Fixed config init/edition to be opened with a tool available on user OS

cmd/edit.go

@@ -28,10 +28,10 @@ in the source code repository.`,
 			files = []string{config.Filepath}
 		}
 
-		command := exec.Command("open", files...)
+		command := exec.Command(openerCommand, files...)
 
 		if err := command.Start(); err != nil {
-			fmt.Printf("❌  Cannot run the 'open' command to edit config file: %v\n", err)
+			fmt.Printf("❌  Cannot run the '%s' command to edit config file: %v\n", openerCommand, err)
 			return
 		}
 	},

cmd/init.go

@@ -23,10 +23,10 @@ in the source code repository.`,
 				return
 			}
 
-			command := exec.Command("open", config.Filepath)
+			command := exec.Command(openerCommand, config.Filepath)
 
 			if err := command.Start(); err != nil {
-				fmt.Printf("❌  Cannot run the 'open' command to edit config file: %v\n", err)
+				fmt.Printf("❌  Cannot run the '%s' command to edit config file: %v\n", openerCommand, err)
 				return
 			}
 		} else {

cmd/main.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"os"
 	"os/signal"
+	"runtime"
 	"syscall"
 
 	"github.com/eko/monday/pkg/config"
@@ -30,9 +31,13 @@ var (
 	forwarderComponent *forwarder.Forwarder
 	runnerComponent    *runner.Runner
 	watcherComponent   *watcher.Watcher
+
+	openerCommand string
 )
 
 func main() {
+	initRuntimeEnvironment()
+
 	rootCmd := &cobra.Command{
 		Run: func(cmd *cobra.Command, args []string) {
 			conf, err := config.Load()
@@ -61,6 +66,16 @@ func main() {
 	}
 }
 
+func initRuntimeEnvironment() {
+	switch runtime.GOOS {
+	case "darwin":
+		openerCommand = "open"
+
+	default:
+		openerCommand = "gedit"
+	}
+}
+
 func selectProject(conf *config.Config) string {
 	prompt := promptui.Select{
 		Label: "Which project do you want to work on?",