Module: RunLoop::Core

Defined in:
lib/run_loop/core.rb

Constant Summary collapse

START_DELIMITER = 
"OUTPUT_JSON:\n"
END_DELIMITER = 
"\nEND_OUTPUT"
SCRIPTS_PATH = 
File.expand_path(File.join(File.dirname(__FILE__), '..', '..', 'scripts'))
SCRIPTS = 
{
    :dismiss => "run_dismiss_location.js",
    :run_loop => "run_loop.js"
}

Class Method Summary collapse

Class Method Details

.automation_template ⇒ Object 



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# File 'lib/run_loop/core.rb', line 253

def self.automation_template
  xcode_path = `xcode-select -print-path`.chomp
  automation_bundle = File.expand_path(File.join(xcode_path, "..", 'Applications', "Instruments.app", "Contents", "PlugIns", 'AutomationInstrument.bundle'))
  if not File.exist? automation_bundle
    automation_bundle= File.expand_path(File.join(xcode_path, "Platforms", "iPhoneOS.platform", "Developer", "Library", "Instruments", "PlugIns", "AutomationInstrument.bundle"))
    raise "Unable to find AutomationInstrument.bundle" if not File.exist? automation_bundle
  end
  File.join(automation_bundle, "Contents", "Resources", "Automation.tracetemplate")
end

.instruments_command(udid, results_dir_trace, bundle_dir_or_bundle_id, results_dir, script, log_file) ⇒ Object 



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# File 'lib/run_loop/core.rb', line 238

def self.instruments_command(udid, results_dir_trace, bundle_dir_or_bundle_id, results_dir, script, log_file)
  instruments_prefix = instruments_command_prefix(udid, results_dir_trace)
  cmd = [
      instruments_prefix,
      "-t", automation_template,
      "\"#{bundle_dir_or_bundle_id}\"",
      "-e", "UIARESULTSPATH", results_dir,
      "-e", "UIASCRIPT", script
  ]
  if log_file
    cmd << "&> #{log_file}"
  end
  cmd
end

.instruments_command_prefix(udid, results_dir_trace) ⇒ Object 



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# File 'lib/run_loop/core.rb', line 228

def self.instruments_command_prefix(udid,results_dir_trace)
  instruments_path = 'instruments'
  if udid
    instruments_path = "#{instruments_path} -w #{udid}"
  end
  instruments_path << " -D \"#{results_dir_trace}\""
  instruments_path
end

.log(message) ⇒ Object 



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# File 'lib/run_loop/core.rb', line 263

def self.log(message)
  puts "#{Time.now } #{message}"
  $stdout.flush
end

.log_header(message) ⇒ Object 



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# File 'lib/run_loop/core.rb', line 268

def self.log_header(message)
  puts "\n\e[#{35}m### #{message} ###\e[0m"
  $stdout.flush
end

.pids_for_run_loop(run_loop, &block) ⇒ Object 



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# File 'lib/run_loop/core.rb', line 212

def self.pids_for_run_loop(run_loop, &block)
  results_dir = run_loop[:results_dir]
  udid = run_loop[:udid]
  instruments_prefix = instruments_command_prefix(udid, results_dir)

  pids_str = `ps x -o pid,command | grep -v grep | grep "#{instruments_prefix}" | awk '{printf "%s,", $1}'`
  pids = pids_str.split(",").map { |pid| pid.to_i }
  if block_given?
    pids.each do |pid|
      block.call(pid)
    end
  else
    pids
  end
end

.read_response(run_loop, expected_index) ⇒ Object 



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# File 'lib/run_loop/core.rb', line 158

def self.read_response(run_loop, expected_index)
  log_file = run_loop[:log_file]
  initial_offset = run_loop[:initial_offset] || 0
  offset = initial_offset

  result = nil
  loop do
    unless File.exist?(log_file) && File.size?(log_file)
      sleep(0.5)
      next
    end

    size = File.size(log_file)
    output = File.read(log_file, size-offset, offset)
    index_if_found = output.index(START_DELIMITER)
    if ENV['DEBUG_READ']=='1'
      puts output.gsub("*", '')
      puts "Size #{size}"
      puts "offset #{offset}"
      puts "index_of #{START_DELIMITER}: #{index_if_found}"
    end

    if index_if_found

      offset = offset + index_if_found
      rest = output[index_if_found+START_DELIMITER.size..output.length]
      index_of_json = rest.index("}#{END_DELIMITER}")

      json = rest[0..index_of_json]

      if ENV['DEBUG_READ']=='1'
        puts "Index #{index_if_found}, Size: #{size} Offset #{offset}"

        puts ("parse #{json}")
      end

      offset = offset + json.size
      parsed_result = JSON.parse(json)
      json_index_if_present = parsed_result['index']
      if json_index_if_present && json_index_if_present == expected_index
        result = parsed_result
        break
      end
    else
      sleep(0.1)
    end
  end

  run_loop[:initial_offset] = offset

  result

end

.run_with_options(options) ⇒ Object 



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# File 'lib/run_loop/core.rb', line 33

def self.run_with_options(options)

  device = options[:device] || :iphone
  udid = options[:udid]
  timeout = options[:timeout] || 10

  log_file = options[:log_path]



  results_dir = options[:results_dir] || Dir.mktmpdir("run_loop")
  results_dir_trace = File.join(results_dir, "trace")
  FileUtils.mkdir_p(results_dir_trace)

  dependencies = options[:dependencies] || []
  dependencies.each do |dep|
    FileUtils.cp(dep, results_dir)
  end

  script = File.join(results_dir, "_run_loop.js")


  code = File.read(options[:script])
  code = code.gsub(/\$PATH/, results_dir)
  code = code.gsub(/\$MODE/, "FLUSH") unless options[:no_flush]

  repl_path = File.join(results_dir, "repl-cmd.txt")
  File.open(repl_path, "w") { |file| file.puts "0:UIALogger.logMessage('Listening for run loop commands');" }

  File.open(script, "w") { |file| file.puts code }


  bundle_dir_or_bundle_id = options[:app] || ENV['BUNDLE_ID']|| ENV['APP_BUNDLE_PATH']

  unless bundle_dir_or_bundle_id
    raise 'key :app or environment variable APP_BUNDLE_PATH or BUNDLE_ID must be specified as path to app bundle (simulator) or bundle id (device)'
  end

  if File.exist?(bundle_dir_or_bundle_id)
    #Assume simulator
    udid = nil
    plistbuddy="/usr/libexec/PlistBuddy"
    plistfile="#{bundle_dir_or_bundle_id}/Info.plist"
    if device == :iphone
      uidevicefamily=1
    else
      uidevicefamily=2
    end
    system("#{plistbuddy} -c 'Delete :UIDeviceFamily' '#{plistfile}'")
    system("#{plistbuddy} -c 'Add :UIDeviceFamily array' '#{plistfile}'")
    system("#{plistbuddy} -c 'Add :UIDeviceFamily:0 integer #{uidevicefamily}' '#{plistfile}'")
  else
    unless udid
      begin
        Timeout::timeout(3, TimeoutError) do
          udid = `#{File.join(scripts_path, 'udidetect')}`.chomp
        end
      rescue TimeoutError => e

      end
      unless udid
        raise "Unable to find connected device."
      end
    end

  end

  log_file ||= File.join(results_dir, 'run_loop.out')

  cmd = instruments_command(udid, results_dir_trace, bundle_dir_or_bundle_id, results_dir, script, log_file)

  pid = fork do
    log_header("Starting App: #{bundle_dir_or_bundle_id}")
    cmd_str = cmd.join(" ")
    if ENV['DEBUG']
      log(cmd_str)
    end
    exec(cmd_str)
  end

  Process.detach(pid)

  File.open(File.join(results_dir, "run_loop.pid"), "w") do |f|
    f.write pid
  end

  run_loop = {:pid => pid, :udid => udid, :app => bundle_dir_or_bundle_id, :repl_path => repl_path, :log_file => log_file, :results_dir => results_dir}

  #read_response(run_loop,0)
  begin
    Timeout::timeout(timeout, TimeoutError) do
      read_response(run_loop, 0)
    end
  rescue TimeoutError => e
    raise TimeoutError, "Time out waiting for UIAutomation run-loop to Start. \n #{File.read(log_file)}"
  end

  run_loop
end

.script_for_key(key) ⇒ Object 



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# File 'lib/run_loop/core.rb', line 26

def self.script_for_key(key)
  if SCRIPTS[key].nil?
    return nil
  end
  File.join(scripts_path, SCRIPTS[key])
end

.scripts_path ⇒ Object 



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# File 'lib/run_loop/core.rb', line 22

def self.scripts_path
  SCRIPTS_PATH
end

.write_request(run_loop, cmd) ⇒ Object 



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# File 'lib/run_loop/core.rb', line 133

def self.write_request(run_loop, cmd)
  repl_path = run_loop[:repl_path]

  cur = File.read(repl_path)

  colon = cur.index(':')

  if colon.nil?
    raise "Illegal contents of #{repl_path}: #{cur}"
  end
  index = cur[0, colon].to_i + 1


  tmp_cmd = File.join(File.dirname(repl_path), '__repl-cmd.txt')
  File.open(tmp_cmd, "w") do |f|
    f.write("#{index}:#{cmd}")
    if ENV['DEBUG']
      puts "Wrote: #{index}:#{cmd}"
    end
  end

  FileUtils.mv(tmp_cmd, repl_path)
  index
end