chore: prepare to publish v0.3.0 #6

	name: Publish

	on:
	push:
	tags:
	- "v..*"
	workflow_dispatch:
	inputs:
	version:
	description: "Version of the release, should match an existing tag name. E.g. v0.1.0"
	required: true

	jobs:
	publish:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	# set the version to the input. if the input is not set (triggered by tag), it will be the tag name
	- run: echo "VERSION=${{ inputs.version \|\| github.ref_name }}" >> $GITHUB_ENV

	# validate crate version
	- run: \|
	VERSION=`cargo metadata --format-version=1 --no-deps \| jq '.packages[0].version' \| tr -d '"'`
	[ "v$VERSION" = "${{ env.VERSION }}" ] \|\| (echo "Version mismatch" && exit 1)

	# validate CHANGELOG version
	# TODO: use a CHANGELOG linter
	- run: \|
	VERSION=`cargo metadata --format-version=1 --no-deps \| jq '.packages[0].version' \| tr -d '"'`
	grep -q "## \[$VERSION\]" CHANGELOG.md \|\| (echo "Version not found in CHANGELOG" && exit 1)

	- uses: actions-rust-lang/setup-rust-toolchain@v1

	- run: cargo fmt --check

	- run: cargo clippy -- -D warnings

	- run: cargo test
	- run: cargo test --examples

	- run: cargo doc
	env:
	RUSTDOCFLAGS: -D warnings

	- run: gh workflow run coverage.yml
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	- run: cargo publish
	env:
	CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

	# create the release
	- run: gh release create ${{ env.VERSION }} -t ${{ env.VERSION }} --verify-tag -n "See [CHANGELOG.md](https://github.com/DiscreteTom/whitehole/blob/main/CHANGELOG.md)."
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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