English version

To speed up GWT compiler, the main idea is to reduce GWT permutations.

To manage the permutations, I build my own version of GWT 1.5 named GWT 1.5 r2030-olivier.

I am using 1.5 M1:

• svn co http://google-web-toolkit.googlecode.com/svn/trunk -r2030
• Edit I18N.gwt.xml to remove default locale and force "fr_FR" as "default" locale

Index: trunk/user/src/com/google/gwt/i18n/I18N.gwt.xml
===================================================================
--- trunk/user/src/com/google/gwt/i18n/I18N.gwt.xml     (revision 2030)
+++ trunk/user/src/com/google/gwt/i18n/I18N.gwt.xml     (working copy)
@@ -18,7 +18,7 @@

        
        
-       
+       

                

Edit UserAgent.gwt.xml and, in my case, remove unused some browsers : safari, opera, gecko (old firefox/mozilla)

Index: trunk/user/src/com/google/gwt/user/UserAgent.gwt.xml
===================================================================
--- trunk/user/src/com/google/gwt/user/UserAgent.gwt.xml        (revision 2030)
+++ trunk/user/src/com/google/gwt/user/UserAgent.gwt.xml        (working copy)
@@ -19,7 +19,7 @@
 

   
-  
+  
= 6000) {
@@ -44,7 +40,6 @@
           if (makeVersion(result) >= 1008)
             return "gecko1_8";
           }
-        return "gecko";
       }
       return "unknown";
   ]]>

With my own build, GWT compiler speeds up my project compilation :

12mn with GWT 1.5 r2030
4mn with GWT 1.5 r2030-olivier
1m15s with GWT 1.5 r2030-olivier + no additional locale
1mn with GWT 1.5 r2030-olivier + no locale + gecko1_8

This is an amazing gain : 12mn to 1mn
French version
Coming soon.