refactor: update debian script. (go-gitea#965)

scripts/init/debian/gitea

@@ -1,4 +1,4 @@
-#! /bin/sh
+#!/bin/sh
 ### BEGIN INIT INFO
 # Provides:          gitea
 # Required-Start:    $syslog $network
@@ -24,103 +24,63 @@ WORKINGDIR=/home/git/gitea
 DAEMON=$WORKINGDIR/$NAME
 DAEMON_ARGS="web"
 USER=git
+USERBIND="setcap cap_net_bind_service=+ep"
+STOP_SCHEDULE="${STOP_SCHEDULE:-QUIT/5/TERM/1/KILL/5}"
 
 # Read configuration variable file if it is present
 [ -r /etc/default/$NAME ] && . /etc/default/$NAME
 
 # Exit if the package is not installed
 [ -x "$DAEMON" ] || exit 0
 
-# Load the VERBOSE setting and other rcS variables
-. /lib/init/vars.sh
-
-# Define LSB log_* functions.
-# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
-# and status_of_proc is working.
-. /lib/lsb/init-functions
-
-#
-# Function that starts the daemon/service
-#
 do_start()
 {
-	# Return
-	#   0 if daemon has been started
-	#   1 if daemon was already running
-	#   2 if daemon could not be started
-	sh -c "USER=$USER start-stop-daemon --start --quiet --pidfile $PIDFILE --make-pidfile \\
-			--test --chdir $WORKINGDIR --chuid $USER \\
-			--exec $DAEMON -- $DAEMON_ARGS > /dev/null \\
-			|| return 1"
-	sh -c "USER=$USER start-stop-daemon --start --quiet --pidfile $PIDFILE --make-pidfile \\
-			--background --chdir $WORKINGDIR --chuid $USER \\
-			--exec $DAEMON -- $DAEMON_ARGS \\
-			|| return 2"
+    $USERBIND $DAEMON
+    sh -c "USER=$USER start-stop-daemon --start --quiet --pidfile $PIDFILE --make-pidfile \\
+        --background --chdir $WORKINGDIR --chuid $USER \\
+        --exec $DAEMON -- $DAEMON_ARGS"
 }
 
-#
-# Function that stops the daemon/service
-#
 do_stop()
 {
-	# Return
-	#   0 if daemon has been stopped
-	#   1 if daemon was already stopped
-	#   2 if daemon could not be stopped
-	#   other if a failure occurred
-	start-stop-daemon --stop --quiet --retry=TERM/1/KILL/5 --pidfile $PIDFILE --name $NAME
-	RETVAL="$?"
-	[ "$RETVAL" = 2 ] && return 2
-	start-stop-daemon --stop --quiet --oknodo --retry=0/1/KILL/5 --exec $DAEMON
-	[ "$?" = 2 ] && return 2
-	# Many daemons don't delete their pidfiles when they exit.
-	rm -f $PIDFILE
-	return "$RETVAL"
+    start-stop-daemon --stop --quiet --retry=$STOP_SCHEDULE --pidfile $PIDFILE --name $NAME --oknodo
+    rm -f $PIDFILE
 }
 
+do_status()
+{
+    if [ -f $PIDFILE ]; then
+        if kill -0 $(cat "$PIDFILE"); then
+            echo "$NAME is running, PID is $(cat $PIDFILE)"
+        else
+            echo "$NAME process is dead, but pidfile exists"
+        fi
+    else
+        echo "$NAME is not running"
+    fi
+}
 
 case "$1" in
-  start)
-	[ "$SERVICEVERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
-	do_start
-	case "$?" in
-		0|1) [ "$SERVICEVERBOSE" != no ] && log_end_msg 0 ;;
-		2) [ "$SERVICEVERBOSE" != no ] && log_end_msg 1 ;;
-	esac
-	;;
-  stop)
-	[ "$SERVICEVERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
-	do_stop
-	case "$?" in
-		0|1) [ "$SERVICEVERBOSE" != no ] && log_end_msg 0 ;;
-		2) [ "$SERVICEVERBOSE" != no ] && log_end_msg 1 ;;
-	esac
-	;;
-  status)
-	status_of_proc "$DAEMON" "$NAME" && exit 0 || exit $?
-	;;
-  restart|force-reload)
-	log_daemon_msg "Restarting $DESC" "$NAME"
-	do_stop
-	case "$?" in
-	  0|1)
-		do_start
-		case "$?" in
-			0) log_end_msg 0 ;;
-			1) log_end_msg 1 ;; # Old process is still running
-			*) log_end_msg 1 ;; # Failed to start
-		esac
-		;;
-	  *)
-		# Failed to stop
-		log_end_msg 1
-		;;
-		esac
-	;;
-  *)
-		echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
-		exit 3
-		;;
+    start)
+        echo "Starting $DESC" "$NAME"
+        do_start
+        ;;
+    stop)
+        echo "Stopping $DESC" "$NAME"
+        do_stop
+        ;;
+    status)
+        do_status
+        ;;
+    restart)
+        echo "Restarting $DESC" "$NAME"
+        do_stop
+        do_start
+        ;;
+    *)
+        echo "Usage: $SCRIPTNAME {start|stop|status|restart}" >&2
+        exit 2
+        ;;
 esac
 
-:
+exit 0