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import sys
import os
REMOVE_THESE = ["-I/usr/include", "-I/usr/include/", "-L/usr/lib", "-L/usr/lib/"]
class Pkg:
def __init__(self, pkg_name):
self.name = pkg_name
self.priority = 0
self.vars = {}
def parse(self, pkg_config_path):
f = None
for pkg_path in pkg_config_path.split(':'):
if pkg_path[-1] != '/':
pkg_path += '/'
fname = pkg_path + self.name + '.pc'
try:
f = open(fname, "r")
break
except:
continue
if not f:
#sys.stderr.write("pkgconfig.py: unable to find %s.pc in %s\n" % (self.name, pkg_config_path))
return False
for line in f.readlines():
line = line.strip()
if not line:
continue
if line[0]=='#':
continue
pos1 = line.find('=')
pos2 = line.find(':')
if pos1 > 0 and (pos1 < pos2 or pos2 < 0):
pos = pos1
elif pos2 > 0 and (pos2 < pos1 or pos1 < 0):
pos = pos2
else:
continue
name = line[:pos].lower()
value = line[pos+1:]
self.vars[name] = value
f.close()
for name in self.vars.keys():
value = self.vars[name]
while True:
pos1 = value.find("${")
if pos1 < 0:
break
pos2 = value.find("}")
if pos2 < 0:
break
value = value.replace(value[pos1:pos2+1], self.vars[value[pos1+2:pos2]])
self.vars[name] = value
return True
def requires(self):
if not 'requires' in self.vars:
return []
deps = []
req_list = self.vars['requires']
for req_item in req_list.split(','):
req_item = req_item.strip()
for i in range(len(req_item)):
if "=<>".find(req_item[i]) >= 0:
deps.append(req_item[:i].strip())
break
return deps
def libs(self):
if not 'libs' in self.vars:
return []
return self.vars['libs'].split(' ')
def cflags(self):
if not 'cflags' in self.vars:
return []
return self.vars['cflags'].split(' ')
def calculate_pkg_priority(pkg, pkg_dict, loop_cnt):
if loop_cnt > 10:
sys.stderr.write("Circular dependency with pkg %s\n" % (pkg))
return 0
reqs = pkg.requires()
prio = 1
for req in reqs:
if not req in pkg_dict:
continue
req_pkg = pkg_dict[req]
prio += calculate_pkg_priority(req_pkg, pkg_dict, loop_cnt+1)
return prio
if __name__ == "__main__":
pkg_names = []
pkg_dict = {}
commands = []
exist_check = False
for i in range(1,len(sys.argv)):
if sys.argv[i][0] == '-':
cmd = sys.argv[i]
commands.append(cmd)
if cmd=='--exists':
exist_check = True
elif cmd=="--help":
print "This is not very helpful, is it"
sys.exit(0)
elif cmd=="--version":
print "0.1"
sys.exit(0)
else:
pkg_names.append(sys.argv[i])
# Fix search path
PKG_CONFIG_PATH = os.getenv("PKG_CONFIG_PATH", "").strip()
if not PKG_CONFIG_PATH:
PKG_CONFIG_PATH="/usr/local/lib/pkgconfig:/usr/lib/pkgconfig"
PKG_CONFIG_PATH = PKG_CONFIG_PATH.replace(";", ":")
# Parse files
for pkg_name in pkg_names:
pkg = Pkg(pkg_name)
if not pkg.parse(PKG_CONFIG_PATH):
sys.exit(1)
pkg_dict[pkg_name] = pkg
if exist_check:
sys.exit(0)
# Calculate priority based on dependency
for pkg_name in pkg_dict.keys():
pkg = pkg_dict[pkg_name]
pkg.priority = calculate_pkg_priority(pkg, pkg_dict, 1)
# Sort package based on dependency
pkg_names = sorted(pkg_names, key=lambda pkg_name: pkg_dict[pkg_name].priority, reverse=True)
# Get the options
opts = []
for cmd in commands:
if cmd=='--libs':
for pkg_name in pkg_names:
libs = pkg_dict[pkg_name].libs()
for lib in libs:
opts.append(lib)
if lib[:2]=="-l":
break
for pkg_name in pkg_names:
opts += pkg_dict[pkg_name].libs()
elif cmd=='--cflags':
for pkg_name in pkg_names:
opts += pkg_dict[pkg_name].cflags()
elif cmd[0]=='-':
sys.stderr.write("pkgconfig.py: I don't know how to handle " + sys.argv[i] + "\n")
filtered_opts = []
for opt in opts:
opt = opt.strip()
if not opt:
continue
if REMOVE_THESE.count(opt) != 0:
continue
if opt != '-framework' and opt != '--framework' and filtered_opts.count(opt) != 0:
if len(filtered_opts) and (filtered_opts[-1] == '-framework' or filtered_opts[-1] == '--framework'):
filtered_opts.pop()
continue
filtered_opts.append(opt)
print ' '.join(filtered_opts)