-#!/bin/bash
+#!/usr/bin/env bash
# Copyright 2009 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.
-rm -rf $GOROOT/pkg/[0-9a-zA-Z_]*
-rm -f $GOROOT/lib/*.[6a]
-for i in lib9 libbio libcgo libmach libregexp cmd pkg \
- ../misc/cgo/gmp ../misc/cgo/stdio \
- ../usr/r/rpc ../usr/dsymonds/iterable \
- ../usr/austin/eval ../usr/austin/ogle ../test/bench
-do(
- cd $i
- if test -f clean.bash; then
- bash clean.bash
- else
- make clean
- fi
-)done
+set -e
+
+if [ ! -f run.bash ]; then
+ echo 'clean.bash must be run from $GOROOT/src' 1>&2
+ exit 1
+fi
+export GOROOT="$(cd .. && pwd)"
+
+gobin="${GOROOT}"/bin
+if ! "$gobin"/go help >/dev/null 2>&1; then
+ echo 'cannot find go command; nothing to clean' >&2
+ exit 1
+fi
+
+"$gobin/go" clean -i std
+"$gobin/go" tool dist clean
+"$gobin/go" clean -i cmd