From fe66d2fc61e4d4fa9c82b715b500132d83a36377 Mon Sep 17 00:00:00 2001
From: Tom Copeland <tomcopeland@users.sourceforge.net>
Date: Mon, 17 Apr 2006 21:28:11 +0000
Subject: [PATCH] Nicer version cpd.sh from Jarkko

git-svn-id: https://pmd.svn.sourceforge.net/svnroot/pmd/trunk@4345 51baf565-9d33-0410-a72c-fc3788e3496d
---
 pmd/bin/cpd.sh | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/pmd/bin/cpd.sh b/pmd/bin/cpd.sh
index 8dc99cf838..e35be901d6 100755
--- a/pmd/bin/cpd.sh
+++ b/pmd/bin/cpd.sh
@@ -3,10 +3,14 @@
 ## This will work in the majority of shells out there...
 
 ## This will parse a directory named on the command line and produce a
-## cut and paste report for c++ files in that directory.
+## cut and paste report for c++ files in that directory (or 'c', if you
+## set the environment variable LANGUAGE to 'c').
 
 ## Note that other rules are only for Java code not C source.
 
+## If you run into java.lang.OutOfMemoryError, try setting the environment
+## variable HEAPSIZE to e.g. 512m
+
 DIRECTORY=$1
 
 if [ -z "$1" ]; then
@@ -39,10 +43,23 @@ for jarfile in `ls $LIB_DIR/*.jar`; do
 				classpath=$classpath:$jarfile
 done
 
+HEAPSIZE=${HEAPSIZE:-512m}
+LANGUAGE=${LANGUAGE:-cpp}
+MINIMUM_TOKENS=${MINIMUM_TOKENS:-100}
 
-MINIMUM_SIZE=100
-LANGUAGE=cpp
+case "$HEAPSIZE" in
+[1-9]*[mgMG]) HEAPSIZE=-Xmx$HEAPSIZE ;;
+'') ;;
+*) echo "HEAPSIZE '$HEAPSIZE' unknown (try: 512m)"
+   exit 1
+esac
+
+case "$LANGUAGE" in
+cpp|c) ;;
+*) echo "Language '$LANGUAGE' unknown (try: cpp, c)"
+   exit 1
+esac
 
 # echo "CLASSPATH: $classpath"
 
-java -cp $classpath net.sourceforge.pmd.cpd.CPD --minimum-tokens $MINIMUM_SIZE --files $DIRECTORY --language $LANGUAGE
+java $HEAPSIZE -cp $classpath net.sourceforge.pmd.cpd.CPD --minimum-tokens $MINIMUM_TOKENS --files $DIRECTORY --language $LANGUAGE