cry/cry/cli.py
John Doty eab6cf609d Remove the feedfinder import
We have our own version now. The only difference is it doesn't respect
robots. I think this might be OK?
2024-07-27 09:53:40 -07:00

266 lines
7.1 KiB
Python

# https://simonwillison.net/2023/Sep/30/cli-tools-python/
import asyncio
import logging
import click
from . import feed
from . import database
from . import opml
from . import web
LOG = logging.getLogger(__name__)
@click.group()
@click.version_option()
@click.option(
"-v",
"--verbose",
count=True,
help="Increase the verbosity of the output. This option can be specified multiple times.",
)
def cli(verbose):
"Command line feed reader"
if verbose > 1:
level = logging.DEBUG
elif verbose > 0:
level = logging.INFO
else:
level = logging.WARN
logging.basicConfig(level=level)
@cli.command(name="search")
@click.argument("url")
def search(url):
"Search an URL for feeds."
# TODO: Rewrite to use our new one
feeds = asyncio.run(feed.feed_search(url))
if len(feeds) == 0:
click.echo(f"No feeds found for {url}")
return 1
max_url = max(len(f.meta.url) for f in feeds)
max_title = max(len(f.title) for f in feeds)
for f in feeds:
click.echo(
f"{f.meta.url:{max_url}} {f.title:{max_title}} ({len(f.entries)} entries)"
)
click.echo(f"Found {len(feeds)} feeds")
@cli.command(name="subscribe")
@click.argument("url")
@click.option("--literal/--no-literal", "-l/-L", default=False)
def subscribe(url, literal):
"Subscribe to a feed at the specified URL."
db = database.Database.local()
if not literal:
click.echo(f"Searching for feeds for {url} ...")
feeds = asyncio.run(feed.feed_search(url))
if len(feeds) == 0:
click.echo(f"Unable to find a suitable feed for {url}")
return 1
if len(feeds) > 1:
# If we found more than one feed then we will try to see what the
# individual feeds are.
click.echo(f"Found {len(feeds)} feeds:")
max_title = max(len(f.title) for f in feeds)
max_url = max(len(f.meta.url) for f in feeds)
feeds.sort(key=lambda f: f.title)
for f in feeds:
click.echo(f"{f.title:{max_title}} {f.meta.url:{max_url}}")
click.echo(
"\nRun `subscribe` again with the URL of the feed you want to subscribe to."
)
return 1
result = feeds[0]
click.echo(f"Identified {result.meta.url} as a feed for {url}")
else:
click.echo(f"Fetching {url} ...")
meta = feed.FeedMeta.from_url(url)
d, meta = asyncio.run(feed.fetch_feed(meta))
if d is None:
click.echo(f"Unable to fetch {url}")
return 1
if isinstance(d, str):
click.echo(f"{url} does not seem to be a feed")
return 1
result = d
# Check to see if this URL is already in the database.
existing = db.load_meta(result.meta.url)
if existing is not None:
click.echo(f"This feed already exists (as {result.meta.url})")
return 1
db.store_feed(result)
click.echo(f"Subscribed to {result.meta.url}")
@cli.command(name="import")
@click.argument("opml_file", type=click.File("r", encoding="utf-8"))
def import_opml(opml_file):
"Import the specified OPML file."
db = database.Database.local()
urls = opml.parse_opml(opml_file.read())
metas = [feed.FeedMeta.from_url(url) for url in urls]
click.echo(f"Fetching {len(urls)} feeds ...")
results = asyncio.run(feed.fetch_many(metas))
subscribed = 0
for index, result in enumerate(results):
d, meta = result
url = urls[index]
if d is None:
LOG.warn(f"Unable to fetch {url}, skipping...")
continue
if isinstance(d, str):
click.echo(f"{url} does not seem to be a feed, skipping...")
continue
existing = db.load_meta(meta.url)
if existing is not None:
LOG.info(f"{url} already exists (as {meta.url})")
continue
db.store_feed(d)
subscribed = subscribed + 1
click.echo(f"Subscribed to {subscribed} new feeds")
@cli.command(name="refresh")
@click.argument("url", required=False, default=None)
def refresh(url):
"""Refresh one or more feeds.
If a URL is specified, refresh that URL. Otherwise, refresh all subscribed
feeds.
"""
db = database.Database.local()
if url:
f = db.load_meta(url)
if f is None:
click.echo(f"Not subscribed to {url}")
return 1
feeds = [f]
else:
feeds = db.load_all_meta()
click.echo(f"Refreshing {len(feeds)} feed(s)...")
results = asyncio.run(feed.fetch_many(feeds))
new_count = 0
for i, (d, meta) in enumerate(results):
if meta.url != feeds[i].url:
db.redirect_feed(feeds[i].url, meta.url)
if d is None:
# Nothing new.
db.update_meta(meta)
elif isinstance(d, str):
click.echo(f"WARNING: {meta.url} returned a non-feed result!")
else:
# New items, possibly!
new_count = new_count + db.store_feed(d)
click.echo(f"Fetched {new_count} new entries.")
@cli.command(name="show")
@click.argument("pattern", required=False, default="")
@click.option(
"--count",
"-c",
type=int,
default=10,
show_default=True,
help="Show at most this many entries from each feed.",
)
def show(pattern, count):
"""Show feeds and entries.
If a pattern is supplied, then filter the feeds to urls or titles that
match the pattern. Otherwise, just show everything.
"""
db = database.Database.local()
feeds = db.load_all(feed_limit=count, pattern=pattern or "")
feeds.sort(key=feed.sort_key, reverse=True)
for f in feeds:
click.echo(f"{f.title}")
if len(f.entries) > 0:
for entry in f.entries:
click.echo(f" {entry.title}")
else:
click.echo(f" <No Entries>")
click.echo()
@cli.command("list")
@click.argument("pattern", required=False, default="")
def list_feeds(pattern):
"""List subscribed feeds.
If a pattern is supplied, then filter the feeds to urls or titles that
match the pattern. Otherwise, just show everything.
"""
db = database.Database.local()
feeds = db.load_all(feed_limit=0, pattern=pattern)
if len(feeds) == 0:
click.echo("Not subscribed to any feeds.")
return 0
max_title = max(len(f.title) for f in feeds)
max_url = max(len(f.meta.url) for f in feeds)
feeds.sort(key=lambda f: f.title)
for f in feeds:
click.echo(f"{f.title:{max_title}} {f.meta.url:{max_url}}")
@cli.command("unsubscribe")
@click.argument("url")
def unsubscribe(url):
"""Unsubscribe from the specified feed.
(If you need to find the URL for the feed to unsubscribe from, use the
`list` command.)
"""
db = database.Database.local()
meta = db.load_meta(url)
if meta is None:
click.echo(f"Not subscribed to feed {url}")
return 1
db.update_feed_status(meta, feed.FEED_STATUS_UNSUBSCRIBED)
@cli.command("serve")
def serve():
web.serve()
@cli.command("sync")
def sync():
local_db = database.Database.local()
database.sync(local_db)