X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~yarrgweb/git?p=jarrg-owen.git;a=blobdiff_plain;f=jpctb;h=ee8ff628f2a77bfcd3a69fc15e1cbeeec7b6857a;hp=a2cb243e910b5754201bc56757f7b2e230e8a39a;hb=d261d8017da83e00b790beff084329a37c8cd617;hpb=f990674d59428070dc501681c7fafd6a2e7e07d7

diff --git a/jpctb b/jpctb
index a2cb243..ee8ff62 100755
--- a/jpctb
+++ b/jpctb
@@ -1,6 +1,30 @@
 #!/bin/bash -e
+
+# This is jpctb, a wrapper script for plumbing Ted Pearson's Java PCTB
+# client into a JVM on Linux.
+
+# This program is Free Software.  Copyright (C) 2009 Ian Jackson.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is fur-
+# nished to do so, subject to the following conditions:
+# 
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FIT-
+# NESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CON-
+# NECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
 usage () { cat <<END
-usage: .../jpctb /path/to/dir/with/PCTB*.jar /path/to/yohoho/yohoho [...]
+usage: .../jpctb /path/to/yohoho/yohoho [...]
 END
 }
 
@@ -9,9 +33,33 @@ fail () {
 	exit 127
 }
 
-if [ $# -lt 2 ]; then usage; fail 'bad usage'; exit 127; fi
+nojre () {
+	fail "couldn't find the right jre: $*
+ perhaps you should make ypp's java symlink (normally yohoho/java)
+ point to your jre, eg to /usr/lib/jvm/java-6-sun"
+}
+
+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
 
-srcjardir="$1"; shift
 yohoho="$1"; shift
 
 #---------- find ourselves ----------
@@ -24,45 +72,87 @@ 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%/*}"
 
+# this replicates the java-searching logic from yohoho/yohoho:
 if [ -x "$yppdir/java/bin/java" ]; then
-	javadir="$yppdir/java"
-elif [ x"$JAVA_HOME" != x ] && [ -x "$JAVA_HOME/bin/java" ]; then
-	javadir="$JAVA_HOME"
+	yppjava="$yppdir/java/bin/java"
+elif [ -x "$JAVA_HOME/bin/java" ]; then
+	yppjava="$JAVA_HOME/bin/java"
 else
-	fail "could not find java runtime system"
+	set +e
+	yppjava=`type -p java 2>&1`
+	set -e
+fi
+
+cat <<END
+jpctb:
+   jpctb tree:	 "$jpctbdir"
+   yohoho:       "$yohoho"
+   ypp dir:      "$yppdir"
+   ypp uses:     "$yppjava"
+END
+
+if ! [ -x "$yppjava" ]; then
+	nojre "bad java ypp"
+fi
+
+javadir="${yppjava#/bin/java}"
+if [ -x "$javadir/jre/bin/java" ]; then
+	echo "   java/ points to the jre, good"
+else
+	echo "   java/ has just the executable bin/java, trying readlink"
+	absjava=`readlink -f "$yppjava"`
+	echo "   abs. java:    \"$absjava\""
+	case "$absjava" in
+	*/jre/bin/java)
+		echo "   found jre directory, good"
+		javadir="${absjava%/jre/bin/java}"
+		;;
+	*)
+		nojre "java binary not in jre dir"
+		;;
+	esac
 fi
 
 case "$javadir" in
-/*)	;;
-*)	javadir="$PWD/$javadir" ;;
+''|/|/usr)	nojre "javadir is $javadir (and even found $javadir/jre!)" ;;
+/*)		;;
+*)		javadir="$PWD/$javadir" ;;
 esac
 
 jtmp="$jpctbdir/tmp"
 linkfarm="$jtmp/linkfarm"
 extdir="$jtmp/ext"
 
+export JPCTB_JRE="$javadir/jre"
+
 #---------- confirm for the user which paths we're using ----------
 
 cat <<END
-jpctb:
-   jpctb tree:	 "$jpctbdir"
-   yohoho:       "$yohoho"
    java:         "$javadir"
+   JRE:          "$JPCTB_JRE"
    PCTB jars:    "$srcjardir"
    jpctb tmpdir: "$jtmp"
 END
 
+#---------- run the control panel ----------
+
+"$javadir/bin/java" -jar "$srcjardir/PCTB-ControlPanel.jar"
+
 #---------- create the temporary are and link farm ----------
 
 rm -rf -- "$jtmp"
 mkdir -- "$jtmp" "$extdir" "$linkfarm"
 cp "$srcjardir"/PCTB*.jar "$extdir"
 
-lndir -silent "$javadir" "$linkfarm"
+cp -Rs "$javadir"/. "$linkfarm"/.
 
 #---------- edit the linkfarm to have our jvm wrapper ----------
 
@@ -70,7 +160,6 @@ wrapper="$linkfarm"/jre/bin/java
 rm -- "$wrapper"
 
 export JPCTB_EXTDIR="$extdir"
-export JPCTB_JRE="$javadir/jre"
 
 cat <<'END' >"$wrapper"
 #!/bin/bash