From: Marcos Paulo de Souza <mpdesouza@suse.com>
Date: Fri, 7 Feb 2020 13:19:50 +0000 (-0300)
Subject: common/btrfs: Improve _require_btrfs_command
X-Git-Tag: v2022.05.01~864
X-Git-Url: http://git.apps.os.sepia.ceph.com/?p=xfstests-dev.git;a=commitdiff_plain;h=2f9b4039253d3a6f91cb2a22639a243b5a27e110

common/btrfs: Improve _require_btrfs_command

Now _require_btrfs_command can also check for subfuntion options, like
"subvolume delete --subvolid".

Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
---

diff --git a/common/btrfs b/common/btrfs
index 85b33e4c..7971c046 100644
--- a/common/btrfs
+++ b/common/btrfs
@@ -12,12 +12,14 @@ _btrfs_get_subvolid()
 
 # _require_btrfs_command <command> [<subcommand>|<option>]
 # We check for btrfs and (optionally) features of the btrfs command
-# It can both subfunction like "inspect-internal dump-tree" and
-# options like "check --qgroup-report"
+# This function support both subfunction like "inspect-internal dump-tree" and
+# options like "check --qgroup-report", and also subfunction options like
+# "subvolume delete --subvolid"
 _require_btrfs_command()
 {
 	local cmd=$1
 	local param=$2
+	local param_arg=$3
 	local safe_param
 
 	_require_command "$BTRFS_UTIL_PROG" btrfs
@@ -39,6 +41,13 @@ _require_btrfs_command()
 
 	$BTRFS_UTIL_PROG $cmd $param --help &> /dev/null
 	[ $? -eq 0 ] || _notrun "$BTRFS_UTIL_PROG too old (must support $cmd $param)"
+
+	test -z "$param_arg" && return
+
+	# replace leading "-"s for grep
+	safe_param=$(echo $param_arg | sed 's/^-*//')
+	$BTRFS_UTIL_PROG $cmd $param --help | grep -wq $safe_param || \
+		_notrun "$BTRFS_UTIL_PROG too old (must support $cmd $param $param_arg)"
 }
 
 # Require extra check on btrfs qgroup numbers