Refactor packages structure

- Isolate files into their own packages
- Create new printer package and interface
- Refactor Repo stuct to embed the go-git *Repository directly
- Simplify cmd package

cmd/main.go

@@ -0,0 +1,79 @@
+package main
+
+import (
+	"fmt"
+	"git-get/cfg"
+	"git-get/git"
+	"git-get/path"
+	"git-get/print"
+	"os"
+
+	pathpkg "path"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+var (
+	version = "dev"
+	commit  = "unknown"
+	date    = "unknown"
+)
+
+var cmd = &cobra.Command{
+	Use:     "git-get <repo>",
+	Short:   "git get",
+	Run:     Run,
+	Args:    cobra.MaximumNArgs(1),
+	Version: fmt.Sprintf("%s - %s, build at %s", version, commit, date),
+}
+
+var list bool
+
+func init() {
+	cmd.PersistentFlags().BoolVarP(&list, "list", "l", false, "Lists all repositories inside git-get root")
+	cmd.PersistentFlags().StringP(cfg.KeyReposRoot, "r", "", "repos root")
+	cmd.PersistentFlags().StringP(cfg.KeyPrivateKey, "p", "", "SSH private key path")
+	viper.BindPFlag(cfg.KeyReposRoot, cmd.PersistentFlags().Lookup(cfg.KeyReposRoot))
+	viper.BindPFlag(cfg.KeyPrivateKey, cmd.PersistentFlags().Lookup(cfg.KeyReposRoot))
+}
+
+func Run(cmd *cobra.Command, args []string) {
+	cfg.InitConfig()
+
+	root := viper.GetString(cfg.KeyReposRoot)
+	if list {
+		paths, err := path.FindRepos()
+		exitIfError(err)
+
+		repos, err := path.OpenAll(paths)
+		exitIfError(err)
+
+		//tree := BuildTree(root, repos)
+		//fmt.Println(RenderSmartTree(tree))
+
+		printer := print.NewFlatPrinter()
+		fmt.Println(printer.Print(root, repos))
+
+		os.Exit(0)
+	}
+
+	url, err := path.ParseURL(args[0])
+	exitIfError(err)
+	repoPath := pathpkg.Join(root, path.URLToPath(url))
+
+	_, err = git.CloneRepo(url, repoPath, false)
+	exitIfError(err)
+}
+
+func main() {
+	err := cmd.Execute()
+	exitIfError(err)
+}
+
+func exitIfError(err error) {
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+}