add function to get the distance between routers #15

	on: [push, pull_request]

	name: Code coverage with grcov

	jobs:
	grcov:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os:
	- ubuntu-latest
	# - macOS-latest
	# - windows-latest

	steps:
	- uses: actions/checkout@v2

	- name: Install toolchain
	uses: actions-rs/toolchain@v1
	with:
	toolchain: nightly
	override: true
	profile: minimal

	- name: Execute tests
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --all-features --all
	env:
	CARGO_INCREMENTAL: 0
	RUSTFLAGS: "-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off"

	# Note that `actions-rs/grcov` Action can install `grcov` too,
	# but can't use faster installation methods yet.
	# As a temporary experiment `actions-rs/install` Action plugged in here.
	# Consider NOT to copy that into your workflow,
	# but use `actions-rs/grcov` only
	- name: Pre-installing grcov
	uses: actions-rs/[email protected]
	with:
	crate: grcov
	use-tool-cache: true

	- name: Gather coverage data
	id: coverage
	uses: actions-rs/[email protected]
	with:
	coveralls-token: ${{ secrets.COVERALLS_TOKEN }}
	config: .grcov-config.yml

	- name: Coveralls upload
	uses: coverallsapp/github-action@master
	with:
	github-token: ${{ secrets.GITHUB_TOKEN }}
	parallel: true
	path-to-lcov: ${{ steps.coverage.outputs.report }}

	grcov_finalize:
	runs-on: ubuntu-latest
	needs: grcov
	steps:
	- name: Coveralls finalization
	uses: coverallsapp/github-action@master
	with:
	github-token: ${{ secrets.GITHUB_TOKEN }}
	parallel-finished: true

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