refactor: make output *beautiful*

cmd/getVersions.go

@@ -26,8 +26,25 @@ var getVersionsCmd = &cobra.Command{
 		versions := GetVersions(args[0])
 		sortedVersions := sortByKeys(versions)
 
-		for _, k := range sortedVersions {
-			fmt.Println("Date: "+k.Value.Format(time.DateTime), "Version: "+k.Key)
+		for i, k := range sortedVersions {
+			dateOutput := "| Date: " + k.Value.Format(time.DateTime) + " | "
+			versionOutput := "Version: " + k.Key + " |"
+			dateLen := len(dateOutput)
+			versionLen := len(versionOutput)
+			headfoot := "|"
+			for i := 0; i < dateLen-3; i++ {
+				headfoot += "-"
+			}
+			headfoot += "+"
+			for i := 0; i < versionLen; i++ {
+				headfoot += "-"
+			}
+			headfoot += "|"
+			if i == 0 {
+				fmt.Println(headfoot)
+			}
+			fmt.Println(dateOutput + versionOutput)
+			fmt.Println(headfoot)
 		}
 	},
 }

cmd/root.go

@@ -2,6 +2,7 @@
 package cmd
 
 import (
+	"errors"
 	"fmt"
 	"github.com/spf13/cobra"
 	"log"
@@ -11,9 +12,9 @@ import (
 
 var (
 	// Flags
-	IgnoreUpgrade bool
-	Unmask        bool
-	Version       string
+	Mask    bool
+	Unmask  bool
+	Version string
 
 	// Args
 	PkgName string
@@ -21,7 +22,7 @@ var (
 
 var rootCmd = &cobra.Command{
 	Use:   "flatpak-downgrade",
-	Short: "Used to downgrade flatpak applications to a previous version.",
+	Short: "Used to downgrade flatpak applications to a previous version",
 	Args:  cobra.ExactArgs(1),
 	Run: func(cmd *cobra.Command, args []string) {
 		PkgName = args[0]
@@ -30,11 +31,16 @@ var rootCmd = &cobra.Command{
 			Version = GetPreviousVersion(PkgName)
 		}
 
-		downgrade()
+		if err := downgrade(); err != nil {
+			fmt.Println("\n\nFailed to downgrade ", PkgName, " to ", Version)
+			log.Fatal(err)
+		} else {
+			fmt.Println("Successfully downgraded ", PkgName, " to ", Version)
+		}
 	},
 }
 
-func downgrade() {
+func downgrade() error {
 	fmt.Println("Downgrading ", PkgName, "to ", Version)
 
 	cmd := exec.Command("flatpak", "update", "--commit="+Version, PkgName)
@@ -45,19 +51,19 @@ func downgrade() {
 
 	err := cmd.Run()
 	if err != nil {
-		panic(err)
+		return err
 	}
 
-	if IgnoreUpgrade && Unmask {
-		log.Fatal("Error: Cannot use both --ignore-upgrade and --unmask flags together.")
+	if Mask && Unmask {
+		return errors.New("please choose either --mask or --unmask, not both")
 	}
-	if IgnoreUpgrade {
+	if Mask {
 		mask()
 	} else if Unmask {
 		unmask()
 	}
 
-	fmt.Println("Downgrade successful!")
+	return nil
 }
 
 func mask() {
@@ -87,7 +93,7 @@ func Execute() {
 }
 
 func init() {
-	rootCmd.Flags().BoolVarP(&IgnoreUpgrade, "mask", "m", false, "Mark flatpak as ignored for upgrade")
+	rootCmd.Flags().BoolVarP(&Mask, "mask", "m", false, "Mark flatpak as ignored for upgrade")
 	rootCmd.Flags().BoolVarP(&Unmask, "unmask", "u", false, "Mark flatpak as upgradable")
 	rootCmd.Flags().StringVarP(&Version, "version", "v", "", "Commit hash of the specific version")
 }