text: #!/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 we don't rebuild things unnecessarily when the order of
  signatures changes because an included file shifts from the local sandbox
  to a Repository and vice versa.
  """
  
  import TestSCons
  
  _exe = TestSCons._exe
  
  test = TestSCons.TestSCons()
  
  test.subdir('repository', 'work')
  
  repository = test.workpath('repository')
  work_foo = test.workpath('work', 'foo' + _exe)
  work_foo_h = test.workpath('work', 'foo.h')
  
  test.write(['work', 'SConstruct'], """
  Repository(r'%s')
  env = Environment(CPPPATH = ['.'])
  env.Program(target = 'foo', source = 'foo.c')
  """ % repository)
  
  foo_h_contents = """\
  #define STRING1 "foo.h"
  """
  
  bar_h_contents = """\
  #define STRING2 "bar.h"
  """
  
  test.write(['repository', 'foo.h'], foo_h_contents)
  
  test.write(['repository', 'bar.h'], bar_h_contents)
  
  test.write(['repository', 'foo.c'], r"""
  #include <stdio.h>
  #include <stdlib.h>
  #include <foo.h>
  #include <bar.h>
  int
  main(int argc, char *argv[])
  {
          argv[argc++] = "--";
          printf("%s\n", STRING1);
          printf("%s\n", STRING2);
          printf("repository/foo.c\n");
          exit (0);
  }
  """)
  
  # Make the entire repository non-writable, so we'll detect
  # if we try to write into it accidentally.
  test.writable('repository', 0)
  
  
  
  test.run(chdir = 'work', arguments = '.')
  
  test.run(program = work_foo, stdout =
  """foo.h
  bar.h
  repository/foo.c
  """)
  
  test.up_to_date(chdir = 'work', arguments = '.')
  
  
  
  # Now create the bar.h file locally, and make sure it's still up-to-date.
  # This will change the order in which the include files are listed when
  # calculating the signature; the old order was something like:
  #       /var/tmp/.../bar.h
  #       /var/tmp/.../far.h
  # and the new order will be:
  #       /var/tmp/.../far.h
  #       bar.h
  # Because we write the same bar.h file contents, this should not cause
  # a rebuild (because we sort the resulting signatures).
  
  test.write(['work', 'bar.h'], bar_h_contents)
  
  test.up_to_date(chdir = 'work', arguments = '.')
  
  
  
  # And for good measure, write the same foo.h file locally.
  
  test.write(['work', 'foo.h'], foo_h_contents)
  
  test.up_to_date(chdir = 'work', arguments = '.')
  
  
  
  test.pass_test()
  
  # Local Variables:
  # tab-width:4
  # indent-tabs-mode:nil
  # End:
  # vim: set expandtab tabstop=4 shiftwidth=4:
  