Release v0.2.0, with darwin+linux amd64 binaries in github

Makefile

@@ -6,13 +6,16 @@ help:
 	@echo "install: Install binary."
 	@echo "clean:   Clean up."
 
-build: build_pkgs
+build:
 	@mkdir -p ./bin
 	@rm -f ./bin/*
 	go build -o ./bin/sup ./cmd/sup
 
-build_pkgs:
-	go build ./...
+dist:
+	@mkdir -p ./bin
+	@rm -f ./bin/*
+	GOOS=darwin GOARCH=amd64 go build -o ./bin/sup-darwin64 ./cmd/sup
+	GOOS=linux GOARCH=amd64 go build -o ./bin/sup-linux64 ./cmd/sup
 
 test:
 	go test

cmd/sup/main.go

@@ -138,7 +138,7 @@ func main() {
 	flag.Parse()
 
 	if *showVersionShort || *showVersionLong {
-		fmt.Println("0.2")
+		fmt.Println(sup.VERSION)
 		return
 	}
 

sup.go

@@ -13,6 +13,8 @@ import (
 	"golang.org/x/crypto/ssh"
 )
 
+const VERSION = "0.2.0"
+
 type Stackup struct {
 	conf *Supfile
 }