exportdendron.py

#!/usr/bin/env python3
import argparse
from glob import glob
from os.path import expanduser
import re

parser = argparse.ArgumentParser()
parser.add_argument('pattern', metavar='PATTERN',
                    help='part of filename to match')
parser.add_argument('--dir', default='~/.dendron/vault', help='vault location')
parser.add_argument('-o', '--output', help='output markdown filename')
args = parser.parse_args()

vault_dir = expanduser(args.dir)
filenames = glob(vault_dir + f'/*{args.pattern}*.md')
filenames = [f + '.md' for f in sorted([s[:-3] for s in filenames])]
output = args.output if args.output is not None else args.pattern + '.md'

title_pattern = re.compile(
    r"""---\n[a-z:\d\s]+title: ([A-Za-zĄĆĘŁŃÓŚŹŻąćęłńóśźż"" ()]+)\n[a-z:\d\s"']+\n---""")

with open(output, 'w', encoding='utf-8') as out_file:
    for filename in filenames:
        with open(filename, 'r', encoding='utf-8') as file:
            content = file.read()
            replaced = title_pattern.sub(r'# \1', content)
            out_file.write(replaced)
            out_file.write('\n')