8004145: New improved hgforest.sh, ctrl-c now properly terminates mercurial processes
Reviewed-by: ohair, erikj
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common/bin/hgforest.sh
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194
common/bin/hgforest.sh
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#!/bin/sh
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#
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# Copyright (c) 2009, 2012, 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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# Shell script for a fast parallel forest command
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command="$1"
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pull_extra_base="$2"
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# Python always buffers stdout significantly, thus we will not see any output from hg clone jdk,
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# until a lot of time has passed! By passing -u to python, we get incremental updates
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# on stdout. Much nicer.
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whichhg="`which hg`"
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if [ "${whichhg}" = "" ] ; then
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echo Cannot find hg!
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exit 1
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fi
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if [ "" = "$command" ] ; then
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echo No command to hg supplied!
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exit 1
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fi
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has_hash_bang="`head -n 1 "${whichhg}" | cut -b 1-2`"
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python=""
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bpython=""
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if [ "#!" = "$has_hash_bang" ] ; then
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python="`head -n 1 ${whichhg} | cut -b 3-`"
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bpython="`basename "$python"`"
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fi
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if [ "python" = "$bpython" -a -x "$python" ] ; then
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hg="${python} -u ${whichhg}"
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else
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echo Cannot find python from hg launcher. Running plain hg, which probably has buffered stdout.
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hg="hg"
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fi
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# Clean out the temporary directory that stores the pid files.
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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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safe_interrupt () {
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if [ -d ${tmp} ]; then
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if [ "`ls ${tmp}`" != "" ]; then
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echo "Waiting for processes ( `cat ${tmp}/* | tr '\n' ' '`) to terminate nicely!"
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sleep 1
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# Pipe stderr to dev/null to silence kill, that complains when trying to kill
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# a subprocess that has already exited.
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kill -TERM `cat ${tmp}/* | tr '\n' ' '` 2> /dev/null
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wait
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echo Interrupt complete!
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fi
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fi
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rm -f -r ${tmp}
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exit 1
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}
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nice_exit () {
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if [ -d ${tmp} ]; then
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if [ "`ls ${tmp}`" != "" ]; then
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wait
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fi
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fi
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rm -f -r ${tmp}
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}
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trap 'safe_interrupt' INT QUIT
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trap 'nice_exit' EXIT
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# Only look in specific locations for possible forests (avoids long searches)
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pull_default=""
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repos=""
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repos_extra=""
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if [ "${command}" = "clone" -o "${command}" = "fclone" ] ; then
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subrepos="corba jaxp jaxws langtools jdk hotspot"
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if [ -f .hg/hgrc ] ; then
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pull_default=`hg paths default`
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if [ "${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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fi
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if [ "${pull_default}" = "" ] ; then
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echo "ERROR: Need initial repository to use this script"
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exit 1
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fi
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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} ${i}"
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fi
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done
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if [ "${pull_extra_base}" != "" ] ; then
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subrepos_extra="jdk/src/closed jdk/make/closed jdk/test/closed hotspot/make/closed hotspot/src/closed hotspot/test/closed deploy install sponsors pubs"
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pull_default_tail=`echo ${pull_default} | sed -e 's@^.*://[^/]*/\(.*\)@\1@'`
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pull_extra="${pull_extra_base}/${pull_default_tail}"
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for i in ${subrepos_extra} ; do
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if [ ! -f ${i}/.hg/hgrc ] ; then
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repos_extra="${repos_extra} ${i}"
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fi
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done
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fi
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at_a_time=2
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# Any repos to deal with?
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if [ "${repos}" = "" -a "${repos_extra}" = "" ] ; then
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exit
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fi
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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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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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for i in ${repos} ; do
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if [ -h ${i}/.hg/store/lock -o -f ${i}/.hg/store/lock ] ; then
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locked="${i} ${locked}"
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fi
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done
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at_a_time=8
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# Any repos to deal with?
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if [ "${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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if [ "${locked}" != "" ] ; then
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echo "These repositories are locked: ${locked}"
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exit
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fi
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fi
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# Echo out what repositories we do a command on.
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echo "# Repositories: ${repos} ${repos_extra}"
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echo
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# Run the supplied command on all repos in parallel.
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n=0
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for i in ${repos} ${repos_extra} ; do
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n=`expr ${n} '+' 1`
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repopidfile=`echo ${i} | sed -e 's@./@@' -e 's@/@_@g'`
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reponame=`echo ${i} | sed -e :a -e 's/^.\{1,20\}$/ &/;ta'`
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pull_base="${pull_default}"
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for j in $repos_extra ; do
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if [ "$i" = "$j" ] ; then
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pull_base="${pull_extra}"
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fi
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done
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(
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(
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if [ "${command}" = "clone" -o "${command}" = "fclone" ] ; then
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pull_newrepo="`echo ${pull_base}/${i} | sed -e 's@\([^:]/\)//*@\1@g'`"
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echo ${hg} clone ${pull_newrepo} ${i}
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${hg} clone ${pull_newrepo} ${i} &
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else
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echo "cd ${i} && ${hg} $*"
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cd ${i} && ${hg} "$@" &
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fi
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echo $! > ${tmp}/${repopidfile}.pid
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) 2>&1 | sed -e "s@^@${reponame}: @") &
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if [ `expr ${n} '%' ${at_a_time}` -eq 0 ] ; then
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sleep 2
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echo Waiting 5 secs before spawning next background command.
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sleep 3
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fi
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done
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# Wait for all hg commands to complete
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wait
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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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@ -26,8 +26,8 @@
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#
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# Get clones of all nested repositories
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sh ./make/scripts/hgforest.sh clone $*
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sh ./common/bin/hgforest.sh clone "$@"
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# Update all existing repositories to the latest sources
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sh ./make/scripts/hgforest.sh pull -u
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sh ./common/bin/hgforest.sh pull -u
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