[bash] fix doas completions

.bash/completions

@@ -0,0 +1,4 @@
+
+for i in ~/.bash/completions.d/*; do
+    . "$i"
+done

.bash/completions.d/doas

@@ -0,0 +1,19 @@
+# bash completion for doas(1)                              -*- shell-script -*-
+
+_doas() {
+	local cur prev words cword split
+	_init_completion -s || return
+
+	for ((i = 1; i <= cword; i++)); do
+		if [[ ${words[i]} != -* ]]; then
+			local PATH=$PATH:/sbin:/usr/sbin:/usr/local/sbin
+			local root_command=${words[i]}
+			_command_offset $i
+			return
+		fi
+
+		[[ ${words[i]} == -@(u|C) ]] && ((i++))
+	done
+} && complete -F _doas doas
+
+# ex: filetype=sh

.bashrc

@@ -26,10 +26,7 @@ export PROMPT_COMMAND="history -a; history -c; history -r; $PROMPT_COMMAND"
 
 ## Completions
 [ -f /etc/bash_completion ] && . /etc/bash_completion
-
-# doas/sudo command completion
-complete -cf sudo
-complete -cf doas
+. ~/.bash/completions
 
 # fzf
 if command -v fzf 2>&1 > /dev/null; then