mirror of
https://github.com/gohugoio/hugo.git
synced 2024-12-27 05:21:45 +00:00
dea71670c0
Before this commit, you would have to use page bundles to do image processing etc. in Hugo.
This commit adds
* A new `/assets` top-level project or theme dir (configurable via `assetDir`)
* A new template func, `resources.Get` which can be used to "get a resource" that can be further processed.
This means that you can now do this in your templates (or shortcodes):
```bash
{{ $sunset := (resources.Get "images/sunset.jpg").Fill "300x200" }}
```
This also adds a new `extended` build tag that enables powerful SCSS/SASS support with source maps. To compile this from source, you will also need a C compiler installed:
```
HUGO_BUILD_TAGS=extended mage install
```
Note that you can use output of the SCSS processing later in a non-SCSSS-enabled Hugo.
The `SCSS` processor is a _Resource transformation step_ and it can be chained with the many others in a pipeline:
```bash
{{ $css := resources.Get "styles.scss" | resources.ToCSS | resources.PostCSS | resources.Minify | resources.Fingerprint }}
<link rel="stylesheet" href="{{ $styles.RelPermalink }}" integrity="{{ $styles.Data.Digest }}" media="screen">
```
The transformation funcs above have aliases, so it can be shortened to:
```bash
{{ $css := resources.Get "styles.scss" | toCSS | postCSS | minify | fingerprint }}
<link rel="stylesheet" href="{{ $styles.RelPermalink }}" integrity="{{ $styles.Data.Digest }}" media="screen">
```
A quick tip would be to avoid the fingerprinting part, and possibly also the not-superfast `postCSS` when you're doing development, as it allows Hugo to be smarter about the rebuilding.
Documentation will follow, but have a look at the demo repo in https://github.com/bep/hugo-sass-test
New functions to create `Resource` objects:
* `resources.Get` (see above)
* `resources.FromString`: Create a Resource from a string.
New `Resource` transformation funcs:
* `resources.ToCSS`: Compile `SCSS` or `SASS` into `CSS`.
* `resources.PostCSS`: Process your CSS with PostCSS. Config file support (project or theme or passed as an option).
* `resources.Minify`: Currently supports `css`, `js`, `json`, `html`, `svg`, `xml`.
* `resources.Fingerprint`: Creates a fingerprinted version of the given Resource with Subresource Integrity..
* `resources.Concat`: Concatenates a list of Resource objects. Think of this as a poor man's bundler.
* `resources.ExecuteAsTemplate`: Parses and executes the given Resource and data context (e.g. .Site) as a Go template.
Fixes #4381
Fixes #4903
Fixes #4858
77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
// Copyright 2017-present The Hugo Authors. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package tplimpl
|
|
|
|
import (
|
|
"fmt"
|
|
"html/template"
|
|
"strings"
|
|
texttemplate "text/template"
|
|
|
|
bp "github.com/gohugoio/hugo/bufferpool"
|
|
"github.com/gohugoio/hugo/deps"
|
|
)
|
|
|
|
// Some of the template funcs are'nt entirely stateless.
|
|
type templateFuncster struct {
|
|
funcMap template.FuncMap
|
|
|
|
*deps.Deps
|
|
}
|
|
|
|
func newTemplateFuncster(deps *deps.Deps) *templateFuncster {
|
|
return &templateFuncster{
|
|
Deps: deps,
|
|
}
|
|
}
|
|
|
|
// Partial executes the named partial and returns either a string,
|
|
// when called from text/template, for or a template.HTML.
|
|
func (t *templateFuncster) partial(name string, contextList ...interface{}) (interface{}, error) {
|
|
if strings.HasPrefix("partials/", name) {
|
|
name = name[8:]
|
|
}
|
|
var context interface{}
|
|
|
|
if len(contextList) == 0 {
|
|
context = nil
|
|
} else {
|
|
context = contextList[0]
|
|
}
|
|
|
|
for _, n := range []string{"partials/" + name, "theme/partials/" + name} {
|
|
templ, found := t.Tmpl.Lookup(n)
|
|
if !found {
|
|
// For legacy reasons.
|
|
templ, found = t.Tmpl.Lookup(n + ".html")
|
|
}
|
|
if found {
|
|
b := bp.GetBuffer()
|
|
defer bp.PutBuffer(b)
|
|
|
|
if err := templ.Execute(b, context); err != nil {
|
|
return "", err
|
|
}
|
|
|
|
if _, ok := templ.(*texttemplate.Template); ok {
|
|
return b.String(), nil
|
|
}
|
|
|
|
return template.HTML(b.String()), nil
|
|
|
|
}
|
|
}
|
|
|
|
return "", fmt.Errorf("Partial %q not found", name)
|
|
}
|