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authorGabriel Pérez-Cerezo <gabriel@gpcf.eu>2018-06-19 10:40:41 +0200
committerGabriel Pérez-Cerezo <gabriel@gpcf.eu>2018-06-19 10:40:41 +0200
commit85b22333c5fd2b1105434d3c9aee98eabffee906 (patch)
tree404caebea6fdad4878d8cdcf5b3b01a1ca2e7bf9 /assets/blender/subway-train_animate_mirrored_solidify_uv.xcf
parent816d97e1a6c9b7823ce5bb955f9c62e8627cd098 (diff)
parenta5942bdf465eb24f460f192e9097d67f24c0ced2 (diff)
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#!/usr/bin/env python2
#
# ===- run-clang-tidy.py - Parallel clang-tidy runner ---------*- python -*--===#
#
#                     The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
# ===------------------------------------------------------------------------===#
# FIXME: Integrate with clang-tidy-diff.py

"""
Parallel clang-tidy runner
==========================

Runs clang-tidy over all files in a compilation database. Requires clang-tidy
and clang-apply-replacements in $PATH.

Example invocations.
- Run clang-tidy on all files in the current working directory with a default
  set of checks and show warnings in the cpp files and all project headers.
    run-clang-tidy.py $PWD

- Fix all header guards.
    run-clang-tidy.py -fix -checks=-*,llvm-header-guard

- Fix all header guards included from clang-tidy and header guards
  for clang-tidy headers.
    run-clang-tidy.py -fix -checks=-*,llvm-header-guard extra/clang-tidy \
                      -header-filter=extra/clang-tidy

Compilation database setup:
http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
"""

from __future__ import print_function
import argparse
import json
import multiprocessing
import os
import Queue
import re
import shutil
import subprocess
import sys
import tempfile
import threading
import traceback


class TidyQueue(Queue.Queue):
    def __init__(self, max_task):
        Queue.Queue.__init__(self, max_task)
        self.has_error = False


def find_compilation_database(path):
    """Adjusts the directory until a compilation database is found."""
    result = './'
    while not os.path.isfile(os.path.join(result, path)):
        if os.path.realpath(result) == '/':
            print('Error: could not find compilation database.')
            sys.exit(1)
        result += '../'
    return os.path.realpath(result)


def get_tidy_invocation(f, clang_tidy_binary, checks, warningsaserrors,
                        tmpdir, build_path,
                        header_filter, extra_arg, extra_arg_before, quiet):
    """Gets a command line for clang-tidy."""
    start = [clang_tidy_binary]
    if header_filter is not None:
        start.append('-header-filter=' + header_filter)
    else:
        # Show warnings in all in-project headers by default.
        start.append('-header-filter=^' + build_path + '/.*')
    if checks:
        start.append('-checks=' + checks)
    if warningsaserrors:
        start.append('-warnings-as-errors=' + warningsaserrors)
    if tmpdir is not None:
        start.append('-export-fixes')
        # Get a temporary file. We immediately close the handle so clang-tidy can
        # overwrite it.
        (handle, name) = tempfile.mkstemp(suffix='.yaml', dir=tmpdir)
        os.close(handle)
        start.append(name)
    for arg in extra_arg:
        start.append('-extra-arg=%s' % arg)
    for arg in extra_arg_before:
        start.append('-extra-arg-before=%s' % arg)
    start.append('-p=' + build_path)
    if quiet:
        start.append('-quiet')
    start.append(f)
    return start


def check_clang_apply_replacements_binary(args):
    """Checks if invoking supplied clang-apply-replacements binary works."""
    try:
        subprocess.check_call([args.clang_apply_replacements_binary, '--version'])
    except:
        print('Unable to run clang-apply-replacements. Is clang-apply-replacements '
              'binary correctly specified?', file=sys.stderr)
        traceback.print_exc()
        sys.exit(1)


def apply_fixes(args, tmpdir):
    """Calls clang-apply-fixes on a given directory. Deletes the dir when done."""
    invocation = [args.clang_apply_replacements_binary]
    if args.format:
        invocation.append('-format')
    if args.style:
        invocation.append('-style=' + args.style)
    invocation.append(tmpdir)
    subprocess.call(invocation)


def run_tidy(args, tmpdir, build_path, queue):
    """Takes filenames out of queue and runs clang-tidy on them."""
    while True:
        name = queue.get()
        invocation = get_tidy_invocation(name, args.clang_tidy_binary, args.checks,
                                         args.warningsaserrors, tmpdir, build_path,
                                         args.header_filter, args.extra_arg,
                                         args.extra_arg_before, args.quiet)
        if not args.no_command_on_stdout:
            sys.stdout.write(' '.join(invocation) + '\n')
        try: