Cross-compile macOS and Windows builds (#89)

Adds support for cross-compiling macOS and Windows builds with cgo (using https://github.com/techknowlogick/xgo).

Closes #41

Dockerfile

@@ -1,27 +1,34 @@
 # build image
-FROM golang:1.12-stretch as build
+FROM techknowlogick/xgo:go-1.13.x as build
+WORKDIR /src
+ENTRYPOINT []
+CMD ["/bin/bash"]
 
-# required to force cgo (for sqlite driver) with cross compile
+# enable cgo to build sqlite
 ENV CGO_ENABLED 1
 
 # install database clients
 RUN apt-get update \
-	&& apt-get install -y --no-install-recommends \
-		default-mysql-client \
+	&& apt-get install -qq --no-install-recommends \
+		curl \
+		mysql-client \
 		postgresql-client \
 		sqlite3 \
 	&& rm -rf /var/lib/apt/lists/*
 
-# development dependencies
-RUN curl -fsSL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh \
-	| sh -s v1.16.0
+# golangci-lint
+RUN curl -fsSL -o /tmp/lint-install.sh https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh \
+	&& chmod +x /tmp/lint-install.sh \
+	&& /tmp/lint-install.sh -b /usr/local/bin v1.18.0 \
+	&& rm -f /tmp/lint-install.sh
 
-# copy source files
-COPY . /src
-WORKDIR /src
+# download modules
+COPY go.* ./
+RUN go mod download
 
 # build
-RUN make build
+COPY . ./
+RUN make build-linux
 
 # runtime image
 FROM gcr.io/distroless/base

Makefile

@@ -1,5 +1,4 @@
-DC := docker-compose
-BUILD_FLAGS := -ldflags '-s'
+LDFLAGS := -ldflags '-s'
 
 .PHONY: all
 all: test lint build
@@ -22,13 +21,27 @@ clean:
 	rm -rf dist
 
 .PHONY: build
-build: clean
-	GOARCH=amd64 go build $(BUILD_FLAGS) -o dist/dbmate-linux-amd64 .
-	# musl target does not support sqlite
-	GOARCH=amd64 CGO_ENABLED=0 go build $(BUILD_FLAGS) -o dist/dbmate-linux-musl-amd64 .
+build: clean build-linux build-macos build-windows
+	ls -lh dist
+
+.PHONY: build-linux
+build-linux:
+	GOOS=linux GOARCH=amd64 CGO_ENABLED=1 \
+	     go build $(LDFLAGS) -o dist/dbmate-linux-amd64 .
+	GOOS=linux GOARCH=amd64 CGO_ENABLED=0 \
+	     go build $(LDFLAGS) -o dist/dbmate-linux-musl-amd64 .
+
+.PHONY: build-macos
+build-macos:
+	GOOS=darwin GOARCH=amd64 CGO_ENABLED=1 CC=o64-clang CXX=o64-clang++ \
+	     go build $(LDFLAGS) -o dist/dbmate-macos-amd64 .
+
+.PHONY: build-windows
+build-windows:
+	GOOS=windows GOARCH=amd64 CGO_ENABLED=1 CC=x86_64-w64-mingw32-gcc-posix CXX=x86_64-w64-mingw32-g++-posix \
+	     go build $(LDFLAGS) -o dist/dbmate-windows-amd64.exe .
 
 .PHONY: docker
 docker:
-	$(DC) pull
-	$(DC) build
-	$(DC) run --rm dbmate make
+	docker-compose build
+	docker-compose run --rm dbmate make

go.mod

@@ -1,5 +1,7 @@
 module github.com/amacneil/dbmate
 
+go 1.13
+
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/go-sql-driver/mysql v1.4.1

pkg/dbmate/mysql_test.go

@@ -133,8 +133,10 @@ func TestMySQLDumpSchema(t *testing.T) {
 	u.Path = "/fakedb"
 	schema, err = drv.DumpSchema(u, db)
 	require.Nil(t, schema)
-	require.EqualError(t, err, "mysqldump: Got error: 1049: "+
-		"\"Unknown database 'fakedb'\" when selecting the database")
+	require.EqualError(t, err, "mysqldump: [Warning] Using a password "+
+		"on the command line interface can be insecure.\n"+
+		"mysqldump: Got error: 1049: "+
+		"Unknown database 'fakedb' when selecting the database")
 }
 
 func TestMySQLDatabaseExists(t *testing.T) {