Add Ruby 11:58 to the CHANGELOG.md and prepare a release #10

	name: Add Ruby version to changelog && prepare release
	run-name: "Add ${{ inputs.is_jruby && 'J' \|\| ''}}Ruby ${{ inputs.ruby_version }} to the CHANGELOG.md and prepare a release"

	on:
	workflow_dispatch:
	inputs:
	ruby_version:
	description: "The Ruby version to announce"
	type: string
	required: true
	is_jruby:
	description: "JRuby release? (as opposed to MRI)"
	type: boolean
	default: false
	required: false

	# Disable all GITHUB_TOKEN permissions, since the GitHub App token is used instead.
	permissions: {}

	jobs:
	prepare-release:
	uses: heroku/languages-github-actions/.github/workflows/_classic-buildpack-prepare-release.yml@latest
	secrets: inherit
	with:
	custom_update_command: \|
	set -euo pipefail
	DATE_TODAY="$(date --utc --iso-8601)"

	sed --in-place "/## \[v${NEW_VERSION}\] - ${DATE_TODAY}/a\\
	\\
	- ${{ inputs.is_jruby && 'J' \|\| ''}}Ruby ${{inputs.ruby_version}} is now available
	" CHANGELOG.md

	sed --in-place --regexp-extended \
	--expression "s/v${EXISTING_VERSION}/v${NEW_VERSION}/" \
	lib/language_pack/version.rb

	if compgen -G 'changelogs/unreleased/*.md' > /dev/null; then
	# The unreleased changelogs directory contains a `.gitkeep` file, so we have to
	# copy the markdown files individually instead of renaming the directory.
	NEW_CHANGELOG_DIR="changelogs/v${NEW_VERSION}/"
	mkdir -p "${NEW_CHANGELOG_DIR}"
	mv changelogs/unreleased/*.md "${NEW_CHANGELOG_DIR}"
	fi

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