1 files changed, 58 insertions, 0 deletions
diff --git a/src/scons/Builder.py b/src/scons/Builder.py
new file mode 100644
index 0000000..76c5512
--- /dev/null
+++ b/src/scons/Builder.py
@@ -0,0 +1,58 @@
+"""scons.Builder
+
+XXX
+
+"""
+
+__revision__ = "Builder.py __REVISION__ __DATE__ __DEVELOPER__"
+
+
+
+import os
+from types import *
+from scons.Node.FS import Dir, File, lookup
+
+
+
+class Builder:
+    """Base class for Builders, objects that create output
+    nodes (files) from input nodes (files).
+    """
+
+    def __init__(self,	name = None,
+			action = None,
+			input_suffix = None,
+			output_suffix = None,
+			node_class = File):
+	self.name = name
+	self.action = action
+	self.insuffix = input_suffix
+	self.outsuffix = output_suffix
+	self.node_class = node_class
+	if not self.insuffix is None and self.insuffix[0] != '.':
+	    self.insuffix = '.' + self.insuffix
+	if not self.outsuffix is None and self.outsuffix[0] != '.':
+	    self.outsuffix = '.' + self.outsuffix
+
+    def __cmp__(self, other):
+	return cmp(self.__dict__, other.__dict__)
+
+    def __call__(self, target = None, source = None):
+	node = lookup(self.node_class, target)
+	node.builder_set(self)
+	node.sources = source	# XXX REACHING INTO ANOTHER OBJECT
+	return node
+
+    def execute(self, **kw):
+	"""Execute a builder's action to create an output object.
+	"""
+	# XXX THIS SHOULD BE DONE BY TURNING Builder INTO A FACTORY
+	# FOR SUBCLASSES FOR StringType AND FunctionType
+	t = type(self.action)
+	if t == StringType:
+	    cmd = self.action % kw
+	    print cmd
+	    os.system(cmd)
+	elif t == FunctionType:
+	    # XXX WHAT SHOULD WE PRINT HERE
+	    self.action(kw)