Revert "workflow: Comment build size on all PRs"

This reverts commit 012c3d25f3.

.github/workflows/main.yml

@@ -15,7 +15,7 @@ on:
 
 jobs:
   build-firmware:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     container:
       image: infinitime/infinitime-build
     outputs:
@@ -147,7 +147,6 @@ jobs:
 
   compare-build-size:
     if: github.event_name == 'pull_request'
-    name: 'Compare build size'
     needs: [build-firmware, get-base-ref-size]
     runs-on: ubuntu-latest
     steps:
@@ -182,19 +181,28 @@ jobs:
         echo "data_diff=$DATA_SIZE_DIFF" >> $GITHUB_OUTPUT
         echo "bss_diff=$BSS_SIZE_DIFF" >> $GITHUB_OUTPUT
 
-    - name: Write comment information to files
-      run: |
-        tee comment << EOF
+    - name: Find Comment
+      # Due to a security concern, comments can only be created in the context of branches in the repo.
+      # PRs from forks can't get the comment.
+      if: github.event.pull_request.head.repo.full_name == github.repository
+      uses: peter-evans/find-comment@v2
+      id: build-size-comment
+      with:
+        issue-number: ${{ github.event.pull_request.number }}
+        comment-author: 'github-actions[bot]'
+        body-includes: Build size and comparison to
+
+    - name: Create or update comment
+      if: github.event.pull_request.head.repo.full_name == github.repository
+      uses: peter-evans/create-or-update-comment@v2
+      with:
+        comment-id: ${{ steps.build-size-comment.outputs.comment-id }}
+        issue-number: ${{ github.event.pull_request.number }}
+        body: |
           Build size and comparison to ${{ github.base_ref }}:
           | Section | Size | Difference |
           | ------- | ---- | ---------- |
           | text    | ${{ needs.build-firmware.outputs.text_size }}B | ${{ steps.output-sizes-diff.outputs.text_diff }}B |
           | data    | ${{ needs.build-firmware.outputs.data_size }}B | ${{ steps.output-sizes-diff.outputs.data_diff }}B |
           | bss     | ${{ needs.build-firmware.outputs.bss_size }}B  | ${{ steps.output-sizes-diff.outputs.bss_diff }}B  |
-        EOF
-
-    - name: Upload comment
-      uses: actions/upload-artifact@v3
-      with:
-        name: comment
-        path: comment
+        edit-mode: replace

.github/workflows/pr-comment.yml

@@ -1,49 +0,0 @@
-# THIS WORKFLOW HAS WRITE PERMISSIONS TO THE REPO.
-# MAKE SURE IT NEVER RUNS ANY CODE FROM THE FORK
-
-name: PR comment
-
-on:
-  pull_request_target:
-    branches: [ develop ]
-    paths-ignore:
-      - 'doc/**'
-      - '**.md'
-
-jobs:
-  comment:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Wait for builds to finish
-      id: wait-for-build
-      uses: fountainhead/action-wait-for-check@297be350cf8393728ea4d4b39435c7d7ae167c93
-      with:
-        checkName: 'Compare build size'
-        token: ${{ secrets.GITHUB_TOKEN }}
-        ref: ${{ github.head_ref }}
-
-    - if: steps.wait-for-build.outputs.conclusion != 'success'
-      run: exit 1
-
-    - name: Download artifact
-      uses: dawidd6/action-download-artifact@bd10f381a96414ce2b13a11bfa89902ba7cea07f
-      with:
-        workflow: main.yml
-        pr: ${{ github.event.pull_request.number }}
-        name: comment
-
-    - name: Find Comment
-      id: find-comment
-      uses: peter-evans/find-comment@81e2da3af01c92f83cb927cf3ace0e085617c556
-      with:
-        issue-number: ${{ github.event.pull_request.number }}
-        comment-author: 'github-actions[bot]'
-        body-includes: Build size and comparison to
-
-    - name: Create or update comment
-      uses: peter-evans/create-or-update-comment@5adcb0bb0f9fb3f95ef05400558bdb3f329ee808
-      with:
-        comment-id: ${{ steps.find-comment.outputs.comment-id }}
-        issue-number: ${{ github.event.pull_request.number }}
-        body-file: comment
-        edit-mode: replace