Files
zulip/tools/linter_lib/custom_check.py
Tim Abbott c931e76cf2 docs: Rewrite docs on writing API documentation.
This had gotten badly out of date, since it wasn't updated when we did
the big migration to the OpenAPI documentation system.

Fixes part of #12571.
2019-07-19 18:00:01 -07:00

861 lines
42 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import print_function
from __future__ import absolute_import
from zulint.custom_rules import RuleList
from typing import cast, Any, Dict, List, Tuple
Rule = List[Dict[str, Any]]
# Rule help:
# By default, a rule applies to all files within the extension for which it is specified (e.g. all .py files)
# There are three operators we can use to manually include or exclude files from linting for a rule:
# 'exclude': 'set([<path>, ...])' - if <path> is a filename, excludes that file.
# if <path> is a directory, excludes all files directly below the directory <path>.
# 'exclude_line': 'set([(<path>, <line>), ...])' - excludes all lines matching <line> in the file <path> from linting.
# 'include_only': 'set([<path>, ...])' - includes only those files where <path> is a substring of the filepath.
LineTup = Tuple[int, str, str, str]
PYDELIMS = r'''"'()\[\]{}#\\'''
PYREG = r"[^{}]".format(PYDELIMS)
PYSQ = r'"(?:[^"\\]|\\.)*"'
PYDQ = r"'(?:[^'\\]|\\.)*'"
PYLEFT = r"[(\[{]"
PYRIGHT = r"[)\]}]"
PYCODE = PYREG
for depth in range(5):
PYGROUP = r"""(?:{}|{}|{}{}*{})""".format(PYSQ, PYDQ, PYLEFT, PYCODE, PYRIGHT)
PYCODE = r"""(?:{}|{})""".format(PYREG, PYGROUP)
FILES_WITH_LEGACY_SUBJECT = {
# This basically requires a big DB migration:
'zerver/lib/topic.py',
# This is for backward compatibility.
'zerver/tests/test_legacy_subject.py',
# Other migration-related changes require extreme care.
'zerver/lib/fix_unreads.py',
'zerver/tests/test_migrations.py',
# These use subject in the email sense, and will
# probably always be exempt:
'zerver/lib/email_mirror.py',
'zerver/lib/feedback.py',
'zerver/tests/test_new_users.py',
'zerver/tests/test_email_mirror.py',
# These are tied more to our API than our DB model.
'zerver/lib/api_test_helpers.py',
'zerver/tests/test_openapi.py',
# This has lots of query data embedded, so it's hard
# to fix everything until we migrate the DB to "topic".
'zerver/tests/test_narrow.py',
}
shebang_rules = [
{'pattern': '^#!',
'description': "zerver library code shouldn't have a shebang line.",
'include_only': set(['zerver/'])},
# /bin/sh and /usr/bin/env are the only two binaries
# that NixOS provides at a fixed path (outside a
# buildFHSUserEnv sandbox).
{'pattern': '^#!(?! *(?:/usr/bin/env|/bin/sh)(?: |$))',
'description': "Use `#!/usr/bin/env foo` instead of `#!/path/foo`"
" for interpreters other than sh."},
{'pattern': '^#!/usr/bin/env python$',
'description': "Use `#!/usr/bin/env python3` instead of `#!/usr/bin/env python`."}
] # type: Rule
trailing_whitespace_rule = {
'pattern': r'\s+$',
'strip': '\n',
'description': 'Fix trailing whitespace'
}
whitespace_rules = [
# This linter should be first since bash_rules depends on it.
trailing_whitespace_rule,
{'pattern': 'http://zulip.readthedocs.io',
'description': 'Use HTTPS when linking to ReadTheDocs',
},
{'pattern': '\t',
'strip': '\n',
'exclude': set(['tools/ci/success-http-headers.txt']),
'description': 'Fix tab-based whitespace'},
] # type: Rule
comma_whitespace_rule = [
{'pattern': ', {2,}[^#/ ]',
'exclude': set(['zerver/tests', 'frontend_tests/node_tests', 'corporate/tests']),
'description': "Remove multiple whitespaces after ','",
'good_lines': ['foo(1, 2, 3)', 'foo = bar # some inline comment'],
'bad_lines': ['foo(1, 2, 3)', 'foo(1, 2, 3)']},
] # type: Rule
markdown_whitespace_rules = list([rule for rule in whitespace_rules if rule['pattern'] != r'\s+$']) + [
# Two spaces trailing a line with other content is okay--it's a markdown line break.
# This rule finds one space trailing a non-space, three or more trailing spaces, and
# spaces on an empty line.
{'pattern': r'((?<!\s)\s$)|(\s\s\s+$)|(^\s+$)',
'strip': '\n',
'description': 'Fix trailing whitespace'},
{'pattern': '^#+[A-Za-z0-9]',
'strip': '\n',
'description': 'Missing space after # in heading',
'good_lines': ['### some heading', '# another heading'],
'bad_lines': ['###some heading', '#another heading']},
] # type: Rule
js_rules = RuleList(
langs=['js'],
rules=cast(Rule, [
{'pattern': 'subject|SUBJECT',
'exclude': set(['static/js/util.js',
'frontend_tests/']),
'exclude_pattern': 'emails',
'description': 'avoid subject in JS code',
'good_lines': ['topic_name'],
'bad_lines': ['subject="foo"', ' MAX_SUBJECT_LEN']},
{'pattern': r'[^_]function\(',
'description': 'The keyword "function" should be followed by a space'},
{'pattern': r'.*blueslip.warning\(.*',
'description': 'The module blueslip has no function warning, try using blueslip.warn'},
{'pattern': '[)]{$',
'description': 'Missing space between ) and {'},
{'pattern': r'i18n\.t\([^)]+[^,\{\)]$',
'description': 'i18n string should not be a multiline string'},
{'pattern': r'''i18n\.t\(['"].+?['"]\s*\+''',
'description': 'Do not concatenate arguments within i18n.t()'},
{'pattern': r'i18n\.t\(.+\).*\+',
'description': 'Do not concatenate i18n strings'},
{'pattern': r'\+.*i18n\.t\(.+\)',
'description': 'Do not concatenate i18n strings'},
{'pattern': '[.]includes[(]',
'exclude': ['frontend_tests/'],
'description': '.includes() is incompatible with Internet Explorer. Use .indexOf() !== -1 instead.'},
{'pattern': '[.]html[(]',
'exclude_pattern': r'''[.]html[(]("|'|render_|html|message.content|sub.rendered_description|i18n.t|rendered_|$|[)]|error_text|widget_elem|[$]error|[$][(]"<p>"[)])''',
'exclude': ['static/js/portico', 'static/js/lightbox.js', 'static/js/ui_report.js',
'static/js/confirm_dialog.js',
'frontend_tests/'],
'description': 'Setting HTML content with jQuery .html() can lead to XSS security bugs. Consider .text() or using rendered_foo as a variable name if content comes from handlebars and thus is already sanitized.'},
{'pattern': '["\']json/',
'description': 'Relative URL for JSON route not supported by i18n'},
# This rule is constructed with + to avoid triggering on itself
{'pattern': " =" + '[^ =>~"]',
'description': 'Missing whitespace after "="'},
{'pattern': '^[ ]*//[A-Za-z0-9]',
'description': 'Missing space after // in comment'},
{'pattern': 'if[(]',
'description': 'Missing space between if and ('},
{'pattern': 'else{$',
'description': 'Missing space between else and {'},
{'pattern': '^else {$',
'description': 'Write JS else statements on same line as }'},
{'pattern': '^else if',
'description': 'Write JS else statements on same line as }'},
{'pattern': r'const\s',
'exclude': set(['frontend_tests/zjsunit',
'frontend_tests/node_tests',
'static/js/portico',
'tools/']),
'description': 'Avoid ES6 constructs until we upgrade our pipeline.'},
{'pattern': 'console[.][a-z]',
'exclude': set(['static/js/blueslip.js',
'frontend_tests/zjsunit',
'frontend_tests/casper_lib/common.js',
'frontend_tests/node_tests',
'static/js/debug.js']),
'description': 'console.log and similar should not be used in webapp'},
{'pattern': r'''[.]text\(["'][a-zA-Z]''',
'description': 'Strings passed to $().text should be wrapped in i18n.t() for internationalization',
'exclude': set(['frontend_tests/node_tests/'])},
{'pattern': r'''compose_error\(["']''',
'description': 'Argument to compose_error should be a literal string enclosed '
'by i18n.t()'},
{'pattern': r'ui.report_success\(',
'description': 'Deprecated function, use ui_report.success.'},
{'pattern': r'''report.success\(["']''',
'description': 'Argument to report_success should be a literal string enclosed '
'by i18n.t()'},
{'pattern': r'ui.report_error\(',
'description': 'Deprecated function, use ui_report.error.'},
{'pattern': r'''report.error\(["'][^'"]''',
'description': 'Argument to ui_report.error should be a literal string enclosed '
'by i18n.t()',
'good_lines': ['ui_report.error("")', 'ui_report.error(_("text"))'],
'bad_lines': ['ui_report.error("test")']},
{'pattern': r'\$\(document\)\.ready\(',
'description': "`Use $(f) rather than `$(document).ready(f)`",
'good_lines': ['$(function () {foo();}'],
'bad_lines': ['$(document).ready(function () {foo();}']},
{'pattern': '[$][.](get|post|patch|delete|ajax)[(]',
'description': "Use channel module for AJAX calls",
'exclude': set([
# Internal modules can do direct network calls
'static/js/blueslip.js',
'static/js/channel.js',
# External modules that don't include channel.js
'static/js/stats/',
'static/js/portico/',
'static/js/billing/',
]),
'good_lines': ['channel.get(...)'],
'bad_lines': ['$.get()', '$.post()', '$.ajax()']},
{'pattern': 'style ?=',
'description': "Avoid using the `style=` attribute; we prefer styling in CSS files",
'exclude': set([
'frontend_tests/node_tests/copy_and_paste.js',
'frontend_tests/node_tests/upload.js',
'frontend_tests/node_tests/templates.js',
'static/js/upload.js',
'static/js/stream_color.js',
]),
'good_lines': ['#my-style {color: blue;}'],
'bad_lines': ['<p style="color: blue;">Foo</p>', 'style = "color: blue;"']},
]) + whitespace_rules + comma_whitespace_rule,
)
python_rules = RuleList(
langs=['py'],
rules=cast(Rule, [
{'pattern': 'subject|SUBJECT',
'exclude_pattern': 'subject to the|email|outbox',
'description': 'avoid subject as a var',
'good_lines': ['topic_name'],
'bad_lines': ['subject="foo"', ' MAX_SUBJECT_LEN'],
'exclude': FILES_WITH_LEGACY_SUBJECT,
'include_only': set([
'zerver/data_import/',
'zerver/lib/',
'zerver/tests/',
'zerver/views/'])},
{'pattern': '^(?!#)@login_required',
'description': '@login_required is unsupported; use @zulip_login_required',
'good_lines': ['@zulip_login_required', '# foo @login_required'],
'bad_lines': ['@login_required', ' @login_required']},
{'pattern': '^user_profile[.]save[(][)]',
'description': 'Always pass update_fields when saving user_profile objects',
'exclude_line': set([
('zerver/lib/actions.py', "user_profile.save() # Can't use update_fields because of how the foreign key works."),
]),
'exclude': set(['zerver/tests', 'zerver/lib/create_user.py']),
'good_lines': ['user_profile.save(update_fields=["pointer"])'],
'bad_lines': ['user_profile.save()']},
{'pattern': r'^[^"]*"[^"]*"%\(',
'description': 'Missing space around "%"',
'good_lines': ['"%s" % ("foo")', '"%s" % (foo)'],
'bad_lines': ['"%s"%("foo")', '"%s"%(foo)']},
{'pattern': r"^[^']*'[^']*'%\(",
'description': 'Missing space around "%"',
'good_lines': ["'%s' % ('foo')", "'%s' % (foo)"],
'bad_lines': ["'%s'%('foo')", "'%s'%(foo)"]},
{'pattern': 'self: Any',
'description': 'you can omit Any annotation for self',
'good_lines': ['def foo (self):'],
'bad_lines': ['def foo(self: Any):']},
# This rule is constructed with + to avoid triggering on itself
{'pattern': " =" + '[^ =>~"]',
'description': 'Missing whitespace after "="',
'good_lines': ['a = b', '5 == 6'],
'bad_lines': ['a =b', 'asdf =42']},
{'pattern': r'":\w[^"]*$',
'description': 'Missing whitespace after ":"',
'good_lines': ['"foo": bar', '"some:string:with:colons"'],
'bad_lines': ['"foo":bar', '"foo":1']},
{'pattern': r"':\w[^']*$",
'description': 'Missing whitespace after ":"',
'good_lines': ["'foo': bar", "'some:string:with:colons'"],
'bad_lines': ["'foo':bar", "'foo':1"]},
{'pattern': r"^\s+#\w",
'strip': '\n',
'exclude': set(['tools/droplets/create.py']),
'description': 'Missing whitespace after "#"',
'good_lines': ['a = b # some operation', '1+2 # 3 is the result'],
'bad_lines': [' #some operation', ' #not valid!!!']},
{'pattern': "assertEquals[(]",
'description': 'Use assertEqual, not assertEquals (which is deprecated).',
'good_lines': ['assertEqual(1, 2)'],
'bad_lines': ['assertEquals(1, 2)']},
{'pattern': "== None",
'description': 'Use `is None` to check whether something is None',
'good_lines': ['if foo is None'],
'bad_lines': ['foo == None']},
{'pattern': "type:[(]",
'description': 'Missing whitespace after ":" in type annotation',
'good_lines': ['# type: (Any, Any)', 'colon:separated:string:containing:type:as:keyword'],
'bad_lines': ['# type:(Any, Any)']},
{'pattern': "type: ignore$",
'exclude': set(['tools/tests',
'zerver/lib/test_runner.py',
'zerver/tests']),
'description': '"type: ignore" should always end with "# type: ignore # explanation for why"',
'good_lines': ['foo = bar # type: ignore # explanation'],
'bad_lines': ['foo = bar # type: ignore']},
{'pattern': "# type [(]",
'description': 'Missing : after type in type annotation',
'good_lines': ['foo = 42 # type: int', '# type: (str, int) -> None'],
'bad_lines': ['# type (str, int) -> None']},
{'pattern': "#type",
'description': 'Missing whitespace after "#" in type annotation',
'good_lines': ['foo = 42 # type: int'],
'bad_lines': ['foo = 42 #type: int']},
{'pattern': r'\b(if|else|while)[(]',
'description': 'Put a space between statements like if, else, etc. and (.',
'good_lines': ['if (1 == 2):', 'while (foo == bar):'],
'bad_lines': ['if(1 == 2):', 'while(foo == bar):']},
{'pattern': ", [)]",
'description': 'Unnecessary whitespace between "," and ")"',
'good_lines': ['foo = (1, 2, 3,)', 'foo(bar, 42)'],
'bad_lines': ['foo = (1, 2, 3, )']},
{'pattern': "% [(]",
'description': 'Unnecessary whitespace between "%" and "("',
'good_lines': ['"foo %s bar" % ("baz",)'],
'bad_lines': ['"foo %s bar" % ("baz",)']},
# This next check could have false positives, but it seems pretty
# rare; if we find any, they can be added to the exclude list for
# this rule.
{'pattern': r"""^(?:[^'"#\\]|{}|{})*(?:{}|{})\s*%\s*(?![\s({{\\]|dict\(|tuple\()(?:[^,{}]|{})+(?:$|[,#\\]|{})""".format(
PYSQ, PYDQ, PYSQ, PYDQ, PYDELIMS, PYGROUP, PYRIGHT),
'description': 'Used % formatting without a tuple',
'good_lines': ['"foo %s bar" % ("baz",)'],
'bad_lines': ['"foo %s bar" % "baz"']},
{'pattern': r"""^(?:[^'"#\\]|{}|{})*(?:{}|{})\s*%\s*\((?:[^,{}]|{})*\)""".format(
PYSQ, PYDQ, PYSQ, PYDQ, PYDELIMS, PYGROUP),
'description': 'Used % formatting with parentheses that do not form a tuple',
'good_lines': ['"foo %s bar" % ("baz",)"'],
'bad_lines': ['"foo %s bar" % ("baz")']},
{'pattern': 'sudo',
'include_only': set(['scripts/']),
'exclude': set(['scripts/lib/setup_venv.py']),
'exclude_line': set([
('scripts/lib/zulip_tools.py', 'sudo_args = kwargs.pop(\'sudo_args\', [])'),
('scripts/lib/zulip_tools.py', 'args = [\'sudo\'] + sudo_args + [\'--\'] + args'),
]),
'description': 'Most scripts are intended to run on systems without sudo.',
'good_lines': ['subprocess.check_call(["ls"])'],
'bad_lines': ['subprocess.check_call(["sudo", "ls"])']},
{'pattern': '^from typing import',
'strip': '\n',
'include_only': set([
'scripts/',
'puppet/',
'tools/zulint/',
]),
'exclude': set([
# Not important, but should fix
'scripts/lib/process-mobile-i18n',
# Uses setup_path_on_import before importing.
'puppet/zulip/files/nagios_plugins/zulip_app_frontend/check_send_receive_time',
]),
'description': 'For scripts run as part of installer, cannot rely on typing existing; use `if False` workaround.',
'good_lines': [' from typing import List'],
'bad_lines': ['from typing import List']},
{'pattern': 'django.utils.translation',
'include_only': set(['test/', 'zerver/views/development/']),
'description': 'Test strings should not be tagged for translation',
'good_lines': [''],
'bad_lines': ['django.utils.translation']},
{'pattern': 'userid',
'description': 'We prefer user_id over userid.',
'good_lines': ['id = alice.user_id'],
'bad_lines': ['id = alice.userid']},
{'pattern': r'json_success\({}\)',
'description': 'Use json_success() to return nothing',
'good_lines': ['return json_success()'],
'bad_lines': ['return json_success({})']},
{'pattern': r'\Wjson_error\(_\(?\w+\)',
'exclude': set(['zerver/tests', 'zerver/views/development/']),
'description': 'Argument to json_error should be a literal string enclosed by _()',
'good_lines': ['return json_error(_("string"))'],
'bad_lines': ['return json_error(_variable)', 'return json_error(_(variable))']},
{'pattern': r'''\Wjson_error\(['"].+[),]$''',
'exclude': set(['zerver/tests']),
'description': 'Argument to json_error should a literal string enclosed by _()'},
# To avoid JsonableError(_variable) and JsonableError(_(variable))
{'pattern': r'\WJsonableError\(_\(?\w.+\)',
'exclude': set(['zerver/tests', 'zerver/views/development/']),
'description': 'Argument to JsonableError should be a literal string enclosed by _()'},
{'pattern': r'''\WJsonableError\(["'].+\)''',
'exclude': set(['zerver/tests', 'zerver/views/development/']),
'description': 'Argument to JsonableError should be a literal string enclosed by _()'},
{'pattern': r"""\b_\((?:\s|{}|{})*[^\s'")]""".format(PYSQ, PYDQ),
'description': 'Called _() on a computed string',
'exclude_line': set([
('zerver/lib/i18n.py', 'result = _(string)'),
]),
'good_lines': ["return json_error(_('No presence data for %s') % (target.email,))"],
'bad_lines': ["return json_error(_('No presence data for %s' % (target.email,)))"]},
{'pattern': r'''([a-zA-Z0-9_]+)=REQ\(['"]\1['"]''',
'description': 'REQ\'s first argument already defaults to parameter name'},
{'pattern': r'self\.client\.(get|post|patch|put|delete)',
'description': \
'''Do not call self.client directly for put/patch/post/get.
See WRAPPER_COMMENT in test_helpers.py for details.
'''},
# Directly fetching Message objects in e.g. views code is often a security bug.
{'pattern': '[^r]Message.objects.get',
'exclude': set(["zerver/tests",
"zerver/lib/onboarding.py",
"zilencer/management/commands/add_mock_conversation.py",
"zerver/worker/queue_processors.py",
"zerver/management/commands/export.py",
"zerver/lib/export.py"]),
'description': 'Please use access_message() to fetch Message objects',
},
{'pattern': 'Stream.objects.get',
'include_only': set(["zerver/views/"]),
'description': 'Please use access_stream_by_*() to fetch Stream objects',
},
{'pattern': 'get_stream[(]',
'include_only': set(["zerver/views/", "zerver/lib/actions.py"]),
'exclude_line': set([
# This one in check_message is kinda terrible, since it's
# how most instances are written, but better to exclude something than nothing
('zerver/lib/actions.py', 'stream = get_stream(stream_name, realm)'),
('zerver/lib/actions.py', 'get_stream(admin_realm_signup_notifications_stream, admin_realm)'),
# Here we need get_stream to access streams you've since unsubscribed from.
('zerver/views/messages.py', 'stream = get_stream(operand, self.user_profile.realm)'),
# Use stream_id to exclude mutes.
('zerver/views/messages.py', 'stream_id = get_stream(stream_name, user_profile.realm).id'),
]),
'description': 'Please use access_stream_by_*() to fetch Stream objects',
},
{'pattern': 'Stream.objects.filter',
'include_only': set(["zerver/views/"]),
'description': 'Please use access_stream_by_*() to fetch Stream objects',
},
{'pattern': '^from (zerver|analytics|confirmation)',
'include_only': set(["/migrations/"]),
'exclude': set([
'zerver/migrations/0032_verify_all_medium_avatar_images.py',
'zerver/migrations/0060_move_avatars_to_be_uid_based.py',
'zerver/migrations/0104_fix_unreads.py',
'zerver/migrations/0206_stream_rendered_description.py',
'pgroonga/migrations/0002_html_escape_subject.py',
]),
'description': "Don't import models or other code in migrations; see docs/subsystems/schema-migrations.md",
},
{'pattern': 'datetime[.](now|utcnow)',
'include_only': set(["zerver/", "analytics/"]),
'description': "Don't use datetime in backend code.\n"
"See https://zulip.readthedocs.io/en/latest/contributing/code-style.html#naive-datetime-objects",
},
{'pattern': r'render_to_response\(',
'description': "Use render() instead of render_to_response().",
},
{'pattern': 'from os.path',
'description': "Don't use from when importing from the standard library",
},
{'pattern': 'import os.path',
'description': "Use import os instead of import os.path",
},
{'pattern': r'(logging|logger)\.warn\W',
'description': "Logger.warn is a deprecated alias for Logger.warning; Use 'warning' instead of 'warn'.",
'good_lines': ["logging.warning('I am a warning.')", "logger.warning('warning')"],
'bad_lines': ["logging.warn('I am a warning.')", "logger.warn('warning')"]},
{'pattern': r'\.pk',
'exclude_pattern': '[.]_meta[.]pk',
'description': "Use `id` instead of `pk`.",
'good_lines': ['if my_django_model.id == 42', 'self.user_profile._meta.pk'],
'bad_lines': ['if my_django_model.pk == 42']},
{'pattern': r'^[ ]*# type: \(',
'exclude': set([
# These directories, especially scripts/ and puppet/,
# have tools that need to run before a Zulip environment
# is provisioned; in some of those, the `typing` module
# might not be available yet, so care is required.
'scripts/',
'tools/',
'puppet/',
# Zerver files that we should just clean.
'zerver/tests',
'zerver/lib/api_test_helpers.py',
'zerver/lib/request.py',
'zerver/views/streams.py',
# thumbor is (currently) python2 only
'zthumbor/',
]),
'description': 'Comment-style function type annotation. Use Python3 style annotations instead.',
},
{'pattern': r' = models[.].*null=True.*\) # type: (?!Optional)',
'include_only': {"zerver/models.py"},
'description': 'Model variable with null=true not annotated as Optional.',
'good_lines': ['desc = models.TextField(null=True) # type: Optional[Text]',
'stream = models.ForeignKey(Stream, null=True, on_delete=CASCADE) # type: Optional[Stream]',
'desc = models.TextField() # type: Text',
'stream = models.ForeignKey(Stream, on_delete=CASCADE) # type: Stream'],
'bad_lines': ['desc = models.CharField(null=True) # type: Text',
'stream = models.ForeignKey(Stream, null=True, on_delete=CASCADE) # type: Stream'],
},
{'pattern': r' = models[.](?!NullBoolean).*\) # type: Optional', # Optional tag, except NullBoolean(Field)
'exclude_pattern': 'null=True',
'include_only': {"zerver/models.py"},
'description': 'Model variable annotated with Optional but variable does not have null=true.',
'good_lines': ['desc = models.TextField(null=True) # type: Optional[Text]',
'stream = models.ForeignKey(Stream, null=True, on_delete=CASCADE) # type: Optional[Stream]',
'desc = models.TextField() # type: Text',
'stream = models.ForeignKey(Stream, on_delete=CASCADE) # type: Stream'],
'bad_lines': ['desc = models.TextField() # type: Optional[Text]',
'stream = models.ForeignKey(Stream, on_delete=CASCADE) # type: Optional[Stream]'],
},
{'pattern': r'[\s([]Text([^\s\w]|$)',
'exclude': set([
# We are likely to want to keep these dirs Python 2+3 compatible,
# since the plan includes extracting them to a separate project eventually.
'tools/lib',
'tools/zulint',
# TODO: Update our migrations from Text->str.
'zerver/migrations/',
# thumbor is (currently) python2 only
'zthumbor/',
]),
'description': "Now that we're a Python 3 only codebase, we don't need to use typing.Text. Please use str instead.",
},
{'pattern': 'exit[(]1[)]',
'include_only': set(["/management/commands/"]),
'description': 'Raise CommandError to exit with failure in management commands',
},
]) + whitespace_rules + comma_whitespace_rule,
max_length=110,
shebang_rules=shebang_rules,
)
bash_rules = RuleList(
langs=['bash'],
rules=cast(Rule, [
{'pattern': '#!.*sh [-xe]',
'description': 'Fix shebang line with proper call to /usr/bin/env for Bash path, change -x|-e switches'
' to set -x|set -e'},
{'pattern': 'sudo',
'description': 'Most scripts are intended to work on systems without sudo',
'include_only': set(['scripts/']),
'exclude': set([
'scripts/lib/install',
'scripts/setup/configure-rabbitmq'
]), },
]) + whitespace_rules[0:1],
shebang_rules=shebang_rules,
)
css_rules = RuleList(
langs=['css', 'scss'],
rules=cast(Rule, [
{'pattern': r'calc\([^+]+\+[^+]+\)',
'description': "Avoid using calc with '+' operator. See #8403 : in CSS.",
'good_lines': ["width: calc(20% - -14px);"],
'bad_lines': ["width: calc(20% + 14px);"]},
{'pattern': r'^[^:]*:\S[^:]*;$',
'description': "Missing whitespace after : in CSS",
'good_lines': ["background-color: white;", "text-size: 16px;"],
'bad_lines': ["background-color:white;", "text-size:16px;"]},
{'pattern': '[a-z]{',
'description': "Missing whitespace before '{' in CSS.",
'good_lines': ["input {", "body {"],
'bad_lines': ["input{", "body{"]},
{'pattern': 'https://',
'description': "Zulip CSS should have no dependencies on external resources",
'good_lines': ['background: url(/static/images/landing-page/pycon.jpg);'],
'bad_lines': ['background: url(https://example.com/image.png);']},
{'pattern': '^[ ][ ][a-zA-Z0-9]',
'description': "Incorrect 2-space indentation in CSS",
'strip': '\n',
'good_lines': [" color: white;", "color: white;"],
'bad_lines': [" color: white;"]},
{'pattern': r'{\w',
'description': "Missing whitespace after '{' in CSS (should be newline).",
'good_lines': ["{\n"],
'bad_lines': ["{color: LightGoldenRodYellow;"]},
{'pattern': ' thin[ ;]',
'description': "thin CSS attribute is under-specified, please use 1px.",
'good_lines': ["border-width: 1px;"],
'bad_lines': ["border-width: thin;", "border-width: thin solid black;"]},
{'pattern': ' medium[ ;]',
'description': "medium CSS attribute is under-specified, please use pixels.",
'good_lines': ["border-width: 3px;"],
'bad_lines': ["border-width: medium;", "border: medium solid black;"]},
{'pattern': ' thick[ ;]',
'description': "thick CSS attribute is under-specified, please use pixels.",
'good_lines': ["border-width: 5px;"],
'bad_lines': ["border-width: thick;", "border: thick solid black;"]},
{'pattern': r'rgba?\(',
'description': 'Use of rgb(a) format is banned, Please use hsl(a) instead',
'good_lines': ['hsl(0, 0%, 0%)', 'hsla(0, 0%, 100%, 0.1)'],
'bad_lines': ['rgb(0, 0, 0)', 'rgba(255, 255, 255, 0.1)']},
]) + whitespace_rules + comma_whitespace_rule
)
prose_style_rules = cast(Rule, [
{'pattern': r'[^\/\#\-"]([jJ]avascript)', # exclude usage in hrefs/divs
'exclude': set(["docs/documentation/api.md"]),
'description': "javascript should be spelled JavaScript"},
{'pattern': r'''[^\/\-\."'\_\=\>]([gG]ithub)[^\.\-\_"\<]''', # exclude usage in hrefs/divs
'description': "github should be spelled GitHub"},
{'pattern': '[oO]rganisation', # exclude usage in hrefs/divs
'description': "Organization is spelled with a z",
'exclude_line': [('docs/translating/french.md', '* organization - **organisation**')]},
{'pattern': '!!! warning',
'description': "!!! warning is invalid; it's spelled '!!! warn'"},
{'pattern': 'Terms of service',
'description': "The S in Terms of Service is capitalized"},
{'pattern': '[^-_]botserver(?!rc)|bot server',
'description': "Use Botserver instead of botserver or bot server."},
]) + comma_whitespace_rule
html_rules = whitespace_rules + prose_style_rules + cast(Rule, [
{'pattern': 'subject|SUBJECT',
'exclude': set(['templates/zerver/email.html']),
'exclude_pattern': 'email subject',
'description': 'avoid subject in templates',
'good_lines': ['topic_name'],
'bad_lines': ['subject="foo"', ' MAX_SUBJECT_LEN']},
{'pattern': r'placeholder="[^{#](?:(?!\.com).)+$',
'description': "`placeholder` value should be translatable.",
'exclude_line': [('templates/zerver/register.html', 'placeholder="acme"'),
('templates/zerver/register.html', 'placeholder="Acme or Aκμή"')],
'exclude': set(["templates/analytics/support.html"]),
'good_lines': ['<input class="stream-list-filter" type="text" placeholder="{{ _(\'Search streams\') }}" />'],
'bad_lines': ['<input placeholder="foo">']},
{'pattern': "placeholder='[^{]",
'description': "`placeholder` value should be translatable.",
'good_lines': ['<input class="stream-list-filter" type="text" placeholder="{{ _(\'Search streams\') }}" />'],
'bad_lines': ["<input placeholder='foo'>"]},
{'pattern': "aria-label='[^{]",
'description': "`aria-label` value should be translatable.",
'good_lines': ['<button type="button" class="close close-alert-word-status" aria-label="{{t \'Close\' }}">'],
'bad_lines': ["<button aria-label='foo'></button>"]},
{'pattern': 'aria-label="[^{]',
'description': "`aria-label` value should be translatable.",
'good_lines': ['<button type="button" class="close close-alert-word-status" aria-label="{{t \'Close\' }}">'],
'bad_lines': ['<button aria-label="foo"></button>']},
{'pattern': 'script src="http',
'description': "Don't directly load dependencies from CDNs. See docs/subsystems/front-end-build-process.md",
'exclude': set(["templates/corporate/billing.html", "templates/zerver/hello.html",
"templates/corporate/upgrade.html"]),
'good_lines': ["{{ render_bundle('landing-page') }}"],
'bad_lines': ['<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>']},
{'pattern': "title='[^{]",
'description': "`title` value should be translatable.",
'good_lines': ['<link rel="author" title="{{ _(\'About these documents\') }}" />'],
'bad_lines': ["<p title='foo'></p>"]},
{'pattern': r'title="[^{\:]',
'exclude_line': set([
('templates/zerver/app/markdown_help.html',
'<td class="rendered_markdown"><img alt=":heart:" class="emoji" src="/static/generated/emoji/images/emoji/heart.png" title=":heart:" /></td>')
]),
'exclude': set(["templates/zerver/emails", "templates/analytics/support.html"]),
'description': "`title` value should be translatable."},
{'pattern': r'''\Walt=["'][^{"']''',
'description': "alt argument should be enclosed by _() or it should be an empty string.",
'exclude': set(['static/templates/settings/display_settings.hbs',
'templates/zerver/app/keyboard_shortcuts.html',
'templates/zerver/app/markdown_help.html']),
'good_lines': ['<img src="{{source_url}}" alt="{{ _(name) }}" />', '<img alg="" />'],
'bad_lines': ['<img alt="Foo Image" />']},
{'pattern': r'''\Walt=["']{{ ?["']''',
'description': "alt argument should be enclosed by _().",
'good_lines': ['<img src="{{source_url}}" alt="{{ _(name) }}" />'],
'bad_lines': ['<img alt="{{ " />']},
{'pattern': r'\bon\w+ ?=',
'description': "Don't use inline event handlers (onclick=, etc. attributes) in HTML. Instead,"
"attach a jQuery event handler ($('#foo').on('click', function () {...})) when "
"the DOM is ready (inside a $(function () {...}) block).",
'exclude': set(['templates/zerver/dev_login.html', 'templates/corporate/upgrade.html']),
'good_lines': ["($('#foo').on('click', function () {}"],
'bad_lines': ["<button id='foo' onclick='myFunction()'>Foo</button>", "<input onchange='myFunction()'>"]},
{'pattern': 'style ?=',
'description': "Avoid using the `style=` attribute; we prefer styling in CSS files",
'exclude_pattern': r'.*style ?=["' + "'" + '](display: ?none|background: {{|color: {{|background-color: {{).*',
'exclude': set([
# KaTeX output uses style attribute
'templates/zerver/app/markdown_help.html',
# 5xx page doesn't have external CSS
'static/html/5xx.html',
# Group PMs color is dynamically calculated
'static/templates/group_pms.hbs',
# exclude_pattern above handles color, but have other issues:
'static/templates/draft.hbs',
'static/templates/subscription.hbs',
'static/templates/single_message.hbs',
# Old-style email templates need to use inline style
# attributes; it should be possible to clean these up
# when we convert these templates to use premailer.
'templates/zerver/emails/email_base_messages.html',
# Email log templates; should clean up.
'templates/zerver/email.html',
'templates/zerver/email_log.html',
# Probably just needs to be changed to display: none so the exclude works
'templates/zerver/app/navbar.html',
# Needs the width cleaned up; display: none is fine
'static/templates/settings/account_settings.hbs',
# background image property is dynamically generated
'static/templates/user_profile_modal.hbs',
'static/templates/sidebar_private_message_list.hbs',
# Inline styling for an svg; could be moved to CSS files?
'templates/zerver/landing_nav.html',
'templates/zerver/billing_nav.html',
'templates/zerver/app/home.html',
'templates/zerver/features.html',
'templates/zerver/portico-header.html',
'templates/corporate/billing.html',
'templates/corporate/upgrade.html',
# Miscellaneous violations to be cleaned up
'static/templates/user_info_popover_title.hbs',
'static/templates/subscription_invites_warning_modal.hbs',
'templates/zerver/reset_confirm.html',
'templates/zerver/config_error.html',
'templates/zerver/dev_env_email_access_details.html',
'templates/zerver/confirm_continue_registration.html',
'templates/zerver/register.html',
'templates/zerver/accounts_send_confirm.html',
'templates/zerver/integrations/index.html',
'templates/zerver/documentation_main.html',
'templates/analytics/realm_summary_table.html',
'templates/corporate/zephyr.html',
'templates/corporate/zephyr-mirror.html',
]),
'good_lines': ['#my-style {color: blue;}', 'style="display: none"', "style='display: none"],
'bad_lines': ['<p style="color: blue;">Foo</p>', 'style = "color: blue;"']},
])
handlebars_rules = RuleList(
langs=['hbs'],
rules=html_rules + cast(Rule, [
{'pattern': "[<]script",
'description': "Do not use inline <script> tags here; put JavaScript in static/js instead."},
{'pattern': '{{ t ("|\')',
'description': 'There should be no spaces before the "t" in a translation tag.'},
{'pattern': r"{{t '.*' }}[\.\?!]",
'description': "Period should be part of the translatable string."},
{'pattern': r'{{t ".*" }}[\.\?!]',
'description': "Period should be part of the translatable string."},
{'pattern': r"{{/tr}}[\.\?!]",
'description': "Period should be part of the translatable string."},
{'pattern': '{{t ("|\') ',
'description': 'Translatable strings should not have leading spaces.'},
{'pattern': "{{t '[^']+ ' }}",
'description': 'Translatable strings should not have trailing spaces.'},
{'pattern': '{{t "[^"]+ " }}',
'description': 'Translatable strings should not have trailing spaces.'},
]),
)
jinja2_rules = RuleList(
langs=['html'],
rules=html_rules + cast(Rule, [
{'pattern': r"{% endtrans %}[\.\?!]",
'description': "Period should be part of the translatable string."},
{'pattern': r"{{ _(.+) }}[\.\?!]",
'description': "Period should be part of the translatable string."},
]),
)
json_rules = RuleList(
langs=['json'],
rules=cast(Rule, [
# Here, we don't use `whitespace_rules`, because the tab-based
# whitespace rule flags a lot of third-party JSON fixtures
# under zerver/webhooks that we want preserved verbatim. So
# we just include the trailing whitespace rule and a modified
# version of the tab-based whitespace rule (we can't just use
# exclude in whitespace_rules, since we only want to ignore
# JSON files with tab-based whitespace, not webhook code).
trailing_whitespace_rule,
{'pattern': '\t',
'strip': '\n',
'exclude': set(['zerver/webhooks/']),
'description': 'Fix tab-based whitespace'},
{'pattern': r'":["\[\{]',
'exclude': set(['zerver/webhooks/', 'zerver/tests/fixtures/']),
'description': 'Require space after : in JSON'},
])
)
markdown_docs_length_exclude = {
# Has some example Vagrant output that's very long
"docs/development/setup-vagrant.md",
# Have wide output in code blocks
"docs/subsystems/logging.md",
"docs/subsystems/migration-renumbering.md",
# Have curl commands with JSON that would be messy to wrap
"zerver/webhooks/helloworld/doc.md",
"zerver/webhooks/trello/doc.md",
# Has a very long configuration line
"templates/zerver/integrations/perforce.md",
# Has some example code that could perhaps be wrapped
"templates/zerver/api/incoming-webhooks-walkthrough.md",
# This macro has a long indented URL
"templates/zerver/help/include/git-webhook-url-with-branches-indented.md",
# These two are the same file and have some too-long lines for GitHub badges
"README.md",
"docs/overview/readme.md",
}
markdown_rules = RuleList(
langs=['md'],
rules=markdown_whitespace_rules + prose_style_rules + cast(Rule, [
{'pattern': r'\[(?P<url>[^\]]+)\]\((?P=url)\)',
'description': 'Linkified markdown URLs should use cleaner <http://example.com> syntax.'},
{'pattern': 'https://zulip.readthedocs.io/en/latest/[a-zA-Z0-9]',
'exclude': ['docs/overview/contributing.md', 'docs/overview/readme.md', 'docs/README.md'],
'exclude_line': set([
('docs/testing/mypy.md',
'# See https://zulip.readthedocs.io/en/latest/testing/mypy.html#mypy-in-production-scripts')
]),
'include_only': set(['docs/']),
'description': "Use relative links (../foo/bar.html) to other documents in docs/",
},
{'pattern': "su zulip -c [^']",
'include_only': set(['docs/']),
'description': "Always quote arguments using `su zulip -c '` to avoid confusion about how su works.",
},
{'pattern': r'\][(][^#h]',
'include_only': set(['README.md', 'CONTRIBUTING.md']),
'description': "Use absolute links from docs served by GitHub",
},
]),
max_length=120,
length_exclude=markdown_docs_length_exclude,
exclude_files_in='templates/zerver/help/'
)
help_markdown_rules = RuleList(
langs=['md'],
rules=markdown_rules.rules + cast(Rule, [
{'pattern': '[a-z][.][A-Z]',
'description': "Likely missing space after end of sentence",
'include_only': set(['templates/zerver/help/']),
},
{'pattern': r'\b[rR]ealm[s]?\b',
'include_only': set(['templates/zerver/help/']),
'good_lines': ['Organization', 'deactivate_realm', 'realm_filter'],
'bad_lines': ['Users are in a realm', 'Realm is the best model'],
'description': "Realms are referred to as Organizations in user-facing docs."},
]),
length_exclude=markdown_docs_length_exclude,
)
txt_rules = RuleList(
langs=['txt', 'text', 'yaml', 'rst'],
rules=whitespace_rules,
)
non_py_rules = [
handlebars_rules,
jinja2_rules,
css_rules,
js_rules,
json_rules,
markdown_rules,
help_markdown_rules,
bash_rules,
txt_rules,
]