Macのダークモード/ライトモードをCLIで切り替えるスクリプト

概要

最近、朝方はライトモード、昼過ぎたらダークモードという感じで頻繁に切り替えているんですが、

$ dark-mode  # ダークモードに切り替える
$ light-mode # ライトモードに切り替える

こんなコマンドが欲しいなと思ったのでググって作ってみました

手順

1. 二つのファイルに以下のAppleScriptそれぞれをコピペ

• ファイル名: dark-mode

# !/usr/bin/osascript

on setDarkMode(shouldBeDark)

	set paneID to "com.apple.preference.general"

	tell application "System Events"
		if dark mode of appearance preferences is shouldBeDark then return
	end tell

	set paneWasOpen to false

	(*
		If SysPrefs is already running and showing the "General" pane,
		then toggling dark mode causes the UI of the pane to become
		out-of-sync with actual system appearance. To account for this,
		we'll quit SysPrefs if it's open to General prefs, and then
		re-open it after we've made the change
	*)
	if application "System Preferences" is running then
		tell application "System Preferences"
			if show all is false and id of current pane is paneID then
				set paneWasOpen to true
				quit
			end if
		end tell
	end if

	tell application "System Events"
		set dark mode of appearance preferences to shouldBeDark
	end tell

	if paneWasOpen then
		tell application "System Preferences"
			launch
			delay 3
			activate
			reveal (the first pane whose id is paneID)
		end tell
	end if

end setDarkMode

setDarkMode(true)

• ファイル名: light-mode

# !/usr/bin/osascript

on setDarkMode(shouldBeDark)

	set paneID to "com.apple.preference.general"

	tell application "System Events"
		if dark mode of appearance preferences is shouldBeDark then return
	end tell

	set paneWasOpen to false

	(*
		If SysPrefs is already running and showing the "General" pane,
		then toggling dark mode causes the UI of the pane to become
		out-of-sync with actual system appearance. To account for this,
		we'll quit SysPrefs if it's open to General prefs, and then
		re-open it after we've made the change
	*)
	if application "System Preferences" is running then
		tell application "System Preferences"
			if show all is false and id of current pane is paneID then
				set paneWasOpen to true
				quit
			end if
		end tell
	end if

	tell application "System Events"
		set dark mode of appearance preferences to shouldBeDark
	end tell

	if paneWasOpen then
		tell application "System Preferences"
			launch
			delay 3
			activate
			reveal (the first pane whose id is paneID)
		end tell
	end if

end setDarkMode

setDarkMode(false)

2. 実行権限を付与して、PATHを通す

これでいけると思います。

スクリプトが手抜きですが、気にしない

参考

• macOS 10.14 MojaveのLightとDark Modeをワンクリックで切り替えることができるApple Script。 | AAPL Ch.

• Toggle Dark Mode

  • 上記の記事にあったAppleScript、ダイアログを表示しているが、本記事ではダイアログの部分は消しました

• AppleScript shebang

  • AppleScriptのshebang(pythonとかでよくみる#!のやつ、正しく指定するととファイル名に拡張子が無くても実行できるようになります)