"""
     python/ui/systeminfo.py: CCP4MG Molecular Graphics Program
     Copyright (C) 2001-2006 University of York, CCLRC

     This library is free software: you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public License
     version 3, modified in accordance with the provisions of the 
     license to address the requirements of UK law.
 
     You should have received a copy of the modified GNU Lesser General 
     Public License along with this library.  If not, copies may be 
     downloaded from http://www.ccp4.ac.uk/ccp4license.php
 
     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 Lesser General Public License for more details.
"""
import sys,os

def print_system_info():
  build_data_file = os.path.join(os.environ["CCP4MG"],'lib','TIMESTAMP')
  f=''
  try:	
    f=open(build_data_file,'r')
    build_data=f.read()
    print build_data
  except IOError:
    pass
  if f:
    f.close()
  os_name=''
  if os.name != "posix":
    os_name = sys.platform
    uname_os = sys.platform
  else:
    (uname_os, uname_host, uname_release, uname_version, uname_machine) = os.uname()
    os_name = uname_os+" "+uname_host+" "+uname_release+" "+uname_version+" "+uname_machine
  if uname_os=="Linux":
    import string
    release_file = "/etc/issue"
    release_file_fedora = "/etc/fedora-release"
    release_file_redhat = "/etc/redhat-release"
    release_file_suse = "/etc/suse-release"
    release_file_mandrake = "/etc/mandrake-release"
    release_info=''
    if os.access(release_file_fedora,os.F_OK|os.R_OK):
      f=open(release_file_fedora)
      release_lines = f.readlines()
      f.close()
      for line in release_lines:
        if len(line)>5 and line[0:6]=="Fedora":
           release_bits = string.split(line)
           release_info = release_bits[0]+" "+release_bits[1]+" "+release_bits[3]
    elif os.access(release_file_redhat,os.F_OK|os.R_OK):
      f=open(release_file_redhat)
      release_lines = f.readlines()
      f.close()
      for line in release_lines:
        if len(line)>6 and line[0:7]=="Red Hat":
           release_bits = string.split(line)
           release_info = release_bits[0]+" "+release_bits[1]+" "+release_bits[4]
      if release_info == '':
        if len(release_lines) == 1:
          release_info = release_lines[0].rstrip()
    elif os.access(release_file_suse,os.F_OK|os.R_OK):
      f=open(release_file_suse)
      release_lines = f.readlines()
      f.close()
      for line in release_lines:
        if len(line)>3 and line[0:4]=="SuSE":
           release_bits = string.split(line)
           release_info = release_bits[2]+" "+release_bits[4]
    elif os.access(release_file_mandrake,os.F_OK|os.R_OK):
      f=open(release_file_mandrake)
      release_lines = f.readlines()
      f.close()
      for line in release_lines:
        if len(line)>12 and line[0:13]=="Mandrakelinux":
           release_bits = string.split(line)
           release_info = release_bits[0]+" "+release_bits[0]+" "+release_bits[2]
        if len(line)>13 and line[0:14]=="Mandrake Linux":
           release_bits = string.split(line)
           release_info = release_bits[0]+" "+release_bits[0]+" "+release_bits[3]
    elif os.access(release_file,os.F_OK|os.R_OK):
      f=open(release_file)
      release_lines = f.readlines()
      f.close()
      for line in release_lines:
        if len(line)>5 and line[0:6]=="Fedora":
           release_bits = string.split(line)
           release_info = release_bits[0]+" "+release_bits[1]+" "+release_bits[3]
      if release_info == '':
        if len(release_lines) == 1:
          release_info = release_lines[0].rstrip()
    print "Running Machine Operating System:", release_info
  print "Running Machine OS details:", os_name