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#
# dsextras.py - Extra classes and utilities
#
# TODO:
# Make it possible to import codegen from another dir
#
from commands import getoutput, getstatusoutput
from distutils.command.build_ext import build_ext
from distutils.command.install_lib import install_lib
from distutils.extension import Extension
import fnmatch
import os
import string
import sys
GLOBAL_INC = []
GLOBAL_MACROS = []
class InstallLib(install_lib):
local_outputs = []
local_inputs = []
template_options = {}
def prepare(self):
self.prefix = os.sep.join(self.install_dir.split(os.sep)[:-4])
self.exec_prefix = os.path.join(self.prefix, 'bin')
self.includedir = os.path.join(self.prefix, 'include')
self.libdir = os.path.join(self.prefix, 'lib')
self.datadir = os.path.join(self.prefix, 'share')
self.add_template_option('prefix', self.prefix)
self.add_template_option('exec_prefix', self.exec_prefix)
self.add_template_option('includedir', self.includedir)
self.add_template_option('libdir', self.libdir)
self.add_template_option('datadir', self.datadir)
self.add_template_option('PYTHON', sys.executable)
def set_install_dir(self, install_dir):
self.install_dir = install_dir
def add_template_option(self, name, value):
self.template_options['@%s@' % name] = value
def install_template(self, filename, install_dir):
"""Install template filename into target directory install_dir."""
output_file = os.path.split(filename)[-1][:-3]
template = open(filename).read()
for key, value in self.template_options.items():
template = template.replace(key, value)
output = os.path.join(install_dir, output_file)
self.mkpath(install_dir)
open(output, 'w').write(template)
self.local_inputs.append(filename)
self.local_outputs.append(output)
return output
def get_outputs(self):
return install_lib.get_outputs(self) + self.local_outputs
def get_inputs(self):
return install_lib.get_inputs(self) + self.local_inputs
def pkgc_version_check(name, longname, req_version):
is_installed = not os.system('pkg-config --exists %s' % name)
if not is_installed:
print "Could not find %s" % longname
return 0
orig_version = getoutput('pkg-config --modversion %s' % name)
version = map(int, orig_version.split('.'))
pkc_version = map(int, req_version.split('.'))
if version >= pkc_version:
return 1
else:
print "Warning: Too old version of %s" % longname
print " Need %s, but %s is installed" % \
(self.pkc_version, orig_version)
self.can_build_ok = 0
return 0
class PkgConfigExtension(Extension):
can_build_ok = None
def __init__(self, **kwargs):
name = kwargs['pkc_name']
kwargs['include_dirs'] = self.get_include_dirs(name) + GLOBAL_INC
kwargs['define_macros'] = GLOBAL_MACROS
kwargs['libraries'] = self.get_libraries(name)
kwargs['library_dirs'] = self.get_library_dirs(name)
self.name = kwargs['name']
self.pkc_name = kwargs['pkc_name']
self.pkc_version = kwargs['pkc_version']
del kwargs['pkc_name'], kwargs['pkc_version']
Extension.__init__(self, **kwargs)
def get_include_dirs(self, name):
output = getoutput('pkg-config --cflags-only-I %s' % name)
return output.replace('-I', '').split()
def get_libraries(self, name):
output = getoutput('pkg-config --libs-only-l %s' % name)
return output.replace('-l', '').split()
def get_library_dirs(self, name):
output = getoutput('pkg-config --libs-only-L %s' % name)
return output.replace('-L', '').split()
def can_build(self):
"""If the pkg-config version found is good enough"""
if self.can_build_ok != None:
return self.can_build_ok
retval = os.system('pkg-config --exists %s' % self.pkc_name)
if retval:
print ("* %s.pc could not be found, bindings for %s"
" will not be built." % (self.pkc_name, self.name))
self.can_build_ok = 0
return 0
orig_version = getoutput('pkg-config --modversion %s' % self.pkc_name)
version = map(int, orig_version.split('.'))
pkc_version = map(int, self.pkc_version.split('.'))
if version >= pkc_version:
self.can_build_ok = 1
return 1
else:
print "Warning: Too old version of %s" % self.pkc_name
print " Need %s, but %s is installed" % \
(self.pkc_version, orig_version)
self.can_build_ok = 0
return 0
def generate(self):
pass
class Template:
def __init__(self, override, output, defs, prefix,
register=[], load_types=None):
self.override = override
self.defs = defs
self.register = register
self.output = output
self.prefix = prefix
self.load_types = load_types
def check_dates(self):
if not os.path.exists(self.output):
return 0
files = self.register[:]
files.append(self.override)
# files.append('setup.py')
files.append(self.defs)
newest = 0
for file in files:
test = os.stat(file)[8]
if test > newest:
newest = test
if newest < os.stat(self.output)[8]:
return 1
return 0
def generate(self):
# We must insert it first, otherwise python will try '.' first,
# in which it exist a "bogus" codegen (the third import line
# here will fail)
sys.path.insert(0, 'codegen')
from override import Overrides
from defsparser import DefsParser
from codegen import register_types, write_source, FileOutput
if self.check_dates():
return
for item in self.register:
dp = DefsParser(item)
dp.startParsing()
register_types(dp)
if self.load_types:
globals = {}
execfile(self.load_types, globals)
dp = DefsParser(self.defs)
dp.startParsing()
register_types(dp)
fd = open(self.output, 'w')
write_source(dp,
Overrides(self.override),
self.prefix,
FileOutput(fd, self.output))
fd.close()
class TemplateExtension(PkgConfigExtension):
def __init__(self, **kwargs):
name = kwargs['name']
defs = kwargs['defs']
output = defs[:-5] + '.c'
override = kwargs['override']
load_types = kwargs.get('load_types')
self.templates = []
self.templates.append(Template(override, output, defs, 'py' + name,
kwargs['register'], load_types))
del kwargs['register'], kwargs['override'], kwargs['defs']
if load_types:
del kwargs['load_types']
if kwargs.has_key('output'):
kwargs['name'] = kwargs['output']
del kwargs['output']
PkgConfigExtension.__init__(self, **kwargs)
def generate(self):
map(lambda x: x.generate(), self.templates)
class BuildExt(build_ext):
def build_extension(self, ext):
# Generate eventual templates before building
if hasattr(ext, 'generate'):
ext.generate()
build_ext.build_extension(self, ext)
def list_files(dir):
"""List all files in a dir, with filename match support:
for example: glade/*.glade will return all files in the glade directory
that matches *.glade. It also looks up the full path"""
if dir.find(os.sep) != -1:
parts = dir.split(os.sep)
dir = string.join(parts[:-1], os.sep)
pattern = parts[-1]
else:
pattern = dir
dir = '.'
dir = os.path.abspath(dir)
retval = []
for file in os.listdir(dir):
if fnmatch.fnmatch(file, pattern):
retval.append(os.path.join(dir, file))
return retval
def have_pkgconfig():
"""Checks for the existence of pkg-config"""
status = getstatusoutput('pkg-config')[0]
if status == 256:
return 1
|
