lix-installer/action.yml

name: Harmonic
description: Install Nix
inputs:
  planner:
    description: A planner to use
    required: false
  extra-args:
    description: Extra args to pass to the planner (prefer using structured `with:` arguments unless using a custom planner!)
    required: false
  github-token:
    description: A Github Token so that authenticated requests can be made (set this to `secrets.GITHUB_TOKEN`)
  channels:
    description: Channel(s) to add (eg `nixpkgs=https://nixos.org/channels/nixpkgs-unstable`)
    required: false
  modify-profile:
    description: Modify the user profile to automatically load nix
    required: false
  daemon-user-count:
    description: Number of build users to create
    required: false
  nix-build-group-name:
    description: The Nix build group name
    required: false
  nix-build-group-id:
    description: The Nix build group GID
    required: false
  nix-build-user-prefix:
    description: The Nix build user prefix (user numbers will be postfixed)
    required: false
  nix-build-user-base:
    description: The Nix build user base UID (ascending)
    required: false
  nix-package-url:
    description: The Nix package URL
    required: false
  extra-conf:
    description: Extra configuration lines for `/etc/nix.conf` (includes `access-tokens` with `secrets.GITHUB_TOKEN` automatically if `github-token` is set)
    required: false
  mac-encrypt:
    description: Force encryption on the volume (Mac only)
    required: false
  mac-case-sensitive:
    description: Use a case sensitive volume (Mac only)
    required: false
  mac-volume-label:
    description: The label for the created APFS volume (Mac only)
    required: false
  mac-root-disk:
    description: The root disk of the target (Mac only)
    required: false
  nix-install-url:
    description: A URL pointing to a harmonic `nix-install.sh` script
    required: true
    default: https://install.determinate.systems/nix
  local-root:
    description: A local `harmonic` binary root, overrides the `nix-install` setting (binaries should be named `harmonic-$ARCH`, eg. `harmonic-x86_64-linux`)
    required: false
  logger:
    description: The logger to use for install (eg. `pretty`, `json`, `full`, `compact`)
    required: false
  log-directives:
    description: A list of Tracing directives, comma separated (eg. `harmonic=trace`, see https://docs.rs/tracing-subscriber/latest/tracing_subscriber/filter/struct.EnvFilter.html#directives)
    required: false
  backtrace:
    description: The setting for `RUST_BACKTRACE` (see https://doc.rust-lang.org/std/backtrace/index.html#environment-variables)
    required: false


runs:
  using: composite
  steps:
    - name: Install Nix
      shell: bash
      run: |
        if [ -n "${{ inputs.channels }}" ]; then
          export HARMONIC_CHANNELS=${{ inputs.channels }}
          echo "Set HARMONIC_CHANNELS=$HARMONIC_CHANNELS"
        fi

        if [ -n "${{ inputs.modify-profile }}" ]; then
          export HARMONIC_MODIFY_PROFILE=${{ inputs.modify-profile }}
          echo "Set HARMONIC_MODIFY_PROFILE=$HARMONIC_MODIFY_PROFILE"
        fi

        if [ -n "${{ inputs.daemon-user-count }}" ]; then
          export HARMONIC_DAEMON_USER_COUNT=${{ inputs.daemon-user-count }}
          echo "Set HARMONIC_DAEMON_USER_COUNT=$HARMONIC_DAEMON_USER_COUNT"
        fi

        if [ -n "${{ inputs.nix-build-group-name }}" ]; then
          export HARMONIC_NIX_BUILD_GROUP_NAME=${{ inputs.nix-build-group-name }}
          echo "Set HARMONIC_NIX_BUILD_GROUP_NAME=$HARMONIC_NIX_BUILD_GROUP_NAME"
        fi

        if [ -n "${{ inputs.nix-build-group-id }}" ]; then
          export HARMONIC_NIX_BUILD_GROUP_ID=${{ inputs.nix-build-group-id }}
          echo "Set HARMONIC_NIX_BUILD_GROUP_ID=$HARMONIC_NIX_BUILD_GROUP_ID"
        fi

        if [ -n "${{ inputs.nix-build-user-prefix }}" ]; then
          export HARMONIC_NIX_BUILD_USER_ID_BASE=${{ inputs.nix-build-user-prefix }}
          echo "Set HARMONIC_NIX_BUILD_USER_ID_BASE=$HARMONIC_NIX_BUILD_USER_ID_BASE"
        fi

        if [ -n "${{ inputs.nix-build-user-base }}" ]; then
          export HARMONIC_NIX_BUILD_USER_PREFIX=${{ inputs.nix-build-user-base }}
          echo "Set HARMONIC_NIX_BUILD_USER_PREFIX=$HARMONIC_NIX_BUILD_USER_PREFIX"
        fi

        if [ -n "${{ inputs.nix-package-url }}" ]; then
          export HARMONIC_NIX_PACKAGE_URL=${{ inputs.nix-package-url }}
          echo "Set HARMONIC_NIX_PACKAGE_URL=$HARMONIC_NIX_PACKAGE_URL"
        fi

        if [ -n "${{ inputs.extra-conf }}" ]; then
          if [ -n "${{ inputs.github-token }}" ]; then
            export HARMONIC_EXTRA_CONF="${{ inputs.extra-conf }}\naccess-tokens = github.com=${{ inputs.github-token }}"
          else
            export HARMONIC_EXTRA_CONF="${{ inputs.extra-conf }}"
          fi
          echo "Set HARMONIC_EXTRA_CONF=$HARMONIC_EXTRA_CONF"
        else
          if [ -n "${{ inputs.github-token }}" ]; then
            export HARMONIC_EXTRA_CONF="access-tokens = github.com=${{ inputs.github-token }}"
            echo "Set HARMONIC_EXTRA_CONF=$HARMONIC_EXTRA_CONF"
          fi
        fi

        if [ -n "${{ inputs.mac-encrypt }}" ]; then
          export HARMONIC_ENCRYPT=${{ inputs.mac-encrypt }}
          echo "Set HARMONIC_ENCRYPT=$HARMONIC_ENCRYPT"
        fi

        if [ -n "${{ inputs.mac-case-sensitive }}" ]; then
          export HARMONIC_CASE_SENSITIVE=${{ inputs.mac-case-sensitive }}
          echo "Set HARMONIC_CASE_SENSITIVE=$HARMONIC_CASE_SENSITIVE"
        fi

        if [ -n "${{ inputs.mac-volume-label }}" ]; then
          export HARMONIC_VOLUME_LABEL=${{ inputs.mac-volume-label }}
          echo "Set HARMONIC_VOLUME_LABEL=$HARMONIC_VOLUME_LABEL"
        fi

        if [ -n "${{ inputs.mac-root-disk }}" ]; then
          export HARMONIC_ROOT_DISK=${{ inputs.mac-root-disk }}
          echo "Set HARMONIC_ROOT_DISK=$HARMONIC_ROOT_DISK"
        fi

        if [ -n "${{ inputs.local-root }}" ]; then
          if [ "$RUNNER_OS" == "macOS" ]; then
            export PYTHON="python3"
          else
            export PYTHON="python"
          fi
          $PYTHON -m http.server --directory ${{ inputs.local-root }} --bind 0.0.0.0 8000 &
          export HTTP_PID=$!
          echo "Started simple http server for ${{ inputs.local-root }} on 0.0.0.0:8000"
          while (! (: </dev/tcp/localhost/8000) &> /dev/null); do
            sleep 1
          done
          export NIX_INSTALL_FORCE_ALLOW_HTTP="1"
          echo "Set NIX_INSTALL_FORCE_ALLOW_HTTP=$NIX_INSTALL_FORCE_ALLOW_HTTP"
          export NIX_INSTALL_URL=0.0.0.0:8000/nix-install.sh
          echo "Set NIX_INSTALL_URL=$NIX_INSTALL_URL"
          export NIX_INSTALL_BINARY_ROOT=http://0.0.0.0:8000/
          echo "Set NIX_INSTALL_BINARY_ROOT=$NIX_INSTALL_BINARY_ROOT"
          export NIX_INSTALL_FORCE_ALLOW_HTTP=1
          echo "Set NIX_INSTALL_FORCE_ALLOW_HTTP=$NIX_INSTALL_FORCE_ALLOW_HTTP"
        else
          export NIX_INSTALL_URL=${{ inputs.nix-install-url }}
          echo "Set NIX_INSTALL_URL=$NIX_INSTALL_URL"
        fi

        if [ -n "${{ inputs.logger }}" ]; then
          export HARMONIC_LOGGER=${{ inputs.logger }}
          echo "Set HARMONIC_LOGGER=$HARMONIC_LOGGER"
        fi

        if [ -n "${{ inputs.log-directives }}" ]; then
          export HARMONIC_LOG_DIRECTIVES=${{ inputs.log-directives }}
          echo "Set HARMONIC_LOG_DIRECTIVES=$HARMONIC_LOG_DIRECTIVES"
        fi

        if [ -n "${{ inputs.backtrace }}" ]; then
          export RUST_BACKTRACE=${{ inputs.backtrace }}
          echo "Set RUST_BACKTRACE=$RUST_BACKTRACE"
        fi

        export HARMONIC_NO_CONFIRM=true
        echo "Set HARMONIC_NO_CONFIRM=$HARMONIC_NO_CONFIRM"

        curl --retry 20 -L $NIX_INSTALL_URL | sh -s -- install ${{ inputs.planner }} ${{ inputs.extra-args }}

        if [ -n "$HTTP_PID" ]; then
          kill $HTTP_PID
        fi