# Keep a reference so that we can kill it on process.exit
leinProcess = null

# Workaround to start the Clojure frontend server.
# This is needed when running E2E tests.
gulp.task('lein-run-static', (cb) ->

  leinProcess = spawn('lein', ['run-static'])

  # Here we compare each output until the line telling us that the frontend server is
  # up running, then we know it's ready.
  leinProcess.stdout.on('data', (data) ->

    line = data.toString().trim()

    # Do not print some duplicate lines
    if !line.match(/Requiring external|Running for version|Using gulpfile/)
      # Do not use gutil.log otherwise we see double dates
      console.log(line)

    if line.match(/Started SelectChannelConnector/)
      gutil.log('Frontend server started.')
      cb()
  )

  if config.debug
    leinProcess.stderr.pipe(process.stderr)

  # Make sure null is returned otherwise gulp will interpret leinProcess as
  # a gulp task stream
  return
)