[vala] gtkmodule: Respect "alias" attribute in gresource

[Daiki Ueno <dueno src gnome org>]

commit 6c268a67864fe594371925549b6fc94cfb25314f
Author: Daiki Ueno <dueno src gnome org>
Date:   Fri Dec 19 15:49:53 2014 +0900

    gtkmodule: Respect "alias" attribute in gresource
    
    Though undocumented, glib-compile-resources looks at "alias" attribute
    of "file" element and maps the physical file name to a logical path
    name.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=741743

 codegen/valagtkmodule.vala |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/codegen/valagtkmodule.vala b/codegen/valagtkmodule.vala
index deb0704..ecc709f 100644
--- a/codegen/valagtkmodule.vala
+++ b/codegen/valagtkmodule.vala
@@ -70,16 +70,22 @@ public class Vala.GtkModule : GSignalModule {
 
                        int state = 0;
                        string prefix = null;
+                       string alias = null;
 
                        MarkupTokenType current_token = reader.read_token (null, null);
                        while (current_token != MarkupTokenType.EOF) {
                                if (current_token == MarkupTokenType.START_ELEMENT && reader.name == 
"gresource") {
                                        prefix = reader.get_attribute ("prefix");
                                } else if (current_token == MarkupTokenType.START_ELEMENT && reader.name == 
"file") {
+                                       alias = reader.get_attribute ("alias");
                                        state = 1;
                                } else if (state == 1 && current_token == MarkupTokenType.TEXT) {
                                        var name = reader.content;
-                                       gresource_to_file_map.set (Path.build_filename (prefix, name), 
Path.build_filename (gresource_dir, name));
+                                       var filename = Path.build_filename (gresource_dir, name);
+                                       if (alias != null) {
+                                               gresource_to_file_map.set (Path.build_filename (prefix, 
alias), filename);
+                                       }
+                                       gresource_to_file_map.set (Path.build_filename (prefix, name), 
filename);
                                        state = 0;
                                }
                                current_token = reader.read_token (null, null);