mirror of https://github.com/gohugoio/hugo.git
41 lines
1.4 KiB
Go
41 lines
1.4 KiB
Go
// Copyright 2015 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 transform
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import (
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"bytes"
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"fmt"
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)
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// LiveReloadInject returns a function that can be used
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// to inject a script tag for the livereload JavaScript in a HTML document.
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func LiveReloadInject(port int) func(ct contentTransformer) {
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return func(ct contentTransformer) {
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endBodyTag := "</body>"
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match := []byte(endBodyTag)
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replaceTemplate := `<script data-no-instant>document.write('<script src="/livereload.js?port=%d&mindelay=10"></' + 'script>')</script>%s`
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replace := []byte(fmt.Sprintf(replaceTemplate, port, endBodyTag))
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newcontent := bytes.Replace(ct.Content(), match, replace, 1)
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if len(newcontent) == len(ct.Content()) {
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endBodyTag = "</BODY>"
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replace := []byte(fmt.Sprintf(replaceTemplate, port, endBodyTag))
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match := []byte(endBodyTag)
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newcontent = bytes.Replace(ct.Content(), match, replace, 1)
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}
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ct.Write(newcontent)
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}
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}
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