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qbz/.github/workflows/build-slint-selfhosted.yml
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name: Build Slint (self-hosted)
# Builds qbz-slint on the self-hosted runner registered on the dev box
# (`qbz-box`, labels: self-hosted,linux,x64,qbz-builder). The box CAN compile
# qbz-slint (proven locally), so this is the reliable path to a real CI/CD
# artifact while the GitHub-hosted private runner (2 vCPU / 8 GB) cannot.
#
# Self-hosted runners keep their work directory between runs, so `target/`
# persists → builds are INCREMENTAL after the first (no `actions/cache` needed).
#
# MANUAL trigger only (workflow_dispatch): the box shares RAM with the desktop
# and earlyoom will SIGTERM the build if RAM runs low. Trigger this when the box
# is free (close heavy apps / TTY), and do NOT run a local build at the same
# time (one heavy build at a time — the box hard-freezes on double-build OOM).
on:
workflow_dispatch:
concurrency:
group: selfhosted-slint
cancel-in-progress: true
jobs:
build:
runs-on: [self-hosted, qbz-builder]
timeout-minutes: 180
steps:
- uses: actions/checkout@v7
- name: Free RAM check (earlyoom will kill the build if too low)
run: |
free -h | head -2
avail=$(free -m | awk '/^Mem:/ {print $7}')
echo "MemAvailable: ${avail} MB"
if [ "${avail}" -lt 16000 ]; then
echo "::warning::Only ${avail} MB free — earlyoom may SIGTERM the qbz-slint rustc. Close apps / drop to TTY for headroom."
fi
# Desktop-proof recipe, root-caused 2026-07-04 (ftrace): earlyoom's
# RAM-only trigger SIGTERM'd rustc whenever global MemAvailable dipped
# to ~3 GB — the cap margin, not the settings, was the bug. With
# slint-run.sh anchoring memory.high at avail-9G, this exact recipe
# (threads=2, cgu=256, opt=3, capped) completed with a 5.7 GB global
# floor and zero signals while the desktop ran. Same flags as the
# distribution profile → the runner cache stays warm between runs.
- name: Build qbz-slint (desktop-proof — capped, threads=2, opt-3)
run: NORUN=1 CAPPED=1 THREADS=2 CODEGEN_UNITS=256 OPT=3 ./scripts/slint-run.sh
- name: Strip + report size
run: |
BIN=crates/target/release/qbz
echo "unstripped:"; ls -lh "$BIN" | awk '{print $5}'
cp "$BIN" qbz-linux-x86_64
strip qbz-linux-x86_64 || true
echo "stripped:"; ls -lh qbz-linux-x86_64 | awk '{print $5}'
- uses: actions/upload-artifact@v7
with:
name: qbz-linux-x86_64
path: qbz-linux-x86_64
if-no-files-found: error