How to open a directory in Hammerspoon?

Question

I would like to open a directory on Hammerspoon with a keyboard shortcut. In order to open any apps via shortcut, you use the following:

hs.hotkey.bind({"ctrl"}, "n", function()
    hs.application.launchOrFocus("Safari")
    end
)

However, this doesn't work on the filesystem. For example, if you want to open ~/Dropbox, what method should you do to open the app?

Answer 1

I'm not sure if there is an API specifically suitable for this task, but I found that one solution is bind keys to execute a shell command on Hammerspoon (via hs.execute()).

local function directoryLaunchKeyRemap(mods, key, dir)
    local mods = mods or {}
    hs.hotkey.bind(mods, key, function()
        local shell_command = "open " .. dir
        hs.execute(shell_command)
    end)
end

directoryLaunchKeyRemap({"ctrl"}, "1", "/Applications") 

This lets you open /Applications directory via ⌃+1.