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#!/bin/sh
#
# Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#
# Shell script for a fast parallel forest command
tmp=/tmp/forest.$$
rm -f -r ${tmp}
mkdir -p ${tmp}
# Remove tmp area on A. B. Normal termination
trap 'rm -f -r ${tmp}' KILL
trap 'rm -f -r ${tmp}' EXIT
# Only look in specific locations for possible forests (avoids long searches)
pull_default=""
if [ "$1" = "clone" -o "$1" = "fclone" ] ; then
subrepos="corba jaxp jaxws langtools jdk hotspot"
if [ -f .hg/hgrc ] ; then
pull_default=`hg paths default`
fi
if [ "${pull_default}" = "" ] ; then
echo "ERROR: Need initial clone with 'hg paths default' defined"
exit 1
fi
repos=""
for i in ${subrepos} ; do
if [ ! -f ${i}/.hg/hgrc ] ; then
repos="${repos} ${i}"
fi
done
at_a_time=2
else
hgdirs=`ls -d ./.hg ./*/.hg ./*/*/.hg ./*/*/*/.hg ./*/*/*/*/.hg 2>/dev/null`
# Derive repository names from the .hg directory locations
repos=""
for i in ${hgdirs} ; do
repos="${repos} `echo ${i} | sed -e 's@/.hg$@@'`"
done
at_a_time=8
fi
# Any repos to deal with?
if [ "${repos}" = "" ] ; then
echo "No repositories to process."
exit
fi
# Echo out what repositories we will process
echo "# Repos: ${repos}"
# Run the supplied command on all repos in parallel, save output until end
n=0
for i in ${repos} ; do
echo "Starting on ${i}"
n=`expr ${n} '+' 1`
(
(
if [ "$1" = "clone" -o "$1" = "fclone" ] ; then
cline="hg $* ${pull_default}/${i} ${i}"
echo "# ${cline}"
( eval "${cline}" )
else
cline="hg $*"
echo "# cd ${i} && ${cline}"
( cd ${i} && eval "${cline}" )
fi
echo "# exit code $?"
) > ${tmp}/repo.${n} 2>&1 ; cat ${tmp}/repo.${n} ) &
if [ `expr ${n} '%' ${at_a_time}` -eq 0 ] ; then
sleep 5
fi
done
# Wait for all hg commands to complete
wait
# Cleanup
rm -f -r ${tmp}
# Terminate with exit 0 all the time (hard to know when to say "failed")
exit 0
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