hammerspoon init file

init.lua

-- https://www.hammerspoon.org/Spoons/SpoonInstall.html
hs.loadSpoon("SpoonInstall")
-- spoon.SpoonInstall:installSpoonFromZipURL("https://github.com/scottwhudson/Lunette/blob/master/Spoons/Lunette.spoon.zip?raw=true")
-- hs.loadSpoon("Lunette")
-- spoon.Lunette:bindHotkeys()

spoon.SpoonInstall:andUse("ReloadConfiguration")
spoon.ReloadConfiguration:start()

local function changeVolume(diff)
  return function()
    local current = hs.audiodevice.defaultOutputDevice():volume()
    local new = math.min(100, math.max(0, math.floor(current + diff)))
    if new > 0 then
      hs.audiodevice.defaultOutputDevice():setMuted(false)
    end
    if new % 5 ~=  0 then
      new = math.min(100, (new // 5 + 1) * 5)
    end
    hs.alert.closeAll(0.0)
    hs.alert.show("Volume " .. new .. "%", {}, 0.5)
    hs.audiodevice.defaultOutputDevice():setVolume(new)
  end
end

local function changeBrightness(diff)
  return function()
    local current = hs.screen.mainScreen():getBrightness() * 100
    local new = current + diff
    if new < 5 then new = 5 end
    if new > 80 then new = 80 end
    hs.alert.closeAll(0.0)
    hs.alert.show("Brightness " .. math.ceil(new) .. "%", {}, 0.5)
    hs.screen.mainScreen():setBrightness(new / 100)
  end
end

local function startApp(name)
  return function()
    hs.application.launchOrFocus(name)
  end
end

local function toggleFocusedWin(spacex, spacey)
  return function()
    local win    = hs.window.focusedWindow()
    local f      = win:frame()
    local screen = win:screen()
    local max    = screen:frame()

    if f.w ~= max.w then
      win:maximize(0)
    else
      f.x = max.x + max.w * spacex
      f.y = max.y + max.h * spacey
      f.w = max.w * (1 - spacex * 2)
      f.h = max.h * (1 - spacey * 2)
      win:setFrame(f)
    end
  end
end

local function showDateTime()
  return function()
    hs.alert.closeAll(0.0)
    hs.alert.show(os.date("%x") .. "\n" .. os.date("%X"), {textSize=64})
  end
end

local function goWeb(url)
  return function()
    hs.urlevent.openURL(url)
  end
end

hs.hotkey.bind({'ctrl', 'option', 'cmd'}, 'j', changeVolume(-5))
hs.hotkey.bind({'ctrl', 'option', 'cmd'}, 'k', changeVolume(5))
hs.hotkey.bind({'ctrl', 'option', 'cmd'}, 'h', changeBrightness(-5))
hs.hotkey.bind({'ctrl', 'option', 'cmd'}, 'l', changeBrightness(5))
hs.hotkey.bind({'cmd', 'shift'}, "c",  toggleFocusedWin(0.1, 0))
hs.hotkey.bind({'cmd', 'shift'}, "v",  toggleFocusedWin(0.2, 0.1))
hs.hotkey.bind({'cmd', 'shift'}, "space", showDateTime())
hs.hotkey.bind({"cmd", "shift"}, "J", startApp("Google Chrome"))
hs.hotkey.bind({"cmd", "shift"}, "K", startApp("Alacritty"))
hs.hotkey.bind({"cmd", "shift"}, "M", startApp("Messages"))
hs.hotkey.bind({"cmd", "shift"}, "W", startApp("Wechat"))
hs.hotkey.bind({"cmd", "shift"}, "G", startApp("Mail"))
hs.hotkey.bind({"cmd", "shift"}, "Y", goWeb("https://www.youtube.com"))
hs.hotkey.bind({"cmd", "shift"}, "A", goWeb("https://www.amazon.com"))


hs.hotkey.bind({"ctrl", "shift"}, "escape", startApp("Activity Monitor"))
hs.alert.show("Config Reloaded")

--GistID: 97cdc931eca56d465705a48fe2891e74