pidl/wscript

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