scripts/mir-setup/mir-choose-java

   1 #!/bin/sh
   2 # ianb@erislabs.net 20081202
   3 # configure a mir system for sun or gcj java
   4 # checkpoint code taken from zak's mir-setup
   5
   6 set -e
   7
   8 # NAME is used when called from mir-prepare
   9 NAME=""
  10
  11 CUR_CHECKPOINT=0
  12 checkpoint()
  13 {
  14   CUR_CHECKPOINT=$(($CUR_CHECKPOINT + 1))
  15   if [ -n "$START_CHECKPOINT" ]; then
  16     if [ "$CUR_CHECKPOINT" -lt "$START_CHECKPOINT" ]; then
  17       echo "${NAME}Skipping checkpoint $CUR_CHECKPOINT: $@"
  18       unset RUNNING
  19     else
  20       echo "${NAME}Running from checkpoint $CUR_CHECKPOINT: $@"
  21       RUNNING=1
  22     fi
  23   else
  24     echo "${NAME}Checkpoint $CUR_CHECKPOINT: $@"
  25     RUNNING=1
  26   fi
  27 }
  28
  29 optdie()
  30 {
  31   echo >&2 "$@";
  32   echo >&2 "Try $PROG --help";
  33   exit 1;
  34 }
  35
  36 usage() {
  37     echo >&2 "Usage: $PROG [options] sun|gcj"
  38     echo >&2 "  Configures java implementation to use with mir"
  39     echo >&2 "    -d|--debug                Debugging output, including 'set -x' shell trace"
  40     echo >&2 "    -p|--checkpoint <start>   Run from specified checkpoint after failed run"
  41     echo >&2 "    sun                       Use Sun Java (non-free)"
  42     echo >&2 "    gcj                       Use the GNU Java Compiler"
  43 }
  44
  45 if [ $# -lt 1 ]
  46 then
  47     usage
  48     exit 1
  49 fi
  50
  51 while [ $# != 0 ]; do
  52     case "$1" in
  53         -d|--debug)  set -x; DEBUG=1 ;;
  54         -p|--checkpoint) shift; START_CHECKPOINT="$1" ;;
  55         --subprocess) NAME="[mir-choose-java] " ;;
  56         -h|-?|--help) usage; exit 0 ;;
  57         -*) optdie "$PROG: unknown option $1" ;;
  58         sun) JAVA=sun ; break;;
  59         gcj) JAVA=gcj ; break;;
  60         *) optdie "$PROG: unexpected argument '$1'" ;;
  61     esac
  62     shift
  63 done
  64
  65 if [ $JAVA = sun ]
  66 then
  67     JAVANAME=java-6-sun
  68     PACKAGES="sun-java6-jdk sun-java6-jre"
  69     RTPATH=/usr/lib/jvm/java-6-sun/jre/lib/rt.jar
  70 else
  71     JAVANAME=java-gcj
  72     PACKAGES=gcj
  73     RTPATH=/usr/lib/jvm/java-1.5.0-gcj-4.3-1.5.0.0/jre/lib/rt.jar
  74 fi
  75
  76 JAVAHOME="/usr/lib/jvm/$JAVANAME"
  77
  78 if [ $JAVA = sun ]
  79 then
  80     checkpoint "Adding non-free archive for sun java"
  81     if [ -n "$RUNNING" ]
  82     then
  83         perl -pi.bak -e \
  84             'if(/^deb/ && !/security\.debian\.org/ && !/non-free/) { s/(main)/$1 contrib non-free/; }' \
  85             /etc/apt/sources.list
  86         apt-get update
  87     fi
  88 else
  89     # so checkpoint numbers don't differ
  90     checkpoint "Skipping non-free archive configuration - gcj is in main"
  91 fi
  92
  93 checkpoint "Installing packages"
  94 if [ -n "$RUNNING" ]
  95 then
  96     apt-get install $PACKAGES
  97     echo "You probably want to do 'apt-get clean'"
  98 fi
  99
 100 checkpoint "Selecting JDK"
 101 if [ -n "$RUNNING" ]
 102 then
 103     update-java-alternatives --set $JAVANAME || true
 104 fi
 105
 106 checkpoint "Configuring apache jakarta JVM"
 107 if [ -n "$RUNNING" ]
 108 then
 109     if grep -q '^workers.java_home' /etc/libapache2-mod-jk/workers.properties
 110     then
 111         perl -pi.bak -e 's,workers.java_home.*,workers.java_home='"$JAVAHOME"',;' \
 112           /etc/libapache2-mod-jk/workers.properties
 113     fi
 114 fi
 115
 116 checkpoint "Configuring tomcat JVM"
 117 if [ -n "$RUNNING" ]
 118 then
 119     TOMCATDEFAULTS=/etc/default/tomcat5.5
 120     if grep -q '^#\?JAVA_HOME' $TOMCATDEFAULTS
 121     then
 122         perl -pi.bak -e 's,^\#?JAVA_HOME.*,JAVA_HOME='"$JAVAHOME"',;' $TOMCATDEFAULTS
 123     else
 124         echo "JAVA_HOME=$JAVAHOME" >> $TOMCATDEFAULTS
 125     fi
 126 fi
 127
 128 checkpoint "Configuring /etc/mir-setup/lib/rt.jar symlink"
 129 if [ -n "$RUNNING" ]
 130 then
 131     mkdir -p /etc/mir-setup/lib
 132     ln -sf $RTPATH /etc/mir-setup/lib/rt.jar
 133 fi
 134
 135 checkpoint "Restarting tomcat and apache"
 136 if [ -n "$RUNNING" ]
 137 then
 138     invoke-rc.d tomcat5.5 force-reload
 139     invoke-rc.d apache2   force-reload
 140 fi
 141
 142 checkpoint "Finished!"