From a47c35f84688ea90f8ee50bc8f40b811c6b887c2 Mon Sep 17 00:00:00 2001
From: Daniel Narvaez <dwnarvaez@gmail.com>
Date: Tue, 27 Nov 2012 14:18:00 +0000
Subject: Fix and simplify skipping modules

---
(limited to 'devbot/build.py')

diff --git a/devbot/build.py b/devbot/build.py
index 09580a2..d80ae14 100644
--- a/devbot/build.py
+++ b/devbot/build.py
@@ -96,12 +96,6 @@ def build_module(module):
 
     state.touch_built_commit_id(module)
 
-def clear_built_modules(modules, index):
-    if index < len(modules) - 1:
-        for module in modules[index + 1:]:
-            if state.get_built_commit_id(module) is not None:
-                state.remove_built_commit_id(module)
-
 def rmtree(dir):
     print "Deleting %s" % dir
     shutil.rmtree(dir, ignore_errors=True)
@@ -130,16 +124,27 @@ def build():
     environ.setup()
 
     modules = config.load_modules()
+    skipped = []
 
-    for i, module in enumerate(modules):
+    for module in modules[:]:
         old_commit_id = state.get_built_commit_id(module)
         new_commit_id = module.get_commit_id()
 
-        if old_commit_id is None or old_commit_id != new_commit_id:
-            clear_built_modules(modules, i)
-            build_module(module)
+        if old_commit_id == new_commit_id:
+            modules.pop(0)
+            skipped.append(module.name)
         else:
-            print "\n* Already built, skipping *"
+            break
+
+    if skipped:
+        print "\n* Skipping unchanged modules *\n"
+        print "\n".join(skipped)
+
+    for module in modules:
+        state.remove_built_commit_id(module)
+
+    for module in modules:
+        build_module(module)
 
 def clean():
     rmtree(config.install_dir)
--
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