[PATCH v3 2/4] maintenance: introduce ENABLE/DISABLE for code clarity

["Lénaïc Huard" <lenaic@lhuard.fr>]

The first parameter of `XXX_update_schedule` and alike functions is a
boolean specifying if the tasks should be scheduled or unscheduled.

Using an `enum` with `ENABLE` and `DISABLE` values can make the code
clearer.

Signed-off-by: Lénaïc Huard <lenaic@lhuard.fr>
---
 builtin/gc.c | 49 +++++++++++++++++++++++++++++++------------------
 1 file changed, 31 insertions(+), 18 deletions(-)

diff --git a/builtin/gc.c b/builtin/gc.c
index ef7226d7bc..0caf8d45c4 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -1570,19 +1570,21 @@ static char *launchctl_get_uid(void)
 	return xstrfmt("gui/%d", getuid());
 }
 
-static int launchctl_boot_plist(int enable, const char *filename, const char *cmd)
+enum enable_or_disable {
+	DISABLE,
+	ENABLE
+};
+
+static int launchctl_boot_plist(enum enable_or_disable 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);
+	strvec_pushl(&child.args, enable == ENABLE ? "bootstrap" : "bootout",
+		     uid, filename, NULL);
 
 	child.no_stderr = 1;
 	child.no_stdout = 1;
@@ -1601,7 +1603,7 @@ static int launchctl_remove_plist(enum schedule_priority schedule, const char *c
 	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);
+	int result = launchctl_boot_plist(DISABLE, filename, cmd);
 	unlink(filename);
 	free(filename);
 	free(name);
@@ -1684,8 +1686,8 @@ static int launchctl_schedule_plist(const char *exec_path, enum schedule_priorit
 	fclose(plist);
 
 	/* bootout might fail if not already running, so ignore */
-	launchctl_boot_plist(0, filename, cmd);
-	if (launchctl_boot_plist(1, filename, cmd))
+	launchctl_boot_plist(DISABLE, filename, cmd);
+	if (launchctl_boot_plist(ENABLE, filename, cmd))
 		die(_("failed to bootstrap service %s"), filename);
 
 	free(filename);
@@ -1702,12 +1704,17 @@ static int launchctl_add_plists(const char *cmd)
 		launchctl_schedule_plist(exec_path, SCHEDULE_WEEKLY, cmd);
 }
 
-static int launchctl_update_schedule(int run_maintenance, int fd, const char *cmd)
+static int launchctl_update_schedule(enum enable_or_disable run_maintenance,
+				     int fd, const char *cmd)
 {
-	if (run_maintenance)
+	switch (run_maintenance) {
+	case ENABLE:
 		return launchctl_add_plists(cmd);
-	else
+	case DISABLE:
 		return launchctl_remove_plists(cmd);
+	default:
+		BUG("invalid enable_or_disable value");
+	}
 }
 
 static char *schtasks_task_name(const char *frequency)
@@ -1864,18 +1871,24 @@ static int schtasks_schedule_tasks(const char *cmd)
 		schtasks_schedule_task(exec_path, SCHEDULE_WEEKLY, cmd);
 }
 
-static int schtasks_update_schedule(int run_maintenance, int fd, const char *cmd)
+static int schtasks_update_schedule(enum enable_or_disable run_maintenance,
+				    int fd, const char *cmd)
 {
-	if (run_maintenance)
+	switch (run_maintenance) {
+	case ENABLE:
 		return schtasks_schedule_tasks(cmd);
-	else
+	case DISABLE:
 		return schtasks_remove_tasks(cmd);
+	default:
+		BUG("invalid enable_or_disable value");
+	}
 }
 
 #define BEGIN_LINE "# BEGIN GIT MAINTENANCE SCHEDULE"
 #define END_LINE "# END GIT MAINTENANCE SCHEDULE"
 
-static int crontab_update_schedule(int run_maintenance, int fd, const char *cmd)
+static int crontab_update_schedule(enum enable_or_disable run_maintenance,
+				   int fd, const char *cmd)
 {
 	int result = 0;
 	int in_old_region = 0;
@@ -1925,7 +1938,7 @@ static int crontab_update_schedule(int run_maintenance, int fd, const char *cmd)
 			fprintf(cron_in, "%s\n", line.buf);
 	}
 
-	if (run_maintenance) {
+	if (run_maintenance == ENABLE) {
 		struct strbuf line_format = STRBUF_INIT;
 		const char *exec_path = git_exec_path();
 
-- 
2.31.1