Haskell code to download and install the latest Chromium continuous build on Windows.

chromeup.hs

module Main (main) where
import System.Cmd
import Network.Socket
import System.Environment
import Network.HTTP.Conduit
import qualified Data.ByteString.Lazy.Char8 as C8

main = do
  let versionUrl = "http://commondatastorage.googleapis.com/chromium-browser-continuous/Win/LAST_CHANGE"
  version <- withSocketsDo $ simpleHttp versionUrl
  putStrLn ("Upgrading to " ++ (C8.unpack version))
  
  let installerUrl = ("http://commondatastorage.googleapis.com/chromium-browser-continuous/Win/" ++ (C8.unpack version) ++ "/mini_installer.exe")
  chromeExe <- withSocketsDo $ simpleHttp installerUrl
  
  tdir <- getEnv "TEMP"
  let installer = (tdir ++ "/mini_installer.exe")
  C8.writeFile installer chromeExe
  rawSystem installer []