pidl/wscript

   1 #!/usr/bin/env python
   2
   3 import os, string
   4 from samba_utils import MODE_755
   5 from waflib import Logs
   6
   7 # This function checks if a perl module is installed on the system.
   8 def check_system_perl_module(conf, module, version=None):
   9     bundle_name = module.replace('::', '_')
  10     module_check = module
  11
  12     # Create module string with version
  13     if version:
  14         module_check = module + ' ' + str(version)
  15
  16     # Check if we have to bundle it.
  17     if conf.LIB_MUST_BE_BUNDLED(bundle_name.lower()):
  18         return False
  19
  20     # Check for system perl module
  21     if conf.check_perl_module(module_check) is None:
  22         return False
  23
  24     conf.define('USING_SYSTEM_%s' % bundle_name.upper(), 1)
  25
  26     return True
  27
  28 def options(opt):
  29     return
  30
  31 def configure(conf):
  32     # Check if perl(Parse::Yapp::Driver) is available.
  33     check_system_perl_module(conf, "Parse::Yapp::Driver", 1.05)
  34
  35     # yapp is used for building the parser
  36     conf.find_program('yapp', var='YAPP')
  37
  38 def build(bld):
  39
  40     # we want to prefer the git version of the parsers if we can.
  41     # Only if the source has changed do we want to re-run yapp
  42     # But we force the developer to use the pidl standalone build
  43     # to regenerate the files.
  44     # TODO: only warn in developer mode and if 'git diff HEAD'
  45     #       shows a difference
  46     warn_about_grammar_changes = ('PIDL_BUILD_WARNINGS' in bld.env and (
  47         bld.IS_NEWER('idl.yp', 'lib/Parse/Pidl/IDL.pm') or
  48         bld.IS_NEWER('expr.yp', 'lib/Parse/Pidl/Expr.pm')))
  49
  50     if warn_about_grammar_changes:
  51         Logs.warn('''
  52 Pidl grammar files have changed. Please use the pidl standalone build
  53 to regenerate them with yapp.
  54
  55 $ cd ../pidl
  56 $ perl Makefile.PL
  57 $ make lib/Parse/Pidl/IDL.pm lib/Parse/Pidl/Expr.pm
  58 $ git add lib/Parse/Pidl/IDL.pm lib/Parse/Pidl/Expr.pm
  59 $ git commit
  60 $ cd -
  61
  62 If your 100% sure you haven't changed idl.yp and expr.yp
  63 try this to avoid this message:
  64
  65 $ touch ../pidl/lib/Parse/Pidl/IDL.pm ../pidl/lib/Parse/Pidl/Expr.pm
  66 ''')
  67