Bash script to migrate from Ant to Maven

S="/$1/$4"
if [ -d "$S" ]; then
TJ="/$2/src/$3/java"
TR="/$2/src/$3/resources"
mkdir -p $TJ
mkdir -p $TR
echo copying $S/* to $TJ
# clean java and resource directories
find $TJ \( ! -regex '.*/\..*' \) -type f -exec rm {} \;
find $TR \( ! -regex '.*/\..*' \) -type f -exec rm {} \;
# syncronize files
rsync -a -u -m --include="+ *.java" --exclude="- *.*" --exclude=".*" "$S"/* "$TJ" 2>/dev/null
rsync -a -u -m --include="+ *.form" --exclude="- *.*" --exclude=".*" "$S"/* "$TJ" 2>/dev/null
rsync -a -u -m --include="+ *.properties" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.wsmode" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.xml" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.html" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.shadow" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.png" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.PNG" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.jpg" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.JPG" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.gif" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.GIF" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.sql" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
rsync -a -u -m --include="+ *.r" --exclude="- *.*" --exclude=".*" "$S"/* "$TR" 2>/dev/null
# recursively remove empty directories
find $TJ -type d -print | xargs rmdir 2>/dev/null
find $TR -type d -print | xargs rmdir 2>/dev/null
fi