Fix screenshot comparison (#15894)

# Objective

- After merging #13248 the new upload job fails

## Solution

- Fix the file path
- Instead of a pull_request_target workflow, keep the examples in the
pull_request workflow and add another job that will run once its all
completed on a `workflow_run` event to upload screenshots

## Testing

- Tested in a ubuntu docker container, running the exact same script
- Manual result:
https://pixel-eagle.com/project/B04F67C0-C054-4A6F-92EC-F599FEC2FD1D/run/5/compare/2
- The CI on this job will still fail as its using the job from main

.github/workflows/ci-comment-failures.yml

@@ -178,3 +178,51 @@ jobs:
               issue_number: issue_number,
               body: 'Your PR increases Bevy Minimum Supported Rust Version. Please update the `rust-version` field in the root Cargo.toml file.'
             });
+
+  make-macos-screenshots-available:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: 'Download artifact'
+        id: find-artifact
+        uses: actions/github-script@v7
+        with:
+          result-encoding: string
+          script: |
+            var artifacts = await github.rest.actions.listWorkflowRunArtifacts({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              run_id: ${{github.event.workflow_run.id }},
+            });
+            var matchArtifacts = artifacts.data.artifacts.filter((artifact) => {
+              return artifact.name == "screenshots-macos"
+            });
+            if (matchArtifacts.length == 0) { return "false" }
+            var matchArtifact = matchArtifacts[0];
+            var download = await github.rest.actions.downloadArtifact({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              artifact_id: matchArtifact.id,
+              archive_format: 'zip',
+            });
+            var fs = require('fs');
+            fs.writeFileSync('${{github.workspace}}/screenshots-macos.zip', Buffer.from(download.data));
+            return "true"
+      - run: unzip screenshots-macos.zip
+      - name: save screenshots
+        uses: actions/upload-artifact@v4
+        with:
+          name: screenshots-macos
+          path: screenshots-macos
+
+
+  compare-macos-screenshots:
+    name: Compare macOS screenshots
+    needs: [make-macos-screenshots-available]
+    uses: ./.github/workflows/send-screenshots-to-pixeleagle.yml
+    with:
+      commit: ${{ github.event.workflow_run.event.sha }}
+      branch: ${{ github.event.workflow_run.event.ref_name }}
+      artifact: screenshots-macos
+      os: macos
+    secrets: inherit

.github/workflows/ci-examples.yml

@@ -1,77 +0,0 @@
-name: CI  - examples
-
-on:
-  merge_group:
-  pull_request_target:
-  push:
-    branches:
-      - main
-      - release-*
-
-# Unlike jobs in ci.yml, jobs in this workflow can access secrets. Their definitions are taken from the base branch of a PR, not from the PR itself.
-
-env:
-  CARGO_TERM_COLOR: always
-  # If nightly is breaking CI, modify this variable to target a specific nightly version.
-  NIGHTLY_TOOLCHAIN: nightly
-
-concurrency:
-  group: ${{github.workflow}}-${{github.ref}}-examples
-  cancel-in-progress: ${{github.event_name == 'pull_request_target'}}
-
-jobs:
-  run-examples-macos-metal:
-    # Explicity use macOS 14 to take advantage of M1 chip.
-    runs-on: macos-14
-    timeout-minutes: 30
-    steps:
-      - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
-      - name: Disable audio
-        # Disable audio through a patch. on github m1 runners, audio timeouts after 15 minutes
-        run: git apply --ignore-whitespace tools/example-showcase/disable-audio.patch
-      - name: Build bevy
-        # this uses the same command as when running the example to ensure build is reused
-        run: |
-          TRACE_CHROME=trace-alien_cake_addict.json CI_TESTING_CONFIG=.github/example-run/alien_cake_addict.ron cargo build --example alien_cake_addict --features "bevy_ci_testing,trace,trace_chrome"
-      - name: Run examples
-        run: |
-          for example in .github/example-run/*.ron; do
-            example_name=`basename $example .ron`
-            echo -n $example_name > last_example_run
-            echo "running $example_name - "`date`
-            time TRACE_CHROME=trace-$example_name.json CI_TESTING_CONFIG=$example cargo run --example $example_name --features "bevy_ci_testing,trace,trace_chrome"
-            sleep 10
-            if [ `find ./ -maxdepth 1 -name 'screenshot-*.png' -print -quit` ]; then
-              mkdir screenshots-$example_name
-              mv screenshot-*.png screenshots-$example_name/
-            fi
-          done
-          mkdir traces && mv trace*.json traces/
-          mkdir screenshots && mv screenshots-* screenshots/
-      - name: save traces
-        uses: actions/upload-artifact@v4
-        with:
-          name: example-traces-macos
-          path: traces
-      - name: save screenshots
-        uses: actions/upload-artifact@v4
-        with:
-          name: screenshots-macos
-          path: screenshots
-      - uses: actions/upload-artifact@v4
-        if: ${{ failure() && github.event_name == 'pull_request' }}
-        with:
-          name: example-run-macos
-          path: example-run/
-
-  compare-macos-screenshots:
-    name: Compare macOS screenshots
-    needs: [run-examples-macos-metal]
-    uses: ./.github/workflows/send-screenshots-to-pixeleagle.yml
-    with:
-      commit: ${{ github.sha }}
-      branch: ${{ github.ref_name }}
-      artifact: screenshots-macos
-      os: macos
-    secrets: inherit

.github/workflows/ci.yml

@@ -253,6 +253,51 @@ jobs:
           echo 'if you use VSCode, you can also install `Typos Spell Checker'
           echo 'You can find the extension here: https://marketplace.visualstudio.com/items?itemName=tekumara.typos-vscode'
 
+  run-examples-macos-metal:
+    # Explicity use macOS 14 to take advantage of M1 chip.
+    runs-on: macos-14
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - name: Disable audio
+        # Disable audio through a patch. on github m1 runners, audio timeouts after 15 minutes
+        run: git apply --ignore-whitespace tools/example-showcase/disable-audio.patch
+      - name: Build bevy
+        # this uses the same command as when running the example to ensure build is reused
+        run: |
+          TRACE_CHROME=trace-alien_cake_addict.json CI_TESTING_CONFIG=.github/example-run/alien_cake_addict.ron cargo build --example alien_cake_addict --features "bevy_ci_testing,trace,trace_chrome"
+      - name: Run examples
+        run: |
+          for example in .github/example-run/*.ron; do
+            example_name=`basename $example .ron`
+            echo -n $example_name > last_example_run
+            echo "running $example_name - "`date`
+            time TRACE_CHROME=trace-$example_name.json CI_TESTING_CONFIG=$example cargo run --example $example_name --features "bevy_ci_testing,trace,trace_chrome"
+            sleep 10
+            if [ `find ./ -maxdepth 1 -name 'screenshot-*.png' -print -quit` ]; then
+              mkdir screenshots-$example_name
+              mv screenshot-*.png screenshots-$example_name/
+            fi
+          done
+          mkdir traces && mv trace*.json traces/
+          mkdir screenshots && mv screenshots-* screenshots/
+      - name: save traces
+        uses: actions/upload-artifact@v4
+        with:
+          name: example-traces-macos
+          path: traces
+      - name: save screenshots
+        uses: actions/upload-artifact@v4
+        with:
+          name: screenshots-macos
+          path: screenshots
+      - uses: actions/upload-artifact@v4
+        if: ${{ failure() && github.event_name == 'pull_request' }}
+        with:
+          name: example-run-macos
+          path: example-run/
+        
   check-doc:
     runs-on: ubuntu-latest
     timeout-minutes: 30

.github/workflows/send-screenshots-to-pixeleagle.yml

@@ -60,7 +60,7 @@ jobs:
             while IFS=$'\t' read -r name; do
               name=`echo $name | tr -d '"'`
               echo "Uploading $name"
-              curl https://pixel-eagle.vleue.com/$project/runs/$run/screenshots -F "data=@./$name" -F "screenshot=$name" --oauth2-bearer ${{ secrets.PIXELEAGLE_TOKEN }}
+              curl https://pixel-eagle.vleue.com/$project/runs/$run/screenshots -F "data=@./screenshots-$name" -F "screenshot=$name" --oauth2-bearer ${{ secrets.PIXELEAGLE_TOKEN }}
               echo
             done