The code was formatted by hand, and `cargo fmt --check` differed in 866
places. rustfmt.toml keeps the house's long lines (120) and short
expressions on one line, which halves what changes; this commit is only
what rustfmt does with it, and is named in .git-blame-ignore-revs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
With apple_country set, the directory fetches Apple's top 100 podcasts and the top 50 of each of
its 19 categories for that country (itunes.apple.com/{cc}/rss/toppodcasts), looks up each
show's RSS address (/lookup, 100 ids a call, three seconds apart, as Apple asks for no more than
about twenty a minute), and stores them as the snapshot apple-podcasts with no subscribers. The
refresher fetches them like any feed; the most-subscribed chart is unchanged. Apple's primary
genre goes in as the snapshot's category, used only while a feed names none.
The same weekly run reads Apple's genre tree (ws/genres?id=26) and warns when it differs from
ipx_feed's CATEGORIES; on 2026-10-15 they were the same, all 19 and their subcategories.
A syncs table keeps when it last ran: at start if a week has passed, again weekly, an hour after
a failure. keep_instances spares apple-podcasts, which no token holds, and no token may take
the name. A trace a sync, a span each answer.
CLAUDE.md: builds one cargo command at a time, the load looked at before and after, after a
build chained with a test compile took Tower past 200.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ipx's resident memory climbed from about 40 MB to 500-850 MB each night while scans ran five
times as often, and stayed there until a restart; the directory sat at 1.25 GiB idle. glibc's
allocator keeps what each thread's arena freed. mimalloc gives freed pages back, so resident
memory now follows what is in use. jemalloc was the first choice for its in-use figures, but its
upstream was archived in 2025.
Declared once in the directory crate, which ipx builds in, so both binaries get it.
What was missing to see it: the directory served no /metrics (now on metrics_bind, a port apart
from the tunnel's), nothing counted the feed bytes fetched, and the fetch span had no body size.
The feed crate's spans never reached Tempo either: both trace exporters filtered to their own
crate, so ipx_feed's fetch and parse spans were dropped.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A new crate and service, crates/directory, live at ipx-dir.sdf1.net. ipx
servers send the public feeds their people subscribe to (POST /v1/snapshot,
replacing what that token sent before); the directory fetches each feed's
title, artwork, category, description and latest twenty items every six
hours with ipx-feed, and lists them A to Z and by subscribers summed over
every server. It holds metadata only, never a file or a file's address.
Tokens are in its config file as SHA-256 hashes, each ro, rw or rwa, and
the file is read again within a minute of a change, so adding and revoking
one is an edit and nothing else; a revoked token takes its server's counts.
At first they were to come from environment variables, which would have
meant recreating the container to add one. A file that does not load keeps
the tokens as they were.
Every address sent is checked with ipx_feed::url_looks_private, the check
ipx makes before sending, so one server's miss does not publish a paid feed
to every other; an rwa token can remove and block what both miss.
Deployed: ipx-directory in the ipx Arcane project, database ipx_directory
(its own login) on the databases project's Postgres, which db-backup
already covers, and a tunnel route with no Access in front. The store's
tests run on Postgres as well as SQLite when IPX_TEST_DATABASE_URL is set.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
