update to use /Users/tai

cmd/mg/cmd/common.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"log"
 	"os"
+	"strings"
 
 	"github.com/taigrr/mg/parse"
 )
@@ -27,5 +28,11 @@ func GetConfig() parse.MGConfig {
 			}
 		}
 	}
+	homeDir, _ := os.UserHomeDir()
+	for i, repo := range conf.Repos {
+		if strings.HasPrefix(repo.Path, "$HOME") {
+			conf.Repos[i].Path = strings.Replace(repo.Path, "$HOME", homeDir, 1)
+		}
+	}
 	return conf
 }

cmd/mg/cmd/register.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"strings"
 
 	git "github.com/go-git/go-git/v5"
 	"github.com/spf13/cobra"
@@ -52,6 +53,16 @@ var registerCmd = &cobra.Command{
 			os.Exit(1)
 		}
 		path = newPath.Filesystem.Root()
+
+		homeDir, err := os.UserHomeDir()
+		if err != nil {
+			log.Println("Unable to get home directory")
+			os.Exit(1)
+		}
+		if strings.HasPrefix(path, homeDir) {
+			path = "$HOME" + path[len(homeDir):]
+		}
+
 		for _, v := range conf.Repos {
 			if v.Path == path {
 				fmt.Printf("repo %s already registered\n", path)