search_replace.py

# https://stackoverflow.com/a/6257321/1134134

import os, fnmatch
def findReplace(directory, find, replace, filePattern):
    for path, dirs, files in os.walk(os.path.abspath(directory)):
        for filename in fnmatch.filter(files, filePattern):
            filepath = os.path.join(path, filename)
            s = ""
            with open(filepath) as f:
                for line in f:
                    if ("source \"" in line) and ("*" in line):
                        possibly_modified_line = line.replace('source', 'gsource')
                    else:
                        possibly_modified_line = line
                    s += possibly_modified_line
            with open(filepath, "w") as f:
                f.write(s)

findReplace(".", "not_in_use", "not_in_use", "*Kconfig*")