Computing the distro list no longer justifies a runner of its own: it is
two steps, and the job that consumes them already checks the repository
out. The workflow now occupies one runner instead of seven.
The step also went silent for minutes at a time, printing five pids and
then nothing until every build had finished. Each build's output is piped
through a [distro][HH:MM:SS] stamp as it arrives, so the log shows what is
happening while it happens; tee still files the per-distro logs for the
artifact, and the replay block at the end is gone as duplication.
A pipeline hands $! the pid of tee rather than of the build, which would
have swallowed every failure, so each build runs in a subshell under
pipefail and wait reads that.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The matrix spent five runners on work that is almost entirely network
wait: the collection install measured 0% CPU for its whole duration, and
the parent-image pull, the package managers and the push are no
different. One runner carries all five concurrently and frees the other
four.
Losing the matrix loses fail-fast: false with it, so push_all.sh awaits
every build and reports each one by name before exiting non-zero. A
broken distro no longer hides the other four, which is what made today's
triage find three causes instead of one.
Starts are spread by fibonacci seconds because each build opens with a
parent-image pull of several hundred MB. Per-distro logs are grouped in
the job output and uploaded as an artifact, and the pressure report now
carries free -h: memory is the one resource this consolidation contends
for, and an OOM kill would otherwise read as a build error.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5