action.yml

name: 'Install dfx'
description: 'Install the dfx utility at a particular version'
inputs:
  dfx-version:
    description: >
      The dfx version to install. This value will be used to populate
      the DFX_VERSION variable that will be handled by the installation
      script "install.sh".
      If "latest" is provided, the latest version will be installed.
      If "auto" is provided, the version will be taken from the "dfx" field in dfx.json if it exists; otherwise as if "latest".
    default: 'auto'

runs:
  using: composite
  steps:
    - name: Install dfx
      shell: sh
      env:
        DFXVM_INIT_YES: 'true'
      run: |
        if [ "${{ inputs.dfx-version }}" = "latest" ]; then
          export DFX_VERSION=""
        elif [ "${{ inputs.dfx-version }}" = "auto" ]; then
          export DFX_VERSION="$(jq -er '.dfx // ""' dfx.json || echo "")"
        else
          export DFX_VERSION="${{ inputs.dfx-version }}"
        fi

        echo "DFX_VERSION is $DFX_VERSION"

        # Retry up to 10 times.  Each attempt has 20 seconds total to complete, 5 seconds of which is to connect.
        # This uses the default retry delay, which starts at 1s and doubles each time, up to 10 min.
        if install_script=$(curl --fail --silent --show-error --location --retry 10 --connect-timeout 5 --max-time 20 --retry-connrefused  https://internetcomputer.org/install.sh); then
          sh -c "$install_script"
        else
          echo "Failed to download install script."
          exit 1
        fi
    - name: Set up path (linux)
      shell: sh
      if: runner.os == 'Linux'
      run: |
        echo "$HOME/.local/share/dfx/bin" >> $GITHUB_PATH
    - name: Set up path (macos)
      shell: sh
      if: runner.os == 'macOS'
      run: |
        echo "$HOME/Library/Application Support/org.dfinity.dfx/bin" >> $GITHUB_PATH