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#!/usr/bin/env bash
# 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.
# This script creates a complete godoc app in $APPDIR.
# It copies the cmd/godoc and src/pkg/go/... sources from GOROOT,
# synthesizes an app.yaml file, and creates the .zip, index, and
# configuration files.
#
# If an argument is provided it is assumed to be the app-engine godoc directory.
# Without an argument, $APPDIR is used instead. If GOROOT is not set, "go env"
# is consulted to find the $GOROOT.
#
# The script creates a .zip file representing the $GOROOT file system
# and computes the correspondig search index files. These files are then
# copied to $APPDIR. A corresponding godoc configuration file is created
# in $APPDIR/appconfig.go.
ZIPFILE=godoc.zip
INDEXFILE=godoc.index
SPLITFILES=index.split.
CONFIGFILE=godoc/appconfig.go
error() {
echo "error: $1"
exit 2
}
getArgs() {
if [ -z $GOROOT ]; then
GOROOT=$(go env GOROOT)
echo "GOROOT not set explicitly, using $GOROOT instead"
fi
if [ -z $APPDIR ]; then
if [ $# == 0 ]; then
error "APPDIR not set, and no argument provided"
fi
APPDIR=$1
echo "APPDIR not set, using argument instead"
fi
# safety checks
if [ ! -d $GOROOT ]; then
error "$GOROOT is not a directory"
fi
if [ ! -x $GOROOT/bin/godoc ]; then
error "$GOROOT/bin/godoc does not exist or is not executable"
fi
if [ -e $APPDIR ]; then
error "$APPDIR exists; check and remove it before trying again"
fi
# reporting
echo "GOROOT = $GOROOT"
echo "APPDIR = $APPDIR"
}
copyGodoc() {
echo "*** copy $GOROOT/src/cmd/godoc to $APPDIR/godoc"
cp -r $GOROOT/src/cmd/godoc $APPDIR/godoc
}
copyGoPackages() {
echo "*** copy $GOROOT/src/pkg/go to $APPDIR/newgo and rewrite imports"
cp -r $GOROOT/src/pkg/go $APPDIR/newgo
find $APPDIR/newgo -type d -name testdata | xargs rm -r
gofiles=$(find $APPDIR -name '*.go')
sed -i '' 's_^\(."\)\(go/[a-z]*\)"$_\1new\2"_' $gofiles
sed -i '' 's_^\(import "\)\(go/[a-z]*\)"$_\1new\2"_' $gofiles
}
makeAppYaml() {
echo "*** make $APPDIR/app.yaml"
cat > $APPDIR/app.yaml <<EOF
application: godoc
version: 1
runtime: go
api_version: go1
handlers:
- url: /.*
script: _go_app
EOF
}
makeZipfile() {
echo "*** make $APPDIR/$ZIPFILE"
zip -q -r $APPDIR/$ZIPFILE $GOROOT -i \*.go -i \*.html -i \*.xml -i \*.css -i \*.js -i \*.txt -i \*.c -i \*.h -i \*.s -i \*.png -i \*.jpg -i \*.sh -i \*.ico
}
makeIndexfile() {
echo "*** make $APPDIR/$INDEXFILE"
OUT=/tmp/godoc.out
$GOROOT/bin/godoc -write_index -index_files=$APPDIR/$INDEXFILE -zip=$APPDIR/$ZIPFILE 2> $OUT
if [ $? != 0 ]; then
error "$GOROOT/bin/godoc failed - see $OUT for details"
fi
}
splitIndexfile() {
echo "*** split $APPDIR/$INDEXFILE"
split -b8m $APPDIR/$INDEXFILE $APPDIR/$SPLITFILES
}
makeConfigfile() {
echo "*** make $APPDIR/$CONFIGFILE"
cat > $APPDIR/$CONFIGFILE <<EOF
package main
// GENERATED FILE - DO NOT MODIFY BY HAND.
// (generated by $GOROOT/src/cmd/godoc/setup-godoc-app.bash)
const (
// .zip filename
zipFilename = "$ZIPFILE"
// goroot directory in .zip file
zipGoroot = "$GOROOT"
// glob pattern describing search index files
// (if empty, the index is built at run-time)
indexFilenames = "$SPLITFILES*"
)
EOF
}
getArgs "$@"
set -e
mkdir $APPDIR
copyGodoc
copyGoPackages
makeAppYaml
makeZipfile
makeIndexfile
splitIndexfile
makeConfigfile
echo "*** setup complete"
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