Accept nested lists as bld(source=...)

build_system_kit/noscript/dbdlib.py

@@ -35,9 +35,8 @@ def build(bld):
 	elif tp == 'objects':
 		features = 'c'
 
-	source = Options.options.source
 	app = Options.options.app
-	bld(features=features, source=source, target=app)
+	bld(features=features, source=Options.options.source, target=app)
 
 def recurse_rep(x, y):
 	f = getattr(Context.g_module, x.cmd or x.fun, Utils.nada)

demos/python/wscript

@@ -36,7 +36,7 @@ def build(bld):
 	# example for generated python files
 	target = bld.path.find_or_declare('abc.py')
 	bld(rule='touch ${TGT}', source='wscript', target=target)
-	bld(features='py', source=target, install_from=target.parent)
+	bld(features='py', source=[target], install_from=target.parent)
 
 	# then a c extension module
 	bld(

docs/slides/presentation/gfx/wscript

@@ -14,14 +14,14 @@ def build(bld):
 	for x in bld.path.ant_glob('*.svg'):
 		bld(
 		 rule='${CONVERT} -density 600 ${SRC} ${TGT}',
-		 source=x,
+		 source=[x],
 		 target=x.change_ext('.png'),
 		)
 	
 	for x in bld.path.ant_glob('*.dia'):
 		bld(
 		 rule='${DIA} -t png ${SRC} -e ${TGT}',
-		 source=x,
+		 source=[x],
 		 target=x.change_ext('.png'),
 		)
 

playground/compress/wscript

@@ -138,7 +138,7 @@ def build(bld):
 			bld(rule=try_compress, target=ini, always=True, kind=kind, frompath=node, files=rels)
 
 		# for the same reason, count_result will be executed each time
-		bld(rule=count_result, target=dist, source=ini, always=True)
+		bld(rule=count_result, target=dist, source=[ini], always=True)
 		bld(rule=write_template, target=plot, triplet=[png, kind, dist], always=True)
 		bld(rule='${GNUPLOT} < ${SRC[1].abspath()}', target=png, source=[dist, plot])
 

playground/dynamic_build/wscript

@@ -47,26 +47,13 @@ def build(bld):
 	import random
 	rnd = random.randint(0, 25)
 	bld(
-		rule           = "sleep 2 && (echo 'int num%d = %d;' > ${TGT})" % (rnd, rnd),
-		target         = 'foo_%d.c' % rnd,
-       )
+		rule    = "sleep 2 && (echo 'int num%d = %d;' > ${TGT})" % (rnd, rnd),
+		target  = 'foo_%d.c' % rnd,
+	)
 
 	bld.add_group()
 
-	bld.program(source='main.c', target='app', dynamic_source='*.c')
-
-# support for the "dynamic_source" attribute follows:
-
-from waflib import Build, Utils, TaskGen
-@TaskGen.feature('c')
-@TaskGen.before('process_source', 'process_rule')
-def dynamic_post(self):
-	"""
-	bld(dynamic_source='*.c', ..) will search for source files to add to the attribute 'source'
-	we could also call "eval" or whatever expression
-	"""
-	if not getattr(self, 'dynamic_source', None):
-		return
-	self.source = Utils.to_list(self.source)
-	self.source.extend(self.path.get_bld().ant_glob(self.dynamic_source, remove=False))
+	it = bld.path.get_bld().ant_glob('*.c', remove=False, quiet=True, generator=True)
+	src = ['main.c', it]
+	bld(features='c cprogram', source=src, target='app')
 

playground/folder_hashing/wscript

@@ -8,5 +8,5 @@ def build(bld):
 	node = bld.path.get_bld().make_node('test/bar/stuff')
 
 	bld(features='mkdir', target=node)
-	bld(rule='du ${SRC}', source=node)
+	bld(rule='du ${SRC}', source=[node])
 

waflib/TaskGen.py

@@ -48,7 +48,7 @@ class task_gen(object):
 
 		The extra key/value elements passed in ``kw`` are set as attributes
 		"""
-		self.source = ''
+		self.source = []
 		self.target = ''
 
 		self.meths = []
@@ -490,7 +490,8 @@ def extension(*k):
 @taskgen_method
 def to_nodes(self, lst, path=None):
 	"""
-	Converts the input list into a list of nodes.
+	Flatten the input list of string/nodes/lists into a list of nodes.
+
 	It is used by :py:func:`waflib.TaskGen.process_source` and :py:func:`waflib.TaskGen.process_rule`.
 	It is designed for source files, for folders, see :py:func:`waflib.Tools.ccroot.to_incnodes`:
 
@@ -507,14 +508,16 @@ def to_nodes(self, lst, path=None):
 	if isinstance(lst, Node.Node):
 		lst = [lst]
 
-	# either a list or a string, convert to a list of nodes
 	for x in Utils.to_list(lst):
 		if isinstance(x, str):
 			node = find(x)
-		else:
+		elif hasattr(x, 'name'):
 			node = x
+		else:
+			tmp.extend(self.to_nodes(x))
+			continue
 		if not node:
-			raise Errors.WafError("source not found: %r in %r" % (x, self))
+			raise Errors.WafError('source not found: %r in %r' % (x, self))
 		tmp.append(node)
 	return tmp