Shorten build time: Move 'doc' generation into a separate job, and run only for Trixie. #277

	name: Build for Linux (Trixie, pre-compiled libwlroots-dev)

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	jobs:
	build_matrix:
	strategy:
	matrix:
	compiler: [ "gcc", "clang" ]
	runs-on: ubuntu-latest
	container:
	image: debian:trixie

	steps:
	- name: Install package dependencies.
	run: \|
	apt-get update
	apt-get install -y \
	bison \
	clang \
	cmake \
	flex \
	gcc \
	git \
	libcairo2-dev \
	libncurses-dev \
	libwlroots-dev \
	pkg-config \
	plantuml \
	xwayland

	- name: Checkout code, including git submodules.
	uses: actions/checkout@v3
	with:
	# Not using 'recursive' prevents fetching extra submodules below
	# dependencies/. These are only needed to build wlroots from source.
	submodules: true

	- name: Configure wlmaker through CMake.
	run: \|
	export CC="${{ matrix.compiler }}"
	cmake -B build/

	- name: Build wlmaker.
	run: \|
	export CC="${{ matrix.compiler }}"
	cmake --build build/

	- name: Run all tests.
	run: \|
	ctest --test-dir build/ --build-run-dir build/ -V

	generate_doc:
	runs-on: ubuntu-latest
	container:
	image: debian:trixie

	steps:
	- name: Install package dependencies.
	run: \|
	apt-get update
	apt-get install -y \
	bison \
	clang \
	cmake \
	doxygen \
	flex \
	gcc \
	git \
	libcairo2-dev \
	libncurses-dev \
	libwlroots-dev \
	pkg-config \
	plantuml \
	xwayland

	- name: Checkout code, including git submodules.
	uses: actions/checkout@v3
	with:
	submodules: true

	- name: Configure wlmaker through CMake, with doxygen.
	run: \|
	cmake -Dconfig_DOXYGEN_CRITICAL=ON -B build/

	- name: Build documentation.
	run: cmake --build build/ --target doc

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