From 3968a4a5ded90f42f68190ea33fe8e442e301301 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Wed, 6 Sep 2017 20:51:41 +0200
Subject: wg-quick: only bash complete existing interfaces for down

---
 src/tools/completion/wg-quick.bash-completion | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

(limited to 'src')

diff --git a/src/tools/completion/wg-quick.bash-completion b/src/tools/completion/wg-quick.bash-completion
index e0bdf9f..b931323 100644
--- a/src/tools/completion/wg-quick.bash-completion
+++ b/src/tools/completion/wg-quick.bash-completion
@@ -4,20 +4,23 @@ _wg_quick_completion() {
 	local i a
 	if [[ $COMP_CWORD -eq 1 ]]; then
 		COMPREPLY+=( $(compgen -W "up down" -- "${COMP_WORDS[1]}") )
-		return
 	elif [[ $COMP_CWORD -eq 2 ]]; then
-		local old_glob="$(shopt -p nullglob)"
-		shopt -s nullglob
-		for i in /etc/wireguard/*.conf; do
-			i="${i##*/}"; i="${i%.conf}"
-			mapfile -t a < <(compgen -W "$i" -- "${COMP_WORDS[2]}")
+		if [[ ${COMP_WORDS[1]} == up ]]; then
+			local old_glob="$(shopt -p nullglob)"
+			shopt -s nullglob
+			for i in /etc/wireguard/*.conf; do
+				i="${i##*/}"; i="${i%.conf}"
+				mapfile -t a < <(compgen -W "$i" -- "${COMP_WORDS[2]}")
+				COMPREPLY+=( "${a[@]}" )
+			done
+			eval "$old_glob"
+			mapfile -t a < <(compgen -f -X '!*.conf' -- "${COMP_WORDS[2]}")
 			COMPREPLY+=( "${a[@]}" )
-		done
-		eval "$old_glob"
-		mapfile -t a < <(compgen -f -X '!*.conf' -- "${COMP_WORDS[2]}")
-		COMPREPLY+=( "${a[@]}" )
-		mapfile -t a < <(compgen -d -- "${COMP_WORDS[2]}")
-		COMPREPLY+=( "${a[@]}" )
+			mapfile -t a < <(compgen -d -- "${COMP_WORDS[2]}")
+			COMPREPLY+=( "${a[@]}" )
+		elif [[ ${COMP_WORDS[1]} == down ]]; then
+			COMPREPLY+=( $(compgen -W "$(wg show interfaces)" -- "${COMP_WORDS[2]}") )
+		fi
 	fi
 }
 
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