[Chore] add cgo test for macos-12 and macos-13 (#34741)

**Description:** <Describe what has changed.>
In order to add CGO support, add compatibility test for old macos
versions.
Due macos-12 and macos-13 are using amd64 instead of arm64, cross
compiling is used.

**Link to tracking Issue:** <Issue number if applicable>
#33393 

**Testing:** <Describe what testing was performed and which tests were
added.>
Added tests for hostmetrics receiver for macos-12 and macos-13

**Documentation:** <Describe the documentation added.>

---------

Co-authored-by: Sean Marciniak <[email protected]>

Author: pureklkl

.github/workflows/build-and-test-darwin.yaml

@@ -0,0 +1,101 @@
+name: build-and-test-darwin
+on:
+  push:
+    branches: [main]
+    tags:
+      - "v[0-9]+.[0-9]+.[0-9]+*"
+  merge_group:
+  pull_request:
+    types: [opened, synchronize, reopened, labeled, unlabeled]
+    branches:
+      - main
+env:
+  TEST_RESULTS: testbed/tests/results/junit/results.xml
+  # Make sure to exit early if cache segment download times out after 2 minutes.
+  # We limit cache download as a whole to 5 minutes.
+  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 2
+  GOPROXY: https://goproxy1.cncf.selfactuated.dev,direct
+
+# Do not cancel this workflow on main. See https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/16616
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  darwin-build-unittest-binary:
+    if: ${{ github.actor != 'dependabot[bot]' && (contains(github.event.pull_request.labels.*.name, 'Run Darwin') || github.event_name == 'push' || github.event_name == 'merge_group') }}
+    runs-on: macos-14
+    timeout-minutes: 120
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: "~1.22.5"
+          cache: false
+      - name: Cache Go
+        id: go-cache
+        timeout-minutes: 5
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/go/bin
+            ~/go/pkg/mod
+          key: go-build-cache-${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+      - name: Install dependencies
+        if: steps.go-cache.outputs.cache-hit != 'true'
+        run: make -j2 gomoddownload
+      - name: Install Tools
+        if: steps.go-cache.outputs.cache-hit != 'true'
+        run: make install-tools
+      - name: Build test binaries
+        env:
+          GOTESTARCH: amd64
+        run: make gobuildtest GROUP=cgo
+      - name: Zip test binaries
+        run: zip -r testbinaries.zip  . --include \*builtunitetest.test
+      - uses: actions/upload-artifact@v4
+        with:
+          name: testbinaries
+          path: ./testbinaries.zip
+          retention-days: 1
+  darwin-unittest-matrix:
+    if: ${{ github.actor != 'dependabot[bot]' && (contains(github.event.pull_request.labels.*.name, 'Run Darwin') || github.event_name == 'push' || github.event_name == 'merge_group') }}
+    needs: [darwin-build-unittest-binary]
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-12, macos-13]
+    timeout-minutes: 30
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: "~1.22.5"
+          cache: false
+      - name: Install Tools
+        if: steps.go-cache.outputs.cache-hit != 'true'
+        run: make install-tools
+      - uses: actions/download-artifact@v4
+        with:
+          name: testbinaries
+      - name: Unzip binaries to each module
+        run: unzip testbinaries.zip
+      - name: Run Unit Tests
+        run: make -j2 gorunbuilttest GROUP=cgo
+  darwin-unittest:
+    if: ${{ github.actor != 'dependabot[bot]' && (contains(github.event.pull_request.labels.*.name, 'Run Darwin') || github.event_name == 'push' || github.event_name == 'merge_group') }}
+    runs-on: macos-latest
+    needs: [darwin-unittest-matrix]
+    steps:
+      - name: Print result
+        run: echo ${{ needs.darwin-unittest-matrix.result }}
+      - name: Interpret result
+        run: |
+          if [[ success == ${{ needs.darwin-unittest-matrix.result }} ]]
+          then
+            echo "All matrix jobs passed!"
+          else
+            echo "One or more matrix jobs failed."
+            false
+          fi

Makefile

@@ -51,6 +51,7 @@ CMD_MODS_1 := $(shell find ./cmd/[n-z]* $(FIND_MOD_ARGS) -not -path "./cmd/otel*
 CMD_MODS := $(CMD_MODS_0) $(CMD_MODS_1)
 OTHER_MODS := $(shell find . $(EX_COMPONENTS) $(EX_INTERNAL) $(EX_PKG) $(EX_CMD) $(FIND_MOD_ARGS) -exec $(TO_MOD_DIR) ) $(PWD)
 ALL_MODS := $(RECEIVER_MODS) $(PROCESSOR_MODS) $(EXPORTER_MODS) $(EXTENSION_MODS) $(CONNECTOR_MODS) $(INTERNAL_MODS) $(PKG_MODS) $(CMD_MODS) $(OTHER_MODS)
+CGO_MODS := ./receiver/hostmetricsreceiver 
 
 FIND_INTEGRATION_TEST_MODS={ find . -type f -name "*integration_test.go" & find . -type f -name "*e2e_test.go" -not -path "./testbed/*"; }
 INTEGRATION_MODS := $(shell $(FIND_INTEGRATION_TEST_MODS) | xargs $(TO_MOD_DIR) | uniq)
@@ -135,6 +136,14 @@ gotest-with-cover:
 	@$(MAKE) $(FOR_GROUP_TARGET) TARGET="test-with-cover"
 	$(GOCMD) tool covdata textfmt -i=./coverage/unit -o ./$(GROUP)-coverage.txt
 
+.PHONY: gobuildtest
+gobuildtest:
+	$(MAKE) $(FOR_GROUP_TARGET) TARGET="buildtest"
+
+.PHONY: gorunbuilttest
+gorunbuilttest:
+	$(MAKE) $(FOR_GROUP_TARGET) TARGET="runbuilttest"
+
 .PHONY: gointegration-test
 gointegration-test:
 	$(MAKE) $(FOR_GROUP_TARGET) TARGET="mod-integration-test"
@@ -260,6 +269,9 @@ for-other-target: $(OTHER_MODS)
 .PHONY: for-integration-target
 for-integration-target: $(INTEGRATION_MODS)
 
+.PHONY: for-cgo-target
+for-cgo-target: $(CGO_MODS)
+
 # Debugging target, which helps to quickly determine whether for-all-target is working or not.
 .PHONY: all-pwd
 all-pwd:
@@ -539,6 +551,8 @@ clean:
 	find . -type f -name 'coverage.out' -delete
 	find . -type f -name 'integration-coverage.txt' -delete
 	find . -type f -name 'integration-coverage.html' -delete
+	@echo "Removing built binary files"
+	find . -type f -name 'builtunitetest.test' -delete
 
 .PHONY: generate-gh-issue-templates
 generate-gh-issue-templates:

Makefile.Common

@@ -36,6 +36,7 @@ GOTEST_OPT_WITH_INTEGRATION_COVERAGE=$(GOTEST_OPT_WITH_INTEGRATION) -coverprofil
 GOCMD?= go
 GOOS=$(shell $(GOCMD) env GOOS)
 GOARCH=$(shell $(GOCMD) env GOARCH)
+GOTESTARCH?=$(GOARCH)
 
 # In order to help reduce toil related to managing tooling for the open telemetry collector
 # this section of the makefile looks at only requiring command definitions to be defined
@@ -140,6 +141,18 @@ do-unit-tests-with-cover: $(GOTESTSUM)
 	$(GOTESTSUM) $(GOTESTSUM_OPT) --packages="./..." -- $(GOTEST_OPT_WITH_COVERAGE)
 	$(GOCMD) tool cover -html=coverage.txt -o coverage.html
 
+.PHONY: buildtest
+buildtest:
+ifneq (,$(wildcard ./*.go))
+	GOARCH=$(GOTESTARCH) CGO_ENABLED=1 $(GOCMD) test -c -o builtunitetest.test
+endif
+
+.PHONY: runbuilttest
+runbuilttest: $(GOTESTSUM)
+ifneq (,$(wildcard ./builtunitetest.test))
+	$(GOTESTSUM) --raw-command -- $(GOCMD) tool test2json -p "./..." -t ./builtunitetest.test -test.v -test.failfast -test.timeout $(GOTEST_TIMEOUT)
+endif	
+
 .PHONY: mod-integration-test
 mod-integration-test: $(GOTESTSUM)
 	@echo "running $(GOCMD) integration test ./... in `pwd`"