name: toolchain-build
description: 'Builds or retrieves cache of the selected toolchain'

inputs:
  tools-version:
    description: Which toolchain to build
    required: false
    default: 'riscv-tools'

runs:
  using: "composite"
  steps:
    - name: Generate hashes
      run: .github/scripts/create-hash.sh
      shell: bash

    - name: Generate keys
      id: genkey
      run: |
        echo "::set-output name=riscvtools-cache-key::riscv-tools-installed-${{ env.tools-cache-version }}-$(shasum riscv-tools.hash | cut -d' ' -f1)"
        echo "::set-output name=esptools-cache-key::esp-tools-installed-${{ env.tools-cache-version }}-$(shasum esp-tools.hash | cut -d' ' -f1)"
      shell: bash

    # brute force way to swap between riscv/esp-tools caches
    - uses: actions/cache@v2
      id: toolchain-build-riscv-tools
      if: ${{ inputs.tools-version == "riscv-tools" }}
      with:
        path: ${{ inputs.tools-version }}-install
        key: ${{ steps.genkey.outputs.riscvtools-cache-key }}

    - uses: actions/cache@v2
      id: toolchain-build-esp-tools
      if: ${{ inputs.tools-version == "esp-tools" }}
      with:
        path: ${{ inputs.tools-version }}-install
        key: ${{ steps.genkey.outputs.esptools-cache-key }}

    - name: Build toolchain if not cached
      run: |
        if [[ "${{ steps.toolchain-build-riscv-tools.outputs.cache-hit }}" != 'true' || "${{ steps.toolchain-build-esp-tools.outputs.cache-hit }}" != 'true' ]]; then
          echo "Cache miss on ${{ inputs.tools-version }}-install. Build."
          ./.github/scripts/build-toolchains.sh ${{ inputs.tools-version }}
        else
          echo "Cache hit do not rebuild toolchain ${{ inputs.tools-version }}."
        fi
      shell: bash