xfstests: make exclude groups aware of multiple subdirectories

Now that there are no tests in the top level directory, the exlude
group functionality no longer works (-x group) as it cannot find
tests to build an initial list of tests. Rework the the exclude
group implementation to operate correctly on the new test locations.

Also, switch from sed to grep for exclusion because sed has problems
distnguishing the '/' in path names from regex control...

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Phil White <pwhite@sgi.com>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>

check

@@ -96,6 +96,19 @@ get_group_list()
 	echo $grpl
 }
 
+# find all tests, excluding files that are test metadata such as group files.
+# This assumes that tests are defined purely by alphanumeric filenames with no
+# ".xyz" extensions in the name.
+get_all_tests()
+{
+	touch $tmp.list
+	for d in $SRC_GROUPS $FSTYP; do
+		ls $SRC_DIR/$d/* | \
+			grep -v "\..*" | \
+			grep -v group >> $tmp.list 2>/dev/null
+	done
+}
+
 _wallclock()
 {
     date "+%H %M %S" | $AWK_PROG '{ print $1*3600 + $2*60 + $3 }'
@@ -110,7 +123,7 @@ _timestamp()
 # start the initialisation work now
 _setenvironment
 
-rm -f $tmp.list $tmp.tmp $tmp.sed $here/$iam.out
+rm -f $tmp.list $tmp.tmp $tmp.grep $here/$iam.out
 
 # Autodetect fs type based on what's on $TEST_DEV
 if [ "$HOSTOS" == "Linux" ]; then
@@ -150,27 +163,33 @@ while [ $# -gt 0 ]; do
 		;;
 
 	-x)	xgroup=$2 ; shift ;
-		[ ! -s $tmp.list ] &&  ls $SUPPORTED_TESTS >$tmp.list 2>/dev/null
+
+		# Note: behaviour is dependent on command line ordering of
+		# -g and -x parameters. If there are no preceding -g commands,
+		# this works on all tests, otherwise just the tests specified by
+		# the early -g inclusions.
+		[ ! -s $tmp.list ] && get_all_tests
+
 		group_list=$(get_group_list $xgroup)
 		if [ -z "$group_list" ]; then
 		    echo "Group \"$xgroup\" is empty or not defined?"
 		    exit 1
 		fi
 
-		rm -f $tmp.sed
+		rm -f $tmp.grep
 		numsed=0
 		for t in $group_list
 		do
 		    if [ $numsed -gt 100 ]; then
-			sed -f $tmp.sed <$tmp.list >$tmp.tmp
+			grep -v -f $tmp.grep <$tmp.list >$tmp.tmp
 			mv $tmp.tmp $tmp.list
 			numsed=0
-			rm -f $tmp.sed
+			rm -f $tmp.grep
 		    fi
-		    echo "/^$t\$/d" >>$tmp.sed
+		    echo "^$t\$" >>$tmp.grep
 		    numsed=`expr $numsed + 1`
 		done
-		sed -f $tmp.sed <$tmp.list >$tmp.tmp
+		grep -v -f $tmp.grep <$tmp.list >$tmp.tmp
 		mv $tmp.tmp $tmp.list
 		;;
 
@@ -239,7 +258,7 @@ fi
 
 # sort the list of tests into numeric order
 list=`sort -n $tmp.list`
-rm -f $tmp.list $tmp.tmp $tmp.sed
+rm -f $tmp.list $tmp.tmp $tmp.grep
 
 if $randomize
 then