chore: add script to update maddy version numbers

Additionaly some cleanup in python code regarding quotes

tools/update_version.py

@@ -0,0 +1,89 @@
+#!/bin/python
+#
+# maddy update version
+#
+# Replaces the version in all files in the lines containing
+# `MADDY_VERSION_LINE_REPLACEMENT`.
+#
+# This project is licensed under the MIT license. For more information see the
+# LICENSE file.
+
+import mimetypes
+import os
+import re
+from semver import Version
+import sys
+
+def update_version_in_file(version, file_path):
+  """
+  Updates the version in the specified file.
+
+  Args:
+      file_path (str): The path to the file where the version needs to be updated.
+      version (str): The new version string to set in the file.
+  """
+  with open(file_path, 'r') as file:
+    content = file.read()
+
+  new_content = content
+  lines = new_content.splitlines()
+
+  for i, line in enumerate(lines):
+    if 'MADDY_VERSION_LINE_REPLACEMENT' in line:
+      lines[i] = re.sub(r'\b\d+\.\d+\.\d+\b', version, line)
+
+  new_content = '\n'.join(lines) + '\n'
+
+  if new_content != content:
+    print(f'Updating version in {file_path}')
+    with open(file_path, 'w', encoding='utf-8', newline='\n') as file:
+      file.write(new_content.replace('\r\n', '\n'))
+
+
+def update_version_in_files(version, directory, ignored_dirs):
+  """
+  Updates the version in all files in the specified directory.
+
+  Args:
+      directory (str): The path to the directory containing files.
+      ignored_dirs (list): A list of directories to ignore during the update.
+      version (str): The new version string to set in the files.
+  """
+  mimetypes.add_type('text/markdown', '.md')
+
+  ignroed_dirs_abs = [os.path.abspath(os.path.join(directory, d)) for d in ignored_dirs]
+
+  for root, dirs, files in os.walk(directory):
+    for file in files:
+      file_path = os.path.join(root, file)
+
+      if any(os.path.abspath(root).startswith(ignored_dir) for ignored_dir in ignroed_dirs_abs):
+        continue
+
+      if mimetypes.guess_type(file_path)[0] and mimetypes.guess_type(file_path)[0].startswith('text'):
+        update_version_in_file(version, file_path)
+
+
+def main():
+  if len(sys.argv) < 3:
+    print('Usage: python update_version.py <version> <directory> [ignored_dirs...]')
+    sys.exit(1)
+
+  version = sys.argv[1]
+  directory = sys.argv[2]
+  ignored_dirs = sys.argv[3:] if len(sys.argv) > 3 else []
+
+  if not os.path.isdir(directory):
+    print(f'Error: The specified directory "{directory}" does not exist.')
+    sys.exit(1)
+
+  if not Version.is_valid(version):
+    print(f'Error: The specified version "{version}" is not a valid semantic version.')
+    sys.exit(1)
+
+  update_version_in_files(version, directory, ignored_dirs)
+  print(f'Updated version to {version} in all files in {directory}')
+
+
+if __name__ == '__main__':
+    main()