plugins/todo: lint

plugin/base: use `_bash-it-component-item-is-enabled()`

clean_files.txt

@@ -109,6 +109,7 @@ plugins/available/pyenv.plugin.bash
 plugins/available/rbenv.plugin.bash
 plugins/available/ruby.plugin.bash
 plugins/available/textmate.plugin.bash
+plugins/available/todo.plugin.bash
 plugins/available/xterm.plugin.bash
 plugins/available/zoxide.plugin.bash
 

plugins/available/base.plugin.bash

@@ -120,8 +120,7 @@ function usage() {
 	esac
 }
 
-# shellcheck disable=SC2144 # the glob matches only one file
-if [[ ! -e "${BASH_IT?}/plugins/enabled/todo.plugin.bash" && ! -e "${BASH_IT?}/plugins/enabled"/*"${BASH_IT_LOAD_PRIORITY_SEPARATOR-}todo.plugin.bash" ]]; then
+if ! _bash-it-component-item-is-enabled plugin todo; then
 	# if user has installed todo plugin, skip this...
 	function t() {
 		about 'one thing todo'

plugins/available/todo.plugin.bash

@@ -1,12 +1,8 @@
-#!/bin/bash
-cite about-plugin
+# shellcheck shell=bash
 about-plugin 'Todo.txt integration'
 
 # you may override any of the exported variables below in your .bash_profile
-
-if [ -z "$TODOTXT_DEFAULT_ACTION" ]; then
-  # typing 't' by itself will list current todos
-  export TODOTXT_DEFAULT_ACTION=ls
-fi
+: "${TODOTXT_DEFAULT_ACTION:=ls}"
+export TODOTXT_DEFAULT_ACTION
 
 alias t='todo.sh'