Add cplint workflow support for minimal lint-only builds #7784

	name: "p4c-lint"

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

	jobs:
	p4c-lint:
	runs-on: ubuntu-22.04
	env:
	IMAGE_TYPE: test
	CMAKE_ONLY: ON
	CTEST_PARALLEL_LEVEL: 4
	ENABLE_GTESTS: ON
	ENABLE_TOFINO: ON
	ENABLE_TEST_TOOLS: ON
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: recursive
	- uses: actions/setup-python@v5

	- name: ccache
	uses: hendrikmuhs/ccache-action@v1
	with:
	key: apply-linters-${{ runner.os }}
	max-size: 1000M

	- name: Minimal Lint Setup
	run: \|
	sudo apt-get update
	sudo apt-get install -y cmake g++ python3-pip clang-format
	pip3 install -r requirements.txt
	mkdir -p build && cd build
	cmake .. -DCMAKE_LINT_ONLY=ON

	- name: Run cpplint on C/C++ files.
	run: cmake --build build --target cpplint

	- name: Run clang-format on C/C++ files.
	run: cmake --build build --target clang-format

	- name: Run black and isort on Python files.
	run: \|
	cmake --build build --target black
	cmake --build build --target isort

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