feat: support CGO_ENABLED=0 - see notes

users now required to set PACT_LD_LIBRARY_PATH env var with
location of download pact ffi lib.

It can exist anywhere on the filesystem

.github/workflows/test.yml

@@ -7,9 +7,8 @@ env:
   REACT_APP_API_BASE_URL: http://localhost:8080
   APP_SHA: ${{ github.sha }}
   APP_REF: ${{ github.ref }}
-  LD_LIBRARY_PATH: /tmp
-  PACT_GO_LIB_DOWNLOAD_PATH: /tmp
-  LOG_LEVEL: debug
+  PACT_LD_LIBRARY_PATH: /tmp
+  LOG_LEVEL: DEBUG
   COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
 jobs:
@@ -26,6 +25,7 @@ jobs:
                     1.22.x,
                     ]
         os: [ubuntu-latest, macos-12, macos-14, windows-latest]
+        cgo: [0,1]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout code
@@ -38,6 +38,14 @@ jobs:
         with:
           distribution: 'zulu'
           java-version: '17'
+      - name: "Set CGO_ENABLED: ${{ matrix.cgo }}"
+        if: matrix.os == 'windows-latest'
+        run: |
+          "CGO_ENABLED=${{ matrix.cgo }}" >> $env:GITHUB_ENV
+      - name: "Set CGO_ENABLED: ${{ matrix.cgo }}"
+        if: matrix.os != 'windows-latest'
+        run: |
+          echo "CGO_ENABLED=${{ matrix.cgo }}" >> $GITHUB_ENV
       - if: matrix.os == 'macos-14'
         run: brew install protobuf
       - name: Test
@@ -62,24 +70,26 @@ jobs:
         run: goveralls -coverprofile=coverage.txt -service=github -parallel
       - uses: actions/upload-artifact@v4
         with:
-          name: logs-${{ github.job }}-${{ github.run_id }}-${{ github.run_attempt }}-${{ matrix.go-version }}-${{ matrix.os }}.zip
+          name: logs-${{ github.job }}-${{ github.run_id }}-${{ github.run_attempt }}-${{ matrix.go-version }}-${{ matrix.os }}-${{matrix.cgo}}.zip
           path: ~/.pact/plugins/**/plugin.log
         if: ${{ always() }}
 
   test-containers:
     runs-on: ubuntu-latest
-    name: ${{ matrix.go-version }}-test-container
+    name: ${{ matrix.go-version }}-test-container-cgo-${{ matrix.cgo }}
     strategy:
       fail-fast: false
       matrix:
         go-version: ["1.21", "1.22"]
+        cgo: [0,1]
     steps:
       - uses: actions/checkout@v4
 
       - name: Test dockerfile 
         run: make docker_test_all
         env:
           GO_VERSION: ${{ matrix.go-version }}
+          CGO_ENABLED: ${{ matrix.cgo }}
 
   finish:
     needs: [test,test-containers]

Makefile

@@ -16,6 +16,16 @@ ifeq ($(OS),Windows_NT)
 	PACT_DOWNLOAD_DIR=$$TMP
 endif
 
+CGO_ENABLED?=1
+ifeq ($(CGO_ENABLED),0)
+	SKIP_RACE=true
+endif
+SKIP_RACE?=false
+RACE?=-race
+SKIP_SIGNAL_HANDLERS?=false
+ifeq ($(SKIP_RACE),true)
+	RACE=
+endif
 # Run the ci target from a developer machine with the environment variables
 # set as if it was on Travis CI.
 # Use this for quick feedback when playing around with your workflows.
@@ -41,18 +51,24 @@ docker_build:
 docker_test: docker_build
 	docker run \
 		-e LOG_LEVEL=INFO \
+		-e CGO_ENABLED=$(CGO_ENABLED) \
+		-e PACT_LD_LIBRARY_PATH=$(PACT_DOWNLOAD_DIR) \
 		--rm \
 		pactfoundation/pact-go-test \
 		/bin/sh -c "make test"
 docker_pact: docker_build
 	docker run \
 		-e LOG_LEVEL=INFO \
+		-e CGO_ENABLED=$(CGO_ENABLED) \
+		-e PACT_LD_LIBRARY_PATH=$(PACT_DOWNLOAD_DIR) \
 		--rm \
 		pactfoundation/pact-go-test \
 		/bin/sh -c "make pact_local"
 docker_test_all: docker_build
 	docker run \
 		-e LOG_LEVEL=INFO \
+		-e CGO_ENABLED=$(CGO_ENABLED) \
+		-e PACT_LD_LIBRARY_PATH=$(PACT_DOWNLOAD_DIR) \
 		--rm \
 		pactfoundation/pact-go-test \
 		/bin/sh -c "make test && make pact_local"
@@ -130,7 +146,7 @@ test: deps install
 	@echo "mode: count" > coverage.txt
 	@for d in $$(go list ./... | grep -v vendor | grep -v examples); \
 		do \
-			go test -v -race -coverprofile=profile.out -covermode=atomic $$d; \
+			go test -v $(RACE) -coverprofile=profile.out -covermode=atomic $$d; \
 			if [ $$? != 0 ]; then \
 				exit 1; \
 			fi; \

go.mod

@@ -3,13 +3,15 @@ module github.com/pact-foundation/pact-go/v2
 go 1.21
 
 require (
+	github.com/ebitengine/purego v0.7.1
 	github.com/golang/protobuf v1.5.4
 	github.com/hashicorp/go-version v1.7.0
 	github.com/hashicorp/logutils v1.0.0
 	github.com/linkedin/goavro/v2 v2.13.0
 	github.com/spf13/afero v1.11.0
 	github.com/spf13/cobra v1.8.1
 	github.com/stretchr/testify v1.8.4
+	golang.org/x/sys v0.21.0
 	google.golang.org/grpc v1.66.0
 	google.golang.org/protobuf v1.34.2
 	gopkg.in/yaml.v2 v2.4.0
@@ -24,7 +26,6 @@ require (
 	github.com/rogpeppe/go-internal v1.9.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	golang.org/x/net v0.26.0 // indirect
-	golang.org/x/sys v0.21.0 // indirect
 	golang.org/x/text v0.16.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240604185151-ef581f913117 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect

go.sum

@@ -3,6 +3,8 @@ github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ3
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/ebitengine/purego v0.7.1 h1:6/55d26lG3o9VCZX8lping+bZcmShseiqlh2bnUDiPA=
+github.com/ebitengine/purego v0.7.1/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ=
 github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
 github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=

installer/installer_test.go

@@ -18,7 +18,7 @@ func TestNativeLibPath(t *testing.T) {
 	libFilePath := filepath.Join(lib, "lib.go")
 	file, err := os.ReadFile(libFilePath)
 	assert.NoError(t, err)
-	assert.Contains(t, string(file), "-lpact_ffi")
+	assert.Contains(t, string(file), "libpact_ffi")
 }
 
 // 1. Be able to specify the path of the binary in advance