Add DART_BUILD_NOTIFICATION_DELAY to control notifications

dart/tools/build.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 #
 
 import optparse
 import os
 import re
 import shutil
 import subprocess
 import sys
+import time
 import utils
 
 HOST_OS = utils.GuessOS()
 HOST_CPUS = utils.GuessCpus()
 SCRIPT_DIR = os.path.dirname(sys.argv[0])
 DART_ROOT = os.path.realpath(os.path.join(SCRIPT_DIR, '..'))
 THIRD_PARTY_ROOT = os.path.join(DART_ROOT, 'third_party')
 
 arm_cc_error = """
 Couldn't find the arm cross compiler.
@@ skipping 271 matching lines @@
         has_interesting_info = True
       if has_interesting_info:
         print '\n'.join(chunk)
         chunk = []
       else:
         chunk.append(line)
   if not is_empty_chunk(chunk):
     print '\n'.join(chunk)
 
 
-def NotifyBuildDone(build_config, success):
+def NotifyBuildDone(build_config, success, start):
   if not success:
     print "BUILD FAILED"
 
   sys.stdout.flush()
 
+  # Display a notification if build time exceeded DART_BUILD_NOTIFICATION_DELAY.
+  notification_delay = float(
+    os.getenv('DART_BUILD_NOTIFICATION_DELAY', default=sys.float_info.max))
+  if (time.time() - start) < notification_delay:
+    return
+
   if success:
     message = 'Build succeeded.'
   else:
     message = 'Build failed.'
   title = build_config
 
   command = None
   if HOST_OS == 'macos':
     # Use AppleScript to display a UI non-modal notification.
     script = 'display notification  "%s" with title "%s" sound name "Glass"' % (
@@ skipping 27 matching lines @@
       targets = ['all']
   else:
     targets = args
 
   filter_xcodebuild_output = False
   # Build all targets for each requested configuration.
   for target in targets:
     for target_os in options.os:
       for mode in options.mode:
         for arch in options.arch:
+          start_time = time.time()
           os.environ['DART_BUILD_MODE'] = mode
           build_config = utils.GetBuildConf(mode, arch, target_os)
           if HOST_OS == 'macos':
             filter_xcodebuild_output = True
             project_file = 'dart.xcodeproj'
             if os.path.exists('dart-%s.gyp' % CurrentDirectoryBaseName()):
               project_file = 'dart-%s.xcodeproj' % CurrentDirectoryBaseName()
             args = ['xcodebuild',
                     '-project',
                     project_file,
@@ skipping 60 matching lines @@
             process = subprocess.Popen(args,
                                        stdin=None,
                                        bufsize=1, # Line buffered.
                                        stdout=subprocess.PIPE,
                                        stderr=subprocess.STDOUT)
             FilterEmptyXcodebuildSections(process)
           else:
             process = subprocess.Popen(args, stdin=None)
           process.wait()
           if process.returncode != 0:
-            NotifyBuildDone(build_config, success=False)
+            NotifyBuildDone(build_config, success=False, start=start_time)
             return 1
           else:
-            NotifyBuildDone(build_config, success=True)
+            NotifyBuildDone(build_config, success=True, start=start_time)
 
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(Main())