Move `TempFileName` to `utils`

core/playback/mpv/mpv.go

@@ -2,14 +2,11 @@ package mpv
 
 import (
 	"context"
-	"crypto/rand"
-	"encoding/hex"
 	"errors"
 	"fmt"
 	"io"
 	"os"
 	"os/exec"
-	"path/filepath"
 	"strings"
 	"sync"
 
@@ -133,10 +130,3 @@ var (
 	mpvPath string
 	mpvErr  error
 )
-
-func TempFileName(prefix, suffix string) string {
-	randBytes := make([]byte, 16)
-	// we can savely ignore the return value since we're loading into a precreated, fixedsized buffer
-	_, _ = rand.Read(randBytes)
-	return filepath.Join(os.TempDir(), prefix+hex.EncodeToString(randBytes)+suffix)
-}

core/playback/mpv/track.go

@@ -13,6 +13,7 @@ import (
 	"github.com/dexterlb/mpvipc"
 	"github.com/navidrome/navidrome/log"
 	"github.com/navidrome/navidrome/model"
+	"github.com/navidrome/navidrome/utils"
 )
 
 type MpvTrack struct {
@@ -31,7 +32,7 @@ func NewTrack(playbackDoneChannel chan bool, deviceName string, mf model.MediaFi
 		return nil, err
 	}
 
-	tmpSocketName := TempFileName("mpv-ctrl-", ".socket")
+	tmpSocketName := utils.TempFileName("mpv-ctrl-", ".socket")
 
 	args := createMPVCommand(mpvComdTemplate, deviceName, mf.Path, tmpSocketName)
 	exe, err := start(args)

scanner/metadata/taglib/taglib_test.go

@@ -4,8 +4,8 @@ import (
 	"io/fs"
 	"os"
 
-	"github.com/navidrome/navidrome/core/playback/mpv"
 	"github.com/navidrome/navidrome/scanner/metadata"
+	"github.com/navidrome/navidrome/utils"
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 )
@@ -181,7 +181,7 @@ var _ = Describe("Extractor", func() {
 			// Only run permission tests if we are not root
 			RegularUserContext("when run without root privileges", func() {
 				BeforeEach(func() {
-					accessForbiddenFile = mpv.TempFileName("access_forbidden", ".mp3")
+					accessForbiddenFile = utils.TempFileName("access_forbidden-", ".mp3")
 
 					f, err := os.OpenFile(accessForbiddenFile, os.O_WRONLY|os.O_CREATE, 0222)
 					Expect(err).ToNot(HaveOccurred())

utils/files.go

@@ -0,0 +1,12 @@
+package utils
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/google/uuid"
+)
+
+func TempFileName(prefix, suffix string) string {
+	return filepath.Join(os.TempDir(), prefix+uuid.NewString()+suffix)
+}