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esphome/script/ci-custom.py

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#!/usr/bin/env python3
import codecs
import collections
import fnmatch
import os.path
import re
import subprocess
import sys
import time
import functools
import argparse
sys.path.append(os.path.dirname(__file__))
from helpers import git_ls_files, filter_changed
def find_all(a_str, sub):
if not a_str.find(sub):
# Optimization: If str is not in whole text, then do not try
# on each line
return
for i, line in enumerate(a_str.splitlines()):
column = 0
while True:
column = line.find(sub, column)
if column == -1:
break
yield i, column
column += len(sub)
parser = argparse.ArgumentParser()
parser.add_argument('files', nargs='*', default=[],
help='files to be processed (regex on path)')
parser.add_argument('-c', '--changed', action='store_true',
help='Only run on changed files')
parser.add_argument('--print-slowest', action='store_true',
help='Print the slowest checks')
args = parser.parse_args()
EXECUTABLE_BIT = git_ls_files()
files = list(EXECUTABLE_BIT.keys())
# Match against re
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()
file_types = ('.h', '.c', '.cpp', '.tcc', '.yaml', '.yml', '.ini', '.txt', '.ico', '.svg',
'.py', '.html', '.js', '.md', '.sh', '.css', '.proto', '.conf', '.cfg',
'.woff', '.woff2', '')
cpp_include = ('*.h', '*.c', '*.cpp', '*.tcc')
ignore_types = ('.ico', '.woff', '.woff2', '')
LINT_FILE_CHECKS = []
LINT_CONTENT_CHECKS = []
LINT_POST_CHECKS = []
def run_check(lint_obj, fname, *args):
include = lint_obj['include']
exclude = lint_obj['exclude']
func = lint_obj['func']
if include is not None:
for incl in include:
if fnmatch.fnmatch(fname, incl):
break
else:
return None
for excl in exclude:
if fnmatch.fnmatch(fname, excl):
return None
return func(*args)
def run_checks(lints, fname, *args):
for lint in lints:
start = time.process_time()
try:
add_errors(fname, run_check(lint, fname, *args))
except Exception:
print(f"Check {lint['func'].__name__} on file {fname} failed:")
raise
duration = time.process_time() - start
lint.setdefault('durations', []).append(duration)
def _add_check(checks, func, include=None, exclude=None):
checks.append({
'include': include,
'exclude': exclude or [],
'func': func,
})
def lint_file_check(**kwargs):
def decorator(func):
_add_check(LINT_FILE_CHECKS, func, **kwargs)
return func
return decorator
def lint_content_check(**kwargs):
def decorator(func):
_add_check(LINT_CONTENT_CHECKS, func, **kwargs)
return func
return decorator
def lint_post_check(func):
_add_check(LINT_POST_CHECKS, func)
return func
def lint_re_check(regex, **kwargs):
flags = kwargs.pop('flags', re.MULTILINE)
prog = re.compile(regex, flags)
decor = lint_content_check(**kwargs)
def decorator(func):
@functools.wraps(func)
def new_func(fname, content):
errors = []
for match in prog.finditer(content):
if 'NOLINT' in match.group(0):
continue
lineno = content.count("\n", 0, match.start()) + 1
substr = content[:match.start()]
col = len(substr) - substr.rfind('\n')
err = func(fname, match)
if err is None:
continue
errors.append((lineno, col+1, err))
return errors
return decor(new_func)
return decorator
def lint_content_find_check(find, **kwargs):
decor = lint_content_check(**kwargs)
def decorator(func):
@functools.wraps(func)
def new_func(fname, content):
find_ = find
if callable(find):
find_ = find(fname, content)
errors = []
for line, col in find_all(content, find_):
err = func(fname)
errors.append((line+1, col+1, err))
return errors
return decor(new_func)
return decorator
@lint_file_check(include=['*.ino'])
def lint_ino(fname):
return "This file extension (.ino) is not allowed. Please use either .cpp or .h"
@lint_file_check(exclude=[f'*{f}' for f in file_types] + [
'.clang-*', '.dockerignore', '.editorconfig', '*.gitignore', 'LICENSE', 'pylintrc',
'MANIFEST.in', 'docker/Dockerfile*', 'docker/rootfs/*', 'script/*',
])
def lint_ext_check(fname):
return "This file extension is not a registered file type. If this is an error, please " \
"update the script/ci-custom.py script."
@lint_file_check(exclude=[
'docker/rootfs/*', 'script/*', 'setup.py'
])
def lint_executable_bit(fname):
ex = EXECUTABLE_BIT[fname]
if ex != 100644:
return 'File has invalid executable bit {}. If running from a windows machine please ' \
'see disabling executable bit in git.'.format(ex)
return None
@lint_content_find_check('\t', exclude=[
'esphome/dashboard/static/ace.js', 'esphome/dashboard/static/ext-searchbox.js',
])
def lint_tabs(fname):
return "File contains tab character. Please convert tabs to spaces."
@lint_content_find_check('\r')
def lint_newline(fname):
return "File contains windows newline. Please set your editor to unix newline mode."
@lint_content_check(exclude=['*.svg'])
def lint_end_newline(fname, content):
if content and not content.endswith('\n'):
return "File does not end with a newline, please add an empty line at the end of the file."
return None
CPP_RE_EOL = r'\s*?(?://.*?)?$'
def highlight(s):
return f'\033[36m{s}\033[0m'
@lint_re_check(r'^#define\s+([a-zA-Z0-9_]+)\s+([0-9bx]+)' + CPP_RE_EOL,
include=cpp_include, exclude=['esphome/core/log.h'])
def lint_no_defines(fname, match):
s = highlight('static const uint8_t {} = {};'.format(match.group(1), match.group(2)))
return ("#define macros for integer constants are not allowed, please use "
"{} style instead (replace uint8_t with the appropriate "
"datatype). See also Google style guide.".format(s))
@lint_re_check(r'^\s*delay\((\d+)\);' + CPP_RE_EOL, include=cpp_include)
def lint_no_long_delays(fname, match):
duration_ms = int(match.group(1))
if duration_ms < 50:
return None
return (
"{} - long calls to delay() are not allowed in ESPHome because everything executes "
"in one thread. Calling delay() will block the main thread and slow down ESPHome.\n"
"If there's no way to work around the delay() and it doesn't execute often, please add "
"a '// NOLINT' comment to the line."
"".format(highlight(match.group(0).strip()))
)
@lint_content_check(include=['esphome/const.py'])
def lint_const_ordered(fname, content):
"""Lint that value in const.py are ordered.
Reason: Otherwise people add it to the end, and then that results in merge conflicts.
"""
lines = content.splitlines()
errors = []
for start in ['CONF_', 'ICON_', 'UNIT_']:
matching = [(i+1, line) for i, line in enumerate(lines) if line.startswith(start)]
ordered = list(sorted(matching, key=lambda x: x[1].replace('_', ' ')))
ordered = [(mi, ol) for (mi, _), (_, ol) in zip(matching, ordered)]
for (mi, ml), (oi, ol) in zip(matching, ordered):
if ml == ol:
continue
target = next(i for i, l in ordered if l == ml)
target_text = next(l for i, l in matching if target == i)
errors.append((mi, 1,
f"Constant {highlight(ml)} is not ordered, please make sure all "
f"constants are ordered. See line {mi} (should go to line {target}, "
f"{target_text})"))
return errors
@lint_re_check(r'^\s*CONF_([A-Z_0-9a-z]+)\s+=\s+[\'"](.*?)[\'"]\s*?$', include=['*.py'])
def lint_conf_matches(fname, match):
const = match.group(1)
value = match.group(2)
const_norm = const.lower()
value_norm = value.replace('.', '_')
if const_norm == value_norm:
return None
return ("Constant {} does not match value {}! Please make sure the constant's name matches its "
"value!"
"".format(highlight('CONF_' + const), highlight(value)))
CONF_RE = r'^(CONF_[a-zA-Z0-9_]+)\s*=\s*[\'"].*?[\'"]\s*?$'
with codecs.open('esphome/const.py', 'r', encoding='utf-8') as f_handle:
constants_content = f_handle.read()
CONSTANTS = [m.group(1) for m in re.finditer(CONF_RE, constants_content, re.MULTILINE)]
CONSTANTS_USES = collections.defaultdict(list)
@lint_re_check(CONF_RE, include=['*.py'], exclude=['esphome/const.py'])
def lint_conf_from_const_py(fname, match):
name = match.group(1)
if name not in CONSTANTS:
CONSTANTS_USES[name].append(fname)
return None
return ("Constant {} has already been defined in const.py - please import the constant from "
"const.py directly.".format(highlight(name)))
RAW_PIN_ACCESS_RE = r'^\s(pinMode|digitalWrite|digitalRead)\((.*)->get_pin\(\),\s*([^)]+).*\)'
@lint_re_check(RAW_PIN_ACCESS_RE, include=cpp_include)
def lint_no_raw_pin_access(fname, match):
func = match.group(1)
pin = match.group(2)
mode = match.group(3)
new_func = {
'pinMode': 'pin_mode',
'digitalWrite': 'digital_write',
'digitalRead': 'digital_read',
}[func]
new_code = highlight(f'{pin}->{new_func}({mode})')
return (f"Don't use raw {func} calls. Instead, use the `->{new_func}` function: {new_code}")
# Functions from Arduino framework that are forbidden to use directly
ARDUINO_FORBIDDEN = [
'digitalWrite', 'digitalRead', 'pinMode',
'shiftOut', 'shiftIn',
'radians', 'degrees',
'interrupts', 'noInterrupts',
'lowByte', 'highByte',
'bitRead', 'bitSet', 'bitClear', 'bitWrite',
'bit', 'analogRead', 'analogWrite',
'pulseIn', 'pulseInLong',
'tone',
]
ARDUINO_FORBIDDEN_RE = r'[^\w\d](' + r'|'.join(ARDUINO_FORBIDDEN) + r')\(.*'
@lint_re_check(ARDUINO_FORBIDDEN_RE, include=cpp_include, exclude=[
'esphome/components/mqtt/custom_mqtt_device.h',
'esphome/core/esphal.*',
])
def lint_no_arduino_framework_functions(fname, match):
nolint = highlight("// NOLINT")
return (
f"The function {highlight(match.group(1))} from the Arduino framework is forbidden to be "
f"used directly in the ESPHome codebase. Please use ESPHome's abstractions and equivalent "
f"C++ instead.\n"
f"\n"
f"(If the function is strictly necessary, please add `{nolint}` to the end of the line)"
)
@lint_re_check(r'[^\w\d]byte\s+[\w\d]+\s*=', include=cpp_include, exclude={
'esphome/components/tuya/tuya.h',
})
def lint_no_byte_datatype(fname, match):
return (
f"The datatype {highlight('byte')} is not allowed to be used in ESPHome. "
f"Please use {highlight('uint8_t')} instead."
)
@lint_post_check
def lint_constants_usage():
errors = []
for constant, uses in CONSTANTS_USES.items():
if len(uses) < 4:
continue
errors.append("Constant {} is defined in {} files. Please move all definitions of the "
"constant to const.py (Uses: {})"
"".format(highlight(constant), len(uses), ', '.join(uses)))
return errors
def relative_cpp_search_text(fname, content):
parts = fname.split('/')
integration = parts[2]
return f'#include "esphome/components/{integration}'
@lint_content_find_check(relative_cpp_search_text, include=['esphome/components/*.cpp'])
def lint_relative_cpp_import(fname):
return ("Component contains absolute import - Components must always use "
"relative imports.\n"
"Change:\n"
' #include "esphome/components/abc/abc.h"\n'
'to:\n'
' #include "abc.h"\n\n')
def relative_py_search_text(fname, content):
parts = fname.split('/')
integration = parts[2]
return f'esphome.components.{integration}'
@lint_content_find_check(relative_py_search_text, include=['esphome/components/*.py'],
exclude=['esphome/components/web_server/__init__.py'])
def lint_relative_py_import(fname):
return ("Component contains absolute import - Components must always use "
"relative imports within the integration.\n"
"Change:\n"
' from esphome.components.abc import abc_ns"\n'
'to:\n'
' from . import abc_ns\n\n')
@lint_content_check(include=['esphome/components/*.h', 'esphome/components/*.cpp',
'esphome/components/*.tcc'])
def lint_namespace(fname, content):
expected_name = re.match(r'^esphome/components/([^/]+)/.*',
fname.replace(os.path.sep, '/')).group(1)
search = f'namespace {expected_name}'
if search in content:
return None
return 'Invalid namespace found in C++ file. All integration C++ files should put all ' \
'functions in a separate namespace that matches the integration\'s name. ' \
'Please make sure the file contains {}'.format(highlight(search))
@lint_content_find_check('"esphome.h"', include=cpp_include, exclude=['tests/custom.h'])
def lint_esphome_h(fname):
return ("File contains reference to 'esphome.h' - This file is "
"auto-generated and should only be used for *custom* "
"components. Please replace with references to the direct files.")
@lint_content_check(include=['*.h'])
def lint_pragma_once(fname, content):
if '#pragma once' not in content:
return ("Header file contains no 'pragma once' header guard. Please add a "
"'#pragma once' line at the top of the file.")
return None
@lint_re_check(r'(whitelist|blacklist|slave)',
exclude=['script/ci-custom.py'], flags=re.IGNORECASE | re.MULTILINE)
def lint_inclusive_language(fname, match):
# From https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=49decddd39e5f6132ccd7d9fdc3d7c470b0061bb
return ("Avoid the use of whitelist/blacklist/slave.\n"
"Recommended replacements for 'master / slave' are:\n"
" '{primary,main} / {secondary,replica,subordinate}\n"
" '{initiator,requester} / {target,responder}'\n"
" '{controller,host} / {device,worker,proxy}'\n"
" 'leader / follower'\n"
" 'director / performer'\n"
"\n"
"Recommended replacements for 'blacklist/whitelist' are:\n"
" 'denylist / allowlist'\n"
" 'blocklist / passlist'")
@lint_content_find_check('ESP_LOG', include=['*.h', '*.tcc'], exclude=[
'esphome/components/binary_sensor/binary_sensor.h',
'esphome/components/cover/cover.h',
'esphome/components/display/display_buffer.h',
'esphome/components/i2c/i2c.h',
'esphome/components/mqtt/mqtt_component.h',
'esphome/components/output/binary_output.h',
'esphome/components/output/float_output.h',
'esphome/components/sensor/sensor.h',
'esphome/components/stepper/stepper.h',
'esphome/components/switch/switch.h',
'esphome/components/text_sensor/text_sensor.h',
'esphome/components/climate/climate.h',
'esphome/core/component.h',
'esphome/core/esphal.h',
'esphome/core/log.h',
'tests/custom.h',
])
def lint_log_in_header(fname):
return ('Found reference to ESP_LOG in header file. Using ESP_LOG* in header files '
'is currently not possible - please move the definition to a source file (.cpp)')
errors = collections.defaultdict(list)
def add_errors(fname, errs):
if not isinstance(errs, list):
errs = [errs]
for err in errs:
if err is None:
continue
try:
lineno, col, msg = err
except ValueError:
lineno = 1
col = 1
msg = err
if not isinstance(msg, str):
raise ValueError("Error is not instance of string!")
if not isinstance(lineno, int):
raise ValueError("Line number is not an int!")
if not isinstance(col, int):
raise ValueError("Column number is not an int!")
errors[fname].append((lineno, col, msg))
for fname in files:
_, ext = os.path.splitext(fname)
run_checks(LINT_FILE_CHECKS, fname, fname)
if ext in ignore_types:
continue
try:
with codecs.open(fname, 'r', encoding='utf-8') as f_handle:
content = f_handle.read()
except UnicodeDecodeError:
add_errors(fname, "File is not readable as UTF-8. Please set your editor to UTF-8 mode.")
continue
run_checks(LINT_CONTENT_CHECKS, fname, fname, content)
run_checks(LINT_POST_CHECKS, 'POST')
for f, errs in sorted(errors.items()):
print(f"\033[0;32m************* File \033[1;32m{f}\033[0m")
for lineno, col, msg in errs:
print(f"ERROR {f}:{lineno}:{col} - {msg}")
print()
if args.print_slowest:
lint_times = []
for lint in LINT_FILE_CHECKS + LINT_CONTENT_CHECKS + LINT_POST_CHECKS:
durations = lint.get('durations', [])
lint_times.append((sum(durations), len(durations), lint['func'].__name__))
lint_times.sort(key=lambda x: -x[0])
for i in range(min(len(lint_times), 10)):
dur, invocations, name = lint_times[i]
print(f" - '{name}' took {dur:.2f}s total (ran on {invocations} files)")
print(f"Total time measured: {sum(x[0] for x in lint_times):.2f}s")
sys.exit(len(errors))
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