Upgrade codecov-action (v3->v4) to use Node20 #217

	---
	name: coverage

	on:
	push:
	paths-ignore:
	- '**.md'
	pull_request:
	paths-ignore:
	- '**.md'

	jobs:
	build:
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	os:
	- ubuntu:latest
	steps:
	- uses: actions/checkout@v4

	- name: Show OS information
	run: cat /etc/os-release 2>/dev/null \|\| echo /etc/os-release not available

	- name: Install build dependencies
	run: bash .github/workflows/install-dependencies

	- name: Build tang
	run: \|
	mkdir -p build && cd build
	export ninja=$(command -v ninja)
	[ -z "${ninja}" ] && export ninja=$(command -v ninja-build)
	meson .. -Db_coverage=true \|\| cat meson-logs/meson-log.txt >&2
	${ninja}

	- name: Run tests
	run: \|
	cd build
	meson test \|\| cat meson-logs/testlog.txt >&2

	- name: Show full test logs
	run: \|
	if [ -r build/meson-logs/testlog.txt ]; then
	cat build/meson-logs/testlog.txt >&2
	else
	echo "No test log available" >&2
	fi

	- name: Create coverage report
	run: \|
	cd build
	export ninja=$(command -v ninja)
	[ -z "${ninja}" ] && export ninja=$(command -v ninja-build)
	gcovr -r .. -f ../src -f src/ -e ../tests -e tests -x coverage.xml

	- uses: codecov/codecov-action@v4
	env:
	token: ${{ secrets.CODECOV_TOKEN }}
	slug: latchset/tang
	with:
	file: build/coverage.xml
	fail_ci_if_error: true # optional (default = false)
	verbose: true # optional (default = false)

	container:
	image: ${{matrix.os}}
	env:
	DISTRO: ${{matrix.os}}

	# vim:set ts=2 sw=2 et:

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