Script to update paths to new structure about guidebook

[grugnog]

This is extremely hacky and far from perfect, but got about 90% of the links updated (most of the others were due to incorrect input data, but there were a couple of edge cases I just fixed manually also). I started out using the newer pathlib library, but later realized that it doesn't generate relative links that aren't in each others paths (so can't do ../../a/b etc), so switched to os for that.

from pathlib import Path
import re
import yaml
import os
import pprint

with open(".config/redirects.yml") as config:
    redirects = yaml.safe_load(config)
lookup = {}
reverse = {}
for redirect in redirects:
    lookup[re.sub("/$", "", redirect['from_url']) + ".md"] = re.sub("/$", "", redirect['to_url']) + ".md"
    reverse[re.sub("/$", "", redirect['to_url']) + ".md"] = re.sub("/$", "", redirect['from_url']) + ".md"
print(reverse)

rootdir = Path('.')
for new in rootdir.glob('**/*.md'):
    if new.is_file() and not str(new).startswith('docs/'):
        orig = new
        if str(new) in reverse.keys():
            orig = Path(reverse[str(new)])
        print("orig: " + str(orig))
        print("new: " + str(new))
        orig_dir = orig.parent
        new_dir = new.parent
        with open(new) as file:
            data = file.read()
            links = re.finditer('\[[^\]]+\]\(([^)]+)\)', data)
            for link in links:
                url = link.group(1)
                if ":" not in url:
                    print("  url: " + url)
                    parts = re.search('([^#]*)(#.*|)', url)
                    if len(parts.group(1)) > 0:
                        print("  file: " + parts.group(1))
                        print("  anchor: " + parts.group(2))
                        resolved = Path(str(orig_dir) + '/' + url).resolve().relative_to(Path('.').resolve())
                        print("  resolved: " + str(resolved))
                        dest = resolved
                        if str(resolved) in lookup.keys():
                            dest = Path(lookup[str(resolved)])
                        dest = os.path.relpath(str(dest), str(new_dir))
                        print("  dest: " + dest)
                        final = str(dest) + parts.group(2)
                        data = data.replace(url, final)
        with open(new, "w") as file:
            file.write(data)

with open(".config/mkdocs.yml") as file:
    data = file.read()
    for redirect in redirects:
        data = data.replace(re.sub("/$", "", redirect['from_url']) + ".md", re.sub("/$", "", redirect['to_url']) + ".md")
with open(".config/mkdocs.yml", "w") as file:
    file.write(data)