Migrate dartium_tools from chrome branch to dart repo

tools/dartium/build.py

+#!/usr/bin/env python
+#
+# Copyright 2010 Google Inc. All Rights Reserved.
+
+# This file is used by the buildbot.
+
+import optparse
+import os.path
+import utils
+
+ALL_TARGETS = [
+    'content_shell',
+    'chrome',
+    'blink_tests',
+    'pkg_packages',
+]
+
+def main():
+  parser = optparse.OptionParser()
+  parser.add_option('--target', dest='target',
+                    default='all',
+                    action='store', type='string',
+                    help='Target (%s)' % ', '.join(ALL_TARGETS))
+  parser.add_option('--mode', dest='mode',
+                    action='store', type='string',
+                    help='Build mode (Debug or Release)')
+  parser.add_option('--clobber', dest='clobber',
+                    action='store_true',
+                    help='Clobber the output directory')
+  parser.add_option('-j', '--jobs', dest='jobs',
+                    action='store',
+                    help='Number of jobs')
+  (options, args) = parser.parse_args()
+  mode = options.mode
+  if options.jobs:
+    jobs = options.jobs
+  else:
+    jobs = utils.guessCpus()
+  if not (mode in ['Debug', 'Release']):
+    raise Exception('Invalid build mode')
+
+  if options.target == 'all':
+    targets = ALL_TARGETS
+  else:
+    targets = [options.target]
+
+  if options.clobber:
+    utils.runCommand(['rm', '-rf', 'out'])
+
+  utils.runCommand(['ninja',
+                    '-j%s' % jobs,
+                    '-C',
+                    os.path.join('out', mode)]
+                    + targets)
+
+if __name__ == '__main__':
+  main()