action.yml

name: Create GitHub Releases based on changelog
description: GitHub Action for creating GitHub Releases based on changelog

inputs:
  changelog:
    description: Path to changelog (variables `$tag`, `$version`, `$prefix`, and any string)
    required: false
  allow-missing-changelog:
    description: >
      Create the release even if the changelog entry corresponding to the version is missing.
      The default value of the changelog will be an empty string.
    required: false
    default: 'false'
  title:
    description: Format of title (variables `$tag`, `$version`, `$prefix`, and any string)
    required: false
    default: '$tag'
  draft:
    description: Create a draft release ('true' or 'false')
    required: false
    default: 'false'
  branch:
    description: Reject releases from commits not contained in branches that match the specified pattern (regular expression)
    required: false
  prefix:
    description: >
      An optional pattern that matches a prefix for the release tag, before the
      version number.

      If a prefix is provided, an optional '-' character is permitted (but not
      required) between the prefix and the version number.   For example, the
      tags 'my-crate-v0.1.2' and 'my-crate0.1.0' both have the prefix 'my-crate'.

      This is interpreted as a bash-style regular expression, so it may be used
      to match multiple prefix strings. Therefore, literal characters that
      are part of bash's regular expression syntax, such as `$`, `^`, `[`, `]`,
      `{`, `}`, `(`, `)`, and `|` must be escaped if they occur in the prefix
      pattern.

      If a prefix pattern is provided, the portion of the tag that matched the
      prefix can be interpolated into `title` and `changelog` via the `$prefix`
      variable.
    required: false
    default: ''
  token:
    description: >
      GitHub token for creating GitHub Releases.

      If not set this option, the GITHUB_TOKEN environment variable will be used.
    required: false
  ref:
    description: >
      Fully-formed tag ref for this release.

      If not set this option, the GITHUB_REF environment variable (automatically set by GitHub Actions) will be used.
    required: false

outputs:
  computed-prefix:
    description: >
      The computed prefix, including '-' and 'v' if found.
    value: ${{ steps.main.outputs.computed-prefix }}
  version:
    description:
      The version number extracted from the tag. The tag name is a concatenation of computed-prefix
      and version.
    value: ${{ steps.main.outputs.version }}

# Note:
# - inputs.* should be manually mapped to INPUT_* due to https://github.com/actions/runner/issues/665
# - Use GITHUB_*/RUNNER_* instead of github.*/runner.* due to https://github.com/actions/runner/issues/2185
runs:
  using: composite
  steps:
    - id: main
      run: bash --noprofile --norc "${GITHUB_ACTION_PATH:?}/main.sh"
      shell: bash
      env:
        INPUT_CHANGELOG: ${{ inputs.changelog }}
        INPUT_ALLOW_MISSING_CHANGELOG: ${{ inputs.allow-missing-changelog }}
        INPUT_TITLE: ${{ inputs.title }}
        INPUT_DRAFT: ${{ inputs.draft }}
        INPUT_BRANCH: ${{ inputs.branch }}
        INPUT_PREFIX: ${{ inputs.prefix }}
        INPUT_TOKEN: ${{ inputs.token }}
        INPUT_REF: ${{ inputs.ref }}