Create pgjindent for java.

src/tools/pgindent/README

@@ -30,3 +30,9 @@ We get the list of typedef's included in pgindent by running:
 Make sure to do the pgsql/bin directory, and the src/interfaces/odbc
 directory.  Merge the output of these and remove duplicates.
 
+---------------------------------------------------------------------------
+
+For java, we use astyle, http://astyle.sourceforge.net/, with the
+following options:
+
+	find . -name '*.java' -type f -print | xargs -n100 pgjindent

src/tools/pgindent/pgindent

@@ -24,7 +24,7 @@ fi
 
 for FILE
 do
-	cat $FILE |
+	cat "$FILE" |
 # convert // comments to /* */
 	sed 's;^\([ 	]*\)//\(.*\)$;\1/* \2 */;g' |
 # mark some comments for special treatment later
@@ -1319,7 +1319,7 @@ int	pgindent_func_no_var_fix;\
 # add space after comments that start on tab stops
 	sed 's,;\(/\*.*\*/\)$,;	\1,' |
 # work around #else indenting next line if #ifdef defines variables at top
-# work around case misindenting function has no variables defined
+# work around misindenting of function with no variables defined
 	awk '
 	{
 		if ($0 ~ "^[ 	]*int[ 	]*pgindent_func_no_var_fix;")
@@ -1329,6 +1329,7 @@ int	pgindent_func_no_var_fix;\
 		}
 		else 	print $0;
 	}' |
+# remove tabs and retab with four spaces
 	detab -t8 -qc |
 	entab -t4 -qc |
 # move trailing * in function return type
@@ -1459,7 +1460,7 @@ int	pgindent_func_no_var_fix;\
 		}
 		else	print $0;
 	}' |
-	cat >/tmp/$$ && cat /tmp/$$ >$FILE
+	cat >/tmp/$$ && cat /tmp/$$ >"$FILE"
 done
 
 # The 'for' loop makes these backup files useless so delete them

src/tools/pgindent/pgjindent

+#!/bin/sh
+
+trap "rm -f /tmp/$$ /tmp/$$a" 0 1 2 3 15
+entab </dev/null >/dev/null
+if [ "$?" -ne 0 ]
+then	echo "Go to the src/tools/entab directory and do a 'make' and 'make install'." >&2
+	echo "This will put the 'entab' command in your path." >&2
+	echo "Then run $0 again."
+	exit 1
+fi
+astyle --version </dev/null >/dev/null 2>&1
+if [ "$?" -eq 0 ]
+then	echo "You do not appear to have 'astyle' installed on your system." >&2
+	exit 1
+fi
+
+for FILE
+do
+	astyle --style=java -b -p -j < "$FILE" >/tmp/$$ 2>/tmp/$$a
+	if [ "$?" -ne 0 -o -s /tmp/$$a ]
+	then	echo "$FILE"
+		cat /tmp/$$a
+	fi
+	cat /tmp/$$ |
+	entab -t4 -qc |
+	cat >/tmp/$$a && cat /tmp/$$a >"$FILE"
+done