git-instaweb: Move all actions at the end of script

As a nice side-effect now the order of parameters does not matter:

  $ git instaweb --httpd=apache2 --start

is now (after this patch) the same as

  $ git instaweb --start --httpd=apache2

Before this commit --start, --stop, --restart (and their subcommand
versions start, stop, restart) exited immediately.

This is preparatory work for making start/restart check that correct
configuration is set up; this change was required to have access in
start_httpd to requested web browser etc.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Acked-by: Eric Wong <normalperson@yhbt.net>

git-instaweb.sh

@@ -27,6 +27,7 @@ httpd="$(git config --get instaweb.httpd)"
 root="$(git config --get instaweb.gitwebdir)"
 port=$(git config --get instaweb.port)
 module_path="$(git config --get instaweb.modulepath)"
+action="browse"
 
 conf="$GIT_DIR/gitweb/httpd.conf"
 
@@ -148,17 +149,13 @@ while test $# != 0
 do
 	case "$1" in
 	--stop|stop)
-		stop_httpd
-		exit 0
+		action="stop"
 		;;
 	--start|start)
-		start_httpd
-		exit 0
+		action="start"
 		;;
 	--restart|restart)
-		stop_httpd
-		start_httpd
-		exit 0
+		action="restart"
 		;;
 	-l|--local)
 		local=true
@@ -611,6 +608,22 @@ configure_httpd() {
 	esac
 }
 
+case "$action" in
+stop)
+	stop_httpd
+	exit 0
+	;;
+start)
+	start_httpd
+	exit 0
+	;;
+restart)
+	stop_httpd
+	start_httpd
+	exit 0
+	;;
+esac
+
 gitweb_conf
 
 resolve_full_httpd