mirror of
https://github.com/mozilla/gecko-dev.git
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a173d30242
This reverts commit c315404db80c92a695531b0aa4bcf61c125a3bff, reversing changes made to b00583bd4e7169a6b952633df718268904f2bd0c. Source-Repo: https://github.com/servo/servo Source-Revision: 47d6d958f58f5011742a18abcdd5a76bf4390966
297 lines
9.5 KiB
Python
297 lines
9.5 KiB
Python
# Copyright 2013 The Servo Project Developers. See the COPYRIGHT
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# file at the top-level directory of this distribution.
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#
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# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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# option. This file may not be copied, modified, or distributed
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# except according to those terms.
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import contextlib
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import os
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import fnmatch
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import itertools
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import re
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import StringIO
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import sys
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from licenseck import licenses
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filetypes_to_check = [".rs", ".rc", ".cpp", ".c", ".h", ".py", ".toml", ".webidl"]
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reftest_directories = ["tests/ref"]
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reftest_filetype = ".list"
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python_dependencies = [
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"./python/dependencies/flake8-2.4.1-py2.py3-none-any.whl",
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"./python/dependencies/pep8-1.5.7-py2.py3-none-any.whl",
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"./python/dependencies/pyflakes-0.9.0-py2.py3-none-any.whl",
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]
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ignored_files = [
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# Upstream
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"support/*",
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"tests/wpt/*",
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"python/mach/*",
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"python/mozdebug/*",
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"python/mozinfo/*",
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"python/mozlog/*",
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"python/toml/*",
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"components/script/dom/bindings/codegen/parser/*",
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"components/script/dom/bindings/codegen/ply/*",
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# Generated and upstream code combined with our own. Could use cleanup
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"target/*",
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"ports/gonk/src/native_window_glue.cpp",
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"ports/cef/*",
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# MIT license
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"components/util/deque/mod.rs",
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# Hidden files/directories
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".*",
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]
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def collect_file_names(top_directories=None):
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if top_directories is None:
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top_directories = os.listdir(".")
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for top_directory in top_directories:
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for dirname, dirs, files in os.walk(top_directory):
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for basename in files:
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yield os.path.join(dirname, basename)
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def should_check(file_name):
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if ".#" in file_name:
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return False
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if os.path.splitext(file_name)[1] not in filetypes_to_check:
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return False
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for pattern in ignored_files:
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if fnmatch.fnmatch(file_name, pattern):
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return False
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return True
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def should_check_reftest(file_name):
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return file_name.endswith(reftest_filetype)
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EMACS_HEADER = "/* -*- Mode:"
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VIM_HEADER = "/* vim:"
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def check_license(file_name, contents):
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if file_name.endswith(".toml"):
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raise StopIteration
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while contents.startswith(EMACS_HEADER) or contents.startswith(VIM_HEADER):
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_, _, contents = contents.partition("\n")
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valid_license = any(contents.startswith(license) for license in licenses)
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acknowledged_bad_license = "xfail-license" in contents[:100]
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if not (valid_license or acknowledged_bad_license):
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yield (1, "incorrect license")
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def check_length(idx, line):
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if len(line) >= 120:
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yield (idx + 1, "(much) overlong line")
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def check_whatwg_url(idx, line):
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match = re.search(r"https://html\.spec\.whatwg\.org/multipage/[\w-]+\.html#([\w\:-]+)", line)
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if match is not None:
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preferred_link = "https://html.spec.whatwg.org/multipage/#{}".format(match.group(1))
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yield (idx + 1, "link to WHATWG may break in the future, use this format instead: {}".format(preferred_link))
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def check_whitespace(idx, line):
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if line[-1] == "\n":
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line = line[:-1]
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else:
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yield (idx + 1, "no newline at EOF")
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if line.endswith(" "):
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yield (idx + 1, "trailing whitespace")
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if "\t" in line:
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yield (idx + 1, "tab on line")
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if "\r" in line:
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yield (idx + 1, "CR on line")
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def check_by_line(file_name, contents):
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lines = contents.splitlines(True)
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for idx, line in enumerate(lines):
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errors = itertools.chain(
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check_length(idx, line),
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check_whitespace(idx, line),
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check_whatwg_url(idx, line),
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)
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for error in errors:
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yield error
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def check_flake8(file_name, contents):
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from flake8.main import check_code
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if not file_name.endswith(".py"):
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raise StopIteration
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@contextlib.contextmanager
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def stdout_redirect(where):
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sys.stdout = where
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try:
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yield where
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finally:
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sys.stdout = sys.__stdout__
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ignore = {
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"W291", # trailing whitespace; the standard tidy process will enforce no trailing whitespace
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"E501", # 80 character line length; the standard tidy process will enforce line length
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}
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output = StringIO.StringIO()
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with stdout_redirect(output):
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check_code(contents, ignore=ignore)
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for error in output.getvalue().splitlines():
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_, line_num, _, message = error.split(":", 3)
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yield line_num, message.strip()
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def check_toml(file_name, contents):
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if not file_name.endswith(".toml"):
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raise StopIteration
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contents = contents.splitlines(True)
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for idx, line in enumerate(contents):
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if line.find("*") != -1:
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yield (idx + 1, "found asterisk instead of minimum version number")
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def check_webidl_spec(file_name, contents):
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# Sorted by this function (in pseudo-Rust). The idea is to group the same
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# organization together.
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# fn sort_standards(a: &Url, b: &Url) -> Ordering {
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# let a_domain = a.domain().split(".");
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# a_domain.pop();
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# a_domain.reverse();
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# let b_domain = b.domain().split(".");
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# b_domain.pop();
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# b_domain.reverse();
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# for i in a_domain.into_iter().zip(b_domain.into_iter()) {
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# match i.0.cmp(b.0) {
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# Less => return Less,
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# Greater => return Greater,
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# _ => (),
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# }
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# }
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# a_domain.path().cmp(b_domain.path())
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# }
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if not file_name.endswith(".webidl"):
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raise StopIteration
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standards = [
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"//www.khronos.org/registry/webgl/specs",
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"//developer.mozilla.org/en-US/docs/Web/API",
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"//dev.w3.org/2006/webapi",
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"//dev.w3.org/csswg",
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"//dev.w3.org/fxtf",
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"//dvcs.w3.org/hg",
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"//dom.spec.whatwg.org",
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"//domparsing.spec.whatwg.org",
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"//encoding.spec.whatwg.org",
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"//html.spec.whatwg.org",
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"//url.spec.whatwg.org",
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"//xhr.spec.whatwg.org",
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"//www.whatwg.org/html",
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"//www.whatwg.org/specs",
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"//w3c.github.io",
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# Not a URL
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"// This interface is entirely internal to Servo, and should not be" +
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" accessible to\n// web pages."
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]
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for i in standards:
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if contents.find(i) != -1:
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raise StopIteration
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yield 0, "No specification link found."
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def check_spec(file_name, contents):
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base_path = "components/script/dom/"
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if base_path not in file_name:
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raise StopIteration
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file_name = os.path.relpath(os.path.splitext(file_name)[0], base_path)
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patt = re.compile("^\s*\/\/.+")
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pattern = "impl<'a> %sMethods for &'a %s {" % (file_name, file_name)
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contents = contents.splitlines(True)
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brace_count = 0
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in_impl = False
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for idx, line in enumerate(contents):
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if "// check-tidy: no specs after this line" in line:
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break
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if not patt.match(line):
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if pattern.lower() in line.lower():
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in_impl = True
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if "fn " in line and brace_count == 1:
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if "// https://" not in contents[idx - 1] and "// https://" not in contents[idx - 2]:
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yield (idx + 1, "method declared in webidl is missing a comment with a specification link")
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if '{' in line and in_impl:
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brace_count += 1
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if '}' in line and in_impl:
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if brace_count == 1:
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break
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brace_count -= 1
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def collect_errors_for_files(files_to_check, checking_functions):
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base_path = "components/script/dom/"
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for file_name in files_to_check:
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with open(file_name, "r") as fp:
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contents = fp.read()
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for check in checking_functions:
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for error in check(file_name, contents):
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# filename, line, message
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yield (file_name, error[0], error[1])
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def check_reftest_order(files_to_check):
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for file_name in files_to_check:
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with open(file_name, "r") as fp:
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split_lines = fp.read().splitlines()
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lines = filter(lambda l: len(l) > 0 and l[0] != '#', split_lines)
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for idx, line in enumerate(lines[:-1]):
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next_line = lines[idx + 1]
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current = get_reftest_names(line)
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next = get_reftest_names(next_line)
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if current is not None and next is not None and current > next:
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yield (file_name, split_lines.index(next_line) + 1, "line not in alphabetical order")
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def get_reftest_names(line):
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tokens = line.split()
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if (len(tokens) == 3):
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return tokens[1] + tokens[2]
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if (len(tokens) == 4):
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return tokens[2] + tokens[3]
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return None
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def scan():
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sys.path += python_dependencies
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all_files = collect_file_names()
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files_to_check = filter(should_check, all_files)
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checking_functions = [check_license, check_by_line, check_flake8, check_toml, check_webidl_spec, check_spec]
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errors = collect_errors_for_files(files_to_check, checking_functions)
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reftest_files = collect_file_names(reftest_directories)
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reftest_to_check = filter(should_check_reftest, reftest_files)
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r_errors = check_reftest_order(reftest_to_check)
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errors = list(itertools.chain(errors, r_errors))
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if errors:
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for error in errors:
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print "\033[94m{}\033[0m:\033[93m{}\033[0m: \033[91m{}\033[0m".format(*error)
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return 1
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else:
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print "\033[92mtidy reported no errors.\033[0m"
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return 0
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