source: issm/trunk/src/m/os/petscversion.py@ 13975

import os
from issmdir import *
from MatlabFuncs import *

def petscversion():
        """
        PETSCVERSION - recover petsc version number, inside config.h file
 
           Usage:
              PETSC_VERSION=petscversion();
        """

        #default
        PETSC_VERSION=3

        configfile=os.path.join(issmdir(),'config.h')
        if not os.path.exists(configfile):
                raise RuntimeError("File '%s' not found. ISSM has not been configured yet!" % configfile)

        #go through the file, and recover the line we want
        try:
                fid=open(configfile,'r')
        except IOError as e:
                raise IOerror("could not open file: '%s'" % configfile)

        for tline in fid:
                if strncmp(tline,'#define _PETSC_MAJOR_',21):
                        PETSC_VERSION=int(tline[22])
                        break

        fid.close()

        return PETSC_VERSION