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