Simplify `resources` code, enabling any resource to be overridden (not just translations)

cmd/root.go

@@ -10,6 +10,7 @@ import (
 	"github.com/navidrome/navidrome/consts"
 	"github.com/navidrome/navidrome/db"
 	"github.com/navidrome/navidrome/log"
+	"github.com/navidrome/navidrome/resources"
 	"github.com/navidrome/navidrome/scheduler"
 	"github.com/oklog/run"
 	"github.com/spf13/cobra"
@@ -45,7 +46,7 @@ func Execute() {
 
 func preRun() {
 	if !noBanner {
-		println(consts.Banner())
+		println(resources.Banner())
 	}
 	conf.Load()
 }

consts/consts.go

@@ -44,7 +44,7 @@ const (
 	I18nFolder   = "i18n"
 	SkipScanFile = ".ndignore"
 
-	PlaceholderAlbumArt = "navidrome-600x600.png"
+	PlaceholderAlbumArt = "placeholder.png"
 	PlaceholderAvatar   = "logo-192x192.png"
 
 	DefaultHttpClientTimeOut = 10 * time.Second

resources/banner.go

@@ -1,19 +1,19 @@
-package consts
+package resources
 
 import (
 	"fmt"
 	"strings"
 	"unicode"
 
-	"github.com/navidrome/navidrome/resources"
+	"github.com/navidrome/navidrome/consts"
 )
 
 func loadBanner() string {
-	data, _ := resources.Asset("banner.txt")
+	data, _ := Asset("banner.txt")
 	return strings.TrimRightFunc(string(data), unicode.IsSpace)
 }
 
 func Banner() string {
-	version := "Version: " + Version()
+	version := "Version: " + consts.Version()
 	return fmt.Sprintf("%s\n%52s\n", loadBanner(), version)
 }

resources/embed.go

@@ -3,10 +3,19 @@ package resources
 import (
 	"embed"
 	"io"
+	"io/fs"
+	"os"
+	"path"
+
+	"github.com/navidrome/navidrome/conf"
+	"github.com/navidrome/navidrome/utils"
 )
 
-//go:embed *
-var FS embed.FS
+var (
+	//go:embed *
+	fsys embed.FS
+	FS   fs.FS
+)
 
 func Asset(path string) ([]byte, error) {
 	f, err := FS.Open(path)
@@ -15,3 +24,10 @@ func Asset(path string) ([]byte, error) {
 	}
 	return io.ReadAll(f)
 }
+
+func init() {
+	FS = utils.MergeFS{
+		Base:    fsys,
+		Overlay: os.DirFS(path.Join(conf.Server.DataFolder, "resources")),
+	}
+}

server/nativeapi/translations.go

@@ -6,17 +6,14 @@ import (
 	"encoding/json"
 	"io"
 	"io/fs"
-	"os"
 	"path"
 	"strings"
 	"sync"
 
 	"github.com/deluan/rest"
-	"github.com/navidrome/navidrome/conf"
 	"github.com/navidrome/navidrome/consts"
 	"github.com/navidrome/navidrome/log"
 	"github.com/navidrome/navidrome/resources"
-	"github.com/navidrome/navidrome/utils"
 )
 
 type translation struct {
@@ -31,11 +28,7 @@ var (
 )
 
 func newTranslationRepository(context.Context) rest.Repository {
-	dir := utils.MergeFS{
-		Base:    resources.FS,
-		Overlay: os.DirFS(path.Join(conf.Server.DataFolder, "resources")),
-	}
-	if err := loadTranslations(dir); err != nil {
+	if err := loadTranslations(resources.FS); err != nil {
 		log.Error("Error loading translation files", err)
 	}
 	return &translationRepository{}
@@ -50,13 +43,13 @@ func (r *translationRepository) Read(id string) (interface{}, error) {
 	return nil, rest.ErrNotFound
 }
 
-// Simple Count implementation. Does not support any `options`
-func (r *translationRepository) Count(options ...rest.QueryOptions) (int64, error) {
+// Count simple implementation, does not support any `options`
+func (r *translationRepository) Count(...rest.QueryOptions) (int64, error) {
 	return int64(len(translations)), nil
 }
 
-// Simple ReadAll implementation, only returns IDs. Does not support any `options`
-func (r *translationRepository) ReadAll(options ...rest.QueryOptions) (interface{}, error) {
+// ReadAll simple implementation, only returns IDs. Does not support any `options`
+func (r *translationRepository) ReadAll(...rest.QueryOptions) (interface{}, error) {
 	var result []translation
 	for _, t := range translations {
 		t.Data = ""