80 lines
2.0 KiB
Go
80 lines
2.0 KiB
Go
// Package minify removes superfluous data from a variety of web formats
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// without modifying their behavior in web browsers. This plugin is useful for
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// reducing bandwidth usage, but should be disabled for development. This can
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// be accomplished by conditionally excluding it using the "condition" filter.
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package minify
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import (
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"bytes"
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"path/filepath"
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min "github.com/tdewolff/minify/v2"
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"github.com/tdewolff/minify/v2/css"
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"github.com/tdewolff/minify/v2/html"
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"github.com/tdewolff/minify/v2/js"
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"github.com/tdewolff/minify/v2/json"
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"github.com/tdewolff/minify/v2/svg"
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"github.com/tdewolff/minify/v2/xml"
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"git.foosoft.net/alex/goldsmith"
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"git.foosoft.net/alex/goldsmith/filters/wildcard"
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)
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// Minify chainable context.
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type Minify struct{}
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// New creates a new instance of the Minify plugin
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func New() *Minify {
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return new(Minify)
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}
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func (*Minify) Name() string {
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return "minify"
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}
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func (*Minify) Initialize(context *goldsmith.Context) error {
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context.Filter(wildcard.New("**/*.css", "**/*.html", "**/*.htm", "**/*.js", "**/*.svg", "**/*.json", "**/*.xml"))
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return nil
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}
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func (*Minify) Process(context *goldsmith.Context, inputFile goldsmith.File) error {
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if outputFile := context.RetrieveCachedFile(inputFile.Path(), inputFile); outputFile != nil {
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outputFile.CopyProps(inputFile)
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context.DispatchFile(outputFile)
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return nil
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}
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var (
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buff bytes.Buffer
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err error
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)
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switch m := min.New(); filepath.Ext(inputFile.Path()) {
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case ".css":
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err = css.Minify(m, &buff, inputFile, nil)
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case ".html", ".htm":
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err = html.Minify(m, &buff, inputFile, nil)
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case ".js":
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err = js.Minify(m, &buff, inputFile, nil)
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case ".json":
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err = json.Minify(m, &buff, inputFile, nil)
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case ".svg":
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err = svg.Minify(m, &buff, inputFile, nil)
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case ".xml":
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err = xml.Minify(m, &buff, inputFile, nil)
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}
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if err != nil {
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return err
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}
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outputFile, err := context.CreateFileFromReader(inputFile.Path(), &buff)
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if err != nil {
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return err
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}
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outputFile.CopyProps(inputFile)
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context.DispatchAndCacheFile(outputFile, inputFile)
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return nil
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}
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