resources: Regenerate image golden testdata

Keep this as a separate commit as this isn't because the files have changed. The filenames have changed due to cache busting of PNG and Webp images.

See #8729

resources/image_extended_test.go

@@ -36,6 +36,6 @@ func TestImageResizeWebP(t *testing.T) {
 	resized, err := image.Resize("123x")
 	c.Assert(err, qt.IsNil)
 	c.Assert(image.MediaType(), qt.Equals, media.WEBPType)
-	c.Assert(resized.RelPermalink(), qt.Equals, "/a/sunset_hu36ee0b61ba924719ad36da960c273f96_59826_123x0_resize_q68_h2_linear.webp")
+	c.Assert(resized.RelPermalink(), qt.Equals, "/a/sunset_hu36ee0b61ba924719ad36da960c273f96_59826_123x0_resize_q68_h2_linear_2.webp")
 	c.Assert(resized.Width(), qt.Equals, 123)
 }

resources/image_test.go

@@ -364,7 +364,7 @@ func TestImageResize8BitPNG(t *testing.T) {
 	resized, err := image.Resize("800x")
 	c.Assert(err, qt.IsNil)
 	c.Assert(resized.MediaType().Type(), qt.Equals, "image/png")
-	c.Assert(resized.RelPermalink(), qt.Equals, "/a/gohugoio_hu0e1b9e4a4be4d6f86c7b37b9ccce3fbc_73886_800x0_resize_linear_2.png")
+	c.Assert(resized.RelPermalink(), qt.Equals, "/a/gohugoio_hu0e1b9e4a4be4d6f86c7b37b9ccce3fbc_73886_800x0_resize_linear_3.png")
 	c.Assert(resized.Width(), qt.Equals, 800)
 }
 
@@ -381,7 +381,7 @@ func TestImageResizeInSubPath(t *testing.T) {
 	resized, err := image.Resize("101x101")
 	c.Assert(err, qt.IsNil)
 	c.Assert(resized.MediaType().Type(), qt.Equals, "image/png")
-	c.Assert(resized.RelPermalink(), qt.Equals, "/a/sub/gohugoio2_hu0e1b9e4a4be4d6f86c7b37b9ccce3fbc_73886_101x101_resize_linear_2.png")
+	c.Assert(resized.RelPermalink(), qt.Equals, "/a/sub/gohugoio2_hu0e1b9e4a4be4d6f86c7b37b9ccce3fbc_73886_101x101_resize_linear_3.png")
 	c.Assert(resized.Width(), qt.Equals, 101)
 	c.Assert(resized.Exif(), qt.IsNil)
 
@@ -397,7 +397,7 @@ func TestImageResizeInSubPath(t *testing.T) {
 
 	resizedAgain, err := image.Resize("101x101")
 	c.Assert(err, qt.IsNil)
-	c.Assert(resizedAgain.RelPermalink(), qt.Equals, "/a/sub/gohugoio2_hu0e1b9e4a4be4d6f86c7b37b9ccce3fbc_73886_101x101_resize_linear_2.png")
+	c.Assert(resizedAgain.RelPermalink(), qt.Equals, "/a/sub/gohugoio2_hu0e1b9e4a4be4d6f86c7b37b9ccce3fbc_73886_101x101_resize_linear_3.png")
 	c.Assert(resizedAgain.Width(), qt.Equals, 101)
 	assertImageFile(c, image.(specProvider).getSpec().BaseFs.PublishFs, publishedImageFilename, 101, 101)
 }

resources/images/config.go

@@ -45,7 +45,8 @@ var (
 	// Add or increment if changes to an image format's processing requires
 	// re-generation.
 	imageFormatsVersions = map[Format]int{
-		PNG: 2, // Floyd Steinberg dithering
+		PNG:  3, // Fix transparency issue with 32 bit images.
+		WEBP: 2, // Fix transparency issue with 32 bit images.
 	}
 
 	// Increment to mark all processed images as stale. Only use when absolutely needed.

resources/transform_test.go

@@ -371,22 +371,22 @@ func TestTransform(t *testing.T) {
 		resizedPublished1, err := img.Resize("40x40")
 		c.Assert(err, qt.IsNil)
 		c.Assert(resizedPublished1.Height(), qt.Equals, 40)
-		c.Assert(resizedPublished1.RelPermalink(), qt.Equals, "/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_40x40_resize_linear_2.png")
+		c.Assert(resizedPublished1.RelPermalink(), qt.Equals, "/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_40x40_resize_linear_3.png")
-		assertShouldExist(c, spec, "public/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_40x40_resize_linear_2.png", true)
+		assertShouldExist(c, spec, "public/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_40x40_resize_linear_3.png", true)
 
 		// Permalink called.
 		resizedPublished2, err := img.Resize("30x30")
 		c.Assert(err, qt.IsNil)
 		c.Assert(resizedPublished2.Height(), qt.Equals, 30)
-		c.Assert(resizedPublished2.Permalink(), qt.Equals, "https://example.com/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_30x30_resize_linear_2.png")
+		c.Assert(resizedPublished2.Permalink(), qt.Equals, "https://example.com/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_30x30_resize_linear_3.png")
-		assertShouldExist(c, spec, "public/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_30x30_resize_linear_2.png", true)
+		assertShouldExist(c, spec, "public/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_30x30_resize_linear_3.png", true)
 
 		// Not published because none of RelPermalink or Permalink was called.
 		resizedNotPublished, err := img.Resize("50x50")
 		c.Assert(err, qt.IsNil)
 		c.Assert(resizedNotPublished.Height(), qt.Equals, 50)
 		// c.Assert(resized.RelPermalink(), qt.Equals, "/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_50x50_resize_linear_2.png")
-		assertShouldExist(c, spec, "public/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_50x50_resize_linear_2.png", false)
+		assertShouldExist(c, spec, "public/gopher.changed_hu2e827f5a78333ebc04166dd643235dea_1462_50x50_resize_linear_3.png", false)
 
 		assertNoDuplicateWrites(c, spec)
 	})