Darwin CI: use macos-13 runners and other tweaks (#32748)

* Darwin CI: use macos-13 runners and other tweaks

According to github docs these have 4 CPUs (vs 3 for macos-12 == latest).
In practice compile steps seem to be about 7% faster.

Also use the pre-installed Python (3.12), remove the "aggregation" step, and
run crash log collection after failure (not success), and condense disk space
output to large directories only.

* CI: Save bootstrap cache right after bootrap

This avoids caching a corrupted cache in cases where a job modifies the
environment (e.g. the Darwin job hiding zap-cli). It also makes the cache
available slightly sooner.

Also add plumbing for splitting caches over buildjet and github backends.

* Remove zap-cli restore workaround

* Update darwin-tests workflow as well

.github/actions/bootstrap/action.yaml

@@ -12,49 +12,66 @@ inputs:
 outputs:
   cache-hit:
     description: "Bootstrap environment was restored from cache"
-    value: ${{ fromJSON(steps.bootstrap-cache.outputs.outputs).cache-hit }} # retry returns all outputs in `outputs`
+    value: ${{ fromJSON(steps.restore.outputs.outputs).cache-hit }} # dynamic action returns all outputs in `outputs`
 
 runs:
   using: "composite"
   steps:
-    - name: Calculate bootstrap cache key
-      id: bootstrap-cache-key
+    - name: Determine bootstrap cache configuration
+      id: prepare
       shell: bash
       run: |
-        # Calculate bootstrap cache key
+        # Determine bootstrap cache configuration
         # In addition to the various setup files, the work directory matters as well,
         # because the bootstrapped Pigweed environment contains absolute paths.
+        echo "Calculating bootstrap cache key for '$PWD'"
         FILES_HASH="${{ hashFiles('scripts/setup/*', 'third_party/pigweed/**') }}"
         FINAL_HASH="$(echo "$PWD:$FILES_HASH" | shasum -a 256 | cut -d' ' -f1)"
-        echo "Calculated bootstrap cache key for '$PWD': $FINAL_HASH"
-        echo "hash=$FINAL_HASH" >> "$GITHUB_OUTPUT"
+        echo key="${RUNNER_OS}-${RUNNER_ARCH}-${{ inputs.platform }}-${FINAL_HASH}" | tee -a "$GITHUB_OUTPUT"
 
-    - uses: Wandalen/[email protected]
-      name: Bootstrap from cache
-      id: bootstrap-cache
+        # Split caches across backends
+        case "$RUNNER_OS" in
+          macOS) echo backend=actions;;
+          *)     echo backend=buildjet;;
+        esac | tee -a "$GITHUB_OUTPUT"
+
+    - name: Bootstrap from cache
+      id: restore
+      uses: ./.github/actions/dynamic
       continue-on-error: true
       with:
-        action: buildjet/cache@v4
-        attempt_limit: 3
-        attempt_delay: 2000
+        action: ${{ steps.prepare.outputs.backend }}/cache/restore@v4
         with: |
-          key: ${{ runner.os }}-${{ runner.arch }}-${{ inputs.platform }}-${{ steps.bootstrap-cache-key.outputs.hash}}
+          key: ${{ steps.prepare.outputs.key }}
           path: |
-              .environment
-              build_overrides/pigweed_environment.gni
+            .environment
+            build_overrides/pigweed_environment.gni
 
     - name: Run bootstrap
-      if: fromJSON(steps.bootstrap-cache.outputs.outputs).cache-hit != 'true'
+      if: ${{ fromJSON(steps.restore.outputs.outputs).cache-hit != 'true' }}
       env:
-        PW_NO_CIPD_CACHE_DIR: Y
+        PW_NO_CIPD_CACHE_DIR: 1
+        PW_ENVSETUP_NO_BANNER: 1
       shell: bash
       run: source scripts/bootstrap.sh -p all,${{ inputs.platform }}
 
-    - name: Uploading bootstrap logs
+    - name: Save bootstrap cache
+      uses: ./.github/actions/dynamic
+      if: ${{ fromJSON(steps.restore.outputs.outputs).cache-hit != 'true' }}
+      continue-on-error: true
+      with:
+        action: ${{ steps.prepare.outputs.backend }}/cache/save@v4
+        with: |
+          key: ${{ steps.prepare.outputs.key }}
+          path: |
+            .environment
+            build_overrides/pigweed_environment.gni
+
+    - name: Upload bootstrap logs
       uses: actions/upload-artifact@v4
-      if: always() && !env.ACT && fromJSON(steps.bootstrap-cache.outputs.outputs).cache-hit != 'true'
+      if: ${{ always() && !env.ACT && fromJSON(steps.restore.outputs.outputs).cache-hit != 'true' }}
       with:
         name: ${{ inputs.bootstrap-log-name }}
         path: |
-          .environment/gn_out/.ninja_log
-          .environment/pigweed-venv/*.log
+            .environment/gn_out/.ninja_log
+            .environment/pigweed-venv/*.log

.github/actions/dynamic/action.yaml

@@ -0,0 +1,38 @@
+name: Dynamic
+description: Dynamically resolves another GitHub action
+inputs:
+  action:
+    description: Action reference
+    required: true
+  with:
+    description: Action inputs as multi-line YAML string
+    required: false
+    default: ""
+outputs:
+  outputs:
+    description: JSON object of outputs from the action
+    value: ${{ steps.run.outputs.outputs }}
+runs:
+  using: composite
+  steps:
+    - name: Instantiate
+      shell: bash
+      run: |
+        # Dynamically invoke ${{ inputs.action }}
+        with='${{ inputs.with }}'
+        [[ -z "$with" ]] || with="$(echo '    with:'; sed -e 's/^/      /' <<<"$with")"
+        mkdir -p ./.tmp/dynamic-action-instance
+        cat <<END >./.tmp/dynamic-action-instance/action.yaml
+        runs:
+          using: composite
+          steps:
+          - id: run
+            uses: ${{ inputs.action }}
+        $with
+        outputs:
+          outputs:
+            value: $(echo '$'){{ toJSON(steps.run.outputs) }}
+        END
+    - name: Run
+      id: run
+      uses: ./.tmp/dynamic-action-instance

.github/workflows/darwin-tests.yaml

@@ -49,7 +49,7 @@ jobs:
             LSAN_OPTIONS: detect_leaks=1 malloc_context_size=40 suppressions=scripts/tests/chiptest/lsan-mac-suppressions.txt
 
         if: github.actor != 'restyled-io[bot]'
-        runs-on: macos-latest
+        runs-on: macos-13
 
         steps:
             - name: Checkout

.github/workflows/darwin.yaml

@@ -31,7 +31,7 @@ jobs:
     framework:
         name: Build framework
         if: github.actor != 'restyled-io[bot]'
-        runs-on: macos-latest
+        runs-on: macos-13
         strategy:
             matrix:
                 options: # We don't need a full matrix
@@ -48,30 +48,28 @@ jobs:
         steps:
             - name: Checkout
               uses: actions/checkout@v4
-            - name: Setup Environment
-              run: brew install [email protected]
             - name: Checkout submodules & Bootstrap
               uses: ./.github/actions/checkout-submodules-and-bootstrap
               with:
                 platform: darwin
                 bootstrap-log-name: bootstrap-logs-framework-${{ matrix.options.flavor }}
             - name: Block zap-cli from being used
+              env:
+                PW_ENVSETUP_NO_BANNER: 1
               run: |
                 # Framework builds are NOT expected to require zap-cli
-                scripts/run_in_build_env.sh 'D=$(dirname $(which zap-cli)) && mv $D/zap-cli $D/zap-cli.moved'
+                scripts/run_in_build_env.sh 'rm -- "$(which zap-cli)"'
                 # run_in_build_env.sh is used to ensure PATH is set to something that would otherwise find zap-cli
                 scripts/run_in_build_env.sh '(zap-cli --version && exit 1) || exit 0'
             - name: Build
               working-directory: src/darwin/Framework
               run: xcodebuild -target "Matter" ${{ matrix.options.arguments }}
-            # Now restore zap-cli, so that bootstrap caching does not cache the state when it's been renamed.
-            - name: Make zap-cli work again
-              run: scripts/run_in_build_env.sh 'D=$(dirname $(which zap-cli.moved)) && mv $D/zap-cli.moved $D/zap-cli'
 
     tests:
         name: Run framework tests
         if: github.actor != 'restyled-io[bot]'
-        runs-on: macos-latest
+        needs: [ framework ] # serialize to avoid running to many parallel macos runners
+        runs-on: macos-13
         strategy:
             matrix:
                 options: # We don't need a full matrix
@@ -85,8 +83,6 @@ jobs:
         steps:
             - name: Checkout
               uses: actions/checkout@v4
-            - name: Setup Environment
-              run: brew install [email protected]
             - name: Checkout submodules & Bootstrap
               uses: ./.github/actions/checkout-submodules-and-bootstrap
               with:
@@ -120,6 +116,7 @@ jobs:
                     OTHER_CFLAGS='${inherited} -Werror -Wconversion' CHIP_IS_BLE=NO GCC_PREPROCESSOR_DEFINITIONS='${inherited} MTR_NO_AVAILABILITY=1 ${{ matrix.options.defines }}' \
                     > >(tee /tmp/darwin/framework-tests/darwin-tests.log) 2> >(tee /tmp/darwin/framework-tests/darwin-tests-err.log >&2)
             - name: Collect crash logs
+              if: failure() && !env.ACT
               run: |
                   mkdir -p /tmp/darwin/framework-tests
                   find ~/Library/Developer/Xcode/DerivedData /Library/Logs/DiagnosticReports -name '*.ips' -print0 | xargs -0 -J % cp % /tmp/darwin/framework-tests
@@ -134,24 +131,15 @@ jobs:
     tv-casting-bridge:
         name: Build TV Casting Bridge example
         if: github.actor != 'restyled-io[bot]'
-        runs-on: macos-latest
+        needs: [ framework ] # serialize to avoid running to many parallel macos runners
+        runs-on: macos-13
         steps:
             - name: Checkout
               uses: actions/checkout@v4
-            - name: Setup Environment
-              run: brew install [email protected]
             - name: Checkout submodules & Bootstrap
               uses: ./.github/actions/checkout-submodules-and-bootstrap
               with:
                 platform: darwin
             - name: Build
               working-directory: examples/tv-casting-app/darwin/MatterTvCastingBridge
               run: xcodebuild -target "MatterTvCastingBridge" -sdk iphoneos
-
-    darwin:
-        name: Build Darwin # Matches the previous monolithic build that's marked "required" for PRs
-        needs: [ framework, tests ]
-        runs-on: macos-latest
-        steps:
-            - name: Done
-              run: 'true' # nothing to do

scripts/dump_diskspace_info.sh

@@ -36,7 +36,7 @@ echo
 echo "Storage Space Used By Key Directories:"
 for directory in "${listOfDirectories[@]}"; do
     if [ -d "$directory" ]; then
-        du -d1 -h "$directory" | sort -h
+        du -d1 -h "$directory" | grep '^[[:space:]]*[0-9.]*[MG][[:space:]]' | sort -rh
         echo
     fi
 done