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https://github.com/gohugoio/hugo.git
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41a080b268
This commit adds a new `vars` option to both the Sass transpilers (Dart Sass and Libsass).
This means that you can pass a map with key/value pairs to the transpiler:
```handlebars
{{ $vars := dict "$color1" "blue" "$color2" "green" "$font_size" "24px" }}
{{ $cssOpts := (dict "transpiler" "dartsass" "outputStyle" "compressed" "vars" $vars ) }}
{{ $r := resources.Get "scss/main.scss" | toCSS $cssOpts }}
```
And the the variables will be available in the `hugo:vars` namespace. Example usage for Dart Sass:
```scss
@use "hugo:vars" as v;
p {
color: v.$color1;
font-size: v.$font_size;
}
```
Note that Libsass does not support the `use` keyword, so you need to `import` them as global variables:
```scss
@import "hugo:vars";
p {
color: $color1;
font-size: $font_size;
}
```
Hugo will:
* Add a missing leading `$` for the variable names if needed.
* Wrap the values in `unquote('VALUE')` (Sass built-in) to get proper handling of identifiers vs other strings.
This means that you can pull variables directly from e.g. the site config:
```toml
[params]
[params.sassvars]
color1 = "blue"
color2 = "green"
font_size = "24px"
image = "images/hero.jpg"
```
```handlebars
{{ $vars := site.Params.sassvars}}
{{ $cssOpts := (dict "transpiler" "dartsass" "outputStyle" "compressed" "vars" $vars ) }}
{{ $r := resources.Get "scss/main.scss" | toCSS $cssOpts }}
```
Fixes #10555
48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
// Copyright 2022 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sass
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import (
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"fmt"
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"sort"
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"strings"
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)
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const (
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HugoVarsNamespace = "hugo:vars"
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)
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func CreateVarsStyleSheet(vars map[string]string) string {
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if vars == nil {
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return ""
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}
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var varsStylesheet string
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var varsSlice []string
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for k, v := range vars {
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var prefix string
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if !strings.HasPrefix(k, "$") {
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prefix = "$"
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}
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// These variables can be a combination of Sass identifiers (e.g. sans-serif), which
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// should not be quoted, and URLs et, which should be quoted.
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// unquote() is knowing what to do with each.
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varsSlice = append(varsSlice, fmt.Sprintf("%s%s: unquote('%s');", prefix, k, v))
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}
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sort.Strings(varsSlice)
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varsStylesheet = strings.Join(varsSlice, "\n")
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return varsStylesheet
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}
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