Update nix-flake-update.yml

.github/workflows/nix-flake-update.yml

@@ -1,38 +1,21 @@
-name: "Update flakes"
+name: update-flake-lock
 on:
-  repository_dispatch:
-  workflow_dispatch:
+  workflow_dispatch: # allows manual triggering
   schedule:
-    - cron:  '10 4 * * 0'
+    - cron: '0 0 * * 0' # runs weekly on Sunday at 00:00
+
 jobs:
-  createPullRequest:
+  lockfile:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: cachix/install-nix-action@v20
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v1
+      - name: Update flake.lock
+        uses: DeterminateSystems/update-flake-lock@vX
         with:
-          install_url: https://github.com/numtide/nix-flakes-installer/releases/download/nix-2.4pre20210604_8e6ee1b/install
-          extra_nix_config: |
-            experimental-features = nix-command flakes
-      - name: Make changes to pull request
-        run: nix flake update
-      - name: Create Pull Request
-        id: cpr
-        uses: peter-evans/create-pull-request@v5
-        with:
-          commit-message: Update flakes
-          committer: GitHub <noreply@github.com>
-          author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
-          signoff: false
-          branch: flake-updates
-          delete-branch: true
-          title: 'Update flakes'
-          body: |
-            Update report
-            - Updated with *today's* date
-            - Auto-generated by [create-pull-request][1]
-            [1]: https://github.com/peter-evans/create-pull-request
-      - name: Check outputs
-        run: |
-          echo "Pull Request Number - ${{ steps.cpr.outputs.pull-request-number }}"
-          echo "Pull Request URL - ${{ steps.cpr.outputs.pull-request-url }}"
+          pr-title: "Update flake.lock" # Title of PR to be created
+          pr-labels: |                  # Labels to be set on the PR
+            dependencies
+            automated