python-zulip-api/tools/custom_check.py
Anders Kaseorg d68437d5f5 Rewrite some strings using raw string syntax.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-04-18 15:04:36 -07:00

157 lines
6.4 KiB
Python

from typing import Any, Dict, List, Tuple
from zulint.custom_rules import RuleList
MYPY = False
if MYPY:
from zulint.custom_rules import Rule
whitespace_rules = [
# This linter should be first since bash_rules depends on it.
{'pattern': r'\s+$',
'strip': '\n',
'description': 'Fix trailing whitespace'},
{'pattern': '\t',
'strip': '\n',
'description': 'Fix tab-based whitespace'},
] # type: Rule
markdown_whitespace_rules = list([rule for rule in whitespace_rules if rule['pattern'] != r'\s+$']) + [
# 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': r'^#+[A-Za-z0-9]',
'strip': '\n',
'description': 'Missing space after # in heading'},
] # type: Rule
python_rules = RuleList(
langs=['py'],
rules=[
{'pattern': r'".*"%\([a-z_].*\)?$',
'description': 'Missing space around "%"'},
{'pattern': r"'.*'%\([a-z_].*\)?$",
'description': 'Missing space around "%"'},
# This rule is constructed with + to avoid triggering on itself
{'pattern': r" =" + r'[^ =>~"]',
'description': 'Missing whitespace after "="'},
{'pattern': r'":\w[^"]*$',
'description': 'Missing whitespace after ":"'},
{'pattern': r"':\w[^']*$",
'description': 'Missing whitespace after ":"'},
{'pattern': r"^\s+[#]\w",
'strip': '\n',
'description': 'Missing whitespace after "#"'},
{'pattern': r"assertEquals[(]",
'description': 'Use assertEqual, not assertEquals (which is deprecated).'},
{'pattern': r'self: Any',
'description': 'you can omit Any annotation for self',
'good_lines': ['def foo (self):'],
'bad_lines': ['def foo(self: Any):']},
{'pattern': r"== None",
'description': 'Use `is None` to check whether something is None'},
{'pattern': r"type:[(]",
'description': 'Missing whitespace after ":" in type annotation'},
{'pattern': r"# type [(]",
'description': 'Missing : after type in type annotation'},
{'pattern': r"#type",
'description': 'Missing whitespace after "#" in type annotation'},
{'pattern': r'if[(]',
'description': 'Missing space between if and ('},
{'pattern': r", [)]",
'description': 'Unnecessary whitespace between "," and ")"'},
{'pattern': r"% [(]",
'description': 'Unnecessary whitespace between "%" and "("'},
# 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' % [a-zA-Z0-9_.]*\)?$',
'description': 'Used % comprehension without a tuple'},
{'pattern': r'.*%s.* % \([a-zA-Z0-9_.]*\)$',
'description': 'Used % comprehension without a tuple'},
{'pattern': r'__future__',
'include_only': {'zulip_bots/zulip_bots/bots/'},
'description': 'Bots no longer need __future__ imports.'},
{'pattern': r'#!/usr/bin/env python$',
'include_only': {'zulip_bots/'},
'description': 'Python shebangs must be python3'},
{'pattern': r'(^|\s)open\s*\(',
'description': 'open() should not be used in Zulip\'s bots. Use functions'
' provided by the bots framework to access the filesystem.',
'include_only': {'zulip_bots/zulip_bots/bots/'}},
{'pattern': r'pprint',
'description': 'Used pprint, which is most likely a debugging leftover. For user output, use print().'},
{'pattern': r'\(BotTestCase\)',
'bad_lines': ['class TestSomeBot(BotTestCase):'],
'description': 'Bot test cases should directly inherit from BotTestCase *and* DefaultTests.'},
{'pattern': r'\(DefaultTests, BotTestCase\)',
'bad_lines': ['class TestSomeBot(DefaultTests, BotTestCase):'],
'good_lines': ['class TestSomeBot(BotTestCase, DefaultTests):'],
'description': 'Bot test cases should inherit from BotTestCase before DefaultTests.'},
] + whitespace_rules,
max_length=140,
)
bash_rules = RuleList(
langs=['sh'],
rules=[
{'pattern': r'#!.*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'},
] + whitespace_rules[0:1],
)
json_rules = RuleList(
langs=['json'],
# Here, we don't check tab-based whitespace, 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).
rules= whitespace_rules[0:1],
)
prose_style_rules = [
{'pattern': r'[^\/\#\-"]([jJ]avascript)', # exclude usage in hrefs/divs
'description': "javascript should be spelled JavaScript"},
{'pattern': r'''[^\/\-\."'\_\=\>]([gG]ithub)[^\.\-\_"\<]''', # exclude usage in hrefs/divs
'description': "github should be spelled GitHub"},
{'pattern': r'[oO]rganisation', # exclude usage in hrefs/divs
'description': "Organization is spelled with a z"},
{'pattern': r'!!! warning',
'description': "!!! warning is invalid; it's spelled '!!! warn'"},
{'pattern': r'[^-_]botserver(?!rc)|bot server',
'description': "Use Botserver instead of botserver or Botserver."},
] # type: Rule
markdown_docs_length_exclude = {
"zulip_bots/zulip_bots/bots/converter/doc.md",
}
markdown_rules = RuleList(
langs=['md'],
rules=markdown_whitespace_rules + prose_style_rules + [
{'pattern': r'\[(?P<url>[^\]]+)\]\((?P=url)\)',
'description': 'Linkified markdown URLs should use cleaner <http://example.com> syntax.'}
],
max_length=120,
length_exclude=markdown_docs_length_exclude,
)
txt_rules = RuleList(
langs=['txt'],
rules=whitespace_rules,
)
non_py_rules = [
json_rules,
markdown_rules,
bash_rules,
txt_rules,
]