Direnv GitHub Action

Sets up direnv with your Nix flake and exports variables from .envrc into GITHUB_ENV for subsequent workflow steps. Requires Nix installed on the runner (e.g., Determinate Systems installer).

Requirements

• Nix installed on the runner (e.g., Determinate Systems installer).

Inputs

• flake-url (default .): Nix flake URL or path used by nix run.
• extra-args (default ""): Extra flags for nix run (e.g., --accept-flake-config).

Usage

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5
      - uses: DeterminateSystems/nix-installer-action@v19
      - uses: DeterminateSystems/magic-nix-cache-action@v13

      - name: Direnv environment
        uses: shikanime-studio/direnv-action@v1
        with:
          flake-url: nixpkgs#direnv
          extra-args: --accept-flake-config

      - name: Use exported environment
        run: |
          echo "MY_ENV_VAR: $MY_ENV_VAR"