Py script for updating symfony templates from 2.8 to 4.4

import os

import argparse

import re

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# Define the list of directory names to look for

target_directories = ["landing", "checkout", "please_wait", "thank_you", "email", "report_abuse"]

​

# Pattern to find the form_enctype usage

form_enctype_pattern = re.compile(r'\{\{\s*form_enctype\(([^)]+)\)\s*\}\}')

​

# Regular expression pattern to replace 'templates/landing/%current_folder%' with 'page_template_dynamic/landing/%current_folder%'

templates_landing_pattern = re.compile(r'templates/landing/([^/]+)')

​

def parse_arguments():

    parser = argparse.ArgumentParser(description='Search directories and optionally replace content.')

    parser.add_argument('--replace', action='store_true', help='Activate replace mode.')

    return parser.parse_args()

​

def scan_file(file_path, replace=False):

    try:

        with open(file_path, 'r+', encoding='utf-8') as file:

            lines = file.readlines()

            modified = False

            new_lines = []

​

            print(f"\nScanning file: {file_path}")  # Add a line to separate file outputs

            for line in lines:

                original_line = line

​

                # Check and replace '@AppUpgrade/Template' with 'page_template'

                if '@AppUpgrade/Template' in line:

                    line = line.replace('@AppUpgrade/Template', 'page_template')

                    if not replace:

                        print(f"\nDry run: Would replace '@AppUpgrade/Template' with 'page_template' in line:")

                        print(f"Original: {original_line.strip()}")

                        print(f"Modified: {line.strip()}")

​

                    modified = True

​

                # Check and replace '{% include ':templates/' with '{% include 'page_template_dynamic/'

                original_include = ":templates/"

                new_include = "page_template_dynamic/"

                if original_include in line:

                    line = line.replace(original_include, new_include)

                    if not replace:

                        print(f"\nDry run: Would replace '{original_include}' with '{new_include}' in line:")

                        print(f"Original: {original_line.strip()}")

                        print(f"Modified: {line.strip()}")

​

                    modified = True

​

                # Regex to replace '/<any>:<any>.twig' with '/<any>/<any>.twig'

                line, count = re.subn(r'(/[^:/]+):([^:/]+\.twig)', r'\1/\2', line)

                if count > 0 and not replace:

                    print(f"\nDry run: Would replace path separators in line:")

                    print(f"Original: {original_line.strip()}")

                    print(f"Modified: {line.strip()}")

​

                    modified = True

​

                # Replace 'templates/landing/%current_folder%' with 'page_template_dynamic/landing/%current_folder%'

                line, count = templates_landing_pattern.subn(r'page_template_dynamic/landing/\1', line)

                if count > 0:

                    if not replace:

                        print(f"\nDry run: Would replace 'templates/landing/{{current_folder}}' with 'page_template_dynamic/landing/{{current_folder}}' in line:")

                        print(f"Original: {original_line.strip()}")

                        print(f"Modified: {line.strip()}")

                    modified = True

​

                # Replace '{{ form_enctype(form) }}' with '{{ form_start(form, { 'enctype': 'multipart/form-data' }) }}'

                line, count = form_enctype_pattern.subn(r"", line)

                if count > 0:

                    if not replace:

                        print(f"\nDry run: Would replace 'form_enctype' with 'form_start' (with enctype) in line:")

                        print(f"Original: {original_line.strip()}")

                        print(f"Modified: {line.strip()}")

                    modified = True

​

                new_lines.append(line)

​

            if replace and modified:

                # Write changes back to the file if the replace flag is set

                file.seek(0)

                file.writelines(new_lines)

                file.truncate()  # Ensure file size is adjusted if new content is shorter

                print(f"\nChanges written to {file_path}")

​

    except Exception as e:

        print(f"\nError processing file {file_path}: {str(e)}")

​

def main():

    args = parse_arguments()

​

    for root, dirs, files in os.walk("."):

        for dir in dirs:

            if dir in target_directories:

                print(f"\nFound {dir} in {root}")

                for subdir, subdirs, subfiles in os.walk(os.path.join(root, dir)):

                    for file in subfiles:

                        if file.endswith('.twig'):

                            file_path = os.path.join(subdir, file)

                            scan_file(file_path, replace=args.replace)

​

    if not args.replace:

        print(f"\nRun command with --replace to apply changes.")

​

if __name__ == "__main__":

    main()