Fix Processed images count regression for multiple languages

Fixes #11002

5 files changed, 42 insertions, 23 deletions

diff --git a/resources/image.go b/resources/image.go
index c61e903ab..ad2f9de32 100644
--- a/resources/image.go
+++ b/resources/image.go
@@ -126,7 +126,7 @@ func (i *imageResource) getExif() *exif.ExifInfo {
 			return enc.Encode(i.meta)
 		}
 
-		_, i.metaInitErr = i.getSpec().imageCache.fileCache.ReadOrCreate(key, read, create)
+		_, i.metaInitErr = i.getSpec().ImageCache.fileCache.ReadOrCreate(key, read, create)
 	})
 
 	if i.metaInitErr != nil {
@@ -296,7 +296,7 @@ const imageProcWorkers = 1
 var imageProcSem = make(chan bool, imageProcWorkers)
 
 func (i *imageResource) doWithImageConfig(conf images.ImageConfig, f func(src image.Image) (image.Image, error)) (images.ImageResource, error) {
-	img, err := i.getSpec().imageCache.getOrCreate(i, conf, func() (*imageResource, image.Image, error) {
+	img, err := i.getSpec().ImageCache.getOrCreate(i, conf, func() (*imageResource, image.Image, error) {
 		imageProcSem <- true
 		defer func() {
 			<-imageProcSem
diff --git a/resources/image_cache.go b/resources/image_cache.go
index ca651fd5c..636607f94 100644
--- a/resources/image_cache.go
+++ b/resources/image_cache.go
@@ -26,16 +26,27 @@ import (
 	"github.com/gohugoio/hugo/helpers"
 )
 
-type imageCache struct {
+// ImageCache is a cache for image resources. The backing caches are shared between all sites.
+type ImageCache struct {
 	pathSpec *helpers.PathSpec
 
 	fileCache *filecache.Cache
 
+	*imageCacheStore
+}
+
+type imageCacheStore struct {
 	mu    sync.RWMutex
 	store map[string]*resourceAdapter
 }
 
-func (c *imageCache) deleteIfContains(s string) {
+// WithPathSpec returns a copy of the ImageCache with the given PathSpec set.
+func (c ImageCache) WithPathSpec(ps *helpers.PathSpec) *ImageCache {
+	c.pathSpec = ps
+	return &c
+}
+
+func (c *ImageCache) deleteIfContains(s string) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 	s = c.normalizeKeyBase(s)
@@ -48,21 +59,21 @@ func (c *imageCache) deleteIfContains(s string) {
 
 // The cache key is a lowercase path with Unix style slashes and it always starts with
 // a leading slash.
-func (c *imageCache) normalizeKey(key string) string {
+func (c *ImageCache) normalizeKey(key string) string {
 	return "/" + c.normalizeKeyBase(key)
 }
 
-func (c *imageCache) normalizeKeyBase(key string) string {
+func (c *ImageCache) normalizeKeyBase(key string) string {
 	return strings.Trim(strings.ToLower(filepath.ToSlash(key)), "/")
 }
 
-func (c *imageCache) clear() {
+func (c *ImageCache) clear() {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 	c.store = make(map[string]*resourceAdapter)
 }
 
-func (c *imageCache) getOrCreate(
+func (c *ImageCache) getOrCreate(
 	parent *imageResource, conf images.ImageConfig,
 	createImage func() (*imageResource, image.Image, error)) (*resourceAdapter, error) {
 	relTarget := parent.relTargetPathFromConfig(conf)
@@ -163,6 +174,6 @@ func (c *imageCache) getOrCreate(
 	return imgAdapter, nil
 }
 
-func newImageCache(fileCache *filecache.Cache, ps *helpers.PathSpec) *imageCache {
-	return &imageCache{fileCache: fileCache, pathSpec: ps, store: make(map[string]*resourceAdapter)}
+func newImageCache(fileCache *filecache.Cache, ps *helpers.PathSpec) *ImageCache {
+	return &ImageCache{fileCache: fileCache, pathSpec: ps, imageCacheStore: &imageCacheStore{store: make(map[string]*resourceAdapter)}}
 }
diff --git a/resources/resource_spec.go b/resources/resource_spec.go
index 4d2ceccb3..5ecb021fe 100644
--- a/resources/resource_spec.go
+++ b/resources/resource_spec.go
@@ -51,6 +51,7 @@ import (
 func NewSpec(
 	s *helpers.PathSpec,
 	common *SpecCommon, // may be nil
+	imageCache *ImageCache, // may be nil
 	incr identity.Incrementer,
 	logger loggers.Logger,
 	errorHandler herrors.ErrorSender,
@@ -90,11 +91,6 @@ func NewSpec(
 				PostProcessResources: make(map[string]postpub.PostPublishedResource),
 				JSConfigBuilder:      jsconfig.NewBuilder(),
 			},
-			imageCache: newImageCache(
-				fileCaches.ImageCache(),
-
-				s,
-			),
 			ResourceCache: &ResourceCache{
 				fileCache: fileCaches.AssetsCache(),
 				cache:     make(map[string]any),
@@ -103,11 +99,22 @@ func NewSpec(
 		}
 	}
 
+	if imageCache == nil {
+		imageCache = newImageCache(
+			fileCaches.ImageCache(),
+			s,
+		)
+	} else {
+		imageCache = imageCache.WithPathSpec(s)
+
+	}
+
 	rs := &Spec{
 		PathSpec:    s,
 		Logger:      logger,
 		ErrorSender: errorHandler,
 		imaging:     imaging,
+		ImageCache:  imageCache,
 		ExecHelper:  execHelper,
 
 		Permalinks: permalinks,
@@ -128,6 +135,8 @@ type Spec struct {
 
 	Permalinks page.PermalinkExpander
 
+	ImageCache *ImageCache
+
 	// Holds default filter settings etc.
 	imaging *images.ImageProcessor
 
@@ -139,7 +148,6 @@ type Spec struct {
 // The parts of Spec that's comoon for all sites.
 type SpecCommon struct {
 	incr          identity.Incrementer
-	imageCache    *imageCache
 	ResourceCache *ResourceCache
 	FileCaches    filecache.Caches
 
@@ -171,13 +179,13 @@ func (r *Spec) BuildConfig() config.BuildConfig {
 }
 
 func (r *Spec) CacheStats() string {
-	r.imageCache.mu.RLock()
-	defer r.imageCache.mu.RUnlock()
+	r.ImageCache.mu.RLock()
+	defer r.ImageCache.mu.RUnlock()
 
-	s := fmt.Sprintf("Cache entries: %d", len(r.imageCache.store))
+	s := fmt.Sprintf("Cache entries: %d", len(r.ImageCache.store))
 
 	count := 0
-	for k := range r.imageCache.store {
+	for k := range r.ImageCache.store {
 		if count > 5 {
 			break
 		}
@@ -189,12 +197,12 @@ func (r *Spec) CacheStats() string {
 }
 
 func (r *Spec) ClearCaches() {
-	r.imageCache.clear()
+	r.ImageCache.clear()
 	r.ResourceCache.clear()
 }
 
 func (r *Spec) DeleteBySubstring(s string) {
-	r.imageCache.deleteIfContains(s)
+	r.ImageCache.deleteIfContains(s)
 }
 
 func (s *Spec) String() string {
diff --git a/resources/resource_transformers/htesting/testhelpers.go b/resources/resource_transformers/htesting/testhelpers.go
index 75ae4245e..b1feccc5f 100644
--- a/resources/resource_transformers/htesting/testhelpers.go
+++ b/resources/resource_transformers/htesting/testhelpers.go
@@ -43,7 +43,7 @@ func NewTestResourceSpec() (*resources.Spec, error) {
 		return nil, err
 	}
 
-	spec, err := resources.NewSpec(s, nil, nil, nil, nil, nil)
+	spec, err := resources.NewSpec(s, nil, nil, nil, nil, nil, nil)
 	return spec, err
 }
 
diff --git a/resources/testdata/pix.gif b/resources/testdata/pix.gif
new file mode 100644
index 000000000..f191b280c
--- /dev/null
+++ b/resources/testdata/pix.gif