ci: switch to Coveralls' first-party GitHub Action #1470

	---
	name: CI

	on:
	push:
	branches:
	- master
	- v[0-9]+.[0-9]+.x
	- gha-*
	pull_request:
	branches:
	- master
	- v[0-9]+.[0-9]+.x

	jobs:
	tests:
	if: ${{ github.repository_owner == 'sopel-irc' }}
	name: Test suite
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version:
	- "3.8"
	- "3.9"
	- "3.10"
	- "3.11"
	- "3.12"
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install --upgrade wheel
	python -m pip install --upgrade -r dev-requirements.txt
	python -m pip install -e .
	- name: Run linters (code style and type check)
	run: make lint
	- name: Run pytest
	run: make test_norecord
	- name: Generate XML coverage report
	# Coveralls reporter doesn't understand branch coverage in .coverage DB
	# and conversion to LCOV doesn't work right either
	run: coverage xml
	- name: Upload coverage data to coveralls.io
	uses: coverallsapp/github-action@v2
	with:
	flag-name: ${{ matrix.python-version }}
	parallel: true
	file: coverage.xml

	coveralls:
	if: ${{ github.repository_owner == 'sopel-irc' }}
	# Would be very nice to find an alternative implementation that doesn't
	# pollute the list of checks on PRs someday, but this seems unlikely.
	name: Finalize job on coveralls.io
	needs: tests
	runs-on: ubuntu-latest
	steps:
	- name: Notify coveralls.io
	uses: coverallsapp/github-action@v2
	with:
	parallel-finished: true
	carryforward: all

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