# Copyright 2012 the V8 project authors. All rights reserved.
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# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
#       copyright notice, this list of conditions and the following
#       disclaimer in the documentation and/or other materials provided
#       with the distribution.
#     * Neither the name of Google Inc. nor the names of its
#       contributors may be used to endorse or promote products derived
#       from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

"""Top-level presubmit script for V8.

See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
for more details about the presubmit API built into gcl.
"""

def _V8PresubmitChecks(input_api, output_api):
  """Runs the V8 presubmit checks."""
  import sys
  sys.path.append(input_api.os_path.join(
        input_api.PresubmitLocalPath(), 'tools'))
  from presubmit import CppLintProcessor
  from presubmit import SourceProcessor

  results = []
  if not CppLintProcessor().Run(input_api.PresubmitLocalPath()):
    results.append(output_api.PresubmitError("C++ lint check failed"))
  if not SourceProcessor().Run(input_api.PresubmitLocalPath()):
    results.append(output_api.PresubmitError(
        "Copyright header, trailing whitespaces and two empty lines " \
        "between declarations check failed"))
  return results


def _CommonChecks(input_api, output_api):
  """Checks common to both upload and commit."""
  results = []
  results.extend(input_api.canned_checks.CheckOwners(
      input_api, output_api, source_file_filter=None))
  results.extend(_V8PresubmitChecks(input_api, output_api))
  return results


def _SkipTreeCheck(input_api, output_api):
  """Check the env var whether we want to skip tree check.
     Only skip if src/version.cc has been updated."""
  print "skip tree check?", input_api.environ.get('PRESUBMIT_TREE_CHECK')
  src_version = 'src/version.cc'
  def FilterFile(file):
    print "Changed file:", file.LocalPath()
    return file.LocalPath() == src_version
  if not input_api.AffectedSourceFiles(FilterFile):
    return False
  if input_api.environ.get('PRESUBMIT_TREE_CHECK') == 'skip':
    print "Skip tree check requested via environment variable."
  return input_api.environ.get('PRESUBMIT_TREE_CHECK') == 'skip'


def _CheckChangeLogFlag(input_api, output_api):
  """Checks usage of LOG= flag in the commit message."""
  results = []
  if input_api.change.BUG and not 'LOG' in input_api.change.tags:
    results.append(output_api.PresubmitError(
        'An issue reference (BUG=) requires a change log flag (LOG=). '
        'Use LOG=Y for including this commit message in the change log. '
        'Use LOG=N or leave blank otherwise.'))
  return results


def CheckChangeOnUpload(input_api, output_api):
  results = []
  results.extend(_CommonChecks(input_api, output_api))
  results.extend(_CheckChangeLogFlag(input_api, output_api))
  return results


def CheckChangeOnCommit(input_api, output_api):
  results = []
  results.extend(_CommonChecks(input_api, output_api))
  results.extend(_CheckChangeLogFlag(input_api, output_api))
  results.extend(input_api.canned_checks.CheckChangeHasDescription(
      input_api, output_api))
  if not _SkipTreeCheck(input_api, output_api):
    print "Checking if tree is open."
    results.extend(input_api.canned_checks.CheckTreeIsOpen(
        input_api, output_api,
        json_url='http://v8-status.appspot.com/current?format=json'))
  return results

@@ -2866,82 +2866,8 @@
 %22%22%22%0A
-  print %22skip tree check?%22, input_api.environ.get('PRESUBMIT_TREE_CHECK')%0A
   sr
@@ -2897,20 +2897,16 @@
 n.cc'%0A  
-def 
 FilterFi
@@ -2911,70 +2911,23 @@
 File
-(file):%0A    print %22Changed file:%22, file.LocalPath()%0A    return
+ = lambda file:
  fil
@@ -2998,163 +2998,78 @@
 les(
-FilterFile):%0A    return False%0A  if input_api.environ.get('PRESUBMIT_TREE_CHECK') == 'skip':%0A    print %22Skip tree check requested via environment variable.%22
+%0A      lambda file: file.LocalPath() == src_version):%0A    return False
 %0A  r
@@ -4104,46 +4104,8 @@
 i):%0A
-    print %22Checking if tree is open.%22%0A
     

Revert "Add debug output to presubmit script for investigating tree check behavior." and "Add more temporary debugging output to PRESUBMIT.py".