[ndctl PATCH v4 09/10] contrib/ndctl: fix region-id completions for daxctl

[Vishal Verma <vishal.l.verma@intel.com>]

The completion helpers for daxctl assumed the region arguments for
specifying daxctl regions were the same as ndctl regions, i.e.
"regionX". This is not true - daxctl region arguments are a simple
numeric 'id'.

Add a new helper __daxctl_get_regions() to complete daxctl region IDs
properly.

While at it, fix a useless use of 'echo' in __daxctl_get_devs() and
quoting in __daxctl_comp_options()

Fixes: d6790a32f32c ("daxctl: Add bash-completion")
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
---
 contrib/ndctl | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/contrib/ndctl b/contrib/ndctl
index 396a344..cacee2d 100755
--- a/contrib/ndctl
+++ b/contrib/ndctl
@@ -531,8 +531,14 @@ _ndctl()
 
 __daxctl_get_devs()
 {
-	local opts="--devices $*"
-	echo "$(daxctl list $opts | grep -E "^\s*\"chardev\":" | cut -d\" -f4)"
+	local opts=("--devices" "$*")
+	daxctl list "${opts[@]}" | grep -E "^\s*\"chardev\":" | cut -d'"' -f4
+}
+
+__daxctl_get_regions()
+{
+	local opts=("--regions" "$*")
+	daxctl list "${opts[@]}" | grep -E "^\s*\"id\":" | grep -Eo "[0-9]+"
 }
 
 __daxctlcomp()
@@ -561,10 +567,10 @@ __daxctl_comp_options()
 		local cur_arg=${cur##*=}
 		case $cur_subopt in
 		--region)
-			opts=$(__ndctl_get_regions -i)
+			opts="$(__daxctl_get_regions -i)"
 			;;
 		--dev)
-			opts=$(__daxctl_get_devs -i)
+			opts="$(__daxctl_get_devs -i)"
 			;;
 		*)
 			return
-- 
2.20.1

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