File: PRESUBMIT.py

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# Copyright (C) 2014 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 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
# "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
# OWNER 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.

"""DevTools JSDoc validator presubmit script

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

import os
import re
import sys


def _CompileDevtoolsFrontend(input_api, output_api):
    if not input_api.platform.startswith('linux'):
        return []
    local_paths = [f.LocalPath() for f in input_api.AffectedFiles()]
    if (any("devtools/front_end" in path for path in local_paths) or
        any("InjectedScriptSource.js" in path for path in local_paths) or
        any("InjectedScriptCanvasModuleSource.js" in path for path in local_paths)):
        lint_path = input_api.os_path.join(input_api.PresubmitLocalPath(),
            "scripts", "compile_frontend.py")
        out, _ = input_api.subprocess.Popen(
            [input_api.python_executable, lint_path],
            stdout=input_api.subprocess.PIPE,
            stderr=input_api.subprocess.STDOUT).communicate()
        if "WARNING" in out or "ERROR" in out:
            return [output_api.PresubmitError(out)]
    return []


def _CheckConvertSVGToPNGHashes(input_api, output_api):
    if not input_api.platform.startswith('linux'):
        return []

    original_sys_path = sys.path
    try:
        sys.path = sys.path + [input_api.os_path.join(input_api.PresubmitLocalPath(), 'scripts')]
        import devtools_file_hashes
    finally:
        sys.path = original_sys_path

    absolute_local_paths = [af.AbsoluteLocalPath() for af in input_api.AffectedFiles(include_deletes=False)]
    image_source_file_paths = [path for path in absolute_local_paths if "devtools/front_end/Images/src" in path and path.endswith(".svg")]
    image_sources_path = input_api.os_path.join(input_api.PresubmitLocalPath(), "front_end", "Images", "src")
    hashes_file_name = "svg2png.hashes"
    hashes_file_path = image_sources_path + "/" + hashes_file_name
    invalid_hash_file_paths = devtools_file_hashes.files_with_invalid_hashes(hashes_file_path, image_source_file_paths)
    if len(invalid_hash_file_paths) == 0:
        return []
    invalid_hash_file_names = [re.sub(".*/", "", file_path) for file_path in invalid_hash_file_paths]
    file_paths_str = ", ".join(invalid_hash_file_names)
    error_message = "The following SVG files should be converted to PNG using convert_svg_images_png.py script before uploading: \n  - %s" % file_paths_str
    return [output_api.PresubmitError(error_message)]


def _CheckOptimizePNGHashes(input_api, output_api):
    if not input_api.platform.startswith('linux'):
        return []

    original_sys_path = sys.path
    try:
        sys.path = sys.path + [input_api.os_path.join(input_api.PresubmitLocalPath(), 'scripts')]
        import devtools_file_hashes
    finally:
        sys.path = original_sys_path

    absolute_local_paths = [af.AbsoluteLocalPath() for af in input_api.AffectedFiles(include_deletes=False)]
    image_source_file_paths = [path for path in absolute_local_paths if "devtools/front_end/Images/src" in path and path.endswith(".svg")]
    image_sources_path = input_api.os_path.join(input_api.PresubmitLocalPath(), "front_end", "Images", "src")
    hashes_file_name = "optimize_png.hashes"
    hashes_file_path = image_sources_path + "/" + hashes_file_name
    invalid_hash_file_paths = devtools_file_hashes.files_with_invalid_hashes(hashes_file_path, image_source_file_paths)
    if len(invalid_hash_file_paths) == 0:
        return []
    invalid_hash_file_names = [re.sub(".*/", "", file_path) for file_path in invalid_hash_file_paths]
    file_paths_str = ", ".join(invalid_hash_file_names)
    error_message = "The following PNG files should be optimized using optimize_png_images.py script before uploading: \n  - %s" % file_paths_str
    return [output_api.PresubmitError(error_message)]


def CheckChangeOnUpload(input_api, output_api):
    results = []
    results.extend(_CompileDevtoolsFrontend(input_api, output_api))
    results.extend(_CheckConvertSVGToPNGHashes(input_api, output_api))
    results.extend(_CheckOptimizePNGHashes(input_api, output_api))
    return results


def CheckChangeOnCommit(input_api, output_api):
    return []