fix(artwork): search parent folders for album cover art in multi-disc layouts (#5157)

* fix(artwork): search parent folders for album cover art in multi-disc layouts

When albums have tracks in subdirectories (e.g., CD1/, CD2/), Navidrome
only searched those subdirectories for cover images. This meant cover art
placed in the album's root folder (e.g., "Artist/Album/cover.jpg") was
not found. Now loadAlbumFoldersPaths also queries parent folders of the
album's media folders, so cover art in the album root is discovered.

* fix(artwork): simplify parent folder detection for album cover art lookup

Signed-off-by: Deluan <deluan@navidrome.org>

* fix(album): propagate non-ErrNotFound errors from parent folder lookup

Signed-off-by: Deluan <deluan@navidrome.org>

---------

Signed-off-by: Deluan <deluan@navidrome.org>
This commit is contained in:
Deluan Quintão 2026-03-09 10:52:13 -04:00 committed by GitHub
parent 7c5aa1fafa
commit a25306f2c1
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
3 changed files with 235 additions and 2 deletions

View file

@ -4,6 +4,7 @@ import (
"cmp"
"context"
"crypto/md5"
"errors"
"fmt"
"io"
"path/filepath"
@ -17,6 +18,7 @@ import (
"github.com/navidrome/navidrome/core"
"github.com/navidrome/navidrome/core/external"
"github.com/navidrome/navidrome/core/ffmpeg"
"github.com/navidrome/navidrome/log"
"github.com/navidrome/navidrome/model"
)
@ -103,6 +105,28 @@ func loadAlbumFoldersPaths(ctx context.Context, ds model.DataStore, albums ...mo
if err != nil {
return nil, nil, nil, err
}
folderIDSet := make(map[string]bool, len(folderIDs))
for _, id := range folderIDs {
folderIDSet[id] = true
}
// For multi-disc albums (2+ folders), check if all folders share a common parent
// that is not already included. This finds cover art in the album root folder
// (e.g., "Artist/Album/cover.jpg" when tracks are in "Artist/Album/CD1/" and "Artist/Album/CD2/").
// We skip single-folder albums to avoid pulling images from the artist folder.
if commonParentID := commonParentFolder(folders, folderIDSet); commonParentID != "" {
parentFolder, err := ds.Folder(ctx).Get(commonParentID)
if errors.Is(err, model.ErrNotFound) {
log.Warn(ctx, "Parent folder not found for album cover art lookup", "parentID", commonParentID)
} else if err != nil {
return nil, nil, nil, err
}
if parentFolder != nil {
folders = append(folders, *parentFolder)
}
}
var paths []string
var imgFiles []string
var updatedAt time.Time
@ -125,6 +149,24 @@ func loadAlbumFoldersPaths(ctx context.Context, ds model.DataStore, albums ...mo
return paths, imgFiles, &updatedAt, nil
}
// commonParentFolder returns the shared parent folder ID when all folders have the
// same parent and that parent is not already in folderIDSet. Returns "" otherwise.
func commonParentFolder(folders []model.Folder, folderIDSet map[string]bool) string {
if len(folders) < 2 {
return ""
}
parentID := folders[0].ParentID
if parentID == "" || folderIDSet[parentID] {
return ""
}
for _, f := range folders[1:] {
if f.ParentID != parentID {
return ""
}
}
return parentID
}
// compareImageFiles compares two image file paths for sorting.
// It extracts the base filename (without extension) and compares case-insensitively.
// This ensures that "cover.jpg" sorts before "cover.1.jpg" since "cover" < "cover.1".

View file

@ -2,6 +2,7 @@ package artwork
import (
"context"
"errors"
"path/filepath"
"time"
@ -116,5 +117,181 @@ var _ = Describe("Album Artwork Reader", func() {
Expect(imgFiles[1]).To(Equal(filepath.FromSlash("Artist/Album/cover.jpg")))
Expect(imgFiles[2]).To(Equal(filepath.FromSlash("Artist/Album/Folder.jpg")))
})
It("includes images from parent folder for multi-disc albums", func() {
// Simulates: Artist/Album/cover.jpg with tracks in Artist/Album/CD1/ and Artist/Album/CD2/
repo.result = []model.Folder{
{
ID: "folder1",
Path: "Artist/Album",
Name: "CD1",
ParentID: "parentFolder",
ImagesUpdatedAt: now,
ImageFiles: []string{},
},
{
ID: "folder2",
Path: "Artist/Album",
Name: "CD2",
ParentID: "parentFolder",
ImagesUpdatedAt: now,
ImageFiles: []string{},
},
}
repo.parentResult = &model.Folder{
ID: "parentFolder",
Path: "Artist",
Name: "Album",
ImagesUpdatedAt: expectedAt,
ImageFiles: []string{"cover.jpg", "back.jpg"},
}
_, imgFiles, imagesUpdatedAt, err := loadAlbumFoldersPaths(ctx, ds, album)
Expect(err).ToNot(HaveOccurred())
Expect(*imagesUpdatedAt).To(Equal(expectedAt))
Expect(imgFiles).To(HaveLen(2))
Expect(imgFiles[0]).To(Equal(filepath.FromSlash("Artist/Album/back.jpg")))
Expect(imgFiles[1]).To(Equal(filepath.FromSlash("Artist/Album/cover.jpg")))
})
It("does not query parent when parent ID is already in album folders", func() {
// When the parent folder is already one of the album's folders, skip it
repo.result = []model.Folder{
{
ID: "folder1",
Path: "Artist",
Name: "Album",
ParentID: "folder2",
ImagesUpdatedAt: now,
ImageFiles: []string{"cover.jpg"},
},
{
ID: "folder2",
Path: "",
Name: "Artist",
ImagesUpdatedAt: now,
ImageFiles: []string{},
},
}
_, imgFiles, _, err := loadAlbumFoldersPaths(ctx, ds, album)
Expect(err).ToNot(HaveOccurred())
Expect(imgFiles).To(HaveLen(1))
Expect(imgFiles[0]).To(Equal(filepath.FromSlash("Artist/Album/cover.jpg")))
// Get should not have been called (parent already in folder set)
Expect(repo.getCallCount).To(Equal(0))
})
It("does not query parent when folders have different parents", func() {
// When album folders span different parents, don't search any parent
repo.result = []model.Folder{
{
ID: "folder1",
Path: "Artist1/Album",
Name: "part1",
ParentID: "parentA",
ImagesUpdatedAt: now,
ImageFiles: []string{"cover.jpg"},
},
{
ID: "folder2",
Path: "Artist2/Album",
Name: "part2",
ParentID: "parentB",
ImagesUpdatedAt: now,
ImageFiles: []string{},
},
}
_, imgFiles, _, err := loadAlbumFoldersPaths(ctx, ds, album)
Expect(err).ToNot(HaveOccurred())
Expect(imgFiles).To(HaveLen(1))
Expect(imgFiles[0]).To(Equal(filepath.FromSlash("Artist1/Album/part1/cover.jpg")))
// Get should not have been called (different parents)
Expect(repo.getCallCount).To(Equal(0))
})
It("does not query parent for single-folder albums", func() {
// A single-folder album's parent is typically the artist folder,
// which should not be searched for cover art
repo.result = []model.Folder{
{
ID: "folder1",
Path: "Artist",
Name: "Album",
ParentID: "artistFolder",
ImagesUpdatedAt: now,
ImageFiles: []string{"cover.jpg"},
},
}
_, imgFiles, _, err := loadAlbumFoldersPaths(ctx, ds, album)
Expect(err).ToNot(HaveOccurred())
Expect(imgFiles).To(HaveLen(1))
Expect(imgFiles[0]).To(Equal(filepath.FromSlash("Artist/Album/cover.jpg")))
// Get should not have been called (single folder, no parent lookup)
Expect(repo.getCallCount).To(Equal(0))
})
It("propagates non-ErrNotFound errors from parent folder lookup", func() {
repo.result = []model.Folder{
{
ID: "folder1",
Path: "Artist/Album",
Name: "CD1",
ParentID: "parentFolder",
ImagesUpdatedAt: now,
ImageFiles: []string{"cover.jpg"},
},
{
ID: "folder2",
Path: "Artist/Album",
Name: "CD2",
ParentID: "parentFolder",
ImagesUpdatedAt: now,
ImageFiles: []string{},
},
}
repo.getErr = errors.New("db connection failed")
_, _, _, err := loadAlbumFoldersPaths(ctx, ds, album)
Expect(err).To(MatchError("db connection failed"))
Expect(repo.getCallCount).To(Equal(1))
})
It("continues gracefully when parent folder is not found", func() {
// Parent folder may have been deleted; should log a warning and continue
repo.result = []model.Folder{
{
ID: "folder1",
Path: "Artist/Album",
Name: "CD1",
ParentID: "missingParent",
ImagesUpdatedAt: now,
ImageFiles: []string{"cover.jpg"},
},
{
ID: "folder2",
Path: "Artist/Album",
Name: "CD2",
ParentID: "missingParent",
ImagesUpdatedAt: now,
ImageFiles: []string{},
},
}
// parentResult is nil, so Get will return ErrNotFound
_, imgFiles, _, err := loadAlbumFoldersPaths(ctx, ds, album)
Expect(err).ToNot(HaveOccurred())
Expect(imgFiles).To(HaveLen(1))
Expect(imgFiles[0]).To(Equal(filepath.FromSlash("Artist/Album/CD1/cover.jpg")))
Expect(repo.getCallCount).To(Equal(1))
})
})
})

View file

@ -417,14 +417,28 @@ var _ = Describe("artistArtworkReader", func() {
type fakeFolderRepo struct {
model.FolderRepository
result []model.Folder
err error
result []model.Folder
parentResult *model.Folder
getErr error
getCallCount int
err error
}
func (f *fakeFolderRepo) GetAll(...model.QueryOptions) ([]model.Folder, error) {
return f.result, f.err
}
func (f *fakeFolderRepo) Get(id string) (*model.Folder, error) {
f.getCallCount++
if f.getErr != nil {
return nil, f.getErr
}
if f.parentResult != nil {
return f.parentResult, nil
}
return nil, model.ErrNotFound
}
type fakeDataStore struct {
model.DataStore
folderRepo *fakeFolderRepo