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// Copyright 2011 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 appengine
package main
// This file replaces main.go when running godoc under app-engine.
// See README.godoc-app for details.
import (
"archive/zip"
"log"
"net/http"
"path"
"regexp"
"golang.org/x/tools/godoc"
"golang.org/x/tools/godoc/dl"
"golang.org/x/tools/godoc/proxy"
"golang.org/x/tools/godoc/short"
"golang.org/x/tools/godoc/vfs"
"golang.org/x/tools/godoc/vfs/mapfs"
"golang.org/x/tools/godoc/vfs/zipfs"
"google.golang.org/appengine"
)
func init() {
enforceHosts = !appengine.IsDevAppServer()
playEnabled = true
log.Println("initializing godoc ...")
log.Printf(".zip file = %s", zipFilename)
log.Printf(".zip GOROOT = %s", zipGoroot)
log.Printf("index files = %s", indexFilenames)
goroot := path.Join("/", zipGoroot) // fsHttp paths are relative to '/'
// read .zip file and set up file systems
const zipfile = zipFilename
rc, err := zip.OpenReader(zipfile)
if err != nil {
log.Fatalf("%s: %s\n", zipfile, err)
}
// rc is never closed (app running forever)
fs.Bind("/", zipfs.New(rc, zipFilename), goroot, vfs.BindReplace)
fs.Bind("/lib/godoc", vfs.OS("/usr/share/golang-golang-x-tools/godoc/"), "/", vfs.BindReplace)
corpus := godoc.NewCorpus(fs)
corpus.Verbose = false
corpus.MaxResults = 10000 // matches flag default in main.go
corpus.IndexEnabled = true
corpus.IndexFiles = indexFilenames
if err := corpus.Init(); err != nil {
log.Fatal(err)
}
corpus.IndexDirectory = indexDirectoryDefault
go corpus.RunIndexer()
pres = godoc.NewPresentation(corpus)
pres.TabWidth = 8
pres.ShowPlayground = true
pres.ShowExamples = true
pres.DeclLinks = true
pres.NotesRx = regexp.MustCompile("BUG")
readTemplates(pres, true)
mux := registerHandlers(pres)
dl.RegisterHandlers(mux)
short.RegisterHandlers(mux)
// Register /compile and /share handlers against the default serve mux
// so that other app modules can make plain HTTP requests to those
// hosts. (For reasons, HTTPS communication between modules is broken.)
proxy.RegisterHandlers(http.DefaultServeMux)
log.Println("godoc initialization complete")
}
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