added nix action

.github/workflows/docker.yml

@@ -1,28 +1,28 @@
 name: Docker
 
 on:
-  push:
-    branches: [ "main" ]
-    # paths:
-    #   - 'Cargo.toml'
-  pull_request:
-    branches: [ "main" ]
+    push:
+        branches: ["main"]
+        # paths:
+        #   - 'Cargo.toml'
+    pull_request:
+        branches: ["main"]
 
 env:
-  CARGO_TERM_COLOR: always
+    CARGO_TERM_COLOR: always
 
 jobs:
-  build:
+    build:
+        runs-on: ubuntu-latest
 
-    runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v4
+            - uses: hustcer/setup-nu@v3
+            - uses: cachix/install-nix-action@v31
+              with:
+                  nix_path: nixpkgs=channel:nixos-unstable
 
-    steps:
-    - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@v31
-      with:
-        nix_path: nixpkgs=channel:nixos-unstable
-
-    - run: nix build .#docker
-    - run: docker load -i result
-    - run: docker tag docki:latest docki:$(nu -c "cargo metadata --format-version=1 --no-deps | from json | get packages | first | get version")
-    - run: docker image ls
+            - run: nix build .#docker
+            - run: docker load -i result
+            - run: docker tag docki:latest docki:$(nu -c "cargo metadata --format-version=1 --no-deps | from json | get packages | first | get version")
+            - run: docker image ls