GetParBuilder.py

Go to the documentation of this file.

#  This file is part of repro, a Python package for automating 
#  reproducible research in scientific computing.
#
#  Copyright (C) 2008  Gilles Hennenfent, Sean Ross-Ross
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.

##
# 
# 

from subprocess import Popen, PIPE

##
# 
#     @todo Documentation
#     
def get_par_act( target, source, env ):
    
    par = env['par']
    src = source[0].path
    suffix = source[0].suffix
    GETPAR = env['GETPAR'][suffix]
    
    if isinstance( GETPAR, str ):
        GETPAR = env.subst( GETPAR, source=source )
        p0 = Popen( GETPAR, shell=True, stdout=PIPE )
        err = p0.wait()
        
        if err:
            raise Exception("command: '%s' failed" %GETPAR )
        
        val = p0.stdout.readline()
        type = env.get('type',eval)
        value = type( val )
    else:
        value = GETPAR( source, env, par )
    
    print "\t%(par)s=%(value)s " %vars( )
    target[0].write( value )
    return

##
# 
#     @todo Documentation
#     
def get_par_method( self,source, par, *p,**kw ):

    target=self.Value( par )
    return self._GetPar( target, source, par=par, *p, **kw )

##
# 
#     @todo Documentation
#     
def get_par_emitter( target, source, env ):
    
    targets = []
    for src in source:
        targets.append( env.Value( env['par'] ) )
    
    return targets, source

---