init.lua

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-- Auto Config Reload
-----------------------------------------------
function reloadConfig(files)
  doReload = false
  for _,file in pairs(files) do
    if file:sub(-4) == ".lua" then
      doReload = true
    end
  end
  if doReload then
    hs.reload()
  end
end
hs.pathwatcher.new(os.getenv("HOME") .. "/.hammerspoon/", reloadConfig):start()
hs.alert.show("Config loaded")

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-- Set up
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local hyper = {"shift", "cmd", "alt", "ctrl"}

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-- vim-like window movement
-- hyper m for fullscreen
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for key, dir in pairs({ h = "left", j = "down", k = "up", l = "right", m = "max", c="center" }) do
  hs.hotkey.bind(hyper, key, function()
    local win = hs.window.focusedWindow()
    local f = win:frame()
    local max = win:screen():frame()

    f.x = (dir == "right") and (max.x + (max.w / 2)) or (dir == "center" and max.x + (max.w / 4)) or max.x
    f.y = (dir == "down") and (max.y + (max.h / 2)) or (dir == "center" and max.y + (max.h / 4)) or max.y
    f.w = (dir == "left" or dir == "right" or dir == "center") and (max.w / 2) or max.w
    f.h = (dir == "up" or dir == "down" or dir == "center") and (max.h / 2) or max.h
    win:setFrame(f)
  end)
end

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-- application hotkeys
-----------------------------------------------
for key, name in pairs({
  c = "Google Chrome",
  f = "Finder",
  m = "Messages",
  p = "Spotify",
  s = "Slack",
  t = "iTerm",
  v = "Sococo"
}) do
  hs.hotkey.bind({"cmd", "alt"}, key, function()
    local app = hs.application.get(name)

    if app and app:isFrontmost() then
      app:hide()
    else
      hs.application.launchOrFocus(name)
    end
  end)
end

hs.hotkey.bind(hyper, "space", hs.spotify.displayCurrentTrack)