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96daa41aab
Rather than suffering in silence, output a warning if something about the checkpatch output cannot be understood. Signed-off-by: Simon Glass <sjg@chromium.org>
201 lines
7 KiB
Python
201 lines
7 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2011 The Chromium OS Authors.
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#
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import collections
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import os
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import re
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import sys
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from patman import command
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from patman import gitutil
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from patman import terminal
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from patman import tools
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def FindCheckPatch():
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top_level = gitutil.GetTopLevel()
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try_list = [
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os.getcwd(),
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os.path.join(os.getcwd(), '..', '..'),
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os.path.join(top_level, 'tools'),
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os.path.join(top_level, 'scripts'),
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'%s/bin' % os.getenv('HOME'),
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]
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# Look in current dir
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for path in try_list:
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fname = os.path.join(path, 'checkpatch.pl')
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if os.path.isfile(fname):
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return fname
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# Look upwwards for a Chrome OS tree
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while not os.path.ismount(path):
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fname = os.path.join(path, 'src', 'third_party', 'kernel', 'files',
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'scripts', 'checkpatch.pl')
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if os.path.isfile(fname):
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return fname
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path = os.path.dirname(path)
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sys.exit('Cannot find checkpatch.pl - please put it in your ' +
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'~/bin directory or use --no-check')
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def CheckPatch(fname, verbose=False):
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"""Run checkpatch.pl on a file.
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Returns:
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namedtuple containing:
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ok: False=failure, True=ok
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problems: List of problems, each a dict:
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'type'; error or warning
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'msg': text message
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'file' : filename
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'line': line number
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errors: Number of errors
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warnings: Number of warnings
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checks: Number of checks
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lines: Number of lines
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stdout: Full output of checkpatch
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"""
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fields = ['ok', 'problems', 'errors', 'warnings', 'checks', 'lines',
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'stdout']
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result = collections.namedtuple('CheckPatchResult', fields)
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result.ok = False
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result.errors, result.warnings, result.checks = 0, 0, 0
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result.lines = 0
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result.problems = []
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chk = FindCheckPatch()
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item = {}
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result.stdout = command.Output(chk, '--no-tree', fname,
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raise_on_error=False)
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#pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE)
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#stdout, stderr = pipe.communicate()
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# total: 0 errors, 0 warnings, 159 lines checked
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# or:
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# total: 0 errors, 2 warnings, 7 checks, 473 lines checked
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emacs_prefix = '(?:[0-9]{4}.*\.patch:[0-9]+: )?'
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emacs_stats = '(?:[0-9]{4}.*\.patch )?'
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re_stats = re.compile(emacs_stats +
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'total: (\\d+) errors, (\d+) warnings, (\d+)')
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re_stats_full = re.compile(emacs_stats +
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'total: (\\d+) errors, (\d+) warnings, (\d+)'
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' checks, (\d+)')
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re_ok = re.compile('.*has no obvious style problems')
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re_bad = re.compile('.*has style problems, please review')
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re_error = re.compile('ERROR: (.*)')
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re_warning = re.compile(emacs_prefix + 'WARNING:(?:[A-Z_]+:)? (.*)')
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re_check = re.compile('CHECK: (.*)')
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re_file = re.compile('#\d+: FILE: ([^:]*):(\d+):')
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re_note = re.compile('NOTE: (.*)')
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indent = ' ' * 6
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for line in result.stdout.splitlines():
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if verbose:
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print(line)
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# A blank line indicates the end of a message
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if not line:
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if item:
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result.problems.append(item)
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item = {}
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continue
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if re_note.match(line):
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continue
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# Skip lines which quote code
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if line.startswith(indent):
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continue
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# Skip code quotes and #<n>
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if line.startswith('+') or line.startswith('#'):
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continue
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match = re_stats_full.match(line)
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if not match:
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match = re_stats.match(line)
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if match:
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result.errors = int(match.group(1))
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result.warnings = int(match.group(2))
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if len(match.groups()) == 4:
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result.checks = int(match.group(3))
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result.lines = int(match.group(4))
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else:
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result.lines = int(match.group(3))
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continue
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elif re_ok.match(line):
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result.ok = True
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continue
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elif re_bad.match(line):
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result.ok = False
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continue
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err_match = re_error.match(line)
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warn_match = re_warning.match(line)
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file_match = re_file.match(line)
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check_match = re_check.match(line)
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subject_match = line.startswith('Subject:')
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if err_match:
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item['msg'] = err_match.group(1)
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item['type'] = 'error'
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elif warn_match:
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item['msg'] = warn_match.group(1)
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item['type'] = 'warning'
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elif check_match:
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item['msg'] = check_match.group(1)
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item['type'] = 'check'
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elif file_match:
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item['file'] = file_match.group(1)
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item['line'] = int(file_match.group(2))
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elif subject_match:
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item['file'] = '<patch subject>'
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item['line'] = None
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else:
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print('bad line "%s", %d' % (line, len(line)))
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return result
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def GetWarningMsg(col, msg_type, fname, line, msg):
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'''Create a message for a given file/line
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Args:
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msg_type: Message type ('error' or 'warning')
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fname: Filename which reports the problem
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line: Line number where it was noticed
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msg: Message to report
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'''
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if msg_type == 'warning':
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msg_type = col.Color(col.YELLOW, msg_type)
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elif msg_type == 'error':
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msg_type = col.Color(col.RED, msg_type)
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elif msg_type == 'check':
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msg_type = col.Color(col.MAGENTA, msg_type)
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line_str = '' if line is None else '%d' % line
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return '%s:%s: %s: %s\n' % (fname, line_str, msg_type, msg)
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def CheckPatches(verbose, args):
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'''Run the checkpatch.pl script on each patch'''
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error_count, warning_count, check_count = 0, 0, 0
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col = terminal.Color()
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for fname in args:
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result = CheckPatch(fname, verbose)
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if not result.ok:
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error_count += result.errors
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warning_count += result.warnings
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check_count += result.checks
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print('%d errors, %d warnings, %d checks for %s:' % (result.errors,
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result.warnings, result.checks, col.Color(col.BLUE, fname)))
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if (len(result.problems) != result.errors + result.warnings +
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result.checks):
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print("Internal error: some problems lost")
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for item in result.problems:
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sys.stderr.write(
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GetWarningMsg(col, item.get('type', '<unknown>'),
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item.get('file', '<unknown>'),
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item.get('line', 0), item.get('msg', 'message')))
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print
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#print(stdout)
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if error_count or warning_count or check_count:
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str = 'checkpatch.pl found %d error(s), %d warning(s), %d checks(s)'
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color = col.GREEN
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if warning_count:
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color = col.YELLOW
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if error_count:
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color = col.RED
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print(col.Color(color, str % (error_count, warning_count, check_count)))
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return False
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return True
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