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Image resource refactor

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This commit pulls most of the image related logic into its own package, to make it easier to reason about and extend.

This is also a rewrite of the transformation logic used in Hugo Pipes, mostly to allow constructs like the one below:

    {{ ($myimg | fingerprint ).Width }}

Fixes #5903
Fixes #6234
Fixes #6266
This commit is contained in:
Bjørn Erik Pedersen
2019-08-18 11:21:27 +02:00
parent 58d4c0a8be
commit f9978ed164
34 changed files with 2674 additions and 1556 deletions
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12
resources/resource_transformers/postcss/postcss.go
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@@ -17,6 +17,7 @@ import (
"io"
"path/filepath"
"github.com/gohugoio/hugo/resources/internal"
"github.com/spf13/cast"
"github.com/gohugoio/hugo/hugofs"
@@ -98,8 +99,8 @@ type postcssTransformation struct {
rs *resources.Spec
}
func (t *postcssTransformation) Key() resources.ResourceTransformationKey {
return resources.NewResourceTransformationKey("postcss", t.options)
func (t *postcssTransformation) Key() internal.ResourceTransformationKey {
return internal.NewResourceTransformationKey("postcss", t.options)
}
// Transform shells out to postcss-cli to do the heavy lifting.
@@ -187,9 +188,6 @@ func (t *postcssTransformation) Transform(ctx *resources.ResourceTransformationC
}
// Process transforms the given Resource with the PostCSS processor.
func (c *Client) Process(res resource.Resource, options Options) (resource.Resource, error) {
return c.rs.Transform(
res,
&postcssTransformation{rs: c.rs, options: options},
)
func (c *Client) Process(res resources.ResourceTransformer, options Options) (resource.Resource, error) {
return res.Transform(&postcssTransformation{rs: c.rs, options: options})
}