55 lines
2 KiB
Python
55 lines
2 KiB
Python
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#!/usr/bin/python
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import argparse
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import logging
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import os
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import re
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import sys
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#declaration_match = re.compile(r'^entity (?P<entity_name>.*?) is$.*?^end (?:(?P=entity_name)|entity);$', re.MULTILINE | re.DOTALL)
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declaration_match = re.compile(r'^entity (?P<entity_name>.*?) is$.*?^end (?P=entity_name);$', re.MULTILINE | re.DOTALL)
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def directory_path(string):
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if os.path.isdir(string):
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return string
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else:
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raise NotADirectoryError(string)
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def get_parser():
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parser = argparse.ArgumentParser()
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parser.add_argument('-d', '--dest-dir', help='The destination directory to store the entity headers in', type=directory_path)
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parser.add_argument('source_files', nargs='*', type=argparse.FileType('r'))
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parser.add_argument('--pattern', default='{entity_name}_entity.vhd', help='The pattern to use for the destination filename. Available substitutions: {entity_name}.')
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parser.add_argument('-s', '--skip-missing', action='store_true', help='Skip over files missing an entity declaration')
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parser.add_argument('-v', '--verbose', action='count')
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return parser
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def parse_header(src_file):
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if m := re.search(declaration_match, src_file.read()):
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return (m.group('entity_name'), m.group(0))
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else:
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return None
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if __name__ == '__main__':
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parser = get_parser()
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args = parser.parse_args()
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logging.basicConfig(level=args.verbose)
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for src_file in args.source_files:
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if res := parse_header(src_file):
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(entity_name, declaration) = res
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dest_file_path = os.path.join(args.dest_dir, args.pattern.format_map({'entity_name': entity_name}))
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logging.info(f'Writing header for {entity_name} to {dest_file_path}')
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with open(dest_file_path, 'w') as destfile:
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destfile.write(declaration)
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else:
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errmsg = f'No entity declaration found in {src_file.name}'
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if args.skip_missing:
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logging.warning(errmsg)
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else:
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logging.error(errmsg)
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sys.exit(1)
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