CI: test using fork #17

	name: pr-size

	on:
	pull_request:
	branches: [ MK3, MK3_* ]

	env:
	TARGETS: "MK3S_MULTILANG MK3_MULTILANG"

	jobs:
	build:
	runs-on: ubuntu-latest
	permissions:
	pull-requests: write

	steps:

	# setup base required dependencies
	- name: Setup dependencies
	run: \|
	sudo apt-get install cmake ninja-build python3-pyelftools python3-regex python3-polib

	# build the PR branch
	- name: Checkout PR
	uses: actions/checkout@v3

	- name: Setup build dependencies
	run: \|
	./utils/bootstrap.py

	- name: Build PR
	run: \|
	rm -rf build-pr
	mkdir build-pr
	cd build-pr
	cmake .. -DCMAKE_TOOLCHAIN_FILE="../cmake/AvrGcc.cmake" -DCMAKE_BUILD_TYPE=Release -G Ninja
	ninja $TARGETS

	# save pr-size for later use
	- name: Save pr-size from PR
	run: \|
	cp -f ./.github/workflows/pr-size.sh build-pr

	# build the base branch
	- name: Checkout base
	uses: actions/checkout@v3
	with:
	clean: false
	ref: ${{ github.event.pull_request.base.ref }}

	- name: Build base
	run: \|
	rm -rf build-base
	mkdir build-base
	cd build-base
	cmake .. -DCMAKE_TOOLCHAIN_FILE="../cmake/AvrGcc.cmake" -DCMAKE_BUILD_TYPE=Release -G Ninja
	ninja $TARGETS

	# extract/show build differences
	- name: Calculate binary changes
	run: \|
	rm -rf build-changes
	./build-pr/pr-size.sh build-changes build-base build-pr $TARGETS

	- name: Add PR Comment
	uses: actions/github-script@v3
	with:
	github-token: ${{secrets.GITHUB_TOKEN}}
	script: \|
	github.issues.createComment({
	issue_number: context.issue.number,
	owner: context.repo.owner,
	repo: context.repo.repo,
	body: 'Does this comment appear when using Github fork?'
	})

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