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