1 #!/usr/bin/env python 2 # Copyright (c) 2011 The Chromium Authors. All rights reserved. 3 # Use of this source code is governed by a BSD-style license that can be 4 # found in the LICENSE file. 5 6 """cups-config wrapper. 7 8 cups-config, at least on Ubuntu Lucid and Natty, dumps all 9 cflags/ldflags/libs when passed the --libs argument. gyp would like 10 to keep these separate: cflags are only needed when compiling files 11 that use cups directly, while libs are only needed on the final link 12 line. 13 14 TODO(evan): remove me once 15 https://bugs.launchpad.net/ubuntu/+source/cupsys/+bug/163704 16 is fixed. 17 """ 18 19 import subprocess 20 import sys 21 22 def usage(): 23 print 'usage: %s {--cflags|--ldflags|--libs}' % sys.argv[0] 24 25 26 def run_cups_config(mode): 27 """Run cups-config with all --cflags etc modes, parse out the mode we want, 28 and return those flags as a list.""" 29 30 cups = subprocess.Popen(['cups-config', '--cflags', '--ldflags', '--libs'], 31 stdout=subprocess.PIPE) 32 flags = cups.communicate()[0].strip() 33 34 flags_subset = [] 35 for flag in flags.split(): 36 flag_mode = None 37 if flag.startswith('-l'): 38 flag_mode = '--libs' 39 elif (flag.startswith('-L') or flag.startswith('-Wl,')): 40 flag_mode = '--ldflags' 41 elif (flag.startswith('-I') or flag.startswith('-D')): 42 flag_mode = '--cflags' 43 44 # Be conservative: for flags where we don't know which mode they 45 # belong in, always include them. 46 if flag_mode is None or flag_mode == mode: 47 flags_subset.append(flag) 48 49 return flags_subset 50 51 52 def main(): 53 if len(sys.argv) != 2: 54 usage() 55 return 1 56 57 mode = sys.argv[1] 58 if mode not in ('--cflags', '--libs', '--ldflags'): 59 usage() 60 return 1 61 flags = run_cups_config(mode) 62 print ' '.join(flags) 63 return 0 64 65 66 if __name__ == '__main__': 67 sys.exit(main()) 68
