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godoc: setup script for app engine, cleanups
- automated app-engine setup with bash script - added README.godoc-app - removed orphaned files in misc/godoc R=rsc CC=golang-dev https://golang.org/cl/5231042
This commit is contained in:
Robert Griesemer
parent
791b2a498e
commit
787f439733
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Instructions to get an initial godoc running on a local app engine emulator
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---------------------------------------------------------------------------
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To run godoc under the app engine emulator, create a ("goroot") godoc
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directory that contains the app.yaml file, the doc and lib directories
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from the Go distribution, as well as a godoc directory with the godoc
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sources from src/cmd/godoc. In the godoc source directory, replace
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main.go with init.go. The directory structure should look as follows:
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godoc // "goroot" directory
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app.yaml // app engine control file
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doc // goroot/doc directory
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favicon.ico
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godoc // contains godoc sources
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godoc.go // unchanged godoc file
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init.go // this file instead of godoc/main.go
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... // remaining godoc files
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lib // goroot/lib directory
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Run app engine emulator locally: dev_appserver.py -a <hostname> godoc
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where godoc is the top-level "goroot" directory. The godoc home page
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is then served at: <hostname>:8080 .
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# Copyright 2011 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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application: godoc
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version: 1
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runtime: go
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api_version: 1
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handlers:
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- url: /.*
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script: _go_app
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// Copyright 2011 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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// This file replaces main.go when running godoc under the app engine emulator.
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// See the README file for instructions.
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package main
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import (
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"http"
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"log"
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"os"
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"path/filepath"
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)
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func serveError(w http.ResponseWriter, r *http.Request, relpath string, err os.Error) {
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contents := applyTemplate(errorHTML, "errorHTML", err) // err may contain an absolute path!
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w.WriteHeader(http.StatusNotFound)
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servePage(w, "File "+relpath, "", "", contents)
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}
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func init() {
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// set goroot
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cwd, err := os.Getwd()
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if err != nil {
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log.Fatalf("cwd: %s", err)
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}
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log.Printf("cwd = %s", cwd)
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*goroot = filepath.Clean(cwd)
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initHandlers()
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readTemplates()
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registerPublicHandlers(http.DefaultServeMux)
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}
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84
src/cmd/godoc/README.godoc-app
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84
src/cmd/godoc/README.godoc-app
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Copyright 2011 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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godoc on appengine
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------------------
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(documentation in progress)
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Prerequisites
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-------------
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* Go appengine SDK 1.5.3 - 2011-08-17
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http://code.google.com/appengine/downloads.html#Google_App_Engine_SDK_for_Go
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* go_appengine_sdk_darwin_amd64-1.5.3.zip
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Go sources at tip under $GOROOT
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Directory structure
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-------------------
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* Let $APPDIR be the directory containing the app engine files.
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(e.g., $APPDIR=$HOME/godoc-app)
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* $APPDIR contains the following entries (this may change depending on
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app-engine release and version of godoc):
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alt/
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archive/
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go/
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ast/
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doc/
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parser/
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...
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http/
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index/suffixarray/
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mime/
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path/filepath/
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sort/
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strings/
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template/
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url/
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app.yaml
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godoc.zip
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godoc/
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index.split.*
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* The app.yaml file is set up per app engine documentation.
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For instance:
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application: godoc-app
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version: 1-5-4
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runtime: go
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api_version: 2
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handlers:
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- url: /.*
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script: _go_app
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* The godoc/ directory contains a copy of the files under $GOROOT/src/cmd/godoc
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with modifications:
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- doc.go is excluded (it belongs to pseudo-package ÒdocumentationÓ)
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- main.go is excluded (appinit.go is taking its place)
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Additional manual modifications are required to refer to the alt/ packages
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where the app-engine library is not up-to-date with the godoc version.
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* The alt/ directory contains up-to-date copies of Go packages that a tip-based
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godoc is dependent on but which do not yet exist in the current app-engine SDK.
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Configuring godoc
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-----------------
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Run
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bash setup-godoc-app.bash
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to create the godoc.zip, index.split.*, and godoc/appconfig.go files
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based on $GOROOT and $APPDIR. See the script for details on usage.
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// Copyright 2011 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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// This file contains configuration information used by
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// godoc when running on app engine. Adjust as needed
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// (typically when the .zip file changes).
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package main
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const (
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// zipFilename is the name of the .zip file
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// containing the file system served by godoc.
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zipFilename = "godoc.zip"
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// zipGoroot is the path of the goroot directory
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// in the .zip file.
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zipGoroot = "/home/user/go"
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// If indexFilenames != "", the search index is
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// initialized with the index stored in these
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// files (otherwise it will be built at run-time,
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// eventually). indexFilenames is a glob pattern;
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// the specified files are concatenated in sorted
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// order (by filename).
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// app-engine limit: file sizes must be <= 10MB;
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// use "split -b8m indexfile index.split." to get
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// smaller files.
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indexFilenames = "index.split.*"
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)
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121
src/cmd/godoc/setup-godoc-app.bash
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121
src/cmd/godoc/setup-godoc-app.bash
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#!/usr/bin/env bash
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# Copyright 2011 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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# This script creates the .zip, index, and configuration files for running
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# godoc on app-engine.
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#
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# If an argument is provided it is assumed to be the app-engine godoc directory.
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# Without an argument, $APPDIR is used instead. If GOROOT is not set, the
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# current working directory is assumed to be $GOROOT. Various sanity checks
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# prevent accidents.
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#
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# The script creates a .zip file representing the $GOROOT file system
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# and computes the correspondig search index files. These files are then
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# copied to $APPDIR. A corresponding godoc configuration file is created
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# in $APPDIR/appconfig.go.
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ZIPFILE=godoc.zip
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INDEXFILE=godoc.index
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SPLITFILES=index.split.
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CONFIGFILE=godoc/appconfig.go
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error() {
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echo "error: $1"
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exit 2
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}
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getArgs() {
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if [ -z $GOROOT ]; then
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GOROOT=$(pwd)
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echo "GOROOT not set, using cwd instead"
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fi
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if [ -z $APPDIR ]; then
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if [ $# == 0 ]; then
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error "APPDIR not set, and no argument provided"
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fi
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APPDIR=$1
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echo "APPDIR not set, using argument instead"
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fi
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# safety checks
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if [ ! -d $GOROOT ]; then
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error "$GOROOT is not a directory"
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fi
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if [ ! -x $GOROOT/src/cmd/godoc/godoc ]; then
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error "$GOROOT/src/cmd/godoc/godoc does not exist or is not executable"
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fi
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if [ ! -d $APPDIR ]; then
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error "$APPDIR is not a directory"
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fi
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if [ ! -e $APPDIR/app.yaml ]; then
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error "$APPDIR is not an app-engine directory; missing file app.yaml"
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fi
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if [ ! -d $APPDIR/godoc ]; then
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error "$APPDIR is missing directory godoc"
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fi
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# reporting
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echo "GOROOT = $GOROOT"
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echo "APPDIR = $APPDIR"
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}
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cleanup() {
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echo "*** cleanup $APPDIR"
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rm $APPDIR/$ZIPFILE
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rm $APPDIR/$INDEXFILE
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rm $APPDIR/$SPLITFILES*
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rm $APPDIR/$CONFIGFILE
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}
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makeZipfile() {
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echo "*** make $APPDIR/$ZIPFILE"
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zip -q -r $APPDIR/$ZIPFILE $GOROOT -i \*.go -i \*.html -i \*.css -i \*.js -i \*.txt -i \*.c -i \*.h -i \*.s -i \*.png -i \*.jpg -i \*.sh -i favicon.ico
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}
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makeIndexfile() {
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echo "*** make $APPDIR/$INDEXFILE"
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OUT=/tmp/godoc.out
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$GOROOT/src/cmd/godoc/godoc -write_index -index_files=$APPDIR/$INDEXFILE -zip=$APPDIR/$ZIPFILE 2> $OUT
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if [ $? != 0 ]; then
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error "$GOROOT/src/cmd/godoc/godoc failed - see $OUT for details"
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fi
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}
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splitIndexfile() {
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echo "*** split $APPDIR/$INDEXFILE"
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split -b8m $APPDIR/$INDEXFILE $APPDIR/$SPLITFILES
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}
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makeConfigfile() {
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echo "*** make $APPDIR/$CONFIGFILE"
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cat > $APPDIR/$CONFIGFILE <<EOF
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package main
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// GENERATED FILE - DO NOT MODIFY BY HAND.
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// (generated by $GOROOT/src/cmd/godoc/setup-godoc-app.bash)
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const (
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// .zip filename
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zipFilename = "$ZIPFILE"
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// goroot directory in .zip file
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zipGoroot = "$GOROOT"
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// glob pattern describing search index files
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// (if empty, the index is built at run-time)
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indexFilenames = "$SPLITFILES*"
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)
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EOF
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}
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getArgs "$@"
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cleanup
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makeZipfile
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makeIndexfile
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splitIndexfile
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makeConfigfile
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echo "*** setup complete"
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