text: #!/bin/bash -e
  #
  # This script rebuilds the generated code for the protocol buffers.
  # To run this you will need protoc and goprotobuf installed;
  # see https://github.com/golang/protobuf for instructions.
  
  PKG=google.golang.org/appengine
  
  function die() {
  	echo 1>&2 $*
  	exit 1
  }
  
  # Sanity check that the right tools are accessible.
  for tool in go protoc protoc-gen-go; do
  	q=$(which $tool) || die "didn't find $tool"
  	echo 1>&2 "$tool: $q"
  done
  
  echo -n 1>&2 "finding package dir... "
  pkgdir=$(go list -f '{{.Dir}}' $PKG)
  echo 1>&2 $pkgdir
  base=$(echo $pkgdir | sed "s,/$PKG\$,,")
  echo 1>&2 "base: $base"
  cd $base
  
  # Run protoc once per package.
  for dir in $(find $PKG/internal -name '*.proto' | xargs dirname | sort | uniq); do
  	echo 1>&2 "* $dir"
  	protoc --go_out=. $dir/*.proto
  done
  
  for f in $(find $PKG/internal -name '*.pb.go'); do
    # Remove proto.RegisterEnum calls.
    # These cause duplicate registration panics when these packages
    # are used on classic App Engine. proto.RegisterEnum only affects
    # parsing the text format; we don't care about that.
    # https://code.google.com/p/googleappengine/issues/detail?id=11670#c17
    sed -i '/proto.RegisterEnum/d' $f
  done
  