class Go < Formula desc "Open source programming language to build simple/reliable/efficient software" homepage "https://golang.org" stable do url "https://dl.google.com/go/go1.12.7.src.tar.gz" mirror "https://fossies.org/linux/misc/go1.12.7.src.tar.gz" sha256 "95e8447d6f04b8d6a62de1726defbb20ab203208ee167ed15f83d7978ce43b13" go_version = version.to_s.split(".")[0..1].join(".") resource "gotools" do url "https://go.googlesource.com/tools.git", :branch => "release-branch.go#{go_version}" end end bottle do sha256 "928077a68d8e259606b9be2d21e17f66c4b530ffc79cb7797ecac65bd6d01272" => :mojave sha256 "5c213b1f724f744b401d8e61e6f44a018f749b78fea69b62374409df6ded2db4" => :high_sierra sha256 "66d2555e97854cbeb7ec1e4d0c92bf699530a519378a6bf7765b2cc8b72c9282" => :sierra end head do url "https://go.googlesource.com/go.git" resource "gotools" do url "https://go.googlesource.com/tools.git" end end depends_on :macos => :yosemite # Don't update this unless this version cannot bootstrap the new version. resource "gobootstrap" do url "https://storage.googleapis.com/golang/go1.7.darwin-amd64.tar.gz" version "1.7" sha256 "51d905e0b43b3d0ed41aaf23e19001ab4bc3f96c3ca134b48f7892485fc52961" end def install (buildpath/"gobootstrap").install resource("gobootstrap") ENV["GOROOT_BOOTSTRAP"] = buildpath/"gobootstrap" cd "src" do ENV["GOROOT_FINAL"] = libexec ENV["GOOS"] = "darwin" system "./make.bash", "--no-clean" end (buildpath/"pkg/obj").rmtree rm_rf "gobootstrap" # Bootstrap not required beyond compile. libexec.install Dir["*"] bin.install_symlink Dir[libexec/"bin/go*"] system bin/"go", "install", "-race", "std" # Build and install godoc ENV.prepend_path "PATH", bin ENV["GO111MODULE"] = "on" ENV["GOPATH"] = buildpath (buildpath/"src/golang.org/x/tools").install resource("gotools") cd "src/golang.org/x/tools/cmd/godoc/" do system "go", "build" (libexec/"bin").install "godoc" end bin.install_symlink libexec/"bin/godoc" end test do (testpath/"hello.go").write <<~EOS package main import "fmt" func main() { fmt.Println("Hello World") } EOS # Run go fmt check for no errors then run the program. # This is a a bare minimum of go working as it uses fmt, build, and run. system bin/"go", "fmt", "hello.go" assert_equal "Hello World\n", shell_output("#{bin}/go run hello.go") # godoc was installed assert_predicate libexec/"bin/godoc", :exist? assert_predicate libexec/"bin/godoc", :executable? ENV["GOOS"] = "freebsd" system bin/"go", "build", "hello.go" end end