ci: add nix-check.yaml

.gitea/workflows/nix-check.yaml

@@ -0,0 +1,47 @@
+name: Test templates, puts into cache
+run-name: ${{ gitea.actor }} checking our nix flake 
+on: [push]
+jobs:
+  nix:
+    strategy:
+      fail-fast: true
+      matrix:
+        # os: [ubuntu-latest, nix-runner]
+        os: [nix-runner]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - run: echo "🎉 The job was automatically triggered by a ${{ gitea.event_name }} event."
+      - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Gitea!"
+      - run: echo "🔎 The name of your branch is ${{ gitea.ref }} and your repository is ${{ gitea.repository }}."
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - name: Install SSH keys
+        uses: shimataro/ssh-key-action@d4fffb50872869abe2d9a9098a6d9c5aa7d16be4
+        with:
+          key: ${{ secrets.SSH_GITEA_SSH_KEY }}
+          name: gitea_action
+          known_hosts: ${{ secrets.SSH_GITEA_KNOWN_HOSTS }}
+      - name: Agent SSH keys
+        uses: webfactory/ssh-agent@v0.9.0
+        with:
+          ssh-private-key: ${{ secrets.SSH_GITEA_SSH_KEY }}
+          # name: gitea_action
+          # known_hosts: ${{ secrets.SSH_GITEA_KNOWN_HOSTS }}
+          #- name: Fix SSH key
+          # run: sed -i 's/\r$//g' /root/.ssh/gitea_action
+      - name: List files in the repository
+        run: |
+          ls ${{ gitea.workspace }}
+      # installing nix not necessary for nix-runner but doesn't take much time
+      - name: Install Nix
+        uses: cachix/install-nix-action@v31
+      - run: nix build --version
+      - name: Setup Attic Cache
+        uses: ryanccn/attic-action@3354ae812cb672e1381be4c7914204c44db53866
+        with:
+          endpoint: ${{ secrets.ATTIC_ENDPOINT }}
+          cache: ${{ secrets.ATTIC_CACHE }}
+          token: ${{ secrets.ATTIC_TOKEN }}
+      - name: Build Nix Package
+        run: nix flake check
+      - run: echo "🎉 All done, have a great day!"