Bump actions/checkout from 3 to 4 #278

	#SPDX-License-Identifier: MIT
	#Copyright (c) "2023" . The DeepCausality Authors. All Rights Reserved.

	# Configuration inspired by Omnissi/NISTRS
	# https://github.com/Omnissi/NISTRS/blob/main/.github/workflows/rust.yml

	name: Code Coverage

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

	env:
	CARGO_TERM_COLOR: always

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: nightly
	override: true

	- name: Run tests
	# Fixes missing coverage for macos
	# https://community.codecov.com/t/format-not-tested/2261
	run: cargo test --tests --verbose
	env:
	# These will ensure that things like dead code elimination do not skew the coverage.
	# https://github.com/mozilla/grcov/blob/master/README.md#example-how-to-generate-gcda-files-for-a-rust-project
	CARGO_INCREMENTAL: 0
	RUSTFLAGS: '-Zprofile -Ccodegen-units=1 -Copt-level=0 -Coverflow-checks=off -Zpanic_abort_tests'
	RUSTDOCFLAGS: '-Cpanic=abort'

	- name: rust-grcov
	# You may pin to the exact commit or the version.
	# uses: actions-rs/grcov@bb47b1ed7883a1502fa6875d562727ace2511248
	uses: actions-rs/grcov@v0.1

	- name: Codecov
	# You may pin to the exact commit or the version.
	# uses: codecov/codecov-action@81cd2dc8148241f03f5839d295e000b8f761e378
	uses: codecov/codecov-action@v3
	with:
	# Repository upload token - get it from codecov.io. Required only for private repositories
	token: ${{ secrets.CODECOV_TOKEN }}
	files: lcov.info # configured in actions-rs/grcov.yml files
	fail_ci_if_error: true
	verbose: true

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