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Add images.Process filter

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This allows for constructs like:

```
{{ $filters := slice (images.GaussianBlur 8) (images.Grayscale) (images.Process "jpg q30 resize 200x") }}
{{ $img = $img | images.Filter $filters }}
```

Note that the `action` option in `images.Process` is optional (`resize` in the example above), so you can use the above to just set the target format, e.g.:

```
{{ $filters := slice (images.GaussianBlur 8) (images.Grayscale) (images.Process "jpg") }}
{{ $img = $img | images.Filter $filters }}
```

Fixes #8439
This commit is contained in:
Bjørn Erik Pedersen
2023-09-23 11:45:17 +02:00
parent ef0e7149d6
commit 6a246d1152
6 changed files with 204 additions and 16 deletions
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35
resources/integration_test.go
View File

@@ -73,7 +73,6 @@ anigif: {{ $anigif.RelPermalink }}|{{ $anigif.Width }}|{{ $anigif.Height }}|{{ $
b.Build()
assertImages()
}
func TestSVGError(t *testing.T) {
@@ -98,7 +97,6 @@ Width: {{ $svg.Width }}
b.Assert(err, qt.IsNotNil)
b.Assert(err.Error(), qt.Contains, `error calling Width: this method is only available for raster images. To determine if an image is SVG, you can do {{ if eq .MediaType.SubType "svg" }}{{ end }}`)
}
// Issue 10255.
@@ -137,5 +135,36 @@ iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNkYPhfDwAChwGA60e6kgAA
b.AssertFileCount("public/images", 1)
b.Build()
}
}
func TestProcessFilter(t *testing.T) {
t.Parallel()
files := `
-- assets/images/pixel.png --
iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNkYPhfDwAChwGA60e6kgAAAABJRU5ErkJggg==
-- layouts/index.html --
{{ $pixel := resources.Get "images/pixel.png" }}
{{ $filters := slice (images.GaussianBlur 6) (images.Pixelate 8) (images.Process "jpg") }}
{{ $image := $pixel.Filter $filters }}
jpg|RelPermalink: {{ $image.RelPermalink }}|MediaType: {{ $image.MediaType }}|Width: {{ $image.Width }}|Height: {{ $image.Height }}|
{{ $filters := slice (images.GaussianBlur 6) (images.Pixelate 8) (images.Process "jpg resize 20x30") }}
{{ $image := $pixel.Filter $filters }}
resize 1|RelPermalink: {{ $image.RelPermalink }}|MediaType: {{ $image.MediaType }}|Width: {{ $image.Width }}|Height: {{ $image.Height }}|
{{ $image := $pixel.Filter $filters }}
resize 2|RelPermalink: {{ $image.RelPermalink }}|MediaType: {{ $image.MediaType }}|Width: {{ $image.Width }}|Height: {{ $image.Height }}|
`
b := hugolib.NewIntegrationTestBuilder(
hugolib.IntegrationTestConfig{
T: t,
TxtarString: files,
}).Build()
b.AssertFileContent("public/index.html",
"jpg|RelPermalink: /images/pixel_hu8aa3346827e49d756ff4e630147c42b5_70_filter_17010532266664966692.jpg|MediaType: image/jpeg|Width: 1|Height: 1|",
"resize 1|RelPermalink: /images/pixel_hu8aa3346827e49d756ff4e630147c42b5_70_filter_6707036659822075562.jpg|MediaType: image/jpeg|Width: 20|Height: 30|",
"resize 2|RelPermalink: /images/pixel_hu8aa3346827e49d756ff4e630147c42b5_70_filter_6707036659822075562.jpg|MediaType: image/jpeg|Width: 20|Height: 30|",
)
}