| #!/usr/bin/env python |
| # Copyright 2011 The Chromium Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """cups-config wrapper. |
| |
| cups-config, at least on Ubuntu Lucid and Natty, dumps all |
| cflags/ldflags/libs when passed the --libs argument. gyp would like |
| to keep these separate: cflags are only needed when compiling files |
| that use cups directly, while libs are only needed on the final link |
| line. |
| |
| This can be dramatically simplified or maybe removed (depending on GN |
| requirements) when this is fixed: |
| https://bugs.launchpad.net/ubuntu/+source/cupsys/+bug/163704 |
| is fixed. |
| """ |
| |
| from __future__import print_function |
| |
| import os |
| import subprocess |
| import sys |
| |
| def usage(): |
| print('usage: %s {--api-version|--cflags|--ldflags|--libs|--libs-for-gn} ' |
| '[sysroot]'% sys.argv[0]) |
| |
| |
| def run_cups_config(cups_config, mode): |
| """Run cups-config with all --cflags etc modes, parse out the mode we want, |
| and return those flags as a list.""" |
| |
| cups= subprocess.Popen([cups_config,'--cflags','--ldflags','--libs'], |
| stdout=subprocess.PIPE, universal_newlines=True) |
| flags= cups.communicate()[0].strip() |
| |
| flags_subset=[] |
| for flagin flags.split(): |
| flag_mode=None |
| if flag.startswith('-l'): |
| flag_mode='--libs' |
| elif(flag.startswith('-L')or flag.startswith('-Wl,')): |
| flag_mode='--ldflags' |
| elif(flag.startswith('-I')or flag.startswith('-D')): |
| flag_mode='--cflags' |
| |
| # Be conservative: for flags where we don't know which mode they |
| # belong in, always include them. |
| if flag_modeisNoneor flag_mode== mode: |
| flags_subset.append(flag) |
| |
| # Note: cross build is confused by the option, and may trigger linker |
| # warning causing build error. |
| if'-lgnutls'in flags_subset: |
| flags_subset.remove('-lgnutls') |
| |
| return flags_subset |
| |
| |
| def main(): |
| if len(sys.argv)<2: |
| usage() |
| return1 |
| |
| mode= sys.argv[1] |
| if len(sys.argv)>2and sys.argv[2]: |
| sysroot= sys.argv[2] |
| cups_config= os.path.join(sysroot,'usr','bin','cups-config') |
| ifnot os.path.exists(cups_config): |
| print('cups-config not found: %s'% cups_config) |
| return1 |
| else: |
| cups_config='cups-config' |
| |
| if mode=='--api-version': |
| subprocess.call([cups_config,'--api-version']) |
| return0 |
| |
| # All other modes get the flags. |
| if modenotin('--cflags','--libs','--libs-for-gn','--ldflags'): |
| usage() |
| return1 |
| |
| if mode=='--libs-for-gn': |
| gn_libs_output=True |
| mode='--libs' |
| else: |
| gn_libs_output=False |
| |
| flags= run_cups_config(cups_config, mode) |
| |
| if gn_libs_output: |
| # Strip "-l" from beginning of libs, quote, and surround in [ ]. |
| print('[') |
| for libin flags: |
| if lib[:2]=="-l": |
| print('"%s", '% lib[2:]) |
| print(']') |
| else: |
| print(' '.join(flags)) |
| |
| return0 |
| |
| |
| if __name__=='__main__': |
| sys.exit(main()) |
