xfstests.zsh: Make -g GROUP an option to the script

So we can add tab completion and set a default group when one isn't
passed in.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

completions/_xfstests.zsh

@@ -5,6 +5,7 @@ function _xfstests.zsh() {
 		{-c,--client}'[the client to test]: : _alternative
 			"hosts\:hosts\: _ssh_hosts"
 			"domains\:domains\:($(virsh list --all --name))"' \
+		{-g,--group}'[the xfstests group to run]: :($(_list_xfstests_groups))' \
 		{-k,--scratch}'[the exported scratch directory on the server]: : _files -/' \
 		{-p,--mountpoint}'[the directory to mount the server]: : _files -/' \
 		--nconnect'[number of connections]: :($(seq 1 32))' \
@@ -17,3 +18,16 @@ function _xfstests.zsh() {
 		\*{-v,--version}+'[the nfs version to test (default=all)]: :(3 4 4.0 4.1 4.2)' \
 		{-x,--export}'[the exported directory on the server]: : _files -/'
 }
+
+function _list_xfstests_groups() {
+	if [ ! -f /tmp/xfstests.groups.completion ]; then
+		find $HOME/Programs/xfstests-dev -name group.list \
+			-exec grep -P '^\d+' '{}' \; | \
+			awk '{$1=""; print $0}' | \
+			awk -F\# '{print $1}' | \
+			grep -o -E '\w+' | \
+			sort | uniq > /tmp/xfstests.groups.completion
+	fi
+
+	cat /tmp/xfstests.groups.completion
+}

xfstests.zsh

@@ -2,9 +2,11 @@
 source common.zsh
 VERSION=(3 4.0 4.1 4.2)
 PROTO=(tcp)
+GROUP=(-g quick)
 
 zparseopts -D -K \
 	c:=CLIENT -client:=CLIENT \
+	g:=GROUP -group:=GROUP \
 	k:=SCRATCH -scratch:=SCRATCH \
 	-nconnect:=NCONNECT \
 	p:=MOUNTPOINT -mountpoint:=MOUNTPOINT \
@@ -49,6 +51,7 @@ fi
 testargs=()
 for arg in $*; do
 	testargs+=($(printf '%q' "$arg"))
+	GROUP=()
 done
 
 run_xfs_tests() {
@@ -60,7 +63,7 @@ run_xfs_tests() {
 				--proto $1 \
 				--version $2 \
 				--opts $OPTIONS \
-				--user $USER $testargs | python $COLOR $1 $2
+				--user $USER $GROUP $testargs | python $COLOR $1 $2
 	scp -q ${CLIENT[-1]}:$REMOTE_RESULTS/$1/$2/result.xml $TMP_RESULTS/$1-$2.xml
 }