+fail () {
+ echo >&2 "jpctb: $*"
+ exit 127
+}
+badusage () {
+ fail "bad usage: $*"
+}
+
+while [ $# -ge 1 ]; do
+ case "$1" in
+ -) shift; break;;
+ --jpctb)
+ shift
+ srcjardir="$1"
+ shift || badusage "--jpctb needs a value"
+ ;;
+ -*) badusage "unknown option \`$1'"
+ ;;
+ *)
+ break
+ esac
+done
+
+if [ $# -lt 1 ]; then usage; badusage "need path to yohoho"; exit 127; fi
+
+yohoho="$1"; shift
+
+#---------- find ourselves ----------
+
+jpctbdir="$0"
+jpctbdir="${jpctbdir%/*}"
+
+case "$jpctbdir" in
+/*) ;;
+*) jpctbdir="$PWD/$jpctbdir" ;;
+esac
+
+if [ x"$srcjardir" = x ]; then
+ srcjardir="$jpctbdir"
+fi
+
+#---------- find YPP client and the Java installation it uses ----------
+
+yppdir="${yohoho%/*}"
+
+cat <<END
+jpctb:
+ jpctb tree: "$jpctbdir"
+ yohoho: "$yohoho"
+END
+
+if [ -x "$yppdir/java/bin/java" ]; then
+ if [ -d "$yppdir/java/jre" ]; then
+ echo " yohoho/java/bin and yohoho/java/jre exist, good"
+ javadir="$yppdir/java"
+ else
+ absjava=`readlink -f "$javadir/bin/java"`
+ cat <<END
+ yohoho/java/bin exists but yohoho/java/jre does not
+ abs. java: "$absjava"
+END
+ case "$absjava" in
+ */jre/bin/java)
+ echo " found jre directory, good"
+ javadir="${absjava%/jre/bin/java}"
+ ;;
+ *)
+ echo " java binary not in jre dir as expected, hmm."
+ ;;
+ esac
+ fi
+fi
+
+if [ "x$javadir" = x ] && [ x"$JAVA_HOME" != x ] && \
+ [ -x "$JAVA_HOME/bin/java" ]; then
+cat <<END
+ yohoho/java/bin/java nonexistent or unsuitable, trying JAVA_HOME"
+ JAVA_HOME: "$JAVA_HOME"
+END
+ if [ -d "$JAVA_HOME/jre" ]; then
+ javadir="$JAVA_HOME"
+ else
+ echo " JAVA_HOME has no jre subdirectory, hmm."
+ fi
+fi
+
+openjdk=/usr/lib/jvm/java-6-openjdk
+
+if [ "x$javadir" = x ] && [ -x $openjdk/bin/java ]; then
+ echo " using openjdk, hopefully it will work with YPP!"
+ javadir=$openjdk
+fi
+
+if [ "x$javadir" = x ]; then
+ fail "could not find java runtime system
+ please check that $yppdir/java points to your Java installation"
+fi
+
+case "$javadir" in
+/usr) fail "javadir is still /usr (and even found /usr/jre!)
+ please make $yppdir/java point somewhere more sensible and/or
+ reinstall YPP not telling it your java is in /usr. sorry." ;;
+/*) ;;
+*) javadir="$PWD/$javadir" ;;
+esac