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@@ -1,13 +1,12 @@
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-#!/usr/bin/env python2
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+#!/usr/bin/env python
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#
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-# ===- run-clang-tidy.py - Parallel clang-tidy runner ---------*- python -*--===#
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+#===- run-clang-tidy.py - Parallel clang-tidy runner ---------*- python -*--===#
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#
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-# The LLVM Compiler Infrastructure
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+# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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+# See https://llvm.org/LICENSE.txt for license information.
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+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#
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-# This file is distributed under the University of Illinois Open Source
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-# License. See LICENSE.TXT for details.
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-#
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-# ===------------------------------------------------------------------------===#
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+#===------------------------------------------------------------------------===#
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# FIXME: Integrate with clang-tidy-diff.py
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"""
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@@ -35,11 +34,12 @@ http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
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"""
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from __future__ import print_function
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+
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import argparse
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+import glob
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import json
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import multiprocessing
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import os
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-import Queue
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import re
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import shutil
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import subprocess
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@@ -48,224 +48,274 @@ import tempfile
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import threading
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import traceback
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+try:
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+ import yaml
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+except ImportError:
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+ yaml = None
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-class TidyQueue(Queue.Queue):
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- def __init__(self, max_task):
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- Queue.Queue.__init__(self, max_task)
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- self.has_error = False
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+is_py2 = sys.version[0] == '2'
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+if is_py2:
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+ import Queue as queue
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+else:
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+ import queue as queue
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def find_compilation_database(path):
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- """Adjusts the directory until a compilation database is found."""
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- result = './'
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- while not os.path.isfile(os.path.join(result, path)):
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- if os.path.realpath(result) == '/':
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- print('Error: could not find compilation database.')
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- sys.exit(1)
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- result += '../'
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- return os.path.realpath(result)
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-
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-
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-def get_tidy_invocation(f, clang_tidy_binary, checks, warningsaserrors,
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- tmpdir, build_path,
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- header_filter, extra_arg, extra_arg_before, quiet):
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- """Gets a command line for clang-tidy."""
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- start = [clang_tidy_binary]
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- if header_filter is not None:
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- start.append('-header-filter=' + header_filter)
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- else:
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- # Show warnings in all in-project headers by default.
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- start.append('-header-filter=^' + build_path + '/.*')
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- if checks:
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- start.append('-checks=' + checks)
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- if warningsaserrors:
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- start.append('-warnings-as-errors=' + warningsaserrors)
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- if tmpdir is not None:
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- start.append('-export-fixes')
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- # Get a temporary file. We immediately close the handle so clang-tidy can
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- # overwrite it.
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- (handle, name) = tempfile.mkstemp(suffix='.yaml', dir=tmpdir)
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- os.close(handle)
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- start.append(name)
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- for arg in extra_arg:
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- start.append('-extra-arg=%s' % arg)
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- for arg in extra_arg_before:
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- start.append('-extra-arg-before=%s' % arg)
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- start.append('-p=' + build_path)
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- if quiet:
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- start.append('-quiet')
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- start.append(f)
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- return start
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+ """Adjusts the directory until a compilation database is found."""
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+ result = './'
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+ while not os.path.isfile(os.path.join(result, path)):
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+ if os.path.realpath(result) == '/':
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+ print('Error: could not find compilation database.')
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+ sys.exit(1)
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+ result += '../'
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+ return os.path.realpath(result)
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+
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+
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+def make_absolute(f, directory):
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+ if os.path.isabs(f):
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+ return f
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+ return os.path.normpath(os.path.join(directory, f))
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+
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+
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+def get_tidy_invocation(f, clang_tidy_binary, checks, tmpdir, build_path,
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+ header_filter, extra_arg, extra_arg_before, quiet,
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+ config):
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+ """Gets a command line for clang-tidy."""
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+ start = [clang_tidy_binary]
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+ if header_filter is not None:
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+ start.append('-header-filter=' + header_filter)
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+ if checks:
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+ start.append('-checks=' + checks)
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+ if tmpdir is not None:
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+ start.append('-export-fixes')
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+ # Get a temporary file. We immediately close the handle so clang-tidy can
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+ # overwrite it.
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+ (handle, name) = tempfile.mkstemp(suffix='.yaml', dir=tmpdir)
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+ os.close(handle)
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+ start.append(name)
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+ for arg in extra_arg:
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+ start.append('-extra-arg=%s' % arg)
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+ for arg in extra_arg_before:
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+ start.append('-extra-arg-before=%s' % arg)
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+ start.append('-p=' + build_path)
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+ if quiet:
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+ start.append('-quiet')
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+ if config:
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+ start.append('-config=' + config)
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+ start.append(f)
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+ return start
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+
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+
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+def merge_replacement_files(tmpdir, mergefile):
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+ """Merge all replacement files in a directory into a single file"""
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+ # The fixes suggested by clang-tidy >= 4.0.0 are given under
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+ # the top level key 'Diagnostics' in the output yaml files
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+ mergekey="Diagnostics"
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+ merged=[]
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+ for replacefile in glob.iglob(os.path.join(tmpdir, '*.yaml')):
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+ content = yaml.safe_load(open(replacefile, 'r'))
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+ if not content:
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+ continue # Skip empty files.
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+ merged.extend(content.get(mergekey, []))
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+
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+ if merged:
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+ # MainSourceFile: The key is required by the definition inside
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+ # include/clang/Tooling/ReplacementsYaml.h, but the value
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+ # is actually never used inside clang-apply-replacements,
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+ # so we set it to '' here.
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+ output = { 'MainSourceFile': '', mergekey: merged }
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+ with open(mergefile, 'w') as out:
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+ yaml.safe_dump(output, out)
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+ else:
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+ # Empty the file:
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+ open(mergefile, 'w').close()
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def check_clang_apply_replacements_binary(args):
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- """Checks if invoking supplied clang-apply-replacements binary works."""
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- try:
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- subprocess.check_call([args.clang_apply_replacements_binary, '--version'])
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- except:
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- print('Unable to run clang-apply-replacements. Is clang-apply-replacements '
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- 'binary correctly specified?', file=sys.stderr)
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- traceback.print_exc()
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- sys.exit(1)
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+ """Checks if invoking supplied clang-apply-replacements binary works."""
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+ try:
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+ subprocess.check_call([args.clang_apply_replacements_binary, '--version'])
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+ except:
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+ print('Unable to run clang-apply-replacements. Is clang-apply-replacements '
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+ 'binary correctly specified?', file=sys.stderr)
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+ traceback.print_exc()
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+ sys.exit(1)
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def apply_fixes(args, tmpdir):
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- """Calls clang-apply-fixes on a given directory. Deletes the dir when done."""
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- invocation = [args.clang_apply_replacements_binary]
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- if args.format:
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- invocation.append('-format')
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- if args.style:
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- invocation.append('-style=' + args.style)
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- invocation.append(tmpdir)
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- subprocess.call(invocation)
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-
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-
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-def run_tidy(args, tmpdir, build_path, queue):
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- """Takes filenames out of queue and runs clang-tidy on them."""
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- while True:
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- name = queue.get()
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- invocation = get_tidy_invocation(name, args.clang_tidy_binary, args.checks,
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- args.warningsaserrors, tmpdir, build_path,
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- args.header_filter, args.extra_arg,
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- args.extra_arg_before, args.quiet)
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- if not args.no_command_on_stdout:
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- sys.stdout.write(' '.join(invocation) + '\n')
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- try:
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- subprocess.check_call(invocation)
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- except subprocess.CalledProcessError:
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- queue.has_error = True
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- queue.task_done()
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+ """Calls clang-apply-fixes on a given directory."""
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+ invocation = [args.clang_apply_replacements_binary]
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+ if args.format:
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+ invocation.append('-format')
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+ if args.style:
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+ invocation.append('-style=' + args.style)
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+ invocation.append(tmpdir)
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+ subprocess.call(invocation)
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+
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+
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+def run_tidy(args, tmpdir, build_path, queue, lock, failed_files):
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+ """Takes filenames out of queue and runs clang-tidy on them."""
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+ while True:
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+ name = queue.get()
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+ invocation = get_tidy_invocation(name, args.clang_tidy_binary, args.checks,
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+ tmpdir, build_path, args.header_filter,
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+ args.extra_arg, args.extra_arg_before,
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+ args.quiet, args.config)
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+
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+ proc = subprocess.Popen(invocation)
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+ proc.wait()
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+ if proc.returncode != 0:
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+ failed_files.append(name)
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+ queue.task_done()
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def main():
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- parser = argparse.ArgumentParser(description='Runs clang-tidy over all files '
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- 'in a compilation database. Requires '
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- 'clang-tidy and clang-apply-replacements in '
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- '$PATH.')
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- parser.add_argument('-clang-tidy-binary', metavar='PATH',
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- default='clang-tidy',
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- help='path to clang-tidy binary')
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- parser.add_argument('-clang-apply-replacements-binary', metavar='PATH',
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- default='clang-apply-replacements',
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- help='path to clang-apply-replacements binary')
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- parser.add_argument('-checks', default=None,
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- help='checks filter, when not specified, use clang-tidy '
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- 'default')
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- parser.add_argument('-warningsaserrors', default=None,
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- help='warnings-as-errors filter, when not specified, '
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- 'use clang-tidy default')
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- parser.add_argument('-header-filter', default=None,
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- help='regular expression matching the names of the '
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- 'headers to output diagnostics from. Diagnostics from '
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- 'the main file of each translation unit are always '
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- 'displayed.')
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- parser.add_argument('-j', type=int, default=0,
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- help='number of tidy instances to be run in parallel.')
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- parser.add_argument('files', nargs='*', default=['.*'],
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- help='files to be processed (regex on path)')
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- parser.add_argument('-fix', action='store_true', help='apply fix-its')
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- parser.add_argument('-format', action='store_true', help='Reformat code '
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- 'after applying fixes')
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- parser.add_argument('-style', default='file', help='The style of reformat '
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- 'code after applying fixes')
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- parser.add_argument('-p', dest='build_path',
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- help='Path used to read a compile command database.')
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- parser.add_argument('-extra-arg', dest='extra_arg',
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- action='append', default=[],
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- help='Additional argument to append to the compiler '
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- 'command line.')
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- parser.add_argument('-extra-arg-before', dest='extra_arg_before',
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- action='append', default=[],
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- help='Additional argument to prepend to the compiler '
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- 'command line.')
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- parser.add_argument('-quiet', action='store_true',
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- help='Run clang-tidy in quiet mode')
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- parser.add_argument('-no-command-on-stdout', action='store_true',
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- help='Run clang-tidy without printing invocation on '
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- 'stdout')
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- args = parser.parse_args()
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-
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- db_path = 'compile_commands.json'
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-
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- if args.build_path is not None:
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- build_path = args.build_path
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+ parser = argparse.ArgumentParser(description='Runs clang-tidy over all files '
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+ 'in a compilation database. Requires '
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+ 'clang-tidy and clang-apply-replacements in '
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+ '$PATH.')
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+ parser.add_argument('-clang-tidy-binary', metavar='PATH',
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+ default='clang-tidy',
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+ help='path to clang-tidy binary')
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+ parser.add_argument('-clang-apply-replacements-binary', metavar='PATH',
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+ default='clang-apply-replacements',
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+ help='path to clang-apply-replacements binary')
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+ parser.add_argument('-checks', default=None,
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+ help='checks filter, when not specified, use clang-tidy '
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+ 'default')
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+ parser.add_argument('-config', default=None,
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+ help='Specifies a configuration in YAML/JSON format: '
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+ ' -config="{Checks: \'*\', '
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+ ' CheckOptions: [{key: x, '
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+ ' value: y}]}" '
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+ 'When the value is empty, clang-tidy will '
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+ 'attempt to find a file named .clang-tidy for '
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+ 'each source file in its parent directories.')
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+ parser.add_argument('-header-filter', default=None,
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+ help='regular expression matching the names of the '
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+ 'headers to output diagnostics from. Diagnostics from '
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+ 'the main file of each translation unit are always '
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+ 'displayed.')
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+ if yaml:
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+ parser.add_argument('-export-fixes', metavar='filename', dest='export_fixes',
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+ help='Create a yaml file to store suggested fixes in, '
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+ 'which can be applied with clang-apply-replacements.')
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+ parser.add_argument('-j', type=int, default=0,
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+ help='number of tidy instances to be run in parallel.')
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+ parser.add_argument('files', nargs='*', default=['.*'],
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+ help='files to be processed (regex on path)')
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+ parser.add_argument('-fix', action='store_true', help='apply fix-its')
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+ parser.add_argument('-format', action='store_true', help='Reformat code '
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+ 'after applying fixes')
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+ parser.add_argument('-style', default='file', help='The style of reformat '
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+ 'code after applying fixes')
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+ parser.add_argument('-p', dest='build_path',
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+ help='Path used to read a compile command database.')
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+ parser.add_argument('-extra-arg', dest='extra_arg',
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+ action='append', default=[],
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+ help='Additional argument to append to the compiler '
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+ 'command line.')
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+ parser.add_argument('-extra-arg-before', dest='extra_arg_before',
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+ action='append', default=[],
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+ help='Additional argument to prepend to the compiler '
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+ 'command line.')
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+ parser.add_argument('-quiet', action='store_true',
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+ help='Run clang-tidy in quiet mode')
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+ args = parser.parse_args()
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+
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+ db_path = 'compile_commands.json'
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+
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+ if args.build_path is not None:
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+ build_path = args.build_path
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+ else:
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+ # Find our database
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+ build_path = find_compilation_database(db_path)
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+
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+ try:
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+ invocation = [args.clang_tidy_binary, '-list-checks']
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+ invocation.append('-p=' + build_path)
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+ if args.checks:
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+ invocation.append('-checks=' + args.checks)
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+ invocation.append('-')
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+ if args.quiet:
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+ # Even with -quiet we still want to check if we can call clang-tidy.
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+ with open(os.devnull, 'w') as dev_null:
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+ subprocess.check_call(invocation, stdout=dev_null)
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else:
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- # Find our database
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- build_path = find_compilation_database(db_path)
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-
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+ subprocess.check_call(invocation)
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+ except:
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+ print("Unable to run clang-tidy.", file=sys.stderr)
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+ sys.exit(1)
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+
|
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+ # Load the database and extract all files.
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+ database = json.load(open(os.path.join(build_path, db_path)))
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+ files = [make_absolute(entry['file'], entry['directory'])
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+ for entry in database]
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+
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+ max_task = args.j
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+ if max_task == 0:
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+ max_task = multiprocessing.cpu_count()
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+
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+ tmpdir = None
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+ if args.fix or (yaml and args.export_fixes):
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|
+ check_clang_apply_replacements_binary(args)
|
|
|
+ tmpdir = tempfile.mkdtemp()
|
|
|
+
|
|
|
+ # Build up a big regexy filter from all command line arguments.
|
|
|
+ file_name_re = re.compile('|'.join(args.files))
|
|
|
+
|
|
|
+ return_code = 0
|
|
|
+ try:
|
|
|
+ # Spin up a bunch of tidy-launching threads.
|
|
|
+ task_queue = queue.Queue(max_task)
|
|
|
+ # List of files with a non-zero return code.
|
|
|
+ failed_files = []
|
|
|
+ lock = threading.Lock()
|
|
|
+ for _ in range(max_task):
|
|
|
+ t = threading.Thread(target=run_tidy,
|
|
|
+ args=(args, tmpdir, build_path, task_queue, lock, failed_files))
|
|
|
+ t.daemon = True
|
|
|
+ t.start()
|
|
|
+
|
|
|
+ # Fill the queue with files.
|
|
|
+ for name in files:
|
|
|
+ if file_name_re.search(name):
|
|
|
+ task_queue.put(name)
|
|
|
+
|
|
|
+ # Wait for all threads to be done.
|
|
|
+ task_queue.join()
|
|
|
+ if len(failed_files):
|
|
|
+ return_code = 1
|
|
|
+
|
|
|
+ except KeyboardInterrupt:
|
|
|
+ # This is a sad hack. Unfortunately subprocess goes
|
|
|
+ # bonkers with ctrl-c and we start forking merrily.
|
|
|
+ print('\nCtrl-C detected, goodbye.')
|
|
|
+ if tmpdir:
|
|
|
+ shutil.rmtree(tmpdir)
|
|
|
+ os.kill(0, 9)
|
|
|
+
|
|
|
+ if yaml and args.export_fixes:
|
|
|
+ print('Writing fixes to ' + args.export_fixes + ' ...')
|
|
|
try:
|
|
|
- invocation = [args.clang_tidy_binary, '-list-checks', '-p=' + build_path]
|
|
|
- if args.checks:
|
|
|
- invocation.append('-checks=' + args.checks)
|
|
|
- if args.warningsaserrors:
|
|
|
- invocation.append('-warnings-as-errors=' + args.warningsaserrors)
|
|
|
- invocation.append('-')
|
|
|
- print(subprocess.check_output(invocation))
|
|
|
+ merge_replacement_files(tmpdir, args.export_fixes)
|
|
|
except:
|
|
|
- print("Unable to run clang-tidy.", file=sys.stderr)
|
|
|
- sys.exit(1)
|
|
|
-
|
|
|
- # Load the database and extract all files.
|
|
|
- database = json.load(open(os.path.join(build_path, db_path)))
|
|
|
- files = [entry['file'] for entry in database]
|
|
|
-
|
|
|
- max_task = args.j
|
|
|
- if max_task == 0:
|
|
|
- max_task = multiprocessing.cpu_count()
|
|
|
-
|
|
|
- tmpdir = None
|
|
|
- if args.fix:
|
|
|
- check_clang_apply_replacements_binary(args)
|
|
|
- tmpdir = tempfile.mkdtemp()
|
|
|
-
|
|
|
- # Build up a big regexy filter from all command line arguments.
|
|
|
- file_name_re = re.compile('|'.join(args.files))
|
|
|
+ print('Error exporting fixes.\n', file=sys.stderr)
|
|
|
+ traceback.print_exc()
|
|
|
+ return_code=1
|
|
|
|
|
|
+ if args.fix:
|
|
|
+ print('Applying fixes ...')
|
|
|
try:
|
|
|
- # Spin up a bunch of tidy-launching threads.
|
|
|
- queue = TidyQueue(max_task)
|
|
|
- for _ in range(max_task):
|
|
|
- t = threading.Thread(target=run_tidy,
|
|
|
- args=(args, tmpdir, build_path, queue))
|
|
|
- t.daemon = True
|
|
|
- t.start()
|
|
|
-
|
|
|
- # Fill the queue with files.
|
|
|
- for name in files:
|
|
|
- if file_name_re.search(name):
|
|
|
- queue.put(name)
|
|
|
-
|
|
|
- # Wait for all threads to be done.
|
|
|
- queue.join()
|
|
|
-
|
|
|
- # If one clang-tidy process found and error, exit with non-zero
|
|
|
- # status
|
|
|
- if queue.has_error:
|
|
|
- sys.exit(2)
|
|
|
-
|
|
|
- except KeyboardInterrupt:
|
|
|
- # This is a sad hack. Unfortunately subprocess goes
|
|
|
- # bonkers with ctrl-c and we start forking merrily.
|
|
|
- print('\nCtrl-C detected, goodbye.')
|
|
|
- if args.fix:
|
|
|
- shutil.rmtree(tmpdir)
|
|
|
- os.kill(0, 9)
|
|
|
-
|
|
|
- if args.fix:
|
|
|
- print('Applying fixes ...')
|
|
|
- successfully_applied = False
|
|
|
-
|
|
|
- try:
|
|
|
- apply_fixes(args, tmpdir)
|
|
|
- successfully_applied = True
|
|
|
- except:
|
|
|
- print('Error applying fixes.\n', file=sys.stderr)
|
|
|
- traceback.print_exc()
|
|
|
-
|
|
|
- shutil.rmtree(tmpdir)
|
|
|
- if not successfully_applied:
|
|
|
- sys.exit(1)
|
|
|
+ apply_fixes(args, tmpdir)
|
|
|
+ except:
|
|
|
+ print('Error applying fixes.\n', file=sys.stderr)
|
|
|
+ traceback.print_exc()
|
|
|
+ return_code=1
|
|
|
|
|
|
+ if tmpdir:
|
|
|
+ shutil.rmtree(tmpdir)
|
|
|
+ sys.exit(return_code)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
- main()
|
|
|
+ main()
|
sfan5