esphome/script/clang-tidy
Oxan van Leeuwen bf5f846fc6
Refactor clang-tidy script to use actual compiler flags and includes (#2133)
Co-authored-by: Otto winter <otto@otto-winter.com>
2021-08-09 22:43:18 +02:00

196 lines
6.2 KiB
Python
Executable File

#!/usr/bin/env python3
import argparse
import json
import multiprocessing
import os
import queue
import re
import shutil
import subprocess
import sys
import tempfile
import threading
import click
import pexpect
sys.path.append(os.path.dirname(__file__))
from helpers import shlex_quote, get_output, \
build_all_include, temp_header_file, git_ls_files, filter_changed, load_idedata
def clang_options(idedata):
cmd = [
# target 32-bit arch (this prevents size mismatch errors on a 64-bit host)
'-m32',
# disable built-in include directories from the host
'-nostdinc',
'-nostdinc++',
# allow to condition code on the presence of clang-tidy
'-DCLANG_TIDY'
]
# copy compiler flags, except those clang doesn't understand.
cmd.extend(flag for flag in idedata['cxx_flags'].split(' ')
if flag not in ('-free', '-fipa-pta', '-mlongcalls', '-mtext-section-literals'))
# defines
cmd.extend(f'-D{define}' for define in idedata['defines'])
# add include directories, using -isystem for dependencies to suppress their errors
for directory in idedata['includes']['toolchain']:
cmd.extend(['-isystem', directory])
for directory in sorted(set(idedata['includes']['build'])):
dependency = "framework-arduino" in directory or "/libdeps/" in directory
cmd.extend(['-isystem' if dependency else '-I', directory])
return cmd
def run_tidy(args, options, tmpdir, queue, lock, failed_files):
while True:
path = queue.get()
invocation = ['clang-tidy-11']
if tmpdir is not None:
invocation.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)
invocation.append(name)
if args.quiet:
invocation.append('-quiet')
invocation.append(os.path.abspath(path))
invocation.append('--')
invocation.extend(options)
invocation_s = ' '.join(shlex_quote(x) for x in invocation)
# Use pexpect for a pseudy-TTY with colored output
output, rc = pexpect.run(invocation_s, withexitstatus=True, encoding='utf-8',
timeout=15 * 60)
if rc != 0:
with lock:
print()
print("\033[0;32m************* File \033[1;32m{}\033[0m".format(path))
print(output)
print()
failed_files.append(path)
queue.task_done()
def progress_bar_show(value):
if value is None:
return ''
def split_list(a, n):
k, m = divmod(len(a), n)
return [a[i * k + min(i, m):(i + 1) * k + min(i + 1, m)] for i in range(n)]
def main():
parser = argparse.ArgumentParser()
parser.add_argument('-j', '--jobs', type=int,
default=multiprocessing.cpu_count(),
help='number of tidy instances to be run in parallel.')
parser.add_argument('files', nargs='*', default=[],
help='files to be processed (regex on path)')
parser.add_argument('--fix', action='store_true', help='apply fix-its')
parser.add_argument('-q', '--quiet', action='store_false',
help='run clang-tidy in quiet mode')
parser.add_argument('-c', '--changed', action='store_true',
help='only run on changed files')
parser.add_argument('--split-num', type=int, help='split the files into X jobs.',
default=None)
parser.add_argument('--split-at', type=int, help='which split is this? starts at 1',
default=None)
parser.add_argument('--all-headers', action='store_true',
help='create a dummy file that checks all headers')
args = parser.parse_args()
try:
get_output('clang-tidy-11', '-version')
except:
print("""
Oops. It looks like clang-tidy-11 is not installed.
Please check you can run "clang-tidy-11 -version" in your terminal and install
clang-tidy (v11) if necessary.
Note you can also upload your code as a pull request on GitHub and see the CI check
output to apply clang-tidy.
""")
return 1
idedata = load_idedata("esp8266-tidy")
options = clang_options(idedata)
files = []
for path in git_ls_files(['*.cpp']):
files.append(os.path.relpath(path, os.getcwd()))
if args.files:
# Match against files specified on command-line
file_name_re = re.compile('|'.join(args.files))
files = [p for p in files if file_name_re.search(p)]
if args.changed:
files = filter_changed(files)
files.sort()
if args.split_num:
files = split_list(files, args.split_num)[args.split_at - 1]
if args.all_headers and args.split_at in (None, 1):
build_all_include()
files.insert(0, temp_header_file)
tmpdir = None
if args.fix:
tmpdir = tempfile.mkdtemp()
failed_files = []
try:
task_queue = queue.Queue(args.jobs)
lock = threading.Lock()
for _ in range(args.jobs):
t = threading.Thread(target=run_tidy,
args=(args, options, tmpdir, task_queue, lock, failed_files))
t.daemon = True
t.start()
# Fill the queue with files.
with click.progressbar(files, width=30, file=sys.stderr,
item_show_func=progress_bar_show) as bar:
for name in bar:
task_queue.put(name)
# Wait for all threads to be done.
task_queue.join()
except KeyboardInterrupt:
print()
print('Ctrl-C detected, goodbye.')
if tmpdir:
shutil.rmtree(tmpdir)
os.kill(0, 9)
if args.fix and failed_files:
print('Applying fixes ...')
try:
subprocess.call(['clang-apply-replacements-11', tmpdir])
except:
print('Error applying fixes.\n', file=sys.stderr)
raise
sys.exit(len(failed_files))
if __name__ == '__main__':
main()