Issue 1086: add support for generic batch build actions, and

specific support for batched compilation for Microsoft Visual C/C++.

Merged revisions 3819-3851,3854-3869,3871-3877,3880 via svnmerge from
http://scons.tigris.org/svn/scons/branches/sgk_batch

........
  r3820 | stevenknight | 2008-12-09 23:59:14 -0800 (Tue, 09 Dec 2008) | 6 lines

  Issue 1086:  Batch compilation support:
  * $MSVC_BATCH to control Visual C/C++ batch compilation.
  * New $CHANGED_SOURCES, $CHANGED_TARGETS, $UNCHANGED_SOURCES and
    $UNCHANGED_TARGETS construction variables.
  * New Action(batch_key=, targets=) keyword arguments.
........
  r3880 | stevenknight | 2009-01-07 20:50:41 -0800 (Wed, 07 Jan 2009) | 3 lines

  Use UniqueList objects to collect the all_children(), all_prerequisites()
  and all_sources() lists instead of calling uniquer_hashables() by hand.
........

1 files changed, 76 insertions, 0 deletions

diff --git a/test/Batch/generated.py b/test/Batch/generated.py
new file mode 100644
index 0000000..4f31a7e
--- /dev/null
+++ b/test/Batch/generated.py
@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+#
+# __COPYRIGHT__
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
+
+"""
+Verify use of a batch builder when one of the later targets in the
+list the list depends on a generated file.
+"""
+
+import TestSCons
+
+test = TestSCons.TestSCons()
+
+test.write('SConstruct', """
+def batch_build(target, source, env):
+    for t, s in zip(target, source):
+        fp = open(str(t), 'wb')
+        if str(t) == 'f3.out':
+            fp.write(open('f3.include', 'rb').read())
+        fp.write(open(str(s), 'rb').read())
+env = Environment()
+bb = Action(batch_build, batch_key=True)
+env['BUILDERS']['Batch'] = Builder(action=bb)
+env1 = env.Clone()
+env1.Batch('f1.out', 'f1.in')
+env1.Batch('f2.out', 'f2.mid')
+f3_out = env1.Batch('f3.out', 'f3.in')
+
+env2 = env.Clone()
+env2.Batch('f2.mid', 'f2.in')
+
+f3_include = env.Batch('f3.include', 'f3.include.in')
+env.Depends(f3_out, f3_include)
+""")
+
+test.write('f1.in', "f1.in\n")
+test.write('f2.in', "f2.in\n")
+test.write('f3.in', "f3.in\n")
+test.write('f3.include.in', "f3.include.in\n")
+
+expect = test.wrap_stdout("""\
+batch_build(["f2.mid"], ["f2.in"])
+batch_build(["f3.include"], ["f3.include.in"])
+batch_build(["f1.out", "f2.out", "f3.out"], ["f1.in", "f2.mid", "f3.in"])
+""")
+
+test.run(stdout = expect)
+
+test.must_match('f1.out', "f1.in\n")
+test.must_match('f2.out', "f2.in\n")
+
+test.up_to_date(arguments = '.')
+
+test.pass_test()