Upgrade code

README.md

@@ -1,5 +1,6 @@
 # PWC
-![Tests](https://github.com/imanhodjaev/pwc/actions/workflows/run-tests.yml/badge.svg) 
+
+![Tests](https://github.com/imanhodjaev/pwc/actions/workflows/run-tests.yml/badge.svg)
 [![CodeQL](https://github.com/sultaniman/pwc/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/sultaniman/pwc/actions/workflows/codeql-analysis.yml)
 
 If you need to remember dozens of passwords without having to remember all of them
@@ -72,5 +73,4 @@ White #ffffff, Gray #c0c0c0, Red #ffc0c0, Green #c0ffc0, Yellow #ffffc0, Blue #c
 
 P.S. it was inspired by https://www.passwordcard.org/en.
 
-
 <p align="center">✨ 🚀 ✨</p>

canvas/canvas.go

@@ -1,11 +1,12 @@
 package canvas
 
 import (
+	"image"
+	"strconv"
+
 	"github.com/fogleman/gg"
 	"github.com/sultaniman/pwc/util"
 	"golang.org/x/image/font"
-	"image"
-	"strconv"
 )
 
 const (

cmd/classic.go

@@ -2,11 +2,12 @@ package cmd
 
 import (
 	"fmt"
+	"os"
+	"syscall"
+
 	"github.com/spf13/cobra"
 	"github.com/sultaniman/pwc/gen"
 	"github.com/sultaniman/pwc/util"
-	"os"
-	"syscall"
 )
 
 var (

cmd/explain.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/fatih/color"
 	goc "github.com/gookit/color"
 	"github.com/spf13/cobra"

cmd/restore.go

@@ -2,11 +2,11 @@ package cmd
 
 import (
 	"fmt"
+	"os"
+
 	"github.com/spf13/cobra"
 	"github.com/sultaniman/pwc/gen"
 	"github.com/sultaniman/pwc/util"
-	"io/ioutil"
-	"os"
 )
 
 var passphrase string
@@ -36,7 +36,7 @@ var restoreCmd = &cobra.Command{
 			os.Exit(1)
 		}
 
-		encryptedBytes, err := ioutil.ReadFile(encryptedFile)
+		encryptedBytes, err := os.ReadFile(encryptedFile)
 		if err != nil {
 			return err
 		}
@@ -73,8 +73,6 @@ var restoreCmd = &cobra.Command{
 		}
 
 		return util.SaveImage(canvas.Context, outputFile)
-
-		return nil
 	},
 }
 

cmd/root.go

@@ -1,8 +1,6 @@
 package cmd
 
-import (
-	"github.com/spf13/cobra"
-)
+import "github.com/spf13/cobra"
 
 var rootCmd = &cobra.Command{
 	Use:   "cmd",

crypto/crypto.go

@@ -7,8 +7,9 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
-	"golang.org/x/crypto/pbkdf2"
 	"strings"
+
+	"golang.org/x/crypto/pbkdf2"
 )
 
 // TODO(thanks): Encryption was adopted from https://gist.github.com/enyachoke/5c60f5eebed693d9b4bacddcad693b47

crypto/crypto_test.go

@@ -1,8 +1,9 @@
 package crypto
 
 import (
-	"github.com/stretchr/testify/assert"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestMessageEncryptDecrypt(t *testing.T) {

gen/classic.go

@@ -1,11 +1,12 @@
 package gen
 
 import (
+	"image"
+	"strings"
+
 	"github.com/sultaniman/pwc/canvas"
 	"github.com/sultaniman/pwc/crypto"
 	"github.com/sultaniman/pwc/util"
-	"image"
-	"strings"
 )
 
 type ClassicCard struct {

gen/classic_test.go

@@ -1,9 +1,10 @@
 package gen
 
 import (
+	"testing"
+
 	"github.com/stretchr/testify/assert"
 	"github.com/sultaniman/pwc/canvas"
-	"testing"
 )
 
 func TestClassicCard_Generate(t *testing.T) {

main.go

@@ -1,8 +1,6 @@
 package main
 
-import (
-	"github.com/sultaniman/pwc/cmd"
-)
+import "github.com/sultaniman/pwc/cmd"
 
 func main() {
 	cmd.Execute()

util/image.go

@@ -1,9 +1,10 @@
 package util
 
 import (
-	"github.com/fogleman/gg"
 	"path/filepath"
 	"strings"
+
+	"github.com/fogleman/gg"
 )
 
 var supportedExtensions = map[string]bool{

util/rand.go

@@ -1,9 +1,6 @@
 package util
 
-import (
-	"math/rand"
-	"time"
-)
+import "math/rand"
 
 type RandRange struct {
 	Min int
@@ -18,6 +15,5 @@ func NewRandRange(min int, max int) *RandRange {
 }
 
 func (rr *RandRange) Next() int {
-	rand.Seed(time.Now().UnixNano())
 	return rand.Intn(rr.Max-rr.Min+1) + rr.Min
 }

util/string.go

@@ -1,12 +1,8 @@
 package util
 
-import (
-	"math/rand"
-	"time"
-)
+import "math/rand"
 
 func Shuffle(inStr string) string {
-	rand.Seed(time.Now().UnixNano())
 	inRune := []rune(inStr)
 	rand.Shuffle(len(inRune), func(i, j int) {
 		inRune[i], inRune[j] = inRune[j], inRune[i]