Merge pull request #1 from Bugagazavr/cleanup

Cleanup

Makefile

@@ -2,15 +2,12 @@
 
 VERSION := $(shell if [ -z "$$TRAVIS_TAG" ]; then echo "dev"; else echo "$$TRAVIS_TAG" | tail -c +2; fi)
 
-all: deps crosscompile version dist
+all: deps crosscompile dist
 
 deps:
 	go get github.com/mitchellh/gox
 	go get ./...
 
-build:
-	go build grvm.go
-
 crosscompile:
 	gox --osarch="linux/amd64" --output="crosscompile/linux_amd64_grvm" --ldflags='-X main.version=${VERSION}'
 	gox --osarch="linux/386" --output="crosscompile/linux_386_grvm" --ldflags='-X main.version=${VERSION}'

doctor.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+
+	"github.com/codegangsta/cli"
+)
+
+func GetDoctor(c *cli.Context) {
+	if _, err := os.Stat(rubyBuildDirectory); os.IsNotExist(err) {
+		installRubyBuild()
+	}
+
+	updateAvailableRubies()
+}
+
+func installRubyBuild() {
+	fmt.Println("Install ruby-build")
+	args := []string{"clone", "https://github.com/rbenv/ruby-build.git", rubyBuildDirectory}
+
+	cmd := exec.Command("git", args...)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	if err := cmd.Run(); err != nil {
+		fmt.Println("something going wrong, try to clone ruby-build manually: git", strings.Join(args, " "))
+		os.Exit(1)
+	}
+}

env.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/codegangsta/cli"
+)
+
+func GetEnv(c *cli.Context) {
+	var currentRuby string
+	var err error
+
+	if len(grvmRubyEnv) == 0 {
+		currentRuby, err = getDefaultRuby(c)
+		if err != nil {
+			Print(c, "Cannot get default ruby:", err.Error())
+		}
+	} else {
+		currentRuby = grvmRubyEnv
+	}
+
+	switch currentRuby {
+	case "system":
+		fmt.Println("export grvm_ruby=system")
+	default:
+		printEnv(currentRuby)
+	}
+}