Cache processed images by their source path

Fixes gohugoio#6269

hugolib/image_test.go

@@ -14,7 +14,6 @@
 package hugolib
 
 import (
-	"image/jpeg"
 	"io"
 	"os"
 	"path/filepath"
@@ -100,16 +99,6 @@ title: "My bundle"
 	b := newBuilder()
 	b.Build(BuildCfg{})
 
-	assertImage := func(width, height int, filename string) {
-		filename = filepath.Join(workDir, "public", filename)
-		f, err := b.Fs.Destination.Open(filename)
-		c.Assert(err, qt.IsNil)
-		defer f.Close()
-		cfg, err := jpeg.DecodeConfig(f)
-		c.Assert(cfg.Width, qt.Equals, width)
-		c.Assert(cfg.Height, qt.Equals, height)
-	}
-
 	imgExpect := `
 Resized1: images/sunset.jpg|123|234|image/jpg|/images/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_123x234_resize_q75_box.jpg|
 Resized2: images/sunset.jpg|12|23|image/jpg|/images/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_ada4bb1a57f77a63306e3bd67286248e.jpg|
@@ -121,7 +110,7 @@ Resized6: images/sunset.jpg|350|219|image/jpg|/images/sunset_hu59e56ffff1bc1d8d1
 `
 
 	b.AssertFileContent(filepath.Join(workDir, "public/index.html"), imgExpect)
-	assertImage(350, 219, "images/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_350x0_resize_q75_box.a86fe88d894e5db613f6aa8a80538fefc25b20fa24ba0d782c057adcef616f56.jpg")
+	b.AssertImage(350, 219, "public/images/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_350x0_resize_q75_box.a86fe88d894e5db613f6aa8a80538fefc25b20fa24ba0d782c057adcef616f56.jpg")
 
 	// Build it again to make sure we read images from file cache.
 	b = newBuilder()
@@ -130,3 +119,76 @@ Resized6: images/sunset.jpg|350|219|image/jpg|/images/sunset_hu59e56ffff1bc1d8d1
 	b.AssertFileContent(filepath.Join(workDir, "public/index.html"), imgExpect)
 
 }
+
+func TestImageResizeMultilingual(t *testing.T) {
+
+	b := newTestSitesBuilder(t).WithConfigFile("toml", `
+baseURL="https://example.org"
+defaultContentLanguage = "en"
+
+[languages]
+[languages.en]
+title = "Title in English"
+languageName = "English"
+weight = 1
+[languages.nn]
+languageName = "Nynorsk"
+weight = 2
+title = "Tittel på nynorsk"
+[languages.nb]
+languageName = "Bokmål"
+weight = 3
+title = "Tittel på bokmål"
+[languages.fr]
+languageName = "French"
+weight = 4
+title = "French Title"
+
+`)
+
+	pageContent := `---
+title: "Page"
+---
+`
+
+	b.WithContent("bundle/index.md", pageContent)
+	b.WithContent("bundle/index.nn.md", pageContent)
+	b.WithContent("bundle/index.fr.md", pageContent)
+	b.WithSunset("content/bundle/sunset.jpg")
+	b.WithSunset("assets/images/sunset.jpg")
+	b.WithTemplates("index.html", `
+{{ with (.Site.GetPage "bundle" ) }}
+{{ $sunset := .Resources.GetMatch "sunset*" }}
+{{ if $sunset }}
+{{ $resized := $sunset.Resize "200x200" }}
+SUNSET FOR: {{ $.Site.Language.Lang }}: {{ $resized.RelPermalink }}/{{ $resized.Width }}/Lat: {{ $resized.Exif.Lat }}
+{{ end }}
+{{ else }}
+No bundle for {{ $.Site.Language.Lang }}
+{{ end }}
+
+{{ $sunset2 := resources.Get "images/sunset.jpg" }}
+{{ $resized2 := $sunset2.Resize "123x234" }}
+SUNSET2: {{ $resized2.RelPermalink }}/{{ $resized2.Width }}/Lat: {{ $resized2.Exif.Lat }}
+
+`)
+
+	b.Build(BuildCfg{})
+
+	b.AssertFileContent("public/index.html", "SUNSET FOR: en: /bundle/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_200x200_resize_q75_box.jpg/200/Lat: 36.59744166666667")
+	b.AssertFileContent("public/fr/index.html", "SUNSET FOR: fr: /fr/bundle/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_200x200_resize_q75_box.jpg/200/Lat: 36.59744166666667")
+	b.AssertFileContent("public/index.html", " SUNSET2: /images/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_123x234_resize_q75_box.jpg/123/Lat: 36.59744166666667")
+	b.AssertFileContent("public/nn/index.html", " SUNSET2: /images/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_123x234_resize_q75_box.jpg/123/Lat: 36.59744166666667")
+
+	b.AssertImage(200, 200, "public/fr/bundle/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_200x200_resize_q75_box.jpg")
+	b.AssertImage(200, 200, "public/bundle/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_200x200_resize_q75_box.jpg")
+
+	// Check the file cache
+	b.AssertImage(200, 200, "resources/_gen/images/bundle/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_200x200_resize_q75_box.jpg")
+	b.AssertFileContent("resources/_gen/images/bundle/sunset_17701188623491591036.json",
+		"DateTimeDigitized|time.Time", "PENTAX")
+	b.AssertImage(123, 234, "resources/_gen/images/sunset_hu59e56ffff1bc1d8d122b1403d34e039f_90587_123x234_resize_q75_box.jpg")
+	b.AssertFileContent("resources/_gen/images/sunset_17701188623491591036.json",
+		"DateTimeDigitized|time.Time", "PENTAX")
+
+}

hugolib/testhelpers_test.go

@@ -1,6 +1,7 @@
 package hugolib
 
 import (
+	"image/jpeg"
 	"io"
 	"path/filepath"
 	"runtime"
@@ -334,7 +335,7 @@ func (s *sitesBuilder) WithSunset(in string) {
 	src, err := os.Open(filepath.FromSlash("testdata/sunset.jpg"))
 	s.Assert(err, qt.IsNil)
 
-	out, err := s.Fs.Source.Create(filepath.FromSlash(in))
+	out, err := s.Fs.Source.Create(filepath.FromSlash(filepath.Join(s.workingDir, in)))
 	s.Assert(err, qt.IsNil)
 
 	_, err = io.Copy(out, src)
@@ -669,6 +670,16 @@ func (s *sitesBuilder) AssertFileContent(filename string, matches ...string) {
 	}
 }
 
+func (s *sitesBuilder) AssertImage(width, height int, filename string) {
+	filename = filepath.Join(s.workingDir, filename)
+	f, err := s.Fs.Destination.Open(filename)
+	s.Assert(err, qt.IsNil)
+	defer f.Close()
+	cfg, err := jpeg.DecodeConfig(f)
+	s.Assert(cfg.Width, qt.Equals, width)
+	s.Assert(cfg.Height, qt.Equals, height)
+}
+
 func (s *sitesBuilder) FileContent(filename string) string {
 	s.T.Helper()
 	filename = filepath.FromSlash(filename)

resources/image.go

@@ -24,6 +24,7 @@ import (
 	"io/ioutil"
 	"os"
 	"path"
+	"path/filepath"
 	"strings"
 	"sync"
 
@@ -319,10 +320,13 @@ func (i *imageResource) getImageMetaCacheTargetPath() string {
 
 	cfg := i.getSpec().imaging.Cfg
 	df := i.getResourcePaths().relTargetDirFile
+	if fi := i.getFileInfo(); fi != nil {
+		df.dir = filepath.Dir(fi.Meta().Path())
+	}
 	p1, _ := helpers.FileAndExt(df.file)
 	h, _ := i.hash()
 	idStr := internal.HashString(h, i.size(), imageMetaVersionNumber, cfg)
-	return path.Join(df.dir, fmt.Sprintf("%s%s.json", p1, idStr))
+	return path.Join(df.dir, fmt.Sprintf("%s_%s.json", p1, idStr))
 }
 
 func (i *imageResource) relTargetPathFromConfig(conf images.ImageConfig) dirFile {

resources/image_cache.go

@@ -73,11 +73,18 @@ func (c *imageCache) getOrCreate(
 	parent *imageResource, conf images.ImageConfig,
 	createImage func() (*imageResource, image.Image, error)) (*resourceAdapter, error) {
 	relTarget := parent.relTargetPathFromConfig(conf)
-	key := parent.relTargetPathForRel(relTarget.path(), false, false, false)
+	memKey := parent.relTargetPathForRel(relTarget.path(), false, false, false)
+
+	// For the file cache we want to generate and store it once if possible.
+	fileKeyPath := relTarget
+	if fi := parent.root.getFileInfo(); fi != nil {
+		fileKeyPath.dir = filepath.ToSlash(filepath.Dir(fi.Meta().Path()))
+	}
+	fileKey := fileKeyPath.path()
 
 	// First check the in-memory store, then the disk.
 	c.mu.RLock()
-	cachedImage, found := c.store[key]
+	cachedImage, found := c.store[memKey]
 	c.mu.RUnlock()
 
 	if found {
@@ -133,7 +140,7 @@ func (c *imageCache) getOrCreate(
 	//  but the count of processed image variations for this site.
 	c.pathSpec.ProcessingStats.Incr(&c.pathSpec.ProcessingStats.ProcessedImages)
 
-	_, err := c.fileCache.ReadOrCreate(key, read, create)
+	_, err := c.fileCache.ReadOrCreate(fileKey, read, create)
 	if err != nil {
 		return nil, err
 	}
@@ -142,13 +149,13 @@ func (c *imageCache) getOrCreate(
 	img.setSourceFs(c.fileCache.Fs)
 
 	c.mu.Lock()
-	if cachedImage, found = c.store[key]; found {
+	if cachedImage, found = c.store[memKey]; found {
 		c.mu.Unlock()
 		return cachedImage, nil
 	}
 
 	imgAdapter := newResourceAdapter(parent.getSpec(), true, img)
-	c.store[key] = imgAdapter
+	c.store[memKey] = imgAdapter
 	c.mu.Unlock()
 
 	return imgAdapter, nil

resources/resource.go

@@ -22,6 +22,8 @@ import (
 	"path/filepath"
 	"sync"
 
+	"github.com/gohugoio/hugo/hugofs"
+
 	"github.com/gohugoio/hugo/media"
 	"github.com/gohugoio/hugo/source"
 
@@ -172,6 +174,7 @@ type fileInfo interface {
 	getSourceFilename() string
 	setSourceFilename(string)
 	setSourceFs(afero.Fs)
+	getFileInfo() hugofs.FileMetaInfo
 	hash() (string, error)
 	size() int
 }
@@ -537,7 +540,7 @@ type resourceFileInfo struct {
 	// the path to the file on the real filesystem.
 	sourceFilename string
 
-	fi os.FileInfo
+	fi hugofs.FileMetaInfo
 
 	// A hash of the source content. Is only calculated in caching situations.
 	h *resourceHash
@@ -555,6 +558,10 @@ func (fi *resourceFileInfo) ReadSeekCloser() (hugio.ReadSeekCloser, error) {
 	return f, nil
 }
 
+func (fi *resourceFileInfo) getFileInfo() hugofs.FileMetaInfo {
+	return fi.fi
+}
+
 func (fi *resourceFileInfo) getSourceFilename() string {
 	return fi.sourceFilename
 }

resources/resource_spec.go

@@ -22,6 +22,8 @@ import (
 	"path/filepath"
 	"strings"
 
+	"github.com/gohugoio/hugo/hugofs"
+
 	"github.com/gohugoio/hugo/helpers"
 
 	"github.com/gohugoio/hugo/cache/filecache"
@@ -194,8 +196,13 @@ func (r *Spec) newGenericResourceWithBase(
 		relTargetDirFile:   dirFile{dir: fpath, file: fname},
 	}
 
+	var fim hugofs.FileMetaInfo
+	if osFileInfo != nil {
+		fim = osFileInfo.(hugofs.FileMetaInfo)
+	}
+
 	gfi := &resourceFileInfo{
-		fi:                   osFileInfo,
+		fi:                   fim,
 		openReadSeekerCloser: openReadSeekerCloser,
 		sourceFs:             sourceFs,
 		sourceFilename:       sourceFilename,