boundary_conditions.py

#!/usr/bin/python

"""
These functions offer easy ways to automate changes in OpenFOAM settings by 
modification of 'constant', 'system', '0' files and other files that define an 
OpenFOAM case.
"""

import os
import sys

def read_file(file_name):
  with open(file_name) as f:
    content = f.readlines()
  f.close()
  return content

def modify_empty_bc(file_path, patch_name, new_bc):
  file_contents = read_file(file_path)
  section_flag = False
  with open(file_path, 'w') as f:
    for line in file_contents:
      if patch_name in line:
        section_flag = True
      if section_flag and "type" in line:
        line = line.replace("patch", new_bc)
      if section_flag and "physicalType" in line:
        line = line.replace("patch", new_bc)
      if "}" in line and section_flag == True:
        section_flag = False
      f.write(line)
  f.close()
  return