Allow macOS job to fail without invalidating the whole action.

Author: Yarwin

.github/workflows/ci.yml

@@ -150,35 +150,41 @@ jobs:
       matrix:
         include:
           # macOS
-
+          # macOS x86 (intel) has tendency to fail semi-randomly.
+          # We allow this job to fail without invalidating the whole run.
           - name: macos-x86
             os: macos-13
             artifact-name: macos-x86-nightly
             godot-binary: godot.macos.editor.dev.x86_64
+            failable: true
 
           - name: macos-arm
             os: macos-latest
             artifact-name: macos-arm-nightly
             godot-binary: godot.macos.editor.dev.arm64
+            failable: false
 
           # Windows
 
           - name: windows
             os: windows-latest
             artifact-name: windows-nightly
             godot-binary: godot.windows.editor.dev.x86_64.exe
+            failable: false
 
           # Linux
 
           - name: linux
             os: ubuntu-22.04
             artifact-name: linux-nightly
             godot-binary: godot.linuxbsd.editor.dev.x86_64
+            failable: false
 
           - name: linux-4.4
             os: ubuntu-22.04
             artifact-name: linux-4.4
             godot-binary: godot.linuxbsd.editor.dev.x86_64
+            failable: false
 
           # Deliberately don't include:
           #
@@ -214,17 +220,25 @@ jobs:
         run: cargo build --release ${{ matrix.rust-extra-args }}
 
       - name: "Run examples for short time"
+        continue-on-error: ${{ matrix.failable }}
+        env:
+          FAILABLE: ${{ matrix.failable }}
         run: |
           # Enable extended globbing to allow pattern exclusion.
           shopt -s extglob
 
           # Match all directories/files except `target` and any starting with `.`.
           files='!(target|.*)/'
-
+          if [[ $FAILABLE == "true" ]]; then
+            # MacOS x86 – try to rerun demo projects several times on fail.
+            RUN="./.github/other/retry.sh ./.github/other/check-example.sh"
+          else
+            RUN="./.github/other/check-example.sh"
+          fi
           # List all folders in current directory. Don't quote $files variable.
           for demo in $files; do
             # Strip trailing '/' from folder name.
-          	./.github/other/check-example.sh "${demo%/}"
+          	$RUN "${demo%/}"
           done