Cache the packages php-builder installs, and restore PHP 8.5 #181

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thatguygriff merged 4 commits from ci/cache-php-builder-deps into main 2026-08-20 19:18:46 +00:00

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4 Commits

Author	SHA1	Message	Date
thatguygriffandClaude Opus 5	37c8d2b39e	Put PHP 8.5 back in the matrix ... I misread the instruction to hold 8.5 as "take it out until the cache lands" and removed it in f6481d4, so #179 merged without it. It was meant to stay where it was. Restoring it. 8.5 takes the same php-builder path as 8.3, so the apt cache in this branch is exactly what it needs, and the per-version key means it caches its own ~70 -dev packages rather than sharing with the ondrej-path jobs. composer test passes on 8.5.9 locally: 915 tests, 2592 assertions. Refs #178. Co-Authored-By: Claude Opus 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Uw545F1vveNJKjzLxdi2ks	2026-08-20 16:04:52 -03:00
thatguygriffandClaude Opus 5	a90e06ae70	Key the apt cache per PHP version and drop the instrumentation ... Run 536 proved the cache works -- ACTIONS_CACHE_URL is now populated, no GHES warning, "Cache saved with key: apt-php-builder-deps-ARM64-v1" -- and in doing so showed the key was wrong. The jobs that saved it were 8.1 and 8.2. They take the ondrej PPA path, a handful of runtime packages, while 8.3 takes php-builder and its ~70 -dev packages. One shared key therefore lets whichever job finishes first decide what every other job restores, and 8.1 is always first, at ~30s against 8.3's several minutes. 8.3 would have restored a few runtime .debs it has no use for and then downloaded all 70 anyway. My "the dep list is the same for every PHP version" comment was true only among the builder versions. Keyed per version now, so each path caches what it actually installs. That also picks up a small win on 8.1 and 8.2 rather than only avoiding harm. Both temporary steps are gone. Report restored .debs was there to show the cache URL arriving and the restore landing; both are established, so it goes. Keep downloaded .debs stays -- it is not instrumentation, it disables Ubuntu's docker-clean, without which there are no .debs left to cache. Refs #178. Co-Authored-By: Claude Opus 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Uw545F1vveNJKjzLxdi2ks	2026-08-20 15:57:27 -03:00
thatguygriffandClaude Opus 5	d5f6ebf0b5	Move actions/cache to v4 and probe the cache URL ... thatguygriff/infra#1 turned the runner cache server on, so actions/cache has an endpoint for the first time. v4 rather than v3 because v4.2+ can speak the cache service v2 API, which is what the runner serves. The instrumentation step now also prints ACTIONS_CACHE_URL, so a single run shows the endpoint arriving and the cache being read in one log rather than needing a separate probe. Refs #178. Co-Authored-By: Claude Opus 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Uw545F1vveNJKjzLxdi2ks	2026-08-20 15:56:37 -03:00
thatguygriffandClaude Opus 5	4b4b2453ae	Cache the .debs php-builder installs, to measure whether it helps ... Experiment for #178. On self-hosted runners setup-php installs PHP 8.3+ through php-builder, whose install.sh apt-installs ~70 -dev packages before unpacking the build. The build tarball itself is only 19MB, so that apt work is the whole cost, not the download. Ubuntu's image drops the .debs after install, so every job fetches them from the archive again. This keeps them and restores them through the cache server, which lives in the cluster, so a WAN download becomes a local one. The dependency list does not vary by PHP version, so a single key serves 8.3 and 8.5 and the quality and build jobs alike. Only the .debs are cached. /var/lib/apt/lists is deliberately left alone, since a stale index is how apt starts 404ing mid-install, and reducing flakiness is the entire point. The Report restored .debs step is temporary instrumentation to show whether the cache is actually being read. Baseline to beat, from run 526: 8.1 30s, 8.2 53s, 8.3 454s, quality 151s, 8.5 733s and a hard failure. Co-Authored-By: Claude Opus 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Uw545F1vveNJKjzLxdi2ks	2026-08-20 15:56:37 -03:00