Moved the stale files example to a single module

playground/stale_files/wscript

@@ -1,18 +1,10 @@
 #! /usr/bin/env python
 # encoding: utf-8
-# Thomas Nagy, 2006-2010 (ita)
+# Thomas Nagy, 2006-2014 (ita)
 
 """
-Add a pre-build hook to remove all build files
-which do not have a corresponding target
-
-This can be used for example to remove the targets
-that have changed name without performing
-a full 'waf clean'
-
-Of course, it will only work if there are no dynamically generated
-nodes/tasks, in which case the method will have to be modified
-to exclude some folders for example.
+See waflib/extras/stale.py for more information.
+Do not forget to reconfigure the proect after changing "configure" below
 """
 
 VERSION='0.0.1'
@@ -22,10 +14,9 @@ top = '.'
 
 def options(opt):
 	opt.load('compiler_c')
-	opt.load('gnu_dirs')
 
 def configure(conf):
-	conf.load('compiler_c')
+	conf.load('compiler_c stale')
 
 def build(bld):
 	import random
@@ -34,41 +25,3 @@ def build(bld):
 	else:
 		bld(rule='touch ${TGT}', target='bar.h')
 
-from waflib import Logs
-from waflib.Runner import Parallel
-old = Parallel.refill_task_list
-def refill_task_list(self):
-	iit = old(self)
-	bld = self.bld
-	if bld.options.targets and bld.options.targets != '*':
-		return iit
-
-	# execute only once
-	if getattr(self, 'clean', False):
-		return iit
-	self.clean = True
-
-	# obtain the nodes to use during the build
-	nodes = []
-	for i in range(len(bld.groups)):
-		tasks = bld.get_tasks_group(i)
-		for x in tasks:
-			try:
-				nodes.extend(x.outputs)
-			except:
-				pass
-
-	# recursion over the nodes to find the stale files
-	def iter(node):
-		if getattr(node, 'children', []):
-			for x in node.children.values():
-				iter(x)
-		else:
-			if not node in nodes:
-				Logs.warn("stale file found -> %s" % node.abspath())
-				node.delete()
-	iter(bld.bldnode)
-	return iit
-
-Parallel.refill_task_list = refill_task_list
-

waflib/extras/stale.py

@@ -0,0 +1,57 @@
+#! /usr/bin/env python
+# encoding: UTF-8
+# Thomas Nagy, 2006-2014 (ita)
+
+"""
+Add a pre-build hook to remove all build files
+which do not have a corresponding target
+
+This can be used for example to remove the targets
+that have changed name without performing
+a full 'waf clean'
+
+Of course, it will only work if there are no dynamically generated
+nodes/tasks, in which case the method will have to be modified
+to exclude some folders for example.
+"""
+
+from waflib import Logs
+from waflib.Runner import Parallel
+old = Parallel.refill_task_list
+def refill_task_list(self):
+	iit = old(self)
+	bld = self.bld
+
+	if bld.options.targets and bld.options.targets != '*':
+		return iit
+
+	# execute only once
+	if getattr(self, 'clean', False):
+		return iit
+	self.clean = True
+
+	# obtain the nodes to use during the build
+	nodes = []
+	for i in range(len(bld.groups)):
+		tasks = bld.get_tasks_group(i)
+		for x in tasks:
+			try:
+				nodes.extend(x.outputs)
+			except:
+				pass
+
+	# recursion over the nodes to find the stale files
+	def iter(node):
+		if getattr(node, 'children', []):
+			for x in node.children.values():
+				if x.name != "c4che":
+					iter(x)
+		else:
+			if not node in nodes:
+				Logs.warn("stale file found -> %s" % node.abspath())
+				node.delete()
+	iter(bld.bldnode)
+	return iit
+
+Parallel.refill_task_list = refill_task_list
+