ktyl.dev/scripts/mkblogindex.py

50 lines
1.4 KiB
Python

#!/usr/bin/env python3
import sys
import re
# we expect the arguments to be filepaths to each blog post
def print_usage():
print("\nusage: python mkblogindex.py POSTS\n")
print("\n")
print("\t\tPOSTS\tfilepaths of blog posts")
# check args for at least one file path
if len(sys.argv) < 2:
print_usage()
sys.exit(1)
# posts are arguments from index 1 onwards
posts = sys.argv[1:]
dir_pattern = re.compile("(.+)/(blog\/.+\.html)")
path_pattern = re.compile("(.+)\/(\d{4})\/(\d{1,2})\/(\d{1,2})\/(.+).html")
title_pattern = re.compile("<h1>(.+)</h1>")
# filter posts to just those with a date in them
posts = [p for p in posts if path_pattern.match(p)]
posts.reverse()
# for each file we want to output an <a> tag with a relative href to the site root
for path in posts:
m = re.match(path_pattern, path)
year = m.group(2)
month = m.group(3).rjust(2, '0')
day = m.group(4).rjust(2, '0')
date = f'<span class="post-date">{year}-{month}-{day}</span>'
title = ""
with open(path) as f:
for line in f:
if title_pattern.match(line):
title = re.sub(title_pattern, r'<span class="post-title">\1</span>', line).strip()
break
# clean leading directories to get the relative path we'll use for the link
url = re.sub(dir_pattern, r"\2", path)
print(f'<li><a href="{url}">{date}{title}</a></li>')