Implement auto restart when the app is updated

diff --git a/lib/Gitalist.pm b/lib/Gitalist.pm
index 8b0cee5..0def39d 100644 (file)
--- a/lib/Gitalist.pm
+++ b/lib/Gitalist.pm
@@ -20,8 +20,34 @@ __PACKAGE__->config(
     name => 'Gitalist',
     default_view => 'Default',
     default_model => 'Git', # Yes, we are going to be changing this.
+    # Set to 1 to make your fcgi die the request after you push :)
+    exit_at_end_of_request_if_updated => 0,
 );
 
+{
+    my $version;
+    my $get_version = sub {
+        my $gitdir = shift->path_to('.git');
+        my $version = qx{cat "$gitdir/`cut -d' ' -f2 .git/HEAD`"};
+        chomp $version;
+        return $version;
+    };
+
+    after setup_finalize => sub {
+        my $c = shift;
+        $version = $c->$get_version
+            if $c->config->{exit_at_end_of_request_if_updated};
+    };
+    after handle_request => sub {
+        my $c = shift;
+        if ($version) {
+            my $new = $c->$get_version;
+            exit 0 unless $new eq $version;
+        }
+    };
+}
+
+
 # Start the application
 __PACKAGE__->setup();