Tagify Obsidian for use in Blot

tagify.py

#!/usr/bin/env python3

import frontmatter
import os, sys
from glob import glob
import re
from io import BytesIO
import uuid

if len(sys.argv) < 2:
    print ("Usage: {} <directory>".format(sys.argv[0]))
    exit()
    
dir = sys.argv[1]

result = [y for x in os.walk(dir) for y in glob(os.path.join(x[0], '*.md'))]

# Hardcoded for now. You should probably change this to your needs, 
# drafts/ is always a bad idea, but _templates/ is the directory I 
# save my Obsidian templates in, which should not be parsed, either.

result = [x for x in result if not ('_templates' in x or 'drafts/' in x)]

for mdfile in result:
    with open(mdfile, "r") as f: 
        meta_tags = list()
        post = frontmatter.load(f)
        print (mdfile)
        if 'Tags' in post.keys() and post["Tags"]:
            meta_tags = [x.strip() for x in post["Tags"].split(',')]
            meta_tags = [each_tag.lower() for each_tag in meta_tags]
        text_tags = re.findall(r" #(\w+)", post.content)
        text_tags = [each_tag.lower() for each_tag in text_tags]
        meta_tags.extend(x for x in text_tags if x not in meta_tags)
        post["Tags"] = ", ".join(meta_tags)

        # make a UUID. Might not be completely unique (thanks to slicing) but good enough
        # if it duplicates, I'll know.
        if not 'UUID' in post.keys():
            post['UUID'] = uuid.uuid4().hex[:5]
            ## post['Tags'] = post["Tags"] + ", {}".format(post['UUID'])
            ## let's not clutter the tags
        f.close()
        with open(mdfile, "w") as f:
            fc = BytesIO()
            frontmatter.dump(post, fc)
            fx = fc.getvalue().decode('utf-8')
            f.write(fx)
            f.close()