unified diff

diff.py

import difflib
import io 

def generate_unified_diff(file1_path, file2_path, output_path):
    with open(file1_path, 'r') as file1, open(file2_path, 'r') as file2:
        lines1 = file1.readlines()
        lines2 = file2.readlines()

    diff = difflib.unified_diff(lines1, lines2, fromfile='config_old.txt', tofile='config_new.txt')
    string_buffer = io.StringIO()
    # Write the 'diff' lines to the in-memory buffer
    string_buffer.writelines(diff)
    diff_string = string_buffer.getvalue()

    # Close the buffer
    string_buffer.close()

    return diff_string

if __name__ == "__main__":
    config_old_path = "test.txt"
    config_new_path = "test2.txt"
    output_diff_path = "test.diff"

    diff_output = generate_unified_diff(config_old_path, config_new_path, output_diff_path)
    print(f"Unified diff generated and saved to {output_diff_path}")
    print(diff_output)