action.yml

name: Setup FreSH
description: Download a FreSH release, check it against its SHA256SUMS.txt and put fresh on PATH
author: S42yt
branding:
  icon: terminal
  color: green

inputs:
  version:
    description: 'latest for the newest release, pre for the newest prerelease or release, or a version such as 26.11.1-prerelease-7'
    default: latest
  token:
    description: Token used to ask GitHub for the releases
    default: ${{ github.token }}

outputs:
  version:
    description: The version that was installed
    value: ${{ steps.install.outputs.version }}

runs:
  using: composite
  steps:
    - id: install
      shell: bash
      env:
        GH_TOKEN: ${{ inputs.token }}
        FRESH_VERSION: ${{ inputs.version }}
      run: |
        set -euo pipefail
        repo=S42yt/FreSH

        case "$RUNNER_OS-$RUNNER_ARCH" in
          Windows-X64) asset=FreSH.exe binary=FreSH.exe ;;
          Windows-ARM64) asset=FreSH-arm64.exe binary=FreSH.exe ;;
          macOS-X64) asset=fresh-macos-x86_64 binary=fresh ;;
          macOS-ARM64) asset=fresh-macos-arm64 binary=fresh ;;
          Linux-X64) asset=fresh-linux-x86_64 binary=fresh ;;
          Linux-ARM64) asset=fresh-linux-arm64 binary=fresh ;;
          *) echo "::error::no FreSH build for $RUNNER_OS on $RUNNER_ARCH"; exit 1 ;;
        esac

        case "$FRESH_VERSION" in
          latest) tag=$(gh release view --repo "$repo" --json tagName --jq .tagName) ;;
          pre) tag=$(gh api "repos/$repo/releases" --jq '[.[] | select(.draft | not) | select(.tag_name | contains("-experiment-") | not)][0].tag_name') ;;
          *) tag=v${FRESH_VERSION#v} ;;
        esac

        dir="$RUNNER_TEMP/fresh-$tag"
        mkdir -p "$dir"
        cd "$dir"
        gh release download "$tag" --repo "$repo" --clobber --pattern "$asset" --pattern SHA256SUMS.txt
        if [ ! -f "$asset" ]; then
          echo "::error::FreSH $tag has no $asset, see https://github.com/$repo/releases/tag/$tag"
          exit 1
        fi

        line=$(awk -v asset="$asset" '$2 == asset || $2 == "*" asset' SHA256SUMS.txt)
        if [ -z "$line" ]; then
          echo "::error::SHA256SUMS.txt of FreSH $tag has no line for $asset"
          exit 1
        fi
        if command -v sha256sum > /dev/null; then sum=sha256sum; else sum="shasum -a 256"; fi
        echo "$line" | $sum -c -

        [ "$asset" = "$binary" ] || mv "$asset" "$binary"
        chmod +x "$binary"
        echo "$dir" >> "$GITHUB_PATH"
        echo "version=${tag#v}" >> "$GITHUB_OUTPUT"