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#!/usr/bin/env python
# pylint: disable=protected-access, unused-variable, locally-disabled, redefined-variable-type
"""Lint helper to generate lint summary of source.
Copyright by Contributors
"""
import codecs
import sys
import re
import os
import cpplint
from cpplint import _cpplint_state
from pylint import epylint
CXX_SUFFIX = set(['cc', 'c', 'cpp', 'h', 'cu', 'hpp'])
PYTHON_SUFFIX = set(['py'])
class LintHelper(object):
"""Class to help runing the lint and records summary"""
@staticmethod
def _print_summary_map(strm, result_map, ftype):
"""Print summary of certain result map."""
if len(result_map) == 0:
return 0
npass = len([x for k, x in result_map.iteritems() if len(x) == 0])
strm.write('=====%d/%d %s files passed check=====\n' % (npass, len(result_map), ftype))
for fname, emap in result_map.iteritems():
if len(emap) == 0:
continue
strm.write('%s: %d Errors of %d Categories map=%s\n' % (
fname, sum(emap.values()), len(emap), str(emap)))
return len(result_map) - npass
def __init__(self):
self.project_name = None
self.cpp_header_map = {}
self.cpp_src_map = {}
self.python_map = {}
pylint_disable = ['superfluous-parens',
'too-many-instance-attributes',
'too-few-public-methods']
# setup pylint
self.pylint_opts = ['--extension-pkg-whitelist=numpy',
'--disable=' + ','.join(pylint_disable)]
self.pylint_cats = set(['error', 'warning', 'convention', 'refactor'])
# setup cpp lint
cpplint_args = ['.', '--extensions=' + (','.join(CXX_SUFFIX))]
_ = cpplint.ParseArguments(cpplint_args)
cpplint._SetFilters(','.join(['-build/c++11',
'-build/namespaces',
'-build/include',
'-build/header_guard',
'+build/include_what_you_use',
'+build/include_order']))
cpplint._SetCountingStyle('toplevel')
cpplint._line_length = 100
def process_cpp(self, path, suffix):
"""Process a cpp file."""
_cpplint_state.ResetErrorCounts()
cpplint.ProcessFile(str(path), _cpplint_state.verbose_level)
_cpplint_state.PrintErrorCounts()
errors = _cpplint_state.errors_by_category.copy()
if suffix == 'h':
self.cpp_header_map[str(path)] = errors
else:
self.cpp_src_map[str(path)] = errors
def process_python(self, path):
"""Process a python file."""
(pylint_stdout, pylint_stderr) = epylint.py_run(
' '.join([str(path)] + self.pylint_opts), return_std=True)
emap = {}
print pylint_stderr.read()
for line in pylint_stdout:
sys.stderr.write(line)
key = line.split(':')[-1].split('(')[0].strip()
if key not in self.pylint_cats:
continue
if key not in emap:
emap[key] = 1
else:
emap[key] += 1
sys.stderr.write('\n')
self.python_map[str(path)] = emap
def print_summary(self, strm):
"""Print summary of lint."""
nerr = 0
nerr += LintHelper._print_summary_map(strm, self.cpp_header_map, 'cpp-header')
nerr += LintHelper._print_summary_map(strm, self.cpp_src_map, 'cpp-soruce')
nerr += LintHelper._print_summary_map(strm, self.python_map, 'python')
if nerr == 0:
strm.write('All passed!\n')
else:
strm.write('%d files failed lint\n' % nerr)
return nerr
# singleton helper for lint check
_HELPER = LintHelper()
def get_header_guard_dmlc(filename):
"""Get Header Guard Convention for DMLC Projects.
For headers in include, directly use the path
For headers in src, use project name plus path
"""
fileinfo = cpplint.FileInfo(filename)
file_path_from_root = fileinfo.RepositoryName()
inc_list = ['include', 'api', 'wrapper']
if file_path_from_root.find('src/') != -1 and _HELPER.project_name is not None:
idx = file_path_from_root.find('src/')
file_path_from_root = _HELPER.project_name + file_path_from_root[idx + 3:]
else:
for spath in inc_list:
prefix = spath + os.sep
if file_path_from_root.startswith(prefix):
file_path_from_root = re.sub('^' + prefix, '', file_path_from_root)
break
return re.sub(r'[-./\s]', '_', file_path_from_root).upper() + '_'
cpplint.GetHeaderGuardCPPVariable = get_header_guard_dmlc
def process(fname, allow_type):
"""Process a file."""
fname = str(fname)
# HACK: ignore op.h which is automatically generated
if fname.endswith('op.h'):
return
arr = fname.rsplit('.', 1)
if fname.find('#') != -1 or arr[-1] not in allow_type:
return
if arr[-1] in CXX_SUFFIX:
_HELPER.process_cpp(fname, arr[-1])
if arr[-1] in PYTHON_SUFFIX:
_HELPER.process_python(fname)
def main():
"""Main entry function."""
if len(sys.argv) < 3:
print('Usage: <project-name> <filetype> <list-of-path to traverse>')
print('\tfiletype can be python/cpp/all')
exit(-1)
_HELPER.project_name = sys.argv[1]
file_type = sys.argv[2]
allow_type = []
if file_type == 'python' or file_type == 'all':
allow_type += [x for x in PYTHON_SUFFIX]
if file_type == 'cpp' or file_type == 'all':
allow_type += [x for x in CXX_SUFFIX]
allow_type = set(allow_type)
if os.name != 'nt':
sys.stderr = codecs.StreamReaderWriter(sys.stderr,
codecs.getreader('utf8'),
codecs.getwriter('utf8'),
'replace')
for path in sys.argv[3:]:
if os.path.isfile(path):
process(path, allow_type)
else:
for root, dirs, files in os.walk(path):
for name in files:
process(os.path.join(root, name), allow_type)
nerr = _HELPER.print_summary(sys.stderr)
sys.exit(nerr > 0)
if __name__ == '__main__':
main()
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