git-instaweb: Extract configuring web server into configure_httpd

This is preparatory work for making start/restart check that
git-instaweb set up correct configuration, and generate it if it is
missing.

Pure refactoring, no functional changes.

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

git-instaweb.sh

@@ -587,11 +587,7 @@ our \$projects_list = \$projectroot;
 EOF
 }
 
-gitweb_conf
+configure_httpd() {
-
-resolve_full_httpd
-mkdir -p "$fqgitdir/gitweb/$httpd_only"
-
 	case "$httpd" in
 	*lighttpd*)
 		lighttpd_conf
@@ -613,6 +609,14 @@ webrick)
 		exit 1
 		;;
 	esac
+}
+
+gitweb_conf
+
+resolve_full_httpd
+mkdir -p "$fqgitdir/gitweb/$httpd_only"
+
+configure_httpd
 
 start_httpd
 url=http://127.0.0.1:$port