Add a script that runs cov-build, cov-analyze, and

cov-commit-defects on a Chromium tree.

R=patrick
BUG=N/A
TEST=N/A
Review URL: http://codereview.chromium.org/99264

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15831 0039d316-1c4b-4281-b951-d872f2087c98

tools/coverity/coverity.py

@@ -0,0 +1,136 @@
+#!/usr/bin/python
+# Copyright (c) 2009 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.
+
+"""
+Runs Coverity Prevent on a build of Chromium.
+
+This script should be run in a Visual Studio Command Prompt, so that the
+INCLUDE, LIB, and PATH environment variables are set properly for Visual
+Studio.
+
+Usage examples:
+  coverity.py
+  coverity.py --dry-run
+  coverity.py --target=debug
+  %comspec% /c ""C:\Program Files\Microsoft Visual Studio 8\VC\vcvarsall.bat"
+      x86 && C:\Python24\python.exe C:\coverity.py"
+
+For a full list of options, pass the '--help' switch.
+
+"""
+
+import optparse
+import os
+import subprocess
+import sys
+import time
+
+# TODO(wtc): Change these constants to command-line flags, particularly the
+# ones that are paths.  Set default values for the flags.
+
+CHROMIUM_SOURCE_DIR = 'E:\\chromium.latest'
+
+# Relative to CHROMIUM_SOURCE_DIR.
+CHROMIUM_SOLUTION_FILE = 'src\\chrome\\chrome.sln'
+
+# Relative to CHROMIUM_SOURCE_DIR.
+CHROMIUM_SOLUTION_DIR = 'src\\chrome'
+
+COVERITY_BIN_DIR = 'C:\\coverity\\prevent-mingw-4.4.0\\bin'
+
+COVERITY_INTERMEDIATE_DIR = 'C:\\coverity\\cvbuild\\cr_int'
+
+COVERITY_DATABASE_DIR = 'C:\\coverity\\cvbuild\\db'
+
+COVERITY_ANALYZE_OPTIONS = ('--all --enable-single-virtual '
+                            '--enable-constraint-fpp '
+                            '--enable-callgraph-metrics '
+                            '--checker-option PASS_BY_VALUE:size_threshold:16')
+
+COVERITY_PRODUCT = 'Chromium'
+
+COVERITY_USER = 'admin'
+
+# Relative to CHROMIUM_SOURCE_DIR.  Contains the pid of this script.
+LOCK_FILE = 'coverity.lock'
+
+def _RunCommand(cmd, dry_run, shell=False):
+  """Runs the command if dry_run is false, otherwise just prints the command."""
+  print cmd
+  # TODO(wtc): Check the return value of subprocess.call, which is the return
+  # value of the command.
+  if not dry_run:
+    subprocess.call(cmd, shell=shell)
+
+def main(options, args):
+  """Runs all the selected tests for the given build type and target."""
+  # Create the lock file to prevent another instance of this script from
+  # running.
+  lock_filename = '%s\\%s' % (CHROMIUM_SOURCE_DIR, LOCK_FILE)
+  try:
+    lock_file = os.open(lock_filename,
+                        os.O_CREAT | os.O_EXCL | os.O_TRUNC | os.O_RDWR)
+  except OSError, err:
+    print 'Failed to open lock file:\n  ' + str(err)
+    return 1
+
+  # Write the pid of this script (the python.exe process) to the lock file.
+  os.write(lock_file, str(os.getpid()))
+
+  options.target = options.target.title()
+
+  start_time = time.time()
+
+  print 'Change directory to ' + CHROMIUM_SOURCE_DIR
+  os.chdir(CHROMIUM_SOURCE_DIR)
+
+  cmd = 'gclient sync'
+  _RunCommand(cmd, options.dry_run, shell=True)
+  print 'Elapsed time: %ds' % (time.time() - start_time)
+
+  # Do a clean build.  Remove the build output directory first.
+  # TODO(wtc): Consider using Python's rmtree function in the shutil module,
+  # or the RemoveDirectory function in
+  # trunk/tools/buildbot/scripts/common/chromium_utils.py.
+  cmd = 'rmdir /s /q %s\\%s\\%s' % (CHROMIUM_SOURCE_DIR,
+                                    CHROMIUM_SOLUTION_DIR, options.target)
+  _RunCommand(cmd, options.dry_run, shell=True)
+  print 'Elapsed time: %ds' % (time.time() - start_time)
+
+  cmd = '%s\\cov-build.exe --dir %s devenv.com %s\\%s /build %s' % (
+      COVERITY_BIN_DIR, COVERITY_INTERMEDIATE_DIR, CHROMIUM_SOURCE_DIR,
+      CHROMIUM_SOLUTION_FILE, options.target)
+  _RunCommand(cmd, options.dry_run)
+  print 'Elapsed time: %ds' % (time.time() - start_time)
+
+  cmd = '%s\\cov-analyze.exe --dir %s %s' % (COVERITY_BIN_DIR,
+                                             COVERITY_INTERMEDIATE_DIR,
+                                             COVERITY_ANALYZE_OPTIONS)
+  _RunCommand(cmd, options.dry_run)
+  print 'Elapsed time: %ds' % (time.time() - start_time)
+
+  cmd = ('%s\\cov-commit-defects.exe --dir %s --datadir %s --product %s '
+         '--user %s') % (COVERITY_BIN_DIR, COVERITY_INTERMEDIATE_DIR,
+                         COVERITY_DATABASE_DIR, COVERITY_PRODUCT,
+                         COVERITY_USER)
+  _RunCommand(cmd, options.dry_run)
+
+  print 'Total time: %ds' % (time.time() - start_time)
+
+  os.close(lock_file)
+  os.remove(lock_filename)
+
+  return 0
+
+if '__main__' == __name__:
+  option_parser = optparse.OptionParser()
+  option_parser.add_option('', '--dry-run', action='store_true', default=False,
+                           help='print but don\'t run the commands')
+  option_parser.add_option('', '--target', default='Release',
+                           help='build target (Debug or Release)')
+  options, args = option_parser.parse_args()
+
+  result = main(options, args)
+  sys.exit(result)