name: releaseprep
description: Prepare release files or recommend a next semantic version tag.

inputs:
  version:
    description: Semantic version to release.
    required: false
  version-file:
    description: Path to version file relative to repository root.
    required: false
    default: ''
  version-pattern:
    description: Regular expression with one capture group for current version.
    required: false
    default: ''
  changelog:
    description: Path to changelog file relative to repository root.
    required: false
    default: changelog.md
  recommend:
    description: If true, print recommended next release tag.
    required: false
    default: 'false'

runs:
  using: composite
  steps:
    - uses: actions/checkout@v4

    - uses: actions/setup-go@v5
      with:
        go-version: '1.26.1'

    - name: Run releaseprep
      shell: bash
      run: |
        set -euo pipefail

        args=(--root .)

        if [[ "${{ inputs.recommend }}" == "true" ]]; then
          args+=(--recommend)
        else
          if [[ -z "${{ inputs.version }}" ]]; then
            echo "input 'version' is required when recommend is false" >&2
            exit 2
          fi
          args+=(--version "${{ inputs.version }}" --date "$(date -u +%F)")
        fi

        if [[ -n "${{ inputs.version-file }}" ]]; then
          args+=(--version-file "${{ inputs.version-file }}")
        fi

        if [[ -n "${{ inputs.version-pattern }}" ]]; then
          args+=(--version-pattern "${{ inputs.version-pattern }}")
        fi

        if [[ -n "${{ inputs.changelog }}" ]]; then
          args+=(--changelog "${{ inputs.changelog }}")
        fi

        go run git.hrafn.xyz/aether/vociferate/cmd/releaseprep@latest "${args[@]}"