lint: Use zulint as wrapper for running different linters.

This commit is contained in:
Aman 2019-08-02 09:40:06 +05:30 committed by Tim Abbott
parent 264632230b
commit 7f39201e79
3 changed files with 125 additions and 215 deletions

View file

@ -7,3 +7,4 @@ pytest
-e ./zulip
-e ./zulip_bots
-e ./zulip_botserver
-e git+https://github.com/zulip/zulint@aaed679f1ad38b230090eadd3870b7682500f60c#egg=zulint==1.0.0

View file

@ -1,104 +1,10 @@
from __future__ import print_function
from __future__ import absolute_import
import os
import re
import traceback
from typing import cast, Any, Dict, List, Tuple
from zulint.custom_rules import RuleList
from server_lib.printer import print_err, colors
from typing import cast, Any, Callable, Dict, List, Optional, Tuple
def build_custom_checkers(by_lang):
# type: (Dict[str, List[str]]) -> Tuple[Callable[[], bool], Callable[[], bool]]
RuleList = List[Dict[str, Any]]
def custom_check_file(fn, identifier, rules, skip_rules=None, max_length=None):
# type: (str, str, RuleList, Optional[Any], Optional[int]) -> bool
failed = False
color = next(colors)
line_tups = []
for i, line in enumerate(open(fn)):
line_newline_stripped = line.strip('\n')
line_fully_stripped = line_newline_stripped.strip()
skip = False
for rule in skip_rules or []:
if re.match(rule, line):
skip = True
if line_fully_stripped.endswith(' # nolint'):
continue
if skip:
continue
tup = (i, line, line_newline_stripped, line_fully_stripped)
line_tups.append(tup)
rules_to_apply = []
fn_dirname = os.path.dirname(fn)
for rule in rules:
exclude_list = rule.get('exclude', set())
if fn in exclude_list or fn_dirname in exclude_list:
continue
if rule.get("include_only"):
found = False
for item in rule.get("include_only", set()):
if item in fn:
found = True
if not found:
continue
rules_to_apply.append(rule)
for rule in rules_to_apply:
exclude_lines = {
line for
(exclude_fn, line) in rule.get('exclude_line', set())
if exclude_fn == fn
}
pattern = rule['pattern']
for (i, line, line_newline_stripped, line_fully_stripped) in line_tups:
if line_fully_stripped in exclude_lines:
exclude_lines.remove(line_fully_stripped)
continue
try:
line_to_check = line_fully_stripped
if rule.get('strip') is not None:
if rule['strip'] == '\n':
line_to_check = line_newline_stripped
else:
raise Exception("Invalid strip rule")
if re.search(pattern, line_to_check):
print_err(identifier, color, '{} at {} line {}:'.format(
rule['description'], fn, i+1))
print_err(identifier, color, line)
failed = True
except Exception:
print("Exception with %s at %s line %s" % (rule['pattern'], fn, i+1))
traceback.print_exc()
if exclude_lines:
print('Please remove exclusions for file %s: %s' % (fn, exclude_lines))
lastLine = None
for (i, line, line_newline_stripped, line_fully_stripped) in line_tups:
if isinstance(line, bytes):
line_length = len(line.decode("utf-8"))
else:
line_length = len(line)
if (max_length is not None and line_length > max_length and
'# type' not in line and 'test' not in fn and 'example' not in fn and
not re.match("\[[ A-Za-z0-9_:,&()-]*\]: http.*", line) and
not re.match("`\{\{ external_api_uri_subdomain \}\}[^`]+`", line) and
"#ignorelongline" not in line and 'migrations' not in fn):
print("Line too long (%s) at %s line %s: %s" % (len(line), fn, i+1, line_newline_stripped))
failed = True
lastLine = line
if lastLine and ('\n' not in lastLine):
print("No newline at the end of file. Fix with `sed -i '$a\\' %s`" % (fn,))
failed = True
return failed
Rule = List[Dict[str, Any]]
whitespace_rules = [
# This linter should be first since bash_rules depends on it.
@ -108,7 +14,8 @@ def build_custom_checkers(by_lang):
{'pattern': '\t',
'strip': '\n',
'description': 'Fix tab-based whitespace'},
] # type: RuleList
] # type: Rule
markdown_whitespace_rules = list([rule for rule in whitespace_rules if rule['pattern'] != '\s+$']) + [
# 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
@ -119,8 +26,11 @@ def build_custom_checkers(by_lang):
{'pattern': '^#+[A-Za-z0-9]',
'strip': '\n',
'description': 'Missing space after # in heading'},
] # type: RuleList
python_rules = cast(RuleList, [
] # type: Rule
python_rules = RuleList(
langs=['py'],
rules=cast(Rule, [
{'pattern': '".*"%\([a-z_].*\)?$',
'description': 'Missing space around "%"'},
{'pattern': "'.*'%\([a-z_].*\)?$",
@ -186,12 +96,32 @@ def build_custom_checkers(by_lang):
'bad_lines': ['class TestSomeBot(DefaultTests, BotTestCase):'],
'good_lines': ['class TestSomeBot(BotTestCase, DefaultTests):'],
'description': 'Bot test cases should inherit from BotTestCase before DefaultTests.'},
]) + whitespace_rules
bash_rules = [
]) + whitespace_rules,
max_length=140,
)
bash_rules = RuleList(
langs=['sh'],
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'},
] + whitespace_rules[0:1] # type: RuleList
]) + 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': '[^\/\#\-\"]([jJ]avascript)', # exclude usage in hrefs/divs
'description': "javascript should be spelled JavaScript"},
@ -203,67 +133,31 @@ def build_custom_checkers(by_lang):
'description': "!!! warning is invalid; it's spelled '!!! warn'"},
{'pattern': '[^-_]botserver(?!rc)|bot server',
'description': "Use Botserver instead of botserver or Botserver."},
] # type: RuleList
json_rules = [] # type: RuleList # fix newlines at ends of files
# It is okay that json_rules is empty, because the empty list
# ensures we'll still check JSON files for whitespace.
markdown_rules = markdown_whitespace_rules + prose_style_rules + [
{'pattern': '\[(?P<url>[^\]]+)\]\((?P=url)\)',
'description': 'Linkified markdown URLs should use cleaner <http://example.com> syntax.'}
]
help_markdown_rules = markdown_rules + [
{'pattern': '[a-z][.][A-Z]',
'description': "Likely missing space after end of sentence"},
{'pattern': '[rR]ealm',
'description': "Realms are referred to as Organizations in user-facing docs."},
]
txt_rules = whitespace_rules
def check_custom_checks_py():
# type: () -> bool
failed = False
for fn in by_lang['py']:
if 'custom_check.py' in fn:
continue
if custom_check_file(fn, 'py', python_rules, max_length=140):
failed = True
return failed
def check_custom_checks_nonpy():
# type: () -> bool
failed = False
for fn in by_lang['sh']:
if custom_check_file(fn, 'sh', bash_rules):
failed = True
for fn in by_lang['json']:
if custom_check_file(fn, 'json', json_rules):
failed = True
] # type: Rule
markdown_docs_length_exclude = {
"zulip_bots/zulip_bots/bots/converter/doc.md",
"tools/server_lib/README.md",
}
for fn in by_lang['md']:
max_length = None
if fn not in markdown_docs_length_exclude:
max_length = 120
rules = markdown_rules
if fn.startswith("templates/zerver/help"):
rules = help_markdown_rules
if custom_check_file(fn, 'md', rules, max_length=max_length):
failed = True
for fn in by_lang['txt'] + by_lang['text']:
if custom_check_file(fn, 'txt', txt_rules):
failed = True
markdown_rules = RuleList(
langs=['md'],
rules=markdown_whitespace_rules + prose_style_rules + cast(Rule, [
{'pattern': '\[(?P<url>[^\]]+)\]\((?P=url)\)',
'description': 'Linkified markdown URLs should use cleaner <http://example.com> syntax.'}
]),
max_length=120,
length_exclude=markdown_docs_length_exclude,
)
for fn in by_lang['yaml']:
if custom_check_file(fn, 'yaml', txt_rules):
failed = True
txt_rules = RuleList(
langs=['txt'],
rules=whitespace_rules,
)
return failed
return (check_custom_checks_py, check_custom_checks_nonpy)
non_py_rules = [
json_rules,
markdown_rules,
bash_rules,
txt_rules,
]

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@ -1,39 +1,54 @@
#! /usr/bin/env python
from pep8 import check_pep8
from custom_check import build_custom_checkers
from server_lib import lister
from __future__ import print_function
from __future__ import absolute_import
import argparse
import sys
import optparse
from typing import cast, Callable, Dict, Iterator, List
from zulint.command import add_default_linter_arguments, LinterConfig
from custom_check import python_rules, non_py_rules
from pep8 import check_pep8
EXCLUDED_FILES = [
# This is an external file that doesn't comply with our codestyle
'zulip/integrations/perforce/git_p4.py',
]
def lint_all(args, options):
by_lang = cast(Dict[str, List[str]],
lister.list_files(args, modified_only=options.modified,
ftypes=['py', 'sh', 'js', 'pp', 'css', 'handlebars',
'html', 'json', 'md', 'txt', 'text', 'yaml'],
use_shebang=True, group_by_ftype=True, exclude=EXCLUDED_FILES))
check_custom_checks_py, check_custom_checks_nonpy = build_custom_checkers(by_lang)
return any([check_pep8(by_lang['py']),
check_custom_checks_py(),
check_custom_checks_nonpy()])
def run():
# type: () -> None
parser = optparse.OptionParser()
parser.add_option('--modified', '-m',
action='store_true',
help='Only check modified files')
(options, args) = parser.parse_args()
failed = lint_all(args, options)
sys.exit(1 if failed else 0)
parser = argparse.ArgumentParser()
add_default_linter_arguments(parser)
args = parser.parse_args()
linter_config = LinterConfig(args)
by_lang = linter_config.list_files(file_types=['py', 'sh', 'json', 'md', 'txt'],
exclude=EXCLUDED_FILES)
@linter_config.lint
def custom_py():
# type: () -> int
"""Runs custom checks for python files (config: tools/linter_lib/custom_check.py)"""
failed = python_rules.check(by_lang, verbose=args.verbose)
return 1 if failed else 0
@linter_config.lint
def custom_nonpy():
# type: () -> int
"""Runs custom checks for non-python files (config: tools/linter_lib/custom_check.py)"""
failed = False
for rule in non_py_rules:
failed = failed or rule.check(by_lang, verbose=args.verbose)
return 1 if failed else 0
@linter_config.lint
def pep8():
# type: () -> int
"""Standard Python style linter on 50% of files (config: tools/linter_lib/pep8.py)"""
failed = check_pep8(by_lang['py'])
return 1 if failed else 0
linter_config.do_lint()
if __name__ == '__main__':
run()