flox install in github actions

flox.yml

# ============================================================================ #
#
#
#
# ---------------------------------------------------------------------------- #
#
name: "Flox Tests"

on:
  push:
    branches:
      -  main
  pull_request:
    types: [opened, synchronize, reopened]

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true


# ---------------------------------------------------------------------------- #

jobs:
  all-tests:
    runs-on: ubuntu-latest
    env:
      SYSTEM: x86_64-linux
      SSH_AUTH_SOCK: /tmp/ssh_agent.sock

    steps:
      - uses: cachix/install-nix-action@11f4ad19be46fd34c005a2864996d8f197fb51c6
        with:
          install_url: https://releases.nixos.org/nix/nix-2.13.3/install
          nix_path: nixpkgs=channel:nixpkgs-22.05
          extra_nix_config: |
            experimental-features = nix-command flakes
            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
            substituters = https://cache.nixos.org
            trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= flox-store-public-0:8c/B+kjIaQ+BloCmNkRUKwaVPFWkriSAd0JJvuDu4F0=
            trusted-substituters = https://cache.floxdev.com
            max-jobs = auto
            cores = 0
            substitute = true
            builders-use-substitutes = true
            fallback = true
            connect-timeout = 5
            stalled-download-timeout = 90
            timeout = 0


# ---------------------------------------------------------------------------- #

      - name: Git and SSH Setup
        run: |
          set -eu;
          set -o pipefail;
          mkdir -p /home/runner/.ssh;
          ssh-keyscan github.com >> /home/runner/.ssh/known_hosts;
          ssh-keygen -f /home/runner/.ssh/id_rsa -t rsa -N ''  \
                     -C [email protected];
          chmod 600 /home/runner/.ssh/id_rsa;
          ssh-agent -a "$SSH_AUTH_SOCK" > /dev/null;
          ssh-add /home/runner/.ssh/id_rsa;
          git config --global user.email "[email protected]";
          git config --global user.name "Flox GitHubActions";


# ---------------------------------------------------------------------------- #

      - uses: actions/checkout@v3

# ---------------------------------------------------------------------------- #

      - name: Intall Flox
        run: |
          set -eu;
          set -o pipefail;
          nix profile install --impure                    \
            --experimental-features "nix-command flakes"  \
            --accept-flake-config                         \
            'github:flox/floxpkgs#flox.fromCatalog'       \
          ;


# ---------------------------------------------------------------------------- #

      - name: Use Flox
        run: |
          set -eu;
          set -o pipefail;
          flox install hello;
          . <( flox activate; );
          hello;
    

# ---------------------------------------------------------------------------- #
#
#
#
# ============================================================================ #