import config.base

import os
import re

class Configure(config.base.Configure):
  def __init__(self, framework):
    config.base.Configure.__init__(self, framework)
    self.headerPrefix = 'GALE'
    self.substPrefix  = 'GALE'
    # List of packages actually found
    self.framework.packages = []
    return

  def __str__(self):
    return ''
                              
  def setupHelp(self, help):
    import nargs

# This should also do datadir, includedir, infodir, libexecdir,
# localstatedir, sbindir, sharedstatedir, sysconfdir, and maybe
# oldincludedir.  But it should all be moved into BuildSystem proper.

    help.addArgument('Install', '-prefix=<path>',            nargs.Arg(None, '', 'Specify location to install Gale (eg. /usr/local)'))
    help.addArgument('Install', '-exec_prefix=<path>',
                     nargs.Arg(None, '${prefix}',
                               'Specify location to install Gale (eg. /usr/local)'))
    help.addArgument('Install', '-bindir=<path>',
                     nargs.Arg(None, '${exec_prefix}/bin',
                               'Specify location to install Gale binaries (eg. /usr/local/bin)'))
    help.addArgument('Install', '-libdir=<path>',
                     nargs.Arg(None, '${exec_prefix}/lib',
                               'Specify location to install Gale libraries (eg. /usr/local/lib)'))
    help.addArgument('Install', '-mandir=<path>',
                     nargs.Arg(None, '${exec_prefix}/man',
                               'Specify location to install Gale man pages (eg. /usr/local/man)'))
    help.addArgument('Install', '-includedir=<path>',
                     nargs.Arg(None, '${exec_prefix}/include',
                               'Specify location to install Gale header files (eg. /usr/local/include)'))
    return

  def setupDependencies(self, framework):
    config.base.Configure.setupDependencies(self, framework)
    self.setCompilers  = framework.require('config.setCompilers',      self)
    self.compilers     = framework.require('config.compilers',         self)
    self.libxml2       = framework.require('Gale.packages.libxml2',    self)
    self.petsc         = framework.require('Gale.packages.petsc',      self)
    self.C99           = framework.require('Gale.packages.C99_functions',self)
    self.mpi           = framework.require('config.packages.MPI',       self)

    self.compilers.headerPrefix = self.headerPrefix
    return

  def configureDefaults(self):
    return

  def configureScript(self):
    '''Output a script reconfigure.py which will reproduce the configuration'''
    import nargs

    scriptName = 'reconfigure.py'
    args = dict([(nargs.Arg.parseArgument(arg)[0], arg) for arg in self.framework.clArgs])
    if 'configModules' in args:
      del args['configModules']
    if 'optionsModule' in args:
      del args['optionsModule']
    f = file(scriptName, 'w')
    f.write('#!/usr/bin/env python\n')
    f.write('if __name__ == \'__main__\':\n')
    f.write('  import sys\n')
    f.write('  import configure\n')
    f.write('  configure_options = '+repr(args.values())+'\n')
    f.write('  configure.gale_configure(configure_options)\n')
    f.close()
    try:
      os.chmod(scriptName, 0775)
    except OSError, e:
      self.framework.logPrint('Unable to make reconfigure script executable:\n'+str(e))
    self.framework.actions.addArgument('PETSc', 'File creation', 'Created '+scriptName+' for automatic reconfiguration')
    return

  def configureInstall(self):
    '''Setup the directories for installation'''
    if not self.framework.argDB['prefix']:
      self.framework.argDB['prefix']=os.getcwd()
    self.installdir = self.framework.argDB['prefix']
    return

  def configureGCOV(self):
    if self.framework.argDB['with-gcov']:
      self.addDefine('USE_GCOV','1')
    return

  def configure(self):
    self.executeTest(self.configureScript)
    self.executeTest(self.configureInstall)
    self.executeTest(self.configureGCOV)
    self.framework.log.write('================================================================================\n')
    self.logClear()
    return