name: ci

# The stock FlashForge firmware is proprietary and ~93MB, so it is never in
# the repo. The `test` job therefore runs only what needs no firmware at all:
# qa/static and the host-side pytest tree. That is enough for the static and
# packaging checks, but NOT enough to prove a package will not brick a
# printer.
#
# That proof needs the printer's real rootfs, and so it needs the stock
# package. `printer-sim` below now always runs, because the packages it needs
# are publicly mirrored and pinned in versions.env rather than hidden behind a
# secret nobody had set. It used to be gated on STOCK_URL_CREATOR5PRO, which meant
# that for its entire existence it never ran once: a grey dash beside two
# green ticks, reading as "CI passed" while the only gates that decide
# whether a package bricks a printer were never executed.
on:
  push:
    branches: [ main, master ]
  pull_request:
  workflow_dispatch:

# The stock packages are no longer fetched here. They are pinned by name and
# sha256 in versions.env like every other third-party source, and
# bin/fetch-assets.sh downloads them into vendor/ -- so `make vendor` below
# gets them the same way a person's checkout does, and this workflow no longer
# carries a second spelling of "fetch the firmware, check the hash" that could
# drift from the one humans run.
#
# The secrets that used to override the URLs (STOCK_URL_CREATOR5PRO and
# friends, for a fork testing its own firmware) are gone with them. A fork
# re-pins versions.env instead, which works locally too -- the secrets only
# ever worked in CI, and the local build had no equivalent at all.
#
# The factory image used to be fetched here too, for PROG_DUMP. Both are gone:
# the replica is PRINTER_IMAGE and nothing else, and that image carries the
# real /usr/prog already. PRINTER_IMAGE is pinned to a version tag for the
# same reason the sha256s are -- it is now the whole substrate the
# brick-safety gates run on, so it must not move on its own.

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      # gcc/pkg-config/perl/zlib1g-dev/patch/make are for the SAME reason
      # docker/Dockerfile.build carries them: cross-building CPython 3.13
      # needs a HOST build-python of its own to freeze modules and
      # byte-compile the stdlib, and that one needs a host C compiler,
      # pkg-config (CPython's configure probes libffi through it), perl
      # (OpenSSL's Configure is a perl program), zlib1g-dev (the build-python
      # needs a working zlib module or ensurepip cannot even unpack pip's
      # bundled wheel) and patch (lmdb's setup.py shells out to
      # /usr/bin/patch by absolute path). See that file's own comment for the
      # long version.
      - name: Install build dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends \
            openssl xz-utils unzip binutils file squashfs-tools \
            python3-pytest python3-jinja2 python3-pyflakes \
            gcc pkg-config perl zlib1g-dev patch make

      # The shell parse and the bashism pass live in qa/static/test_shell_syntax.py
      # now; this step is the repo-wide shellcheck, which is a wider net.
      - name: shellcheck
        run: |
          set -euo pipefail
          sudo apt-get install -y shellcheck

          # FOUND, NOT GLOBBED, and the count is asserted. The list here used
          # to be four literal globs, two of which stopped matching anything:
          # pkgs/*/payload/init.d/S* went when s6-rc replaced the init
          # scripts, and pkgs/*/prog/ moved under payload/. shellcheck exits 2
          # on a path it cannot open, so this step failed on every run -- and
          # had it not, the opposite failure was worse: a glob that quietly
          # matches nothing checks nothing and still reports green.
          mapfile -t PRINTER_SH < <(
            find pkgs -path '*/payload/*' \
                 \( -name '*.sh' -o -name firmwareExe \) | sort)
          PRINTER_SH+=(installer/runFirmwareExe.sh)
          if [ "${#PRINTER_SH[@]}" -lt 5 ]; then
            echo "::error title=Nothing to check::found ${#PRINTER_SH[@]} on-printer scripts; the find pattern is stale."
            exit 1
          fi
          printf 'checking: %s\n' "${PRINTER_SH[@]}"

          # Errors are a gate. These used to end in `|| true`, which meant
          # shellcheck could report anything it liked and the job stayed green.
          # payload scripts run under busybox ash on the printer.
          shellcheck -s sh   -S error "${PRINTER_SH[@]}"
          shellcheck -s bash -S error bin/*.sh tools/replica/*.sh
          # Warnings are advisory: printed, not enforced.
          shellcheck -s sh -S warning "${PRINTER_SH[@]}" || true

      # s6 and CPython 3.13 have no BUILD_ flag -- every package ships them
      # (see bin/fetch-assets.sh) -- so this job builds them for real rather
      # than stubbing around them the way it stubs Mainsail, HelixScreen and
      # the Klipper fork. Cached on versions.env: an unchanged pin never
      # re-fetches the ~203MB Ingenic toolchain and never recompiles either
      # tree. Both are recipes under work/pkg now -- four for s6, nineteen for
      # CPython and its site-packages -- and every one carries pkg_stamp's key.
      #
      # work/pkg is every recipe under pkgs/ at once -- one cache entry instead
      # of one per package, because pkgs/lib.sh derives the output directory
      # from the recipe name rather than naming each one in bin/common.sh. A
      # new recipe therefore needs no edit here, which is the same property
      # that makes adding a package one directory. work/packages is the feed
      # built out of those trees, cached beside them for the same reason.
      - name: Cache the s6 + CPython 3.13 build inputs and outputs
        uses: actions/cache@v4
        with:
          path: |
            vendor
            work/pkg
            work/packages
          key: fixture-py-${{ hashFiles('versions.env') }}

      - name: Fetch the s6 + CPython 3.13 build inputs
        run: |
          set -euo pipefail
          # This config.env exists purely to let fetch-assets.sh see a
          # config at all; it skips Mainsail and HelixScreen (still gated on
          # their own BUILD_ flags, unset here) and fetches what s6, CPython
          # and the Klipper fork need, none of which has a BUILD_ flag of its
          # own any more -- BUILD_KLIPPER is gone and the fork is the only
          # Klipper, so its 27MB tarball comes down here with the rest. This
          # config.env is KEPT rather than removed: the packaging step below
          # reads it too, and unlike payload.sh, bin/build-packages.sh needs no
          # stock package -- which is the whole reason the feed can be built
          # in this job at all.
          #
          # s6 and CPython are not cross-built by payload.sh any more; there are
          # no sections 5b/5c. They are recipes under pkgs/, built by
          # build-packages.sh like every other one.
          cat > config.env <<'CFG'
          BUILD_MAINSAIL=0
          BUILD_HELIX=0
          BUILD_MOONRAKER=0
          CFG
          ./bin/fetch-assets.sh

      # BEFORE the static lane, because a good part of what that lane asks is
      # about .ipk files, and those questions do not fail on a checkout with
      # no feed -- they return, quietly, and the lane reports a pass having
      # never opened a package. Building the feed here is what makes that
      # answer mean something, and it needs no stock firmware to do it.
      - name: Build the package feed
        run: ./bin/build-packages.sh

      # The qa suite's static lane: parses, bashisms, names, recipe layout,
      # and -- now that the feed above exists -- what is inside the .ipk files.
      #
      # No strictness flag: a missing shellcheck or pyflakes fails on its own,
      # because there is no configuration in which running this lane without
      # them is a complete run. Only the static lane here -- this job has no
      # stock firmware on purpose, and printer-sim below is where the replica
      # is proved.
      - name: qa -- static lane
        run: python3 -m pytest ./qa/static -q

  # The real check: install the package into a replica of the printer -- the
  # actual rootfs.squashfs under qemu-mipsel, on the printer's own busybox --
  # and assert the machine still boots. No `if:` guard: this job is the point
  # of the repo, and a version of it that can quietly not run is worse than
  # not having it.
  printer-sim:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Write test.env (the replica)
        env:
          # THE replica. It carries the printer's rootfs, its real /usr/prog
          # and /usr/data, and the stock package already installed on top of
          # them -- about a minute of setup saved on EVERY replica case, which
          # over a full suite is the difference between this job and a coffee
          # break. vars.PRINTER_IMAGE overrides it for a fork building its own.
          #
          # A VERSION TAG, NOT :latest. This image is now the entire substrate
          # the brick-safety gates run on -- there is no local fallback left
          # to build one from a stock package -- so a floating tag would let
          # it change under a green suite. That is precisely the drift the
          # sha256 pins above exist to prevent, and it would be worse here,
          # because nothing in the run would even record what was tested.
          PRINTER_IMAGE: ${{ vars.PRINTER_IMAGE || 'monstrofil/creator5-printer:1.9.7-1.2.9-20260810' }}
        run: |
          set -euo pipefail
          if [ -z "${PRINTER_IMAGE:-}" ]; then
            echo "::error title=No replica::PRINTER_IMAGE is empty and there is no other way to get a replica."
            exit 1
          fi
          echo "PRINTER_IMAGE=\"$PRINTER_IMAGE\"" > test.env
          cat test.env

      - name: Write config.env
        run: |
          cat > config.env <<'CFG'
          MOD_NAME=anvil
          MOD_VER=ci
          TARGET_MACHINE=Creator5Pro
          # No stock paths: bin/common.sh defaults them into vendor/, where
          # `make vendor` puts the pinned download. Setting them here would be
          # the override that suppresses the checksum.
          STOCK_TGZ=""
          # No Klipper source knob any more: pkgs/klipper builds from the
          # commit pinned in versions.env and nothing else. The variable that
          # used to live here, KLIPPER_FORK, is what let v20260824 ship the
          # stock klippy tree by being set to "" in this very file.
          ROOT_PW_HASH='$6$ci$abcdefghijklmnopqrstuvwxyz'
          FF_KEY='FFP0331&*%root'
          CFG

      # The replica gates run ./bin/payload.sh, which needs the real Mainsail
      # zip and HelixScreen tarball in vendor/ -- payload.sh does not fetch them
      # itself, bin/build.sh does, and the gates do not go through build.sh.
      # Nothing here noticed until this job ran for the first time, because
      # every local run already had a populated vendor/. All are public,
      # sha256-pinned in versions.env, and re-download only on a version bump.
      #
      # Cached because the set now includes the Klipper fork and the ~203MB
      # MIPS toolchain that compiles its chelper -- this job runs on every
      # push, and the toolchain host should not pay for that.
      - name: Cache the pinned vendor assets
        uses: actions/cache@v4
        with:
          path: vendor
          key: vendor-${{ hashFiles('versions.env') }}

      # `make vendor` is --all --stock, which now also brings down both models'
      # stock firmware (~186MB) -- this job builds Creator5Pro but the qa lane
      # reads both baselines. Same cache, keyed on versions.env, so the pins and
      # the firmware they name move together and an unchanged pin costs nothing.
      # The `test` job above calls bin/fetch-assets.sh bare and so still gets
      # no firmware at all, which is what keeps its feed build honest.
      - name: Fetch the pinned vendor assets and the stock firmware
        run: make vendor ASSET_ROOT=$PWD

      # THE FEED, and it is not optional on the release path. bin/payload.sh
      # builds the payload by INSTALLING the feed, so it refuses to start
      # without one, and the python recipes resolve PKG_BUILD_DEPENDS out of
      # work/packages. These two steps ran as one unpack/patch/pack with no
      # feed for a while, which could not have passed.
      #
      # Unlike the build below, this needs no stock firmware -- which is most
      # of the point: packaging has to be runnable on a bare checkout, or the
      # gate only runs where the proprietary package is.
      - name: Build the package feed
        run: make packages ASSET_ROOT=$PWD

      # BUILD THE PACKAGE THE SUITE INSTALLS. The qa replica lane installs for
      # real -- the printer's own app_startup.sh, off a FAT stick -- so it
      # needs a package in work/out, and it never builds one on demand: that
      # would turn "the suite is slow today" into a mystery.
      #
      # It also supplies the cross-built s6 and CPython, because both ship
      # INSIDE the package; there is no separate build tree to track.
      #
      # Through `make`, not around it. `make build` runs bin/build.sh on the
      # RUNBUILD lane -- as the runner user, with the docker socket and the
      # socket's own gid -- because bin/payload.sh assembles the payload inside
      # the replica. Hand-rolling the `docker run` here meant CI exercised an
      # entry point no human uses, so a mistake in one of the Makefile's own
      # runners could never turn this job red.
      - name: Build the package
        run: make build ASSET_ROOT=$PWD

      # The brick-safety gate. No ALLOW_SKIP and no REQUIRE_PRINTER_SIM: qa has
      # no skip mode at all, so a missing docker, daemon, image or package
      # fails at the point that needs it rather than being reported as a gap
      # somebody has to remember to accept.
      #
      # The replica starts sibling containers through the docker socket and
      # needs loop devices for the simulated USB stick; both work on a stock
      # ubuntu-latest runner.
      - name: qa suite on the printer replica
        run: make qa ASSET_ROOT=$PWD

  # The docs make claims about a machine that can be left unbootable, and the
  # pages cross-link each other and the payload sources heavily -- 30+ links
  # between README.md, docs/*.md and docs/notes/. This is the cheap half of
  # keeping them true: --strict fails on a link whose target has moved or been
  # deleted, so a rename in payload/ cannot quietly leave a doc pointing at
  # nothing. It cannot check that the prose is still right; only a reader can.
  #
  # Read the Docs builds the same mkdocs.yml with fail_on_warning, so this job
  # going red is also the warning that the published site is about to fail.
  docs:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"          # what .readthedocs.yaml builds with

      - name: Install the docs toolchain
        run: pip install -r docs/requirements.txt

      - name: Build the site
        run: mkdocs build --strict