Add a new script bb_host_steps.py which handles all host side steps.

build/android/buildbot/bb_host_steps.py

Index: build/android/buildbot/bb_host_steps.py
diff --git a/build/android/buildbot/bb_host_steps.py b/build/android/buildbot/bb_host_steps.py
new file mode 100755
index 0000000000000000000000000000000000000000..a945a96b795edafb7aaa2a30b788781aa92a8120
--- /dev/null
+++ b/build/android/buildbot/bb_host_steps.py
@@ -0,0 +1,136 @@
+#!/usr/bin/env python
+# Copyright (c) 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import json
+import os
+import sys
+
+import bb_utils
+
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
+from pylib import buildbot_report
+from pylib import constants
+
+
+SLAVE_SCRIPTS_DIR = os.path.join(bb_utils.BB_BUILD_DIR, 'scripts', 'slave')
+VALID_HOST_TESTS = set(['check_webview_licenses', 'findbugs'])
+EXPERIMENTAL_TARGETS = ['android_experimental']
+
+# Short hand for RunCmd which is used extensively in this file.
+RunCmd = bb_utils.RunCmd
+
+
+def SrcPath(*path):
+  return os.path.join(constants.CHROME_DIR, *path)
+
+
+def CheckWebViewLicenses():
+  buildbot_report.PrintNamedStep('Check licenses for WebView')
+  RunCmd([SrcPath('android_webview', 'tools', 'webview_licenses.py'), 'scan'],
+         warning_code=1)
+
+
+def RunHooks():
+  buildbot_report.PrintNamedStep('runhooks')
+  RunCmd(['gclient', 'runhooks'], halt_on_failure=True)
+
+
+def Compile(target, args, experimental=False):
+  cmd = [os.path.join(SLAVE_SCRIPTS_DIR, 'compile.py'),
+         '--build-tool=ninja',
+         '--compiler=goma',
+         '--target=%s' % target,
+         '--goma-dir=%s' % os.path.join(bb_utils.BB_BUILD_DIR, 'goma')]
+  if experimental:
+    for compile_target in args:
+      buildbot_report.PrintNamedStep('Experimental Compile %s' % compile_target)
+      RunCmd(cmd + ['--build-args=%s' % compile_target], flunk_on_failure=False)
+  else:
+    buildbot_report.PrintNamedStep('compile')
+    RunCmd(cmd + ['--build-args=%s' % ' '.join(args)], halt_on_failure=True)
+
+
+def ZipBuild(factory_properties, build_properties):
+  buildbot_report.PrintNamedStep('Zip build')
+  RunCmd([os.path.join(SLAVE_SCRIPTS_DIR, 'zip_build.py'),
+          '--src-dir', constants.CHROME_DIR,
+          '--build-dir', SrcPath('out'),
+          '--exclude-files', 'lib.target,gen,android_webview,jingle_unittests',
+          '--factory-properties', json.dumps(factory_properties),
+          '--build-properties', json.dumps(build_properties)])
+
+
+def ExtractBuild(factory_properties, build_properties):
+  buildbot_report.PrintNamedStep('Download and extract build')
+  RunCmd([os.path.join(SLAVE_SCRIPTS_DIR, 'extract_build.py'),
+          '--build-dir', SrcPath('build'),
+          '--build-output-dir', SrcPath('out'),
+          '--factory-properties', json.dumps(factory_properties),
+          '--build-properties', json.dumps(build_properties)],
+         warning_code=1)
+
+
+def FindBugs(target):

[Isaac (away), 2013/06/06 23:32:02]

We should avoid passing around a string here.  Consider a namedtuple with
'Debug' and 'Release', or just a boolean is_release. Also buildtype would be a
more correct terminology than target.

[Siva Chandra, 2013/06/07 01:42:08]

Done.

+  buildbot_report.PrintNamedStep('findbugs')
+  if target == 'Release':
+    target = '--release-build'
+  RunCmd([SrcPath('build', 'android', 'findbugs_diff.py'), target])

[Isaac (away), 2013/06/06 23:32:02]

we should not pass target arg if build type is debug.

[Siva Chandra, 2013/06/07 01:42:08]

Done.

+  RunCmd([SrcPath('tools', 'android', 'findbugs_plugin', 'test',
+                  'run_findbugs_plugin_tests.py'),

[Isaac (away), 2013/06/06 23:32:02]

nit linebreak

[Siva Chandra, 2013/06/07 01:42:08]

The line is now different. Where do you suggested I break it?

[Isaac (away), 2013/06/07 02:59:11]

looks fine now.  The comment was me thinking target could be moved to line 81

+          target])
+
+
+def UpdateClang():
+  RunCmd([SrcPath('tools', 'clang', 'scripts', 'update.sh')])
+
+
+def main(argv):
+  parser = bb_utils.GetParser()
+  parser.add_option('--host-tests', help='Comma separated list of host tests.')
+  parser.add_option('--build-args', default='All',

[Isaac (away), 2013/06/06 23:32:02]

Is this option being used right now?  If not, we should remove it and plumbing
unless you think it will be used imminently.

[Siva Chandra, 2013/06/07 01:42:08]

We will require it downstream.

[Isaac (away), 2013/06/07 02:59:11]

OK.

+                    help='Comma separated list of build targets.')
+  parser.add_option('--compile', action='store_true',
+                    help='Indicate whether a compile step should be run.')
+  parser.add_option('--experimental', action='store_true',
+                    help='Indicate whether to compile experimental targets.')
+  parser.add_option('--zipbuild', action='store_true',

[Isaac (away), 2013/06/06 23:32:02]

--zip-build

[Siva Chandra, 2013/06/07 01:42:08]

Done.

+                    help='Indicate whether the build should be zipped.')
+  parser.add_option('--extract-build', action='store_true',
+                    help='Indicate whether a build should be downloaded.')
+  parser.add_option('--asan-tests-setup', action='store_true',

[Isaac (away), 2013/06/06 23:32:02]

--update-clang

[Siva Chandra, 2013/06/07 01:42:08]

Done.

+                    help='Download or build the ASan runtime library.')
+
+  options, args = parser.parse_args(argv[1:])
+  if args:
+    return sys.exit('Unused args %s' % args)
+
+  host_tests = []
+  if options.host_tests:
+    host_tests = options.host_tests.split(',')
+  unknown_tests = set(host_tests) - VALID_HOST_TESTS
+  if unknown_tests:
+    return sys.exit('Unknown host tests %s' % list(unknown_tests))
+
+  target = options.factory_properties.get('target', 'Debug')

[Isaac (away), 2013/06/06 23:32:02]

could you rename this per commend above?  Perhaps buildtype.

[Siva Chandra, 2013/06/07 01:42:08]

Done.

+
+  if options.compile:
+    if 'check_webview_licenses' in host_tests:
+      CheckWebViewLicenses()
+    RunHooks()
+    Compile(target, options.build_args.split(','))
+    if options.experimental:
+      Compile(target, EXPERIMENTAL_TARGETS, True)
+    if 'findbugs' in host_tests:
+      FindBugs(target)
+    if options.zipbuild:
+      ZipBuild(options.factory_properties, options.build_properties)
+  if options.asan_tests_setup:
+    UpdateClang()
+  if options.extract_build:
+    ExtractBuild(options.factory_properties, options.build_properties)
+
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))