mirror of
https://github.com/langhuihui/monibuca.git
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86 lines
2.6 KiB
Go
86 lines
2.6 KiB
Go
// Copyright 2017 Google Inc. 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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//
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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 driver
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import (
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"embed"
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"fmt"
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"html/template"
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"os"
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"sync"
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"m7s.live/v5/plugin/debug/pkg/internal/report"
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)
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var (
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htmlTemplates *template.Template // Lazily loaded templates
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htmlTemplateInit sync.Once
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)
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// getHTMLTemplates returns the set of HTML templates used by pprof,
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// initializing them if necessary.
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func getHTMLTemplates() *template.Template {
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htmlTemplateInit.Do(func() {
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htmlTemplates = template.New("templategroup")
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addTemplates(htmlTemplates)
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report.AddSourceTemplates(htmlTemplates)
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})
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return htmlTemplates
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}
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//go:embed html
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var embeddedFiles embed.FS
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// addTemplates adds a set of template definitions to templates.
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func addTemplates(templates *template.Template) {
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// Load specified file.
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loadFile := func(fname string) string {
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data, err := embeddedFiles.ReadFile(fname)
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if err != nil {
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fmt.Fprintf(os.Stderr, "internal/driver: embedded file %q not found\n",
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fname)
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os.Exit(1)
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}
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return string(data)
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}
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loadCSS := func(fname string) string {
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return `<style type="text/css">` + "\n" + loadFile(fname) + `</style>` + "\n"
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}
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loadJS := func(fname string) string {
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return `<script>` + "\n" + loadFile(fname) + `</script>` + "\n"
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}
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// Define a named template with specified contents.
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def := func(name, contents string) {
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sub := template.New(name)
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template.Must(sub.Parse(contents))
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template.Must(templates.AddParseTree(name, sub.Tree))
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}
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// Embedded files.
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def("css", loadCSS("html/common.css"))
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def("header", loadFile("html/header.html"))
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def("graph", loadFile("html/graph.html"))
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def("graph_css", loadCSS("html/graph.css"))
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def("script", loadJS("html/common.js"))
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def("top", loadFile("html/top.html"))
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def("sourcelisting", loadFile("html/source.html"))
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def("plaintext", loadFile("html/plaintext.html"))
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// TODO: Rename "stacks" to "flamegraph" to seal moving off d3 flamegraph.
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def("stacks", loadFile("html/stacks.html"))
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def("stacks_css", loadCSS("html/stacks.css"))
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def("stacks_js", loadJS("html/stacks.js"))
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}
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