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// Copyright 2019 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 minifiers
import (
"github.com/gohugoio/hugo/common/maps"
"github.com/gohugoio/hugo/config"
"github.com/gohugoio/hugo/docshelper"
"github.com/gohugoio/hugo/parser"
"github.com/spf13/cast"
"github.com/mitchellh/mapstructure"
"github.com/tdewolff/minify/v2/css"
"github.com/tdewolff/minify/v2/html"
"github.com/tdewolff/minify/v2/js"
"github.com/tdewolff/minify/v2/json"
"github.com/tdewolff/minify/v2/svg"
"github.com/tdewolff/minify/v2/xml"
)
var defaultTdewolffConfig = tdewolffConfig{
HTML: html.Minifier{
KeepDocumentTags: true,
KeepConditionalComments: true,
KeepEndTags: true,
KeepDefaultAttrVals: true,
KeepWhitespace: false,
},
CSS: css.Minifier{
Precision: 0,
KeepCSS2: true,
},
JS: js.Minifier{},
JSON: json.Minifier{},
SVG: svg.Minifier{
Precision: 0,
},
XML: xml.Minifier{
KeepWhitespace: false,
},
}
type tdewolffConfig struct {
HTML html.Minifier
CSS css.Minifier
JS js.Minifier
JSON json.Minifier
SVG svg.Minifier
XML xml.Minifier
}
type minifyConfig struct {
// Whether to minify the published output (the HTML written to /public).
MinifyOutput bool
DisableHTML bool
DisableCSS bool
DisableJS bool
DisableJSON bool
DisableSVG bool
DisableXML bool
Tdewolff tdewolffConfig
}
var defaultConfig = minifyConfig{
Tdewolff: defaultTdewolffConfig,
}
func decodeConfig(cfg config.Provider) (conf minifyConfig, err error) {
conf = defaultConfig
// May be set by CLI.
conf.MinifyOutput = cfg.GetBool("minifyOutput")
v := cfg.Get("minify")
if v == nil {
return
}
// Legacy.
if b, ok := v.(bool); ok {
conf.MinifyOutput = b
return
}
m := maps.ToStringMap(v)
// Handle upstream renames.
if td, found := m["tdewolff"]; found {
tdm := maps.ToStringMap(td)
for _, key := range []string{"css", "svg"} {
if v, found := tdm[key]; found {
vm := maps.ToStringMap(v)
if vv, found := vm["decimal"]; found {
vvi := cast.ToInt(vv)
if vvi > 0 {
vm["precision"] = vvi
}
}
}
}
}
err = mapstructure.WeakDecode(m, &conf)
if err != nil {
return
}
return
}
func init() {
docsProvider := func() docshelper.DocProvider {
return docshelper.DocProvider{"config": map[string]any{"minify": parser.LowerCaseCamelJSONMarshaller{Value: defaultConfig}}}
}
docshelper.AddDocProviderFunc(docsProvider)
}
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