Add pipeline file, tests #1

	name: Validate PR

	on:
	pull_request:
	branches: [main]

	concurrency:
	group: rust-validation-${{ github.head_ref }}
	cancel-in-progress: true

	jobs:
	formatting:
	name: Rustfmt
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Code
	uses: actions/checkout@v2

	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	components: rustfmt

	- name: Check Formatting
	run: cargo fmt -- --check

	linting:
	name: Clippy
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Code
	uses: actions/checkout@v2

	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	components: clippy

	- name: Run Clippy
	run: cargo clippy --tests -- -D warnings

	testing:
	name: Cargo Test
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Code
	uses: actions/checkout@v2

	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable

	- name: Run Tests
	run: cargo test

	coverage:
	name: Code Coverage
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Code
	uses: actions/checkout@v2

	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable

	- name: Install Tarpaulin
	run: cargo install cargo-tarpaulin

	- name: Run Tarpaulin
	run: \|
	COVERAGE=$(cargo tarpaulin --out Xml \| grep 'Coverage' \| grep -o '[0-9]\+\.[0-9]\+')
	echo "Code coverage is $COVERAGE%"
	if (( $(echo "$COVERAGE < 90.0" \|bc -l) )); then
	echo "Code coverage is below 90%, failing CI"
	exit 1
	fi

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