Home | History | Annotate | Download | only in gn
      1 #!/usr/bin/env python
      2 #
      3 # Copyright 2016 Google Inc.
      4 #
      5 # Use of this source code is governed by a BSD-style license that can be
      6 # found in the LICENSE file.
      7 
      8 import os
      9 import subprocess
     10 import sys
     11 
     12 # Equivalent to: rm -f $2 && $1 rcs $2 @$3
     13 
     14 ar, output, rspfile = sys.argv[1:]
     15 
     16 if os.path.exists(output):
     17   os.remove(output)
     18 
     19 if sys.platform != 'darwin':
     20   sys.exit(subprocess.call([ar, "rcs", output, "@" + rspfile]))
     21 
     22 # Mac ar doesn't support @rspfile syntax.
     23 objects = open(rspfile).read().split()
     24 # It also spams stderr with warnings about objects having no symbols.
     25 pipe = subprocess.Popen([ar, "rcs", output] + objects, stderr=subprocess.PIPE)
     26 _, err = pipe.communicate()
     27 for line in err.splitlines():
     28   if 'has no symbols' not in line:
     29     sys.stderr.write(line + '\n')
     30 sys.exit(pipe.returncode)
     31