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# Copyright (c) 2021, Google Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# 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 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
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (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 libwebm.
See https://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
details on the presubmit API built into depot_tools.
"""
import re
import subprocess2
USE_PYTHON3 = True
_BASH_INDENTATION = "2"
_GIT_COMMIT_SUBJECT_LENGTH = 65
_INCLUDE_BASH_FILES_ONLY = [r".*\.sh$"]
_INCLUDE_SOURCE_FILES_ONLY = [r".*\.(c|cc|[hc]pp|h)$"]
_LIBWEBM_MAX_LINE_LENGTH = 80
def _CheckCommitSubjectLength(input_api, output_api):
"""Ensures commit's subject length is no longer than 65 chars."""
name = "git-commit subject"
cmd = ["git", "log", "-1", "--pretty=%s"]
start = input_api.time.time()
proc = subprocess2.Popen(
cmd,
stderr=subprocess2.PIPE,
stdout=subprocess2.PIPE,
universal_newlines=True)
stdout, _ = proc.communicate()
duration = input_api.time.time() - start
if not re.match(r"^Revert",
stdout) and (len(stdout) - 1) > _GIT_COMMIT_SUBJECT_LENGTH:
failure_msg = (
"The commit subject: %s is too long (%d chars)\n"
"Try to keep this to 50 or less (up to 65 is permitted for "
"non-reverts).\n"
"https://www.git-scm.com/book/en/v2/Distributed-Git-Contributing-to-a-"
"Project#_commit_guidelines") % (stdout, len(stdout) - 1)
return output_api.PresubmitError("%s\n (%4.2fs) failed\n%s" %
(name, duration, failure_msg))
return output_api.PresubmitResult("%s\n (%4.2fs) success" % (name, duration))
def _GetFilesToSkip(input_api):
"""Skips libwebm-specific files."""
return list(input_api.DEFAULT_FILES_TO_SKIP) + [
r"\.pylintrc$",
]
def _CheckChangeLintsClean(input_api, output_api):
"""Makes sure that libwebm/ code is cpplint clean."""
sources = lambda x: input_api.FilterSourceFile(
x, files_to_check=_INCLUDE_SOURCE_FILES_ONLY, files_to_skip=None)
return input_api.canned_checks.CheckChangeLintsClean(input_api, output_api,
sources)
def _RunShellCheckCmd(input_api, output_api, bash_file):
"""shellcheck command wrapper."""
cmd = ["shellcheck", "-x", "-oall", "-sbash", bash_file]
name = "Check %s file." % bash_file
start = input_api.time.time()
output, rc = subprocess2.communicate(
cmd, stdout=None, stderr=subprocess2.PIPE, universal_newlines=True)
duration = input_api.time.time() - start
if rc == 0:
return output_api.PresubmitResult("%s\n%s (%4.2fs)\n" %
(name, " ".join(cmd), duration))
return output_api.PresubmitError("%s\n%s (%4.2fs) failed\n%s" %
(name, " ".join(cmd), duration, output[1]))
def _RunShfmtCheckCmd(input_api, output_api, bash_file):
"""shfmt command wrapper."""
cmd = [
"shfmt", "-i", _BASH_INDENTATION, "-bn", "-ci", "-sr", "-kp", "-d",
bash_file
]
name = "Check %s file." % bash_file
start = input_api.time.time()
output, rc = subprocess2.communicate(
cmd, stdout=None, stderr=subprocess2.PIPE, universal_newlines=True)
duration = input_api.time.time() - start
if rc == 0:
return output_api.PresubmitResult("%s\n%s (%4.2fs)\n" %
(name, " ".join(cmd), duration))
return output_api.PresubmitError("%s\n%s (%4.2fs) failed\n%s" %
(name, " ".join(cmd), duration, output[1]))
def _RunCmdOnCheckedFiles(input_api, output_api, run_cmd, files_to_check):
"""Ensure that libwebm/ files are clean."""
file_filter = lambda x: input_api.FilterSourceFile(
x, files_to_check=files_to_check, files_to_skip=None)
affected_files = input_api.change.AffectedFiles(file_filter=file_filter)
results = [
run_cmd(input_api, output_api, f.AbsoluteLocalPath())
for f in affected_files
]
return results
def _CommonChecks(input_api, output_api):
results = []
results.extend(
input_api.canned_checks.CheckChangeHasNoCrAndHasOnlyOneEol(
input_api, output_api))
results.extend(
input_api.canned_checks.CheckChangeHasNoTabs(input_api, output_api))
results.extend(
input_api.canned_checks.CheckChangeHasNoStrayWhitespace(
input_api, output_api))
results.append(_CheckCommitSubjectLength(input_api, output_api))
source_file_filter = lambda x: input_api.FilterSourceFile(
x, files_to_skip=_GetFilesToSkip(input_api))
results.extend(
input_api.canned_checks.CheckLongLines(
input_api,
output_api,
maxlen=_LIBWEBM_MAX_LINE_LENGTH,
source_file_filter=source_file_filter))
results.extend(
input_api.canned_checks.CheckPatchFormatted(
input_api,
output_api,
check_clang_format=True,
check_python=True,
result_factory=output_api.PresubmitError))
results.extend(_CheckChangeLintsClean(input_api, output_api))
# Run pylint.
results.extend(
input_api.canned_checks.RunPylint(
input_api,
output_api,
files_to_skip=_GetFilesToSkip(input_api),
pylintrc=".pylintrc",
version="2.7"))
# Binaries shellcheck and shfmt are not installed in depot_tools.
# Installation is needed
try:
subprocess2.communicate(["shellcheck", "--version"])
results.extend(
_RunCmdOnCheckedFiles(input_api, output_api, _RunShellCheckCmd,
_INCLUDE_BASH_FILES_ONLY))
print("shfmt")
subprocess2.communicate(["shfmt", "-version"])
results.extend(
_RunCmdOnCheckedFiles(input_api, output_api, _RunShfmtCheckCmd,
_INCLUDE_BASH_FILES_ONLY))
except OSError as os_error:
results.append(
output_api.PresubmitPromptWarning(
"%s\nPlease install missing binaries locally." % os_error.args[0]))
return results
def CheckChangeOnUpload(input_api, output_api):
results = []
results.extend(_CommonChecks(input_api, output_api))
return results
def CheckChangeOnCommit(input_api, output_api):
results = []
results.extend(_CommonChecks(input_api, output_api))
return results
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