testsAndMisc/docs
Krzysztof kuhy Rudnicki db9c8921a2
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kcd2 dice solver: lock deploy_build.sh so two runs cannot publish half a bundle
deploy_build.sh has two entry points — setup_kcd2_dice_solver.sh calls it
directly, and the post-commit hook starts a unit that runs it — and nothing
serialised them.

When they overlap, the second run's `vite build --emptyOutDir` truncates
dist.staging while the first run's rsync is still reading it. rsync exits 24,
`set -e` aborts before assert_mount_live, and dist/ is left holding a fresh
index.html that references assets which never arrived, with the previous
bundle's files already deleted by --delete-after.

Nothing downstream notices, which is what makes it worth fixing rather than
tolerating: `try_files {path} /index.html` answers the missing chunks with the
SPA HTML, so the browser is handed HTML where it expects JavaScript and no 404
reaches any log (verified against the live site: /assets/does-not-exist.js
returns 200 text/html). The hook's `|| true` then swallows the unit failure, so
the commit succeeds and the site is quietly broken.

Reproduced with a throttled rsync: rc=24, live left with index.html and two of
six chunks. With flock, two concurrent runs each publish a complete bundle.

Also tightened assert_mount_live, which announced success in three cases where
it had verified nothing: docker absent, container not running, and a failed
`docker exec` — the last because docker reports OCI runtime errors on stdout,
so `2>/dev/null` does not suppress them and the guard's non-empty test passed
on a 184-byte error string. It now requires an actual inode and says plainly
when the mount was not verified.

Found by the working-diff review these same changes had skipped.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-26 20:33:38 +02:00
..
cleanup-2026-05 chore: spring-clean repo root (move docs, relocate batch3 script, drop stale outputs) 2026-05-14 20:01:09 +02:00
explanations session_autopsy: badge counts only significant candidates; zero-token aliases 2026-07-25 18:05:49 +02:00
superpowers kcd2 dice solver: lock deploy_build.sh so two runs cannot publish half a bundle 2026-07-26 20:33:38 +02:00
mcp-shortlist.html docs: add MCP server security-triage shortlist 2026-07-17 19:16:31 +02:00