Simple window tiling with Hammerspoon

init.lua

-- http://www.hammerspoon.org/go/

-- basic key shortcuts for window tiling

hs.window.animationDuration = 0

hs.hotkey.bind({"cmd", "alt", "ctrl"}, "M", function()
  local win = hs.window.focusedWindow()
  local f = win:frame()
  local screen = win:screen()
  local max = screen:frame()

  f.x = max.x - 4
  f.y = max.y
  f.w = max.w + 2
  f.h = max.h
  win:setFrame(f)
end)

hs.hotkey.bind({"cmd", "alt", "ctrl"}, "Left", function()
  local win = hs.window.focusedWindow()
  local f = win:frame()
  local screen = win:screen()
  local max = screen:frame()

  f.x = max.x - 4
  f.y = max.y
  f.w = max.w / 2 + 2
  f.h = max.h
  win:setFrame(f)
end)

hs.hotkey.bind({"cmd", "alt", "ctrl"}, "Right", function()
  local win = hs.window.focusedWindow()
  local f = win:frame()
  local screen = win:screen()
  local max = screen:frame()

  f.x = max.x + (max.w / 2) - 2
  f.y = max.y
  f.w = max.w / 2 + 2
  f.h = max.h
  win:setFrame(f)
end)

hs.hotkey.bind({"cmd", "alt", "ctrl"}, "Up", function()
  local win = hs.window.focusedWindow()
  local f = win:frame()
  local screen = win:screen()
  local max = screen:frame()

  f.x = 0
  f.y = 0
  f.w = max.w
  f.h = max.h / 2
  win:setFrame(f)
end)

hs.hotkey.bind({"cmd", "alt", "ctrl"}, "Down", function()
  local win = hs.window.focusedWindow()
  local f = win:frame()
  local screen = win:screen()
  local max = screen:frame()

  f.x = 0
  f.y = max.y + (max.h / 2) - 2
  f.w = max.w
  f.h = (max.h / 2) + 4
  win:setFrame(f)
end)


--type-paste (for sites/apps that block actual-paste into password field)

hs.hotkey.bind({"cmd", "alt"}, "V", function()
    hs.eventtap.keyStrokes(hs.pasteboard.getContents())
end)