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#
# Copyright 2021 Google LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""Top-level presubmit script for libwebp2.
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$"]
_INCLUDE_MAN_FILES_ONLY = [r"man/.+\.1$"]
_LIBWEBP2_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.\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):
return list(input_api.DEFAULT_FILES_TO_SKIP) + [
r"\.pylintrc$",
]
def _RunManCmd(input_api, output_api, man_file):
cmd = ["man", "--warnings", "-EUTF-8", "-l", "-Tutf8", "-Z", man_file]
name = "Check %s file." % man_file
start = input_api.time.time()
output, _ = subprocess2.communicate(
cmd, stdout=None, stderr=subprocess2.PIPE, universal_newlines=True)
duration = input_api.time.time() - start
if output[1]:
return output_api.PresubmitError("%s\n%s (%4.2fs) failed\n%s" %
(name, " ".join(cmd), duration, output[1]))
return output_api.PresubmitResult("%s\n%s (%4.2fs)\n" %
(name, " ".join(cmd), duration))
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 libwebp2/ 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=_LIBWEBP2_MAX_LINE_LENGTH,
source_file_filter=source_file_filter))
results.extend(
input_api.canned_checks.CheckPatchFormatted(
input_api,
output_api,
check_clang_format=False,
check_python=True,
result_factory=output_api.PresubmitError))
results.extend(
_RunCmdOnCheckedFiles(input_api, output_api, _RunManCmd,
_INCLUDE_MAN_FILES_ONLY))
# Run pylint.
results.extend(
input_api.canned_checks.RunPylint(
input_api, output_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