
return error(_("another process is scheduling background maintenance"));
crontab_name = getenv("GIT_TEST_CRONTAB");
if (!crontab_name)
crontab_name = "crontab";
strvec_split(&crontab_list.args, crontab_name);
strvec_split(&crontab_list.args, cmd);
strvec_push(&crontab_list.args, "-l");
crontab_list.in = -1;
crontab_list.out = dup(lk.tempfile->fd);
crontab_list.out = dup(fd);
crontab_list.git_cmd = 0;
if (start_command(&crontab_list)) {
result = error(_("failed to run 'crontab -l'; your system might not support 'cron'"));
goto cleanup;
}
if (start_command(&crontab_list))
return error(_("failed to run 'crontab -l'; your system might not support 'cron'"));
/* Ignore exit code, as an empty crontab will return error. */
finish_command(&crontab_list);
@ -1533,17 +1863,15 @@ static int update_background_schedule(int run_maintenance)
* Read from the .lock file, filtering out the old
* schedule while appending the new schedule.
*/
cron_list = fdopen(lk.tempfile->fd, "r");
cron_list = fdopen(fd, "r");
rewind(cron_list);
strvec_split(&crontab_edit.args, crontab_name);
strvec_split(&crontab_edit.args, cmd);
crontab_edit.in = -1;
crontab_edit.git_cmd = 0;
if (start_command(&crontab_edit)) {
result = error(_("failed to run 'crontab'; your system might not support 'cron'"));
goto cleanup;
}
if (start_command(&crontab_edit))
return error(_("failed to run 'crontab'; your system might not support 'cron'"));
cron_in = fdopen(crontab_edit.in, "w");
if (!cron_in) {
@ -1587,14 +1915,54 @@ static int update_background_schedule(int run_maintenance)
close(crontab_edit.in);
done_editing:
if (finish_command(&crontab_edit)) {
if (finish_command(&crontab_edit))
result = error(_("'crontab' died"));
goto cleanup;
}
fclose(cron_list);
else
fclose(cron_list);
return result;
}
#if defined(__APPLE__)
static const char platform_scheduler[] = "launchctl";
#elif defined(GIT_WINDOWS_NATIVE)
static const char platform_scheduler[] = "schtasks";
#else
static const char platform_scheduler[] = "crontab";
#endif
static int update_background_schedule(int enable)
{
int result;
const char *scheduler = platform_scheduler;
const char *cmd = scheduler;
char *testing;
struct lock_file lk;
char *lock_path = xstrfmt("%s/schedule", the_repository->objects->odb->path);
testing = xstrdup_or_null(getenv("GIT_TEST_MAINT_SCHEDULER"));
if (testing) {
char *sep = strchr(testing, ':');
if (!sep)
die("GIT_TEST_MAINT_SCHEDULER unparseable: %s", testing);
*sep = '\0';
scheduler = testing;
cmd = sep + 1;
}
if (hold_lock_file_for_update(&lk, lock_path, LOCK_NO_DEREF) < 0)
return error(_("another process is scheduling background maintenance"));
if (!strcmp(scheduler, "launchctl"))
result = launchctl_update_schedule(enable, lk.tempfile->fd, cmd);
else if (!strcmp(scheduler, "schtasks"))
result = schtasks_update_schedule(enable, lk.tempfile->fd, cmd);
else if (!strcmp(scheduler, "crontab"))
result = crontab_update_schedule(enable, lk.tempfile->fd, cmd);
else
die("unknown background scheduler: %s", scheduler);
cleanup:
rollback_lock_file(&lk);
free(testing);
return result;
}

View File

@ -7,6 +7,19 @@ test_description='git maintenance builtin'
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 "$@"
else
true
fi
}
test_expect_success 'help text' '
test_expect_code 129 git maintenance -h 2>err &&
test_i18ngrep "usage: git maintenance <subcommand>" err &&
@ -419,7 +432,7 @@ test_expect_success !MINGW 'register and unregister with regex metacharacters' '
'
test_expect_success 'start from empty cron table' '
GIT_TEST_CRONTAB="test-tool crontab cron.txt" git maintenance start &&
GIT_TEST_MAINT_SCHEDULER="crontab:test-tool crontab cron.txt" git maintenance start &&
# start registers the repo
git config --get --global --fixed-value maintenance.repo "$(pwd)" &&
@ -430,19 +443,19 @@ test_expect_success 'start from empty cron table' '
'
test_expect_success 'stop from existing schedule' '
GIT_TEST_CRONTAB="test-tool crontab cron.txt" git maintenance stop &&
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_CRONTAB="test-tool crontab cron.txt" git maintenance stop &&
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_CRONTAB="test-tool crontab cron.txt" git maintenance start &&
GIT_TEST_MAINT_SCHEDULER="crontab:test-tool crontab cron.txt" git maintenance start &&
grep "Important information!" cron.txt
'
@ -457,11 +470,94 @@ test_expect_success 'magic markers are correct' '
test_expect_success 'stop preserves surrounding schedule' '
echo "Crucial information!" >>cron.txt &&
GIT_TEST_CRONTAB="test-tool crontab cron.txt" git maintenance stop &&
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 $* | sed "s:gui/[0-9][0-9]*:gui/[UID]:" >>args
EOF
rm -f args &&
GIT_TEST_MAINT_SCHEDULER=launchctl:./print-args git maintenance start &&
# start registers the repo
git config --get --global --fixed-value maintenance.repo "$(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 '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 &&
# 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 'register preserves existing strategy' '
git config maintenance.strategy none &&
git maintenance register &&

View File

@ -1713,7 +1713,8 @@ test_lazy_prereq REBASE_P '
'
# Ensure that no test accidentally triggers a Git command
# that runs 'crontab', affecting a user's cron schedule.
# Tests that verify the cron integration must set this locally
# that runs the actual maintenance scheduler, affecting a user's
# system permanently.
# Tests that verify the scheduler integration must set this locally
# to avoid errors.
GIT_TEST_CRONTAB="exit 1"
GIT_TEST_MAINT_SCHEDULER="none:exit 1"