411 строки
14 KiB
Python
Executable File
411 строки
14 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
|
|
# Copyright The Mbed TLS Contributors
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
#
|
|
# 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
|
|
#
|
|
# http://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.
|
|
|
|
"""
|
|
This script checks the current state of the source code for minor issues,
|
|
including incorrect file permissions, presence of tabs, non-Unix line endings,
|
|
trailing whitespace, and presence of UTF-8 BOM.
|
|
Note: requires python 3, must be run from Mbed TLS root.
|
|
"""
|
|
|
|
import os
|
|
import argparse
|
|
import logging
|
|
import codecs
|
|
import re
|
|
import subprocess
|
|
import sys
|
|
try:
|
|
from typing import FrozenSet, Optional, Pattern # pylint: disable=unused-import
|
|
except ImportError:
|
|
pass
|
|
|
|
|
|
class FileIssueTracker:
|
|
"""Base class for file-wide issue tracking.
|
|
|
|
To implement a checker that processes a file as a whole, inherit from
|
|
this class and implement `check_file_for_issue` and define ``heading``.
|
|
|
|
``suffix_exemptions``: files whose name ends with a string in this set
|
|
will not be checked.
|
|
|
|
``path_exemptions``: files whose path (relative to the root of the source
|
|
tree) matches this regular expression will not be checked. This can be
|
|
``None`` to match no path. Paths are normalized and converted to ``/``
|
|
separators before matching.
|
|
|
|
``heading``: human-readable description of the issue
|
|
"""
|
|
|
|
suffix_exemptions = frozenset() #type: FrozenSet[str]
|
|
path_exemptions = None #type: Optional[Pattern[str]]
|
|
# heading must be defined in derived classes.
|
|
# pylint: disable=no-member
|
|
|
|
def __init__(self):
|
|
self.files_with_issues = {}
|
|
|
|
@staticmethod
|
|
def normalize_path(filepath):
|
|
"""Normalize ``filepath`` with / as the directory separator."""
|
|
filepath = os.path.normpath(filepath)
|
|
# On Windows, we may have backslashes to separate directories.
|
|
# We need slashes to match exemption lists.
|
|
seps = os.path.sep
|
|
if os.path.altsep is not None:
|
|
seps += os.path.altsep
|
|
return '/'.join(filepath.split(seps))
|
|
|
|
def should_check_file(self, filepath):
|
|
"""Whether the given file name should be checked.
|
|
|
|
Files whose name ends with a string listed in ``self.suffix_exemptions``
|
|
or whose path matches ``self.path_exemptions`` will not be checked.
|
|
"""
|
|
for files_exemption in self.suffix_exemptions:
|
|
if filepath.endswith(files_exemption):
|
|
return False
|
|
if self.path_exemptions and \
|
|
re.match(self.path_exemptions, self.normalize_path(filepath)):
|
|
return False
|
|
return True
|
|
|
|
def check_file_for_issue(self, filepath):
|
|
"""Check the specified file for the issue that this class is for.
|
|
|
|
Subclasses must implement this method.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
def record_issue(self, filepath, line_number):
|
|
"""Record that an issue was found at the specified location."""
|
|
if filepath not in self.files_with_issues.keys():
|
|
self.files_with_issues[filepath] = []
|
|
self.files_with_issues[filepath].append(line_number)
|
|
|
|
def output_file_issues(self, logger):
|
|
"""Log all the locations where the issue was found."""
|
|
if self.files_with_issues.values():
|
|
logger.info(self.heading)
|
|
for filename, lines in sorted(self.files_with_issues.items()):
|
|
if lines:
|
|
logger.info("{}: {}".format(
|
|
filename, ", ".join(str(x) for x in lines)
|
|
))
|
|
else:
|
|
logger.info(filename)
|
|
logger.info("")
|
|
|
|
BINARY_FILE_PATH_RE_LIST = [
|
|
r'docs/.*\.pdf\Z',
|
|
r'programs/fuzz/corpuses/[^.]+\Z',
|
|
r'tests/data_files/[^.]+\Z',
|
|
r'tests/data_files/.*\.(crt|csr|db|der|key|pubkey)\Z',
|
|
r'tests/data_files/.*\.req\.[^/]+\Z',
|
|
r'tests/data_files/.*malformed[^/]+\Z',
|
|
r'tests/data_files/format_pkcs12\.fmt\Z',
|
|
]
|
|
BINARY_FILE_PATH_RE = re.compile('|'.join(BINARY_FILE_PATH_RE_LIST))
|
|
|
|
class LineIssueTracker(FileIssueTracker):
|
|
"""Base class for line-by-line issue tracking.
|
|
|
|
To implement a checker that processes files line by line, inherit from
|
|
this class and implement `line_with_issue`.
|
|
"""
|
|
|
|
# Exclude binary files.
|
|
path_exemptions = BINARY_FILE_PATH_RE
|
|
|
|
def issue_with_line(self, line, filepath):
|
|
"""Check the specified line for the issue that this class is for.
|
|
|
|
Subclasses must implement this method.
|
|
"""
|
|
raise NotImplementedError
|
|
|
|
def check_file_line(self, filepath, line, line_number):
|
|
if self.issue_with_line(line, filepath):
|
|
self.record_issue(filepath, line_number)
|
|
|
|
def check_file_for_issue(self, filepath):
|
|
"""Check the lines of the specified file.
|
|
|
|
Subclasses must implement the ``issue_with_line`` method.
|
|
"""
|
|
with open(filepath, "rb") as f:
|
|
for i, line in enumerate(iter(f.readline, b"")):
|
|
self.check_file_line(filepath, line, i + 1)
|
|
|
|
|
|
def is_windows_file(filepath):
|
|
_root, ext = os.path.splitext(filepath)
|
|
return ext in ('.bat', '.dsp', '.dsw', '.sln', '.vcxproj')
|
|
|
|
|
|
class PermissionIssueTracker(FileIssueTracker):
|
|
"""Track files with bad permissions.
|
|
|
|
Files that are not executable scripts must not be executable."""
|
|
|
|
heading = "Incorrect permissions:"
|
|
|
|
# .py files can be either full scripts or modules, so they may or may
|
|
# not be executable.
|
|
suffix_exemptions = frozenset({".py"})
|
|
|
|
def check_file_for_issue(self, filepath):
|
|
is_executable = os.access(filepath, os.X_OK)
|
|
should_be_executable = filepath.endswith((".sh", ".pl"))
|
|
if is_executable != should_be_executable:
|
|
self.files_with_issues[filepath] = None
|
|
|
|
|
|
class ShebangIssueTracker(FileIssueTracker):
|
|
"""Track files with a bad, missing or extraneous shebang line.
|
|
|
|
Executable scripts must start with a valid shebang (#!) line.
|
|
"""
|
|
|
|
heading = "Invalid shebang line:"
|
|
|
|
# Allow either /bin/sh, /bin/bash, or /usr/bin/env.
|
|
# Allow at most one argument (this is a Linux limitation).
|
|
# For sh and bash, the argument if present must be options.
|
|
# For env, the argument must be the base name of the interpeter.
|
|
_shebang_re = re.compile(rb'^#! ?(?:/bin/(bash|sh)(?: -[^\n ]*)?'
|
|
rb'|/usr/bin/env ([^\n /]+))$')
|
|
_extensions = {
|
|
b'bash': 'sh',
|
|
b'perl': 'pl',
|
|
b'python3': 'py',
|
|
b'sh': 'sh',
|
|
}
|
|
|
|
def is_valid_shebang(self, first_line, filepath):
|
|
m = re.match(self._shebang_re, first_line)
|
|
if not m:
|
|
return False
|
|
interpreter = m.group(1) or m.group(2)
|
|
if interpreter not in self._extensions:
|
|
return False
|
|
if not filepath.endswith('.' + self._extensions[interpreter]):
|
|
return False
|
|
return True
|
|
|
|
def check_file_for_issue(self, filepath):
|
|
is_executable = os.access(filepath, os.X_OK)
|
|
with open(filepath, "rb") as f:
|
|
first_line = f.readline()
|
|
if first_line.startswith(b'#!'):
|
|
if not is_executable:
|
|
# Shebang on a non-executable file
|
|
self.files_with_issues[filepath] = None
|
|
elif not self.is_valid_shebang(first_line, filepath):
|
|
self.files_with_issues[filepath] = [1]
|
|
elif is_executable:
|
|
# Executable without a shebang
|
|
self.files_with_issues[filepath] = None
|
|
|
|
|
|
class EndOfFileNewlineIssueTracker(FileIssueTracker):
|
|
"""Track files that end with an incomplete line
|
|
(no newline character at the end of the last line)."""
|
|
|
|
heading = "Missing newline at end of file:"
|
|
|
|
path_exemptions = BINARY_FILE_PATH_RE
|
|
|
|
def check_file_for_issue(self, filepath):
|
|
with open(filepath, "rb") as f:
|
|
try:
|
|
f.seek(-1, 2)
|
|
except OSError:
|
|
# This script only works on regular files. If we can't seek
|
|
# 1 before the end, it means that this position is before
|
|
# the beginning of the file, i.e. that the file is empty.
|
|
return
|
|
if f.read(1) != b"\n":
|
|
self.files_with_issues[filepath] = None
|
|
|
|
|
|
class Utf8BomIssueTracker(FileIssueTracker):
|
|
"""Track files that start with a UTF-8 BOM.
|
|
Files should be ASCII or UTF-8. Valid UTF-8 does not start with a BOM."""
|
|
|
|
heading = "UTF-8 BOM present:"
|
|
|
|
suffix_exemptions = frozenset([".vcxproj", ".sln"])
|
|
path_exemptions = BINARY_FILE_PATH_RE
|
|
|
|
def check_file_for_issue(self, filepath):
|
|
with open(filepath, "rb") as f:
|
|
if f.read().startswith(codecs.BOM_UTF8):
|
|
self.files_with_issues[filepath] = None
|
|
|
|
|
|
class UnixLineEndingIssueTracker(LineIssueTracker):
|
|
"""Track files with non-Unix line endings (i.e. files with CR)."""
|
|
|
|
heading = "Non-Unix line endings:"
|
|
|
|
def should_check_file(self, filepath):
|
|
if not super().should_check_file(filepath):
|
|
return False
|
|
return not is_windows_file(filepath)
|
|
|
|
def issue_with_line(self, line, _filepath):
|
|
return b"\r" in line
|
|
|
|
|
|
class WindowsLineEndingIssueTracker(LineIssueTracker):
|
|
"""Track files with non-Windows line endings (i.e. CR or LF not in CRLF)."""
|
|
|
|
heading = "Non-Windows line endings:"
|
|
|
|
def should_check_file(self, filepath):
|
|
if not super().should_check_file(filepath):
|
|
return False
|
|
return is_windows_file(filepath)
|
|
|
|
def issue_with_line(self, line, _filepath):
|
|
return not line.endswith(b"\r\n") or b"\r" in line[:-2]
|
|
|
|
|
|
class TrailingWhitespaceIssueTracker(LineIssueTracker):
|
|
"""Track lines with trailing whitespace."""
|
|
|
|
heading = "Trailing whitespace:"
|
|
suffix_exemptions = frozenset([".dsp", ".md"])
|
|
|
|
def issue_with_line(self, line, _filepath):
|
|
return line.rstrip(b"\r\n") != line.rstrip()
|
|
|
|
|
|
class TabIssueTracker(LineIssueTracker):
|
|
"""Track lines with tabs."""
|
|
|
|
heading = "Tabs present:"
|
|
suffix_exemptions = frozenset([
|
|
".pem", # some openssl dumps have tabs
|
|
".sln",
|
|
"/Makefile",
|
|
"/Makefile.inc",
|
|
"/generate_visualc_files.pl",
|
|
])
|
|
|
|
def issue_with_line(self, line, _filepath):
|
|
return b"\t" in line
|
|
|
|
|
|
class MergeArtifactIssueTracker(LineIssueTracker):
|
|
"""Track lines with merge artifacts.
|
|
These are leftovers from a ``git merge`` that wasn't fully edited."""
|
|
|
|
heading = "Merge artifact:"
|
|
|
|
def issue_with_line(self, line, _filepath):
|
|
# Detect leftover git conflict markers.
|
|
if line.startswith(b'<<<<<<< ') or line.startswith(b'>>>>>>> '):
|
|
return True
|
|
if line.startswith(b'||||||| '): # from merge.conflictStyle=diff3
|
|
return True
|
|
if line.rstrip(b'\r\n') == b'=======' and \
|
|
not _filepath.endswith('.md'):
|
|
return True
|
|
return False
|
|
|
|
|
|
class IntegrityChecker:
|
|
"""Sanity-check files under the current directory."""
|
|
|
|
def __init__(self, log_file):
|
|
"""Instantiate the sanity checker.
|
|
Check files under the current directory.
|
|
Write a report of issues to log_file."""
|
|
self.check_repo_path()
|
|
self.logger = None
|
|
self.setup_logger(log_file)
|
|
self.issues_to_check = [
|
|
PermissionIssueTracker(),
|
|
ShebangIssueTracker(),
|
|
EndOfFileNewlineIssueTracker(),
|
|
Utf8BomIssueTracker(),
|
|
UnixLineEndingIssueTracker(),
|
|
WindowsLineEndingIssueTracker(),
|
|
TrailingWhitespaceIssueTracker(),
|
|
TabIssueTracker(),
|
|
MergeArtifactIssueTracker(),
|
|
]
|
|
|
|
@staticmethod
|
|
def check_repo_path():
|
|
if not all(os.path.isdir(d) for d in ["include", "library", "tests"]):
|
|
raise Exception("Must be run from Mbed TLS root")
|
|
|
|
def setup_logger(self, log_file, level=logging.INFO):
|
|
self.logger = logging.getLogger()
|
|
self.logger.setLevel(level)
|
|
if log_file:
|
|
handler = logging.FileHandler(log_file)
|
|
self.logger.addHandler(handler)
|
|
else:
|
|
console = logging.StreamHandler()
|
|
self.logger.addHandler(console)
|
|
|
|
@staticmethod
|
|
def collect_files():
|
|
bytes_output = subprocess.check_output(['git', 'ls-files', '-z'])
|
|
bytes_filepaths = bytes_output.split(b'\0')[:-1]
|
|
ascii_filepaths = map(lambda fp: fp.decode('ascii'), bytes_filepaths)
|
|
# Prepend './' to files in the top-level directory so that
|
|
# something like `'/Makefile' in fp` matches in the top-level
|
|
# directory as well as in subdirectories.
|
|
return [fp if os.path.dirname(fp) else os.path.join(os.curdir, fp)
|
|
for fp in ascii_filepaths]
|
|
|
|
def check_files(self):
|
|
for issue_to_check in self.issues_to_check:
|
|
for filepath in self.collect_files():
|
|
if issue_to_check.should_check_file(filepath):
|
|
issue_to_check.check_file_for_issue(filepath)
|
|
|
|
def output_issues(self):
|
|
integrity_return_code = 0
|
|
for issue_to_check in self.issues_to_check:
|
|
if issue_to_check.files_with_issues:
|
|
integrity_return_code = 1
|
|
issue_to_check.output_file_issues(self.logger)
|
|
return integrity_return_code
|
|
|
|
|
|
def run_main():
|
|
parser = argparse.ArgumentParser(description=__doc__)
|
|
parser.add_argument(
|
|
"-l", "--log_file", type=str, help="path to optional output log",
|
|
)
|
|
check_args = parser.parse_args()
|
|
integrity_check = IntegrityChecker(check_args.log_file)
|
|
integrity_check.check_files()
|
|
return_code = integrity_check.output_issues()
|
|
sys.exit(return_code)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
run_main()
|