1
0
mirror of https://github.com/esphome/esphome.git synced 2024-12-28 17:37:44 +01:00
esphome/script/clang-tidy
2022-02-10 09:55:11 +01:00

284 lines
8.5 KiB
Python
Executable File

#!/usr/bin/env python3
from helpers import (
print_error_for_file,
get_output,
filter_grep,
build_all_include,
temp_header_file,
git_ls_files,
filter_changed,
load_idedata,
root_path,
basepath,
)
import argparse
import click
import colorama
import multiprocessing
import os
import queue
import re
import shutil
import subprocess
import sys
import tempfile
import threading
def clang_options(idedata):
cmd = []
# extract target architecture from triplet in g++ filename
triplet = os.path.basename(idedata["cxx_path"])[:-4]
if triplet.startswith("xtensa-"):
# clang doesn't support Xtensa (yet?), so compile in 32-bit mode and pretend we're the Xtensa compiler
cmd.append("-m32")
cmd.append("-D__XTENSA__")
else:
cmd.append(f"--target={triplet}")
# set flags
cmd.extend(
[
# disable built-in include directories from the host
"-nostdinc",
"-nostdinc++",
# replace pgmspace.h, as it uses GNU extensions clang doesn't support
# https://github.com/earlephilhower/newlib-xtensa/pull/18
"-D_PGMSPACE_H_",
"-Dpgm_read_byte(s)=(*(const uint8_t *)(s))",
"-Dpgm_read_byte_near(s)=(*(const uint8_t *)(s))",
"-Dpgm_read_word(s)=(*(const uint16_t *)(s))",
"-Dpgm_read_dword(s)=(*(const uint32_t *)(s))",
"-DPROGMEM=",
"-DPGM_P=const char *",
"-DPSTR(s)=(s)",
# this next one is also needed with upstream pgmspace.h
# suppress warning about identifier naming in expansion of this macro
"-DPSTRN(s, n)=(s)",
# suppress warning about attribute cannot be applied to type
# https://github.com/esp8266/Arduino/pull/8258
"-Ddeprecated(x)=",
# allow to condition code on the presence of clang-tidy
"-DCLANG_TIDY",
# (esp-idf) Disable this header because they use asm with registers clang-tidy doesn't know
"-D__XTENSA_API_H__",
# (esp-idf) Fix __once_callable in some libstdc++ headers
"-D_GLIBCXX_HAVE_TLS",
]
)
# 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",
"-fstrict-volatile-bitfields",
"-mlongcalls",
"-mtext-section-literals",
"-mfix-esp32-psram-cache-issue",
"-mfix-esp32-psram-cache-strategy=memw",
)
)
# defines
cmd.extend(f"-D{define}" for define in idedata["defines"])
# add toolchain include directories using -isystem to suppress their errors
# idedata contains include directories for all toolchains of this platform, only use those from the one in use
toolchain_dir = os.path.normpath(f"{idedata['cxx_path']}/../../")
for directory in idedata["includes"]["toolchain"]:
if directory.startswith(toolchain_dir):
cmd.extend(["-isystem", directory])
# add library include directories using -isystem to suppress their errors
for directory in sorted(set(idedata["includes"]["build"])):
# skip our own directories, we add those later
if not directory.startswith(f"{root_path}/") or directory.startswith(
f"{root_path}/.pio/"
):
cmd.extend(["-isystem", directory])
# add the esphome include directory using -I
cmd.extend(["-I", root_path])
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")
if sys.stdout.isatty():
invocation.append("--use-color")
invocation.append(f"--header-filter={os.path.abspath(basepath)}/.*")
invocation.append(os.path.abspath(path))
invocation.append("--")
invocation.extend(options)
proc = subprocess.run(invocation, capture_output=True, encoding="utf-8")
if proc.returncode != 0:
with lock:
print_error_for_file(path, proc.stdout)
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():
colorama.init()
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(
"-e",
"--environment",
default="esp32-arduino-tidy",
help="the PlatformIO environment to use (as defined in platformio.ini)",
)
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("-g", "--grep", help="only run on files containing value")
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(args.environment)
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)
if args.grep:
files = filter_grep(files, args.grep)
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()