128 lines
3.1 KiB
Go
128 lines
3.1 KiB
Go
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// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build ignore
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// Command makestatic reads a set of files and writes a Go source file to "static.go"
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// that declares a map of string constants containing contents of the input files.
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// It is intended to be invoked via "go generate" (directive in "gen.go").
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package main
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import (
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"bytes"
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"fmt"
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"go/format"
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"io/ioutil"
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"os"
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"time"
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"unicode/utf8"
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)
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var files = []string{
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"analysis/call3.png",
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"analysis/call-eg.png",
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"analysis/callers1.png",
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"analysis/callers2.png",
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"analysis/chan1.png",
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"analysis/chan2a.png",
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"analysis/chan2b.png",
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"analysis/error1.png",
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"analysis/help.html",
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"analysis/ident-def.png",
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"analysis/ident-field.png",
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"analysis/ident-func.png",
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"analysis/ipcg-func.png",
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"analysis/ipcg-pkg.png",
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"analysis/typeinfo-pkg.png",
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"analysis/typeinfo-src.png",
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"callgraph.html",
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"codewalk.html",
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"codewalkdir.html",
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"dirlist.html",
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"error.html",
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"example.html",
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"godoc.html",
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"godocs.js",
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"images/minus.gif",
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"images/plus.gif",
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"images/treeview-black-line.gif",
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"images/treeview-black.gif",
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"images/treeview-default-line.gif",
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"images/treeview-default.gif",
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"images/treeview-gray-line.gif",
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"images/treeview-gray.gif",
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"implements.html",
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"jquery.js",
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"jquery.treeview.css",
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"jquery.treeview.edit.js",
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"jquery.treeview.js",
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"methodset.html",
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"opensearch.xml",
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"package.html",
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"package.txt",
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"play.js",
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"playground.js",
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"search.html",
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"search.txt",
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"searchcode.html",
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"searchdoc.html",
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"searchtxt.html",
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"style.css",
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}
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func main() {
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if err := makestatic(); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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}
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func makestatic() error {
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f, err := os.Create("static.go")
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if err != nil {
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return err
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}
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defer f.Close()
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buf := new(bytes.Buffer)
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fmt.Fprintf(buf, "%v\n\n%v\n\npackage static\n\n", license, warning)
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fmt.Fprintf(buf, "var Files = map[string]string{\n")
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for _, fn := range files {
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b, err := ioutil.ReadFile(fn)
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if err != nil {
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return err
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}
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fmt.Fprintf(buf, "\t%q: ", fn)
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if utf8.Valid(b) {
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fmt.Fprintf(buf, "`%s`", sanitize(b))
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} else {
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fmt.Fprintf(buf, "%q", b)
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}
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fmt.Fprintln(buf, ",\n")
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}
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fmt.Fprintln(buf, "}")
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fmtbuf, err := format.Source(buf.Bytes())
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if err != nil {
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return err
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}
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return ioutil.WriteFile("static.go", fmtbuf, 0666)
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}
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// sanitize prepares a valid UTF-8 string as a raw string constant.
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func sanitize(b []byte) []byte {
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// Replace ` with `+"`"+`
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b = bytes.Replace(b, []byte("`"), []byte("`+\"`\"+`"), -1)
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// Replace BOM with `+"\xEF\xBB\xBF"+`
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// (A BOM is valid UTF-8 but not permitted in Go source files.
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// I wouldn't bother handling this, but for some insane reason
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// jquery.js has a BOM somewhere in the middle.)
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return bytes.Replace(b, []byte("\xEF\xBB\xBF"), []byte("`+\"\\xEF\\xBB\\xBF\"+`"), -1)
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}
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const warning = `// Code generated by "makestatic"; DO NOT EDIT.`
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var license = fmt.Sprintf(`// Copyright %d The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.`, time.Now().UTC().Year())
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