.hammerspoon/init.lua

hs.window.animationDuration = 0

function reloadConfig(files)
    hs.reload()
end
hs.pathwatcher.new(os.getenv("HOME") .. "/.hammerspoon/", reloadConfig):start()

local bindKey  = hs.hotkey.bind
local cmd      = hs.fnutils.partial(bindKey, {"cmd"})
local cmdShift = hs.fnutils.partial(bindKey, {"cmd", "shift"})
local cmdCtrl  = hs.fnutils.partial(bindKey, {"cmd", "ctrl"})

cmdShift('r', reloadConfig)

function focusedWindow() return hs.window.focusedWindow() or hs.window.desktop() end
function focusTo(direction) hs.window['focusWindow' .. direction](focusedWindow()) end

cmd('k',  function () focusTo('North') end)
cmd('up', function () focusTo('North') end)

cmd('j',    function () focusTo('South') end)
cmd('down', function () focusTo('South') end)

cmd('h',    function () focusTo('West') end)
cmd('left', function () focusTo('West') end)

cmd('l',     function () focusTo('East') end)
cmd('right', function () focusTo('East') end)

cmdShift('up', function () focusedWindow():maximize() end)

cmdShift('down', function () focusedWindow():minimize() end)

cmdShift('left',  function () focusedWindow():moveToUnit(hs.layout.left50) end)
cmdShift('right', function () focusedWindow():moveToUnit(hs.layout.right50) end)

cmdCtrl('left',  function () focusedWindow():moveOneScreenWest() end)
cmdCtrl('right', function () focusedWindow():moveOneScreenEast() end)

cmd('return', function ()
  hs.applescript.applescript([[
    tell application "iTerm"
      set newterm to (create window with default profile)
      tell newterm to activate
    end tell
  ]])
end)

-- cache window frames before moving?
-- save cache?
-- focus by direction is a little strict