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Feature/stallguard autotune #6

	# Build the Glasscalibur firmware and, on a tag, attach the factory + OTA
	# binaries (and the .ota.bin.md5 the on-device "Update Firmware (GitHub)" button
	# needs) to the GitHub release. Field units self-update by asset name, so keep
	# the "Glasscalibur" asset name stable.
	name: Build firmware

	on:
	push:
	branches: [main]
	tags: ['v*']
	pull_request:
	workflow_dispatch:

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: '3.11'
	- name: Install ESPHome
	run: pip install esphome

	# On a tag build, stamp the release version (strip a leading "v") so the
	# on-device "Firmware Version" matches the release the unit is running.
	- name: Compile Glasscalibur
	run: \|
	if [ "${{ github.ref_type }}" = "tag" ]; then
	V="${{ github.ref_name }}"; V="${V#v}"
	esphome -s fw_version "$V" compile firmware/esphome/Glasscalibur-esphome.yml
	else
	esphome compile firmware/esphome/Glasscalibur-esphome.yml
	fi

	- name: Collect binaries + md5
	run: \|
	mkdir -p dist
	F=$(find . -path "/.pioenvs//firmware.factory.bin" \| head -1)
	O=$(find . -path "/.pioenvs//firmware.ota.bin" \| head -1)
	cp "$F" "dist/Glasscalibur.factory.bin"
	cp "$O" "dist/Glasscalibur.ota.bin"
	md5sum "dist/Glasscalibur.ota.bin" \| cut -d' ' -f1 > "dist/Glasscalibur.ota.bin.md5"

	- uses: actions/upload-artifact@v4
	with:
	name: Glasscalibur
	path: dist/*

	- name: Attach to release
	if: startsWith(github.ref, 'refs/tags/')
	uses: softprops/action-gh-release@v2
	with:
	files: dist/*