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103 lines
3.1 KiB
103 lines
3.1 KiB
#!/usr/bin/env python3
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"""add module description
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"""
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import argparse
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import re
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__author__ = "Michał Słomkowski"
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__license__ = "Apache 2.0"
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INDENTATION = ' ' * 4
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def strip_line(single_line):
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"""Strips the line and replaces neighbouring whitespaces with single space (except when within quotation marks)."""
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within_quotes = False
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parts = []
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for part in re.split('"', single_line.strip()):
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if within_quotes:
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parts.append(part)
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else:
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parts.append(re.sub(r'[\s]+', ' ', part))
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within_quotes = not within_quotes
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return '"'.join(parts)
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def clean_lines(orig_lines):
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"""Strips the lines and splits them if they contain curly brackets."""
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cleaned_lines = []
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for line in orig_lines:
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line = strip_line(line)
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if line == "":
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cleaned_lines.append("")
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continue
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else:
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cleaned_lines.extend([l.strip() for l in re.split("([\\{\\}])", line) if l != ""])
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return cleaned_lines
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def join_opening_bracket(lines):
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"""When opening curly bracket is in it's own line (K&R convention), it's joined with precluding line (Java)."""
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modified_lines = []
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for i in range(len(lines)):
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if i > 0 and lines[i] == "{":
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modified_lines[-1] += " {"
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else:
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modified_lines.append(lines[i])
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return modified_lines
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def perform_indentation(lines):
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"""Indents the lines according to their nesting level determined by curly brackets."""
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indented_lines = []
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current_indent = 0
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for line in lines:
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if line.endswith('}') and current_indent > 0:
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current_indent -= 1
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indented_lines.append(current_indent * INDENTATION + line)
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if line.endswith('{'):
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current_indent += 1
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return indented_lines
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def format_config_file(contents):
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"""Accepts the string containing nginx configuration and returns formatted one. Adds newline at the end."""
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lines = clean_lines(contents.splitlines())
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lines = join_opening_bracket(lines)
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lines = perform_indentation(lines)
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return '\n'.join(lines) + '\n'
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if __name__ == "__main__":
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argparser = argparse.ArgumentParser(description=__doc__)
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argparser.add_argument("-v", "--verbose", action="store_true", help="show formatted file names")
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argparser.add_argument("-b", "--backup-original", action="store_true", help="backup original config file")
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argparser.add_argument("config_file", type=argparse.FileType('r'), nargs='+')
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args = argparser.parse_args()
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for config_file in args.config_file:
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original_file_content = config_file.read()
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config_file.close()
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with open(config_file.name, 'w') as fp:
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fp.write(format_config_file(original_file_content))
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if args.verbose:
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print("Formatted file %s" % config_file.name)
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if args.backup_original:
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backup_file_path = config_file.name + '~'
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with open(backup_file_path, 'w') as fp:
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fp.write(original_file_content)
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if args.verbose:
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print("Original saved to %s" % backup_file_path)
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