From 7fa96238a6c78e6b35a8e9a0758bef0c07a96b15 Mon Sep 17 00:00:00 2001
From: Harald Albers <github@albersweb.de>
Date: Sun, 8 Nov 2015 09:04:35 -0800
Subject: [PATCH] Fix bash completion on systems where extglob is not set

Signed-off-by: Harald Albers <github@albersweb.de>
---
 contrib/completion/bash/docker | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/contrib/completion/bash/docker b/contrib/completion/bash/docker
index 9af9be2cb5..969ccccc6e 100644
--- a/contrib/completion/bash/docker
+++ b/contrib/completion/bash/docker
@@ -49,6 +49,9 @@
 # options immediately following their corresponding long form.
 # This order should be applied to lists, alternatives and code blocks.
 
+__docker_previous_extglob_setting=$(shopt -p extglob)
+shopt -s extglob
+
 __docker_q() {
 	docker ${host:+-H "$host"} ${config:+--config "$config"} 2>/dev/null "$@"
 }
@@ -1890,4 +1893,7 @@ _docker() {
 	return 0
 }
 
+eval "$__docker_previous_extglob_setting"
+unset __docker_previous_extglob_setting
+
 complete -F _docker docker