test/fixture/mycompile.py

   1 # SPDX-License-Identifier: MIT
   2 #
   3 # Copyright The SCons Foundation
   4
   5 """
   6 Phony compiler for testing SCons.
   7
   8 Copies its source files to the target file, dropping lines that match
   9 a pattern, so we can recognize the tool has made a modification.
  10 Intended for use as a *COM construction variable.
  11
  12 Calling convention is:
  13   argv[1] the function of the script (cc, c++, as, link etc.)
  14   argv[2] the output file to write
  15   argv[3:] one or more input files to "compile"
  16
  17 Invocation often looks like:
  18   Environment(CCCOM = r'%(_python_)s mycompile.py cc $TARGET $SOURCE', ...
  19 """
  20
  21 import fileinput
  22 import sys
  23
  24 def fake_compile():
  25     skipline = f"/*{sys.argv[1]}*/\n".encode()
  26     with open(sys.argv[2], 'wb') as ofp, fileinput.input(files=sys.argv[3:], mode='rb') as ifp:
  27         for line in ifp:
  28             if line != skipline:
  29                 ofp.write(line)
  30
  31
  32 if __name__ == '__main__':
  33     fake_compile()
  34     sys.exit(0)