Rust #23

	name: Rust

	on: [pull_request, push]

	defaults:
	run:
	shell: bash

	env:
	CARGO_TERM_COLOR: always
	RUSTFLAGS: '-Cinstrument-coverage'

	jobs:
	build:
	runs-on: ubuntu-latest
	container: ghcr.io/nnpdf/pineappl-ci:latest
	steps:
	- uses: actions/checkout@v3

	- name: Run tests
	run: \|
	# we need stderr, but we can't run test twice because it'll regenerate/modify the binaries which interferes with `llvm-cov`
	cargo test --no-fail-fast 2> >(tee stderr 1>&2)
	# from https://stackoverflow.com/a/51141872/812178
	sed -i 's/\x1B\[[0-9;]\{1,\}[A-Za-z]//g' stderr

	- name: Generate code coverage
	run: \|
	find . -name '*.profraw' -exec $(rustc --print target-libdir)/../bin/llvm-profdata merge -sparse -o lhapdf.profdata {} +
	( sed -nE 's/[[:space:]]+Running( unittests\|) [^[:space:]]+ $([^)]+)$/\2/p' stderr \| tr ' ' "\n" ) \| \
	xargs printf ' --object %s' \| \
	xargs $(rustc --print target-libdir)/../bin/llvm-cov export \
	--ignore-filename-regex='/.cargo/registry' \
	--ignore-filename-regex='/cargo/registry' \
	--ignore-filename-regex='rustc' \
	--ignore-filename-regex='lhapdf/tests' \
	--instr-profile=lhapdf.profdata \
	--skip-functions \
	--format lcov > lcov.info

	- name: Upload to codecov.io
	uses: codecov/codecov-action@v3
	with:
	token: ${{secrets.CODECOV_TOKEN}}

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