Issue 2372: evaluate a Node's order-only prerequisites before the sources

and dependencies (so they can affect how the sources and dependencies
are built).

1 files changed, 67 insertions, 0 deletions

diff --git a/test/Requires/eval-order.py b/test/Requires/eval-order.py
new file mode 100644
index 0000000..9c1f25b
--- /dev/null
+++ b/test/Requires/eval-order.py
@@ -0,0 +1,67 @@
+#!/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 that env.Requires() nodes are evaluated before other children.
+"""
+
+import TestSCons
+
+test = TestSCons.TestSCons()
+
+test.write('SConstruct', """
+def copy_and_create_func(target, source, env):
+    fp = open(str(target[0]), 'wb')
+    for s in map(str, source):
+        fp.write(open(s, 'rb').read())
+    fp.close()
+    open('file.in', 'wb').write("file.in 1\\n")
+    return None
+copy_and_create = Action(copy_and_create_func)
+env = Environment()
+env.Requires('file.out', 'prereq.out')
+env.Command('file.out', 'file.in', Copy('$TARGET', '$SOURCES'))
+env.Command('prereq.out', 'prereq.in', copy_and_create)
+""")
+
+test.write('prereq.in', "prereq.in 1\n")
+
+# First:  build file.out.  prereq.out should be built first, and if
+# not, we'll get an error when the build action tries to use it to
+# build file.out.
+
+test.run(arguments = 'file.out')
+
+test.must_match('prereq.out', "prereq.in 1\n")
+test.must_match('file.out', "file.in 1\n")
+
+test.pass_test()
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4: