80 lines
2.2 KiB
Plaintext
Executable File
80 lines
2.2 KiB
Plaintext
Executable File
#!/usr/bin/env nix-shell
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#!nix-shell -i python3 -p "python3.withPackages (ps: [ gnome-feeds.listparser ])" -p gpodder
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from dataclasses import dataclass, field
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import listparser
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import subprocess
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import sys
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@dataclass(repr=True)
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class Feed:
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url: str
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title: str # Optional
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def __init__(self, url: str, title: str):
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self.url = url
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self.title = title if title else None
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def __eq__(self, other: 'Feed') -> bool:
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return self.url == other.url and \
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(self.title == other.title or None in [self.title, other.title])
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@dataclass(init=True)
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class Partitioned:
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has_not_wanted: list[Feed] = field(default_factory=list)
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wanted_not_has: list[Feed] = field(default_factory=list)
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intersection: list[Feed] = field(default_factory=list)
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def wanted_feeds(opml_file: str):
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parsed = listparser.parse(open(opml_file).read())
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return [Feed(url=p['url'], title=p['title']) for p in parsed.feeds]
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def has_feeds():
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listing = subprocess.check_output(["gpo", "list"]).decode()
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feeds = []
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title = None
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for line in listing.split("\n"):
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if line.startswith("# "): # title
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title = line[2:].strip()
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elif line.startswith("http"): # feed URL:
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feeds.append(Feed(url=line, title=title))
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title = None
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return feeds
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def partition_feeds(wanted: list[Feed], has: list[Feed]) -> Partitioned:
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p = Partitioned()
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for f in wanted + has:
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w, h = f in wanted, f in has
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if h and not w:
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p.has_not_wanted.append(f)
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elif w and not h:
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p.wanted_not_has.append(f)
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else:
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assert w and h
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p.intersection.append(f)
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return p
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def remove_feed(feed: Feed):
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subprocess.check_output(['gpo', 'unsubscribe', feed.url])
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def rationalize_feeds(opml_file: str):
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wanted = wanted_feeds(opml_file)
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has = has_feeds()
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partitioned = partition_feeds(wanted, has)
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print("extra feeds:", "" if partitioned.has_not_wanted else "(none)")
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for f in partitioned.has_not_wanted:
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print(" ", f)
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print()
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for f in partitioned.has_not_wanted:
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remove_feed(f)
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if __name__ == "__main__":
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wanted_opml, = sys.argv[1:]
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rationalize_feeds(wanted_opml)
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