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Author SHA1 Message Date
0455db0027 ci: close the if that cost last night's release, and parse-check the rest (#122)
The Collect guard added to the publish job in #121 shipped without its
closing `fi`. Run 32096242353 -- the first nightly to reach the new
single publish job -- built all 107 devices, staged 219 assets, and then
died in `bash -e` with

    line 25: syntax error: unexpected end of file from `if' command on line 14

before writing anything. No nightly-20260818-* release exists, `nightly`
and `latest` still carry the 17th's images, and ci-gate went red. The
gate did its job; there was simply nothing left to publish by then.

Nothing caught it earlier because the publish job carries
`if: github.event_name != 'pull_request'` -- there are no artifacts to
publish on a PR, so the entire path is unreachable from PR CI by
construction. Both of #121's runs were green without ever executing the
step. #121 said as much ("none of this path can run on a pull request")
and checked the four states offline, but offline-checking the logic does
not check that the script parses, and that is what broke.

So the one-line fix, plus the check that would have caught it in seconds
without a runner: lint-workflow-shell.py parses every `run:` block in
.github/workflows/ with `bash -n`, and lint.yml runs it on PRs and on
master pushes that touch either.

Notes on the checker:

- ${{ }} is not shell, so each expression is replaced with a plain word
  first. That is a real limitation -- an expression interpolating shell
  syntax is checked as the word, not as what it expands to -- and the
  substitution preserves line counts so reported lines still point at
  the right line. --self-test asserts an unterminated `if` containing an
  expression is still rejected while the closed form passes, because the
  way this breaks is by making everything pass.

- Steps are found by walking for any mapping with a `run:` key rather
  than by the jobs.*.steps[*] path, so nothing depends on guessing where
  they live, and a discovery floor fails the run if the walk stops
  finding them. A checker that silently checks nothing looks exactly
  like a clean tree.

- Syntax only. It says nothing about quoting or `-e` semantics; a
  shellcheck pass wants per-block disables for the substitution above
  and is a separate change. actionlint would cover more and is worth
  considering later; keeping this narrow is what makes it noise-free now.

ci-matrix.py classifies both new files as no-build. They were names it
had never heard of, and unknown widens by design, so the first push
queued all 107 devices to prove a one-line YAML fix -- #121, which
touched only master.yml, ran 19. This PR still took the full matrix
because it edits ci-matrix.py itself, which always widens; the selector
is not trusted to pick a smaller matrix for its own changes.

PyYAML is installed explicitly rather than inherited from the runner
image, and the workflow declares `contents: read` rather than taking the
repo default. Both from review; neither would have failed the job today.

Verified: the checker flags the merged master.yml with the same message
the runner gave, passes the fixed tree, and all five guard states behave
as #121 intended -- normal night publishes, a broken download and a
green-but-empty dist both fail, and a dead matrix with nothing built
still exits clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-18 18:44:03 +03:00
edc0a0f88f ci: build pull requests, and only the devices they reach (#120)
* ci: build pull requests, and only the devices they reach

This repo had no pull_request trigger at all. A change landed unbuilt,
and the nightly found out the next morning -- or a user did. Turning PR
CI on meant 107 device builds per push, which is why it stayed off.

Almost every change here is one device: 639 of the file touches in the
last 200 commits sit under a single devices/<dir>/, and the median
commit reaches 2 devices. So narrowing first is what makes PR CI
affordable at all. .github/scripts/ci-matrix.py maps the paths a PR
touches to the devices that build them, and master.yml takes its matrix
from it.

The mapping is not written down, it is read off the tree the same way
builder.sh reads it. builder.sh line 121 locates a device by its
defconfig and copies that WHOLE devices/<dir>/ tree over the firmware
clone, so the devices a file affects are exactly the devices whose
defconfig shares its directory. That distinction is load-bearing:
devices/common/ backs 18 targets and devices/apfpv/ backs 2, and
treating a directory as one device would skip 17 real builds. A
defconfig still names one target even inside a shared directory.

THE NIGHTLY IS NOT NARROWED. builder.sh re-clones OpenIPC/firmware at
HEAD on every run, so what a nightly builds is decided mostly outside
this repo; master.yml already carries the scar of an earlier gate that
skipped on this repo's HEAD and left upstream fixes invisible to users.
Every event except pull_request gets the whole matrix, and --self-test
asserts that for schedule, workflow_dispatch and push.

Nothing on a pull_request may write a release. The three upload steps
were gated only on an image existing, so with a pull_request trigger
added they would have clobbered the published nightly and latest assets
that users flash. They and the Telegram post are now guarded on the
event.

master.yml and check-adjacent plumbing get a 15-device smoke set rather
than all 107: they decide how a build runs, not what it produces.
--self-test enforces the cover -- every vendor, architecture, toolchain
tuple and variant, plus both shared device directories -- rather than
the list, so the set can be re-picked while the property holds. It
already earned itself: the first run rejected my hand-picked set for
missing arm-openipc-linux-gnueabi, which exactly one target in the tree
has, and musleabihf.

Also adds the CI Gate umbrella check, since a dynamic matrix cannot be
named in branch protection and nothing reported a verdict before; and
freezes the 7 defconfigs that exist but are in no matrix, so a device
falling out of CI is a test failure rather than a silent skip.

Replaying the last 200 commits: 20330 device-builds if every PR built
everything, 5930 with the selector, 70.8% less, no coverage leaks. 43
of the 49 that still widen do so on paths that no longer exist
(devices/ssc338q_apfpv/ before it became devices/apfpv/, the old
top-level common/, a deleted builder-local.sh); restricted to commits
whose paths survive, it is 78.2%.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* ci: derive the device list instead of writing it down

Adding a camera IS the work in this repo: 8 of the 10 PRs open right now
add a device, and 14% of recent commits do. With the list written down
in ci-matrix.py, every one of those PRs also had to edit that file --
and a change to that file cannot narrow, because it is what does the
narrowing. So registering one camera cost a full 107-device build to
prove one device. The most common change got the worst outcome.

The matrix is now every defconfig under devices/, minus a NOT_BUILT
opt-out that keeps the 7 already in the tree but out of CI. Adding a
device is creating its directory, nothing else, and it builds exactly
that device.

This is the opposite call to OpenIPC/firmware's ci-matrix.py, on
purpose. There the matrix is curated -- 29 defconfigs are deliberately
never built and boards are not the product -- so an explicit list is the
honest description and an opt-out list would be noise. Here devices are
the product and the list is just "all of them".

The derived matrix is identical to the 107 master.yml carried: nothing
lost, nothing gained. --self-test now checks the opt-outs still name
real defconfigs, so a rename cannot leave a device silently building
under its new name while its old name sits in NOT_BUILT.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* ci-matrix: own $GITHUB_OUTPUT instead of being redirected into it

The docstring said the default mode writes $GITHUB_OUTPUT; it printed
key=value lines to stdout and left the workflow to redirect them there.
Raised in review on #120.

Fixing the prose would have made the file honest, but the redirect
itself is the weaker half. Under `>> ${GITHUB_OUTPUT}` every print() in
this file is one keystroke away from corrupting the step outputs, and a
crash between the first line and the last leaves a half-written file
that Actions still reads. That the diagnostics go to stderr is what
keeps it safe today -- a rule that has to hold forever, rather than a
property of the code.

So the script appends the three lines itself when $GITHUB_OUTPUT is set,
and prints them when it is not, so a local run still shows its decision.
--stdin never touches the file: it is the mode for reading with your
eyes. master.yml drops the redirect, though leaving one in place would
have been harmless -- with the file written directly, stdout is empty.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-17 07:05:30 +03:00