jdk8-mips64-public: common/bin/hgforest.sh@8e36a0fabf58 (annotated)

common/bin/hgforest.sh@8e36a0fabf58 (annotated)

common/bin/hgforest.sh

Tue, 18 Dec 2012 09:57:01 +0100

author: ohrstrom
date: Tue, 18 Dec 2012 09:57:01 +0100
changeset 538: 8e36a0fabf58
child 615: 8dd61906da5f
child 879: 9ed388a04fa7
permissions: -rw-r--r--

8004145: New improved hgforest.sh, ctrl-c now properly terminates mercurial processes.
Reviewed-by: ohair, erikj

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

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common/bin/hgforest.sh@8e36a0fabf58 (annotated)

common/bin/hgforest.sh