mirror of
https://github.com/esphome/esphome.git
synced 2024-11-26 12:27:13 +01:00
643 lines
18 KiB
Python
Executable File
643 lines
18 KiB
Python
Executable File
#!/usr/bin/env python3
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import codecs
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import collections
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import fnmatch
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import os.path
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import re
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import subprocess
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import sys
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import time
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import functools
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import argparse
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sys.path.append(os.path.dirname(__file__))
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from helpers import git_ls_files, filter_changed
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def find_all(a_str, sub):
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if not a_str.find(sub):
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# Optimization: If str is not in whole text, then do not try
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# on each line
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return
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for i, line in enumerate(a_str.splitlines()):
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column = 0
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while True:
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column = line.find(sub, column)
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if column == -1:
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break
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yield i, column
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column += len(sub)
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"files", nargs="*", default=[], help="files to be processed (regex on path)"
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)
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parser.add_argument(
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"-c", "--changed", action="store_true", help="Only run on changed files"
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)
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parser.add_argument(
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"--print-slowest", action="store_true", help="Print the slowest checks"
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)
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args = parser.parse_args()
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EXECUTABLE_BIT = git_ls_files()
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files = list(EXECUTABLE_BIT.keys())
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# Match against re
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file_name_re = re.compile("|".join(args.files))
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files = [p for p in files if file_name_re.search(p)]
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if args.changed:
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files = filter_changed(files)
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files.sort()
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file_types = (
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".h",
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".c",
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".cpp",
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".tcc",
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".yaml",
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".yml",
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".ini",
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".txt",
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".ico",
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".svg",
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".py",
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".html",
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".js",
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".md",
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".sh",
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".css",
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".proto",
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".conf",
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".cfg",
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".woff",
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".woff2",
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"",
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)
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cpp_include = ("*.h", "*.c", "*.cpp", "*.tcc")
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ignore_types = (".ico", ".woff", ".woff2", "")
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LINT_FILE_CHECKS = []
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LINT_CONTENT_CHECKS = []
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LINT_POST_CHECKS = []
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def run_check(lint_obj, fname, *args):
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include = lint_obj["include"]
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exclude = lint_obj["exclude"]
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func = lint_obj["func"]
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if include is not None:
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for incl in include:
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if fnmatch.fnmatch(fname, incl):
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break
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else:
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return None
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for excl in exclude:
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if fnmatch.fnmatch(fname, excl):
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return None
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return func(*args)
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def run_checks(lints, fname, *args):
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for lint in lints:
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start = time.process_time()
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try:
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add_errors(fname, run_check(lint, fname, *args))
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except Exception:
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print(f"Check {lint['func'].__name__} on file {fname} failed:")
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raise
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duration = time.process_time() - start
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lint.setdefault("durations", []).append(duration)
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def _add_check(checks, func, include=None, exclude=None):
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checks.append(
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{
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"include": include,
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"exclude": exclude or [],
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"func": func,
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}
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)
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def lint_file_check(**kwargs):
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def decorator(func):
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_add_check(LINT_FILE_CHECKS, func, **kwargs)
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return func
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return decorator
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def lint_content_check(**kwargs):
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def decorator(func):
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_add_check(LINT_CONTENT_CHECKS, func, **kwargs)
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return func
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return decorator
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def lint_post_check(func):
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_add_check(LINT_POST_CHECKS, func)
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return func
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def lint_re_check(regex, **kwargs):
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flags = kwargs.pop("flags", re.MULTILINE)
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prog = re.compile(regex, flags)
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decor = lint_content_check(**kwargs)
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def decorator(func):
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@functools.wraps(func)
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def new_func(fname, content):
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errors = []
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for match in prog.finditer(content):
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if "NOLINT" in match.group(0):
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continue
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lineno = content.count("\n", 0, match.start()) + 1
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substr = content[: match.start()]
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col = len(substr) - substr.rfind("\n")
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err = func(fname, match)
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if err is None:
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continue
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errors.append((lineno, col + 1, err))
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return errors
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return decor(new_func)
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return decorator
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def lint_content_find_check(find, **kwargs):
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decor = lint_content_check(**kwargs)
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def decorator(func):
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@functools.wraps(func)
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def new_func(fname, content):
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find_ = find
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if callable(find):
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find_ = find(fname, content)
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errors = []
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for line, col in find_all(content, find_):
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err = func(fname)
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errors.append((line + 1, col + 1, err))
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return errors
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return decor(new_func)
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return decorator
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@lint_file_check(include=["*.ino"])
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def lint_ino(fname):
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return "This file extension (.ino) is not allowed. Please use either .cpp or .h"
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@lint_file_check(
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exclude=[f"*{f}" for f in file_types]
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+ [
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".clang-*",
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".dockerignore",
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".editorconfig",
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"*.gitignore",
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"LICENSE",
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"pylintrc",
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"MANIFEST.in",
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"docker/Dockerfile*",
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"docker/rootfs/*",
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"script/*",
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]
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)
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def lint_ext_check(fname):
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return (
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"This file extension is not a registered file type. If this is an error, please "
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"update the script/ci-custom.py script."
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)
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@lint_file_check(exclude=["docker/rootfs/*", "docker/*.py", "script/*", "setup.py"])
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def lint_executable_bit(fname):
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ex = EXECUTABLE_BIT[fname]
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if ex != 100644:
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return (
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"File has invalid executable bit {}. If running from a windows machine please "
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"see disabling executable bit in git.".format(ex)
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)
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return None
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@lint_content_find_check(
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"\t",
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exclude=[
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"esphome/dashboard/static/ace.js",
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"esphome/dashboard/static/ext-searchbox.js",
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],
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)
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def lint_tabs(fname):
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return "File contains tab character. Please convert tabs to spaces."
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@lint_content_find_check("\r")
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def lint_newline(fname):
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return "File contains windows newline. Please set your editor to unix newline mode."
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@lint_content_check(exclude=["*.svg"])
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def lint_end_newline(fname, content):
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if content and not content.endswith("\n"):
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return "File does not end with a newline, please add an empty line at the end of the file."
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return None
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CPP_RE_EOL = r"\s*?(?://.*?)?$"
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def highlight(s):
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return f"\033[36m{s}\033[0m"
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@lint_re_check(
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r"^#define\s+([a-zA-Z0-9_]+)\s+([0-9bx]+)" + CPP_RE_EOL,
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include=cpp_include,
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exclude=["esphome/core/log.h"],
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)
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def lint_no_defines(fname, match):
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s = highlight(
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"static const uint8_t {} = {};".format(match.group(1), match.group(2))
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)
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return (
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"#define macros for integer constants are not allowed, please use "
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"{} style instead (replace uint8_t with the appropriate "
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"datatype). See also Google style guide.".format(s)
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)
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@lint_re_check(r"^\s*delay\((\d+)\);" + CPP_RE_EOL, include=cpp_include)
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def lint_no_long_delays(fname, match):
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duration_ms = int(match.group(1))
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if duration_ms < 50:
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return None
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return (
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"{} - long calls to delay() are not allowed in ESPHome because everything executes "
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"in one thread. Calling delay() will block the main thread and slow down ESPHome.\n"
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"If there's no way to work around the delay() and it doesn't execute often, please add "
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"a '// NOLINT' comment to the line."
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"".format(highlight(match.group(0).strip()))
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)
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@lint_content_check(include=["esphome/const.py"])
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def lint_const_ordered(fname, content):
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"""Lint that value in const.py are ordered.
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Reason: Otherwise people add it to the end, and then that results in merge conflicts.
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"""
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lines = content.splitlines()
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errors = []
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for start in ["CONF_", "ICON_", "UNIT_"]:
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matching = [
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(i + 1, line) for i, line in enumerate(lines) if line.startswith(start)
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]
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ordered = list(sorted(matching, key=lambda x: x[1].replace("_", " ")))
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ordered = [(mi, ol) for (mi, _), (_, ol) in zip(matching, ordered)]
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for (mi, ml), (oi, ol) in zip(matching, ordered):
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if ml == ol:
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continue
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target = next(i for i, l in ordered if l == ml)
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target_text = next(l for i, l in matching if target == i)
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errors.append(
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(
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mi,
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1,
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f"Constant {highlight(ml)} is not ordered, please make sure all "
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f"constants are ordered. See line {mi} (should go to line {target}, "
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f"{target_text})",
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)
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)
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return errors
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@lint_re_check(r'^\s*CONF_([A-Z_0-9a-z]+)\s+=\s+[\'"](.*?)[\'"]\s*?$', include=["*.py"])
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def lint_conf_matches(fname, match):
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const = match.group(1)
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value = match.group(2)
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const_norm = const.lower()
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value_norm = value.replace(".", "_")
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if const_norm == value_norm:
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return None
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return (
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"Constant {} does not match value {}! Please make sure the constant's name matches its "
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"value!"
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"".format(highlight("CONF_" + const), highlight(value))
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)
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CONF_RE = r'^(CONF_[a-zA-Z0-9_]+)\s*=\s*[\'"].*?[\'"]\s*?$'
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with codecs.open("esphome/const.py", "r", encoding="utf-8") as f_handle:
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constants_content = f_handle.read()
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CONSTANTS = [m.group(1) for m in re.finditer(CONF_RE, constants_content, re.MULTILINE)]
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CONSTANTS_USES = collections.defaultdict(list)
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@lint_re_check(CONF_RE, include=["*.py"], exclude=["esphome/const.py"])
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def lint_conf_from_const_py(fname, match):
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name = match.group(1)
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if name not in CONSTANTS:
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CONSTANTS_USES[name].append(fname)
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return None
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return (
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"Constant {} has already been defined in const.py - please import the constant from "
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"const.py directly.".format(highlight(name))
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)
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RAW_PIN_ACCESS_RE = (
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r"^\s(pinMode|digitalWrite|digitalRead)\((.*)->get_pin\(\),\s*([^)]+).*\)"
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)
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@lint_re_check(RAW_PIN_ACCESS_RE, include=cpp_include)
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def lint_no_raw_pin_access(fname, match):
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func = match.group(1)
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pin = match.group(2)
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mode = match.group(3)
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new_func = {
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"pinMode": "pin_mode",
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"digitalWrite": "digital_write",
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"digitalRead": "digital_read",
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}[func]
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new_code = highlight(f"{pin}->{new_func}({mode})")
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return f"Don't use raw {func} calls. Instead, use the `->{new_func}` function: {new_code}"
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# Functions from Arduino framework that are forbidden to use directly
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ARDUINO_FORBIDDEN = [
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"digitalWrite",
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"digitalRead",
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"pinMode",
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"shiftOut",
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"shiftIn",
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"radians",
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"degrees",
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"interrupts",
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"noInterrupts",
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"lowByte",
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"highByte",
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"bitRead",
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"bitSet",
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"bitClear",
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"bitWrite",
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"bit",
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"analogRead",
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"analogWrite",
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"pulseIn",
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"pulseInLong",
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"tone",
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]
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ARDUINO_FORBIDDEN_RE = r"[^\w\d](" + r"|".join(ARDUINO_FORBIDDEN) + r")\(.*"
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@lint_re_check(
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ARDUINO_FORBIDDEN_RE,
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include=cpp_include,
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exclude=[
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"esphome/components/mqtt/custom_mqtt_device.h",
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"esphome/components/sun/sun.cpp",
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"esphome/core/esphal.*",
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],
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)
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def lint_no_arduino_framework_functions(fname, match):
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nolint = highlight("// NOLINT")
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return (
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f"The function {highlight(match.group(1))} from the Arduino framework is forbidden to be "
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f"used directly in the ESPHome codebase. Please use ESPHome's abstractions and equivalent "
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f"C++ instead.\n"
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f"\n"
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f"(If the function is strictly necessary, please add `{nolint}` to the end of the line)"
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)
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@lint_re_check(
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r"[^\w\d]byte\s+[\w\d]+\s*=",
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include=cpp_include,
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exclude={
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"esphome/components/tuya/tuya.h",
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},
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)
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def lint_no_byte_datatype(fname, match):
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return (
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f"The datatype {highlight('byte')} is not allowed to be used in ESPHome. "
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f"Please use {highlight('uint8_t')} instead."
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)
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@lint_post_check
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def lint_constants_usage():
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errors = []
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for constant, uses in CONSTANTS_USES.items():
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if len(uses) < 4:
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continue
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errors.append(
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"Constant {} is defined in {} files. Please move all definitions of the "
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"constant to const.py (Uses: {})"
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"".format(highlight(constant), len(uses), ", ".join(uses))
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)
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return errors
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def relative_cpp_search_text(fname, content):
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parts = fname.split("/")
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integration = parts[2]
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return f'#include "esphome/components/{integration}'
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@lint_content_find_check(relative_cpp_search_text, include=["esphome/components/*.cpp"])
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def lint_relative_cpp_import(fname):
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return (
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"Component contains absolute import - Components must always use "
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"relative imports.\n"
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"Change:\n"
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' #include "esphome/components/abc/abc.h"\n'
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"to:\n"
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' #include "abc.h"\n\n'
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)
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def relative_py_search_text(fname, content):
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parts = fname.split("/")
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integration = parts[2]
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return f"esphome.components.{integration}"
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@lint_content_find_check(
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relative_py_search_text,
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include=["esphome/components/*.py"],
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exclude=["esphome/components/web_server/__init__.py"],
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)
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def lint_relative_py_import(fname):
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return (
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"Component contains absolute import - Components must always use "
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"relative imports within the integration.\n"
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"Change:\n"
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' from esphome.components.abc import abc_ns"\n'
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"to:\n"
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" from . import abc_ns\n\n"
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)
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@lint_content_check(
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include=[
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"esphome/components/*.h",
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"esphome/components/*.cpp",
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"esphome/components/*.tcc",
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]
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)
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def lint_namespace(fname, content):
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expected_name = re.match(
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r"^esphome/components/([^/]+)/.*", fname.replace(os.path.sep, "/")
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).group(1)
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search = f"namespace {expected_name}"
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if search in content:
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return None
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return (
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"Invalid namespace found in C++ file. All integration C++ files should put all "
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"functions in a separate namespace that matches the integration's name. "
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"Please make sure the file contains {}".format(highlight(search))
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)
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@lint_content_find_check('"esphome.h"', include=cpp_include, exclude=["tests/custom.h"])
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def lint_esphome_h(fname):
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return (
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"File contains reference to 'esphome.h' - This file is "
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"auto-generated and should only be used for *custom* "
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"components. Please replace with references to the direct files."
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)
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@lint_content_check(include=["*.h"])
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def lint_pragma_once(fname, content):
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if "#pragma once" not in content:
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return (
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"Header file contains no 'pragma once' header guard. Please add a "
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"'#pragma once' line at the top of the file."
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)
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return None
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@lint_re_check(
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r"(whitelist|blacklist|slave)",
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exclude=["script/ci-custom.py"],
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flags=re.IGNORECASE | re.MULTILINE,
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)
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def lint_inclusive_language(fname, match):
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# From https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=49decddd39e5f6132ccd7d9fdc3d7c470b0061bb
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return (
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"Avoid the use of whitelist/blacklist/slave.\n"
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"Recommended replacements for 'master / slave' are:\n"
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" '{primary,main} / {secondary,replica,subordinate}\n"
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" '{initiator,requester} / {target,responder}'\n"
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" '{controller,host} / {device,worker,proxy}'\n"
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" 'leader / follower'\n"
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" 'director / performer'\n"
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"\n"
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"Recommended replacements for 'blacklist/whitelist' are:\n"
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" 'denylist / allowlist'\n"
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" 'blocklist / passlist'"
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)
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@lint_content_find_check(
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"ESP_LOG",
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include=["*.h", "*.tcc"],
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exclude=[
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"esphome/components/binary_sensor/binary_sensor.h",
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"esphome/components/cover/cover.h",
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"esphome/components/display/display_buffer.h",
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"esphome/components/i2c/i2c.h",
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"esphome/components/mqtt/mqtt_component.h",
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"esphome/components/number/number.h",
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"esphome/components/output/binary_output.h",
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"esphome/components/output/float_output.h",
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"esphome/components/sensor/sensor.h",
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"esphome/components/stepper/stepper.h",
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"esphome/components/switch/switch.h",
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"esphome/components/text_sensor/text_sensor.h",
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"esphome/components/climate/climate.h",
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"esphome/core/component.h",
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"esphome/core/esphal.h",
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"esphome/core/log.h",
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"tests/custom.h",
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],
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)
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def lint_log_in_header(fname):
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return (
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"Found reference to ESP_LOG in header file. Using ESP_LOG* in header files "
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"is currently not possible - please move the definition to a source file (.cpp)"
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)
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errors = collections.defaultdict(list)
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def add_errors(fname, errs):
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if not isinstance(errs, list):
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errs = [errs]
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for err in errs:
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if err is None:
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continue
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try:
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lineno, col, msg = err
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except ValueError:
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lineno = 1
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col = 1
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msg = err
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if not isinstance(msg, str):
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raise ValueError("Error is not instance of string!")
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if not isinstance(lineno, int):
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raise ValueError("Line number is not an int!")
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if not isinstance(col, int):
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raise ValueError("Column number is not an int!")
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errors[fname].append((lineno, col, msg))
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for fname in files:
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_, ext = os.path.splitext(fname)
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run_checks(LINT_FILE_CHECKS, fname, fname)
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if ext in ignore_types:
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continue
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try:
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with codecs.open(fname, "r", encoding="utf-8") as f_handle:
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content = f_handle.read()
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except UnicodeDecodeError:
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add_errors(
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fname,
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"File is not readable as UTF-8. Please set your editor to UTF-8 mode.",
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)
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continue
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run_checks(LINT_CONTENT_CHECKS, fname, fname, content)
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run_checks(LINT_POST_CHECKS, "POST")
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for f, errs in sorted(errors.items()):
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print(f"\033[0;32m************* File \033[1;32m{f}\033[0m")
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for lineno, col, msg in errs:
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print(f"ERROR {f}:{lineno}:{col} - {msg}")
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print()
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if args.print_slowest:
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lint_times = []
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for lint in LINT_FILE_CHECKS + LINT_CONTENT_CHECKS + LINT_POST_CHECKS:
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durations = lint.get("durations", [])
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lint_times.append((sum(durations), len(durations), lint["func"].__name__))
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lint_times.sort(key=lambda x: -x[0])
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for i in range(min(len(lint_times), 10)):
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dur, invocations, name = lint_times[i]
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print(f" - '{name}' took {dur:.2f}s total (ran on {invocations} files)")
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print(f"Total time measured: {sum(x[0] for x in lint_times):.2f}s")
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sys.exit(len(errors))
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