name: install dotslash
author: Jon Janzen
description: Prebuilt binaries of https://dotslash-cli.com
branding:
  icon: activity
  color: purple

runs:
  using: composite
  steps:
    - id: configure
      run: |
        platform=${{runner.os == 'macOS' && 'macos' || runner.os == 'Windows' && 'windows' || runner.arch == 'ARM64' && 'ubuntu-22.04.arm64' || 'ubuntu-22.04.x86_64'}}
        release_json="${{runner.temp}}/install-dotslash-release.json"
        curl https://api.github.com/repos/facebook/dotslash/releases/latest \
        --header "authorization: Bearer ${{ github.token }}" \
        --output "$release_json" \
        --location --silent --show-error --fail --retry 5
        release=$(tr -d '\n' < "$release_json")
        version=$(printf '%s\n' "$release" | sed -n 's/.*"tag_name"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p')
        asset="dotslash-${platform}.${version}.tar.gz"
        digest=$(printf '%s\n' "$release" | tr ',' '\n' | awk -v asset="$asset" '
          /"name"[[:space:]]*:[[:space:]]*"/ {
            value = $0
            sub(/.*"name"[[:space:]]*:[[:space:]]*"/, "", value)
            sub(/".*/, "", value)
            found = value == asset
          }
          found && /"digest"[[:space:]]*:[[:space:]]*"/ {
            value = $0
            sub(/.*"digest"[[:space:]]*:[[:space:]]*"/, "", value)
            sub(/".*/, "", value)
            print value
            exit
          }
        ')
        if [ -z "$version" ] || [ -z "$digest" ]; then
          echo "failed to resolve DotSlash release asset digest for $asset" >&2
          exit 1
        fi
        echo platform="$platform" >> $GITHUB_OUTPUT
        echo version="$version" >> $GITHUB_OUTPUT
        echo asset="$asset" >> $GITHUB_OUTPUT
        echo digest="$digest" >> $GITHUB_OUTPUT
      shell: bash

    - run: mkdir -p "${{runner.temp}}/install-dotslash/bin"
      shell: bash

    - run: |
        curl https://github.com/facebook/dotslash/releases/download/${{steps.configure.outputs.version}}/${{steps.configure.outputs.asset}} \
        --header "authorization: Bearer ${{ github.token }}" \
        --output "${{runner.temp}}/install-dotslash/dotslash.tar.gz" \
        --location --silent --show-error --fail --retry 5
      shell: bash

    - run: |
        expected="${{steps.configure.outputs.digest}}"
        expected_sha256="${expected#sha256:}"
        archive="${{runner.temp}}/install-dotslash/dotslash.tar.gz"
        if command -v sha256sum >/dev/null 2>&1; then
          echo "$expected_sha256  $archive" | sha256sum --check
        else
          actual_sha256=$(shasum -a 256 "$archive" | cut -d ' ' -f 1)
          test "$actual_sha256" = "$expected_sha256"
        fi
      shell: bash

    - run: tar xvf "${{runner.temp}}/install-dotslash/dotslash.tar.gz" -C "${{runner.temp}}/install-dotslash/bin/"
      if: ${{runner.os != 'Windows'}}
      shell: bash

    - run: tar xvf "${{runner.temp}}/install-dotslash/dotslash.tar.gz" -O >"${{runner.temp}}/install-dotslash/bin/dotslash.exe" --force-local
      if: ${{runner.os == 'Windows'}}
      shell: bash

    - run: echo "${{runner.temp}}/install-dotslash/bin" >> $GITHUB_PATH
      shell: bash

    - run: dotslash --version
      shell: bash