conditional push

.github/workflows/flake-update.yml

@@ -8,7 +8,7 @@ on:
       paths:
         - '.github/workflows/*'
 jobs:
-    update_lockfile:
+    download-binary:
         runs-on: ubuntu-latest
         if: github.ref == 'refs/heads/main' # ensure workflow_dispatch only runs on main
         steps:
@@ -33,11 +33,17 @@ jobs:
                 binary_name=$(echo $final_url | sed -E -e 's/.*\/(.*)/\1/g')
                 echo "DETERMINATE_BINARY=$(echo $binary_name)" | tee -a $GITHUB_ENV
             - name: Download binary
+              id: download-binary
               run: |
                 wget --content-disposition -nv "$DETERMINATE_URL"
 
+                git diff --quiet
+                echo "new_binary=$?" >> "$GITHUB_OUTPUT"
               env:
                 DETERMINATE_URL: ${{ env.DETERMINATE_URL }}
+    update-tags:
+        if: steps.download-binary.outputs.new_binary != 0
+        steps:
             - name: Git config
               run: |
                 git config user.name github-actions
@@ -73,92 +79,6 @@ jobs:
                 target_commitish_value: ${{ env.COMMIT_ID }}
                 sha256sum: true
                 md5sum: false
-
-            #- name: Update flake.lock
-            #  id: update
-            #  run: |
-            #    nix flake update 2> >(tee /dev/stderr) | awk '
-            #      /^• Updated input/ {in_update = 1; print; next}
-            #      in_update && !/^warning:/ {print}
-            #      /^$/ {in_update = 0}
-            #    ' > update.log
-
-            #    echo "UPDATE_LOG<<EOF" >> $GITHUB_ENV
-            #    cat update.log >> $GITHUB_ENV
-            #    echo "EOF" >> $GITHUB_ENV
-
-            #    rm update.log
-            #- name: Get post-snapshot of evaluations
-            #  run: nix ./utils/eval-to-drv.sh post
-            #- name: Calculate diff
-            #  run: nix ./utils/diff-evals.sh
-            #- name: Read file contents
-            #  id: read_file
-            #  uses: guibranco/github-file-reader-action-v2@latest
-            #  with:
-            #    path: "post-diff"
-            #- name: Write PR body template
-            #  uses: https://github.com/DamianReeves/write-file-action@v1.3
-            #  with:
-            #    path: pr_body.template
-            #    contents: |
-            #        - The following Nix Flake inputs were updated:
-
-            #        ```
-            #        ${{ env.UPDATE_LOG }}
-            #        ```
-
-            #        ```
-            #        ${{ steps.read_file.outputs.contents }}
-            #        ```
-
-            #        Auto-generated by [update.yml][1] with the help of
-            #        [create-pull-request][2].
-
-            #        [1]: https://nayeonie.com/ahuston-0/nix-dotfiles/src/branch/main/.github/workflows/flake-update.yml
-            #        [2]: https://forgejo.stefka.eu/jiriks74/create-pull-request
-            #- name: Generate PR body
-            #  uses: pedrolamas/handlebars-action@v2.4.0 # v2.4.0
-            #  with:
-            #    files: "pr_body.template"
-            #    output-filename: "pr_body.md"
-            #- name: Save PR body
-            #  id: pr_body
-            #  uses: juliangruber/read-file-action@v1
-            #  with:
-            #    path: "pr_body.md"
-            #- name: Remove temporary files
-            #  run: |
-            #    rm pr_body.template
-            #    rm pr_body.md
-            #    rm pre.json
-            #    rm post.json
-            #    rm post-diff
-            #- name: Create Pull Request
-            #  id: create-pull-request
-            #  # uses: https://forgejo.stefka.eu/jiriks74/create-pull-request@7174d368c2e4450dea17b297819eb28ae93ee645
-            #  uses: https://nayeonie.com/ahuston-0/create-pull-request@main
-            #  with:
-            #    token: ${{ secrets.GH_TOKEN_FOR_UPDATES  }}
-            #    body: ${{ steps.pr_body.outputs.content }}
-            #    author: '"github-actions[bot]" <github-actions[bot]@users.noreply.github.com>'
-            #    title: 'automated: Update `flake.lock`'
-            #    commit-message: |
-            #        automated: Update `flake.lock`
-
-            #        ${{ steps.pr_body.outputs.content }}
-            #    branch: update-flake-lock
-            #    delete-branch: true
-            #    pr-labels: | # Labels to be set on the PR
-            #        dependencies
-            #        automated
-            #- name: Push to Attic
-            #  run: nix ./utils/attic-push.bash
-            #  continue-on-error: true
-            #- name: Print PR number
-            #  run: |
-            #    echo "Pull request number is ${{ steps.create-pull-request.outputs.pull-request-number }}."
-            #    echo "Pull Request URL - ${{ steps.cpr.outputs.pull-request-url }}"
 permissions:
     pull-requests: write
     contents: write