buildtools/wafsamba/samba_python.py

   1 # waf build tool for building IDL files with pidl
   2
   3 import Build
   4 from samba_utils import *
   5 from samba_autoconf import *
   6
   7 from Configure import conf
   8
   9 @conf
  10 def SAMBA_CHECK_PYTHON(conf, mandatory=True, version=(2,4,2)):
  11     # enable tool to build python extensions
  12     interpreters = []
  13
  14     if conf.env['EXTRA_PYTHON']:
  15         conf.all_envs['extrapython'] = conf.env.copy()
  16         conf.setenv('extrapython')
  17         conf.env['PYTHON'] = conf.env['EXTRA_PYTHON']
  18         conf.env['IS_EXTRA_PYTHON'] = 'yes'
  19         conf.find_program('python', var='PYTHON', mandatory=True)
  20         conf.check_tool('python')
  21         try:
  22             conf.check_python_version((3, 3, 0))
  23         except Exception:
  24             warn('extra-python needs to be Python 3.3 or later')
  25             raise
  26         interpreters.append(conf.env['PYTHON'])
  27         conf.setenv('default')
  28
  29     conf.find_program('python', var='PYTHON', mandatory=mandatory)
  30     conf.check_tool('python')
  31     path_python = conf.find_program('python')
  32     conf.env.PYTHON_SPECIFIED = (conf.env.PYTHON != path_python)
  33     conf.check_python_version(version)
  34
  35     interpreters.append(conf.env['PYTHON'])
  36     conf.env.python_interpreters = interpreters
  37
  38
  39 @conf
  40 def SAMBA_CHECK_PYTHON_HEADERS(conf, mandatory=True):
  41     if conf.env["python_headers_checked"] == []:
  42         if conf.env['EXTRA_PYTHON']:
  43             conf.setenv('extrapython')
  44             _check_python_headers(conf, mandatory=True)
  45             conf.setenv('default')
  46
  47         _check_python_headers(conf, mandatory)
  48         conf.env["python_headers_checked"] = "yes"
  49
  50         if conf.env['EXTRA_PYTHON']:
  51             extraversion = conf.all_envs['extrapython']['PYTHON_VERSION']
  52             if extraversion == conf.env['PYTHON_VERSION']:
  53                 raise Utils.WafError("extrapython %s is same as main python %s" % (
  54                     extraversion, conf.env['PYTHON_VERSION']))
  55     else:
  56         conf.msg("python headers", "using cache")
  57
  58
  59 def _check_python_headers(conf, mandatory):
  60     conf.check_python_headers(mandatory=mandatory)
  61
  62     if conf.env['PYTHON_VERSION'] > '3':
  63         abi_pattern = os.path.splitext(conf.env['pyext_PATTERN'])[0]
  64         conf.env['PYTHON_SO_ABI_FLAG'] = abi_pattern % ''
  65     else:
  66         conf.env['PYTHON_SO_ABI_FLAG'] = ''
  67
  68
  69 def SAMBA_PYTHON(bld, name,
  70                  source='',
  71                  deps='',
  72                  public_deps='',
  73                  realname=None,
  74                  cflags='',
  75                  includes='',
  76                  init_function_sentinel=None,
  77                  local_include=True,
  78                  vars=None,
  79                  install=True,
  80                  enabled=True):
  81     '''build a python extension for Samba'''
  82
  83     if bld.env['IS_EXTRA_PYTHON']:
  84         name = 'extra-' + name
  85
  86     # when we support static python modules we'll need to gather
  87     # the list from all the SAMBA_PYTHON() targets
  88     if init_function_sentinel is not None:
  89         cflags += '-DSTATIC_LIBPYTHON_MODULES=%s' % init_function_sentinel
  90
  91     source = bld.EXPAND_VARIABLES(source, vars=vars)
  92
  93     if realname is not None:
  94         link_name = 'python_modules/%s' % realname
  95     else:
  96         link_name = None
  97
  98     bld.SAMBA_LIBRARY(name,
  99                       source=source,
 100                       deps=deps,
 101                       public_deps=public_deps,
 102                       includes=includes,
 103                       cflags=cflags,
 104                       local_include=local_include,
 105                       vars=vars,
 106                       realname=realname,
 107                       link_name=link_name,
 108                       pyext=True,
 109                       target_type='PYTHON',
 110                       install_path='${PYTHONARCHDIR}',
 111                       allow_undefined_symbols=True,
 112                       allow_warnings=True,
 113                       install=install,
 114                       enabled=enabled)
 115
 116 Build.BuildContext.SAMBA_PYTHON = SAMBA_PYTHON
 117
 118
 119 def pyembed_libname(bld, name, extrapython=False):
 120     return name + bld.env['PYTHON_SO_ABI_FLAG']
 121
 122 Build.BuildContext.pyembed_libname = pyembed_libname
 123
 124
 125 def gen_python_environments(bld, extra_env_vars=()):
 126     """Generate all Python environments
 127
 128     To be used in a for loop. Normally, the loop body will be executed once.
 129
 130     When --extra-python is used, the body will additionaly be executed
 131     with the extra-python environment active.
 132     """
 133     yield
 134
 135     if bld.env['EXTRA_PYTHON']:
 136         copied = ('GLOBAL_DEPENDENCIES', 'TARGET_TYPE') + tuple(extra_env_vars)
 137         for name in copied:
 138             bld.all_envs['extrapython'][name] = bld.all_envs['default'][name]
 139         default_env = bld.all_envs['default']
 140         bld.all_envs['default'] = bld.all_envs['extrapython']
 141         yield
 142         bld.all_envs['default'] = default_env
 143
 144 Build.BuildContext.gen_python_environments = gen_python_environments