boards/xplained-pro: Provide board files for SAMD21 Xplained Pro. #29

	name: Build CI

	on:
	push:
	pull_request:
	release:
	types: [published]

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	build:
	runs-on: ubuntu-22.04
	steps:
	- name: Set up repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	filter: "blob:none"
	show-progress: false
	submodules: false
	- name: Set up compiler
	uses: carlosperate/arm-none-eabi-gcc-action@v1
	with:
	# When changing this update what Windows grabs too!
	release: '13.2.Rel1'
	- name: Extract version identifier
	run: \|
	echo >> $GITHUB_ENV "UF2_VERSION_BASE=`git describe --dirty --always --tags`"
	- name: Build
	run: make submodules && make -j$(nproc) all-boards && mv build/drop build/uf2-samdx1-$UF2_VERSION_BASE
	- name: Upload artifact
	uses: actions/upload-artifact@v4
	with:
	path: build/uf2-samdx1-${{ env.UF2_VERSION_BASE }}/*
	name: uf2-samdx1-${{ env.UF2_VERSION_BASE }}

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