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test_install_rubygems_scriptbuilder.sh
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test_install_rubygems_scriptbuilder.sh
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#!/bin/bash
set +u
shopt -s xpg_echo
shopt -s expand_aliases
unset PATH JAVA_HOME LD_LIBRARY_PATH
function abort {
echo "aborting: $@" 1>&2
exit 1
}
function default {
export INSTANCE_NAME="install_rubygems"
export INSTANCE_HOME="/tmp/$INSTANCE_NAME"
export LOG_DIR="$INSTANCE_HOME"
return $?
}
function install_rubygems {
return $?
}
function findPid {
unset FOUND_PID;
[ $# -eq 1 ] || {
abort "findPid requires a parameter of pattern to match"
return 1
}
local PATTERN="$1"; shift
local _FOUND=`ps auxwww|grep "$PATTERN"|grep -v " $0"|grep -v grep|grep -v $$|awk '{print $2}'`
[ -n "$_FOUND" ] && {
export FOUND_PID=$_FOUND
return 0
} || {
return 1
}
}
function forget {
unset FOUND_PID;
[ $# -eq 3 ] || {
abort "forget requires parameters INSTANCE_NAME SCRIPT LOG_DIR"
return 1
}
local INSTANCE_NAME="$1"; shift
local SCRIPT="$1"; shift
local LOG_DIR="$1"; shift
mkdir -p $LOG_DIR
findPid $INSTANCE_NAME
[ -n "$FOUND_PID" -a -f $LOG_DIR/stdout.log ] && {
echo $INSTANCE_NAME already running pid $FOUND_PID
return 1;
} || {
nohup $SCRIPT >$LOG_DIR/stdout.log 2>$LOG_DIR/stderr.log &
RETURN=$?
# this is generally followed by findPid, so we shouldn't exit
# immediately as the proc may not have registered in ps, yet
test $RETURN && sleep 1
return $RETURN;
}
}
export PATH=/usr/ucb/bin:/bin:/sbin:/usr/bin:/usr/sbin
case $1 in
init)
default || exit 1
install_rubygems || exit 1
mkdir -p $INSTANCE_HOME
# create runscript header
cat > $INSTANCE_HOME/install_rubygems.sh <<-'END_OF_JCLOUDS_SCRIPT'
#!/bin/bash
set +u
shopt -s xpg_echo
shopt -s expand_aliases
PROMPT_COMMAND='echo -ne \"\033]0;install_rubygems\007\"'
export PATH=/usr/ucb/bin:/bin:/sbin:/usr/bin:/usr/sbin
export INSTANCE_NAME='install_rubygems'
END_OF_JCLOUDS_SCRIPT
cat >> $INSTANCE_HOME/install_rubygems.sh <<-END_OF_JCLOUDS_SCRIPT
export INSTANCE_NAME='$INSTANCE_NAME'
export INSTANCE_HOME='$INSTANCE_HOME'
export LOG_DIR='$LOG_DIR'
END_OF_JCLOUDS_SCRIPT
# add desired commands from the user
cat >> $INSTANCE_HOME/install_rubygems.sh <<-'END_OF_JCLOUDS_SCRIPT'
cd $INSTANCE_HOME
rm -f $INSTANCE_HOME/rc
trap 'echo $?>$INSTANCE_HOME/rc' 0 1 2 3 15
if ! hash gem 2>/dev/null; then
(
export TAR_TEMP="$(mktemp -d)"
curl -q -s -S -L --connect-timeout 10 --max-time 600 --retry 20 -X GET http://production.cf.rubygems.org/rubygems/rubygems-1.8.10.tgz |(mkdir -p "${TAR_TEMP}" &&cd "${TAR_TEMP}" &&tar -xpzf -)
mkdir -p /tmp/rubygems
mv "${TAR_TEMP}"/*/* /tmp/rubygems
rm -rf "${TAR_TEMP}"
cd /tmp/rubygems
ruby setup.rb --no-format-executable
rm -fr /tmp/rubygems
)
fi
END_OF_JCLOUDS_SCRIPT
# add runscript footer
cat >> $INSTANCE_HOME/install_rubygems.sh <<-'END_OF_JCLOUDS_SCRIPT'
exit $?
END_OF_JCLOUDS_SCRIPT
chmod u+x $INSTANCE_HOME/install_rubygems.sh
;;
status)
default || exit 1
findPid $INSTANCE_NAME || exit 1
echo $FOUND_PID
;;
stop)
default || exit 1
findPid $INSTANCE_NAME || exit 1
[ -n "$FOUND_PID" ] && {
echo stopping $FOUND_PID
kill -9 $FOUND_PID
}
;;
start)
default || exit 1
forget $INSTANCE_NAME $INSTANCE_HOME/$INSTANCE_NAME.sh $LOG_DIR || exit 1
;;
stdout)
default || exit 1
cat $LOG_DIR/stdout.log
;;
stderr)
default || exit 1
cat $LOG_DIR/stderr.log
;;
exitstatus)
default || exit 1
[ -f $LOG_DIR/rc ] && cat $LOG_DIR/rc;;
tail)
default || exit 1
tail $LOG_DIR/stdout.log
;;
tailerr)
default || exit 1
tail $LOG_DIR/stderr.log
;;
run)
default || exit 1
$INSTANCE_HOME/$INSTANCE_NAME.sh
;;
esac
exit $?