mirror of
https://github.com/zulip/zulip.git
synced 2025-11-03 21:43:21 +00:00
399 lines
14 KiB
Python
Executable File
399 lines
14 KiB
Python
Executable File
#!/usr/bin/env python
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from __future__ import print_function
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from __future__ import absolute_import
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import os
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import re
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import sys
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import optparse
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import subprocess
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import traceback
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try:
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import lister
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except ImportError as e:
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print("ImportError: {}".format(e))
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print("You need to run the Zulip linters inside a Zulip dev environment.")
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print("If you are using Vagrant, you can `vagrant ssh` to enter the Vagrant guest.")
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sys.exit(1)
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parser = optparse.OptionParser()
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parser.add_option('--full',
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action='store_true',
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help='Check some things we typically ignore')
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parser.add_option('--modified', '-m',
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action='store_true',
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help='Only check modified files')
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parser.add_option('--verbose', '-v',
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action='store_true',
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help='Print verbose timing output')
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(options, args) = parser.parse_args()
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os.chdir(os.path.join(os.path.dirname(__file__), '..'))
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# Exclude some directories and files from lint checking
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exclude = """
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static/third
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frontend_tests/casperjs
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zerver/migrations
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node_modules
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docs/html_unescape.py
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zproject/test_settings.py
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zproject/dev_settings.py
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zproject/settings.py
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tools/jslint/jslint.js
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api/setup.py
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api/integrations/perforce/git_p4.py
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puppet/apt/.forge-release
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puppet/puppet-common/tests/
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puppet/apt/README.md
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static/locale
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""".split()
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by_lang = lister.list_files(args, modified_only=options.modified, use_shebang=True,
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ftypes=['py', 'sh', 'js', 'pp', 'css', 'handlebars', 'html', 'json', 'md', 'txt', 'text'],
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group_by_ftype=True, exclude=exclude)
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# Invoke the appropriate lint checker for each language,
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# and also check files for extra whitespace.
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import logging
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logging.basicConfig(format="%(asctime)s %(message)s")
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logger = logging.getLogger()
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if options.verbose:
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logger.setLevel(logging.INFO)
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else:
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logger.setLevel(logging.WARNING)
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def check_pyflakes():
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if not by_lang['py']:
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return False
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failed = False
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pyflakes = subprocess.Popen(['pyflakes'] + by_lang['py'],
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stdout = subprocess.PIPE,
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stderr = subprocess.PIPE,
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universal_newlines = True)
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# pyflakes writes some output (like syntax errors) to stderr. :/
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for pipe in (pyflakes.stdout, pyflakes.stderr):
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for ln in pipe:
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if options.full or not \
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('imported but unused' in ln or
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'redefinition of unused' in ln or
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("zerver/models.py" in ln and
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" undefined name 'bugdown'" in ln) or
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("scripts/lib/pythonrc.py" in ln and
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" import *' used; unable to detect undefined names" in ln) or
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("zerver/lib/tornado_ioloop_logging.py" in ln and
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"redefinition of function 'instrument_tornado_ioloop'" in ln) or
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("zephyr_mirror_backend.py:" in ln and
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"redefinition of unused 'simplejson' from line" in ln)):
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sys.stdout.write(ln)
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failed = True
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return failed
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def custom_check_file(fn, rules, skip_rules=None):
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failed = False
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lineFlag = False
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for i, line in enumerate(open(fn)):
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line_newline_stripped = line.strip('\n')
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line_fully_stripped = line_newline_stripped.strip()
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skip = False
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lineFlag = True
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for rule in skip_rules or []:
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if re.match(rule, line):
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skip = True
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if skip:
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continue
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for rule in rules:
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exclude_list = rule.get('exclude', set())
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if fn in exclude_list:
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continue
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exclude_list = rule.get('exclude_line', set())
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if (fn, line_fully_stripped) in exclude_list:
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continue
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try:
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line_to_check = line_fully_stripped
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if rule.get('strip') is not None:
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if rule['strip'] == '\n':
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line_to_check = line_newline_stripped
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else:
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raise Exception("Invalid strip rule")
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if re.search(rule['pattern'], line_to_check):
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sys.stdout.write(rule['description'] + ' at %s line %s:\n' % (fn, i+1))
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print(line)
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failed = True
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except Exception:
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print("Exception with %s at %s line %s" % (rule['pattern'], fn, i+1))
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traceback.print_exc()
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lastLine = line
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if lineFlag and '\n' not in lastLine:
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print("No newline at the end of file. Fix with `sed -i '$a\\' %s`" % (fn,))
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failed = True
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return failed
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whitespace_rules = [
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# This linter should be first since bash_rules depends on it.
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{'pattern': '\s+$',
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'strip': '\n',
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'description': 'Fix trailing whitespace'},
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{'pattern': '\t',
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'strip': '\n',
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'exclude': set(['zerver/lib/bugdown/codehilite.py']),
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'description': 'Fix tab-based whitespace'},
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]
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js_rules = [
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{'pattern': '[^_]function\(',
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'description': 'The keyword "function" should be followed by a space'},
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{'pattern': '.*blueslip.warning\(.*',
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'description': 'The module blueslip has no function warning, try using blueslip.warn'},
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{'pattern': '[)]{$',
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'description': 'Missing space between ) and {'},
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{'pattern': '["\']json/',
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'description': 'Relative URL for JSON route not supported by i18n'},
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# This rule is constructed with + to avoid triggering on itself
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{'pattern': " =" + '[^ =>~"]',
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'description': 'Missing whitespace after "="'},
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{'pattern': '^[ ]*//[A-Za-z0-9]',
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'description': 'Missing space after // in comment'},
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{'pattern': 'if[(]',
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'description': 'Missing space between if and ('},
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{'pattern': 'else{$',
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'description': 'Missing space between else and {'},
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{'pattern': '^else {$',
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'description': 'Write JS else statements on same line as }'},
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{'pattern': '^else if',
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'description': 'Write JS else statements on same line as }'},
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{'pattern': 'button\.text\(["\']',
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'exclude': set(['tools/lint-all',
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'frontend_tests/node_tests/templates.js']),
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'description': 'Argument to button.text should be a literal string enclosed by i18n.t()'},
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{'pattern': 'compose_error\(["\']',
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'exclude': set(['tools/lint-all']),
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'description': 'Argument to compose_error should be a literal string enclosed '
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'by i18n.t()'},
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{'pattern': 'report_success\(["\']',
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'exclude': set(['tools/lint-all']),
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'description': 'Argument to report_success should be a literal string enclosed '
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'by i18n.t()'},
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{'pattern': 'report_error\(["\']',
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'exclude': set(['tools/lint-all']),
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'description': 'Argument to report_error should be a literal string enclosed '
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'by i18n.t()'},
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] + whitespace_rules
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python_rules = [
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{'pattern': '^(?!#)@login_required',
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'description': '@login_required is unsupported; use @zulip_login_required'},
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{'pattern': '".*"%\([a-z_].*\)?$',
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'description': 'Missing space around "%"'},
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{'pattern': "'.*'%\([a-z_].*\)?$",
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'exclude': set(['tools/lint-all']),
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'exclude_line': set([
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('zerver/views/users.py',
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"return json_error(_(\"Email '%(email)s' does not belong to domain '%(domain)s'\") %"),
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]),
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'description': 'Missing space around "%"'},
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# This rule is constructed with + to avoid triggering on itself
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{'pattern': " =" + '[^ =>~"]',
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'description': 'Missing whitespace after "="'},
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{'pattern': '":\w[^"]*$',
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'description': 'Missing whitespace after ":"'},
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{'pattern': "':\w[^']*$",
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'description': 'Missing whitespace after ":"'},
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{'pattern': "^\s+[#]\w",
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'strip': '\n',
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'description': 'Missing whitespace after "#"'},
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{'pattern': "== None",
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'exclude': 'tools/lint-all',
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'description': 'Use `is None` to check whether something is None'},
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{'pattern': "type:[(]",
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'description': 'Missing whitespace after ":" in type annotation'},
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{'pattern': "#type",
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'exclude': 'tools/lint-all',
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'description': 'Missing whitespace after "#" in type annotation'},
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{'pattern': ", [)]",
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'description': 'Unnecessary whitespace between "," and ")"'},
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{'pattern': "% [(]",
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'description': 'Unnecessary whitespace between "%" and "("'},
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# This next check could have false positives, but it seems pretty
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# rare; if we find any, they can be added to the exclude list for
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# this rule.
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{'pattern': '% [a-zA-Z0-9_.]*\)?$',
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'description': 'Used % comprehension without a tuple'},
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# To avoid json_error(_variable) and json_error(_(variable))
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{'pattern': '\Wjson_error\(_\(?\w+\)',
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'exclude': set(['tools/lint-all']),
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'description': 'Argument to json_error should be a literal string enclosed by _()'},
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{'pattern': '\Wjson_error\([^_].+\)',
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'exclude': set(['tools/lint-all']),
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'exclude_line': set([
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# function definition
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('zerver/lib/response.py', 'def json_error(msg, data=None, status=400):'),
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# No need to worry about the following as the translation strings
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# are already captured
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('zerver/middleware.py',
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'return json_error(exception.to_json_error_msg(), status=status_code)'),
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('zerver/tornadoviews.py', 'return json_error(result["message"])'),
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('zerver/views/__init__.py',
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'return json_error(data=error_data, msg=ret_error)'),
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('zerver/views/streams.py', 'return json_error(property_conversion)'),
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# We can't do anything about this.
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('zerver/views/realm_emoji.py', 'return json_error(e.messages[0])'),
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]),
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'description': 'Argument to json_error should a literal string enclosed by _()'},
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# To avoid JsonableError(_variable) and JsonableError(_(variable))
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{'pattern': '\WJsonableError\(_\(?\w.+\)',
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'exclude': set(['tools/lint-all']),
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'description': 'Argument to JsonableError should be a literal string enclosed by _()'},
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{'pattern': '\WJsonableError\([^_].+\)',
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'exclude': set(['tools/lint-all']),
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'exclude_line': set([
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# class definition
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('zerver/lib/request.py', 'class JsonableError(Exception):'),
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# No need to worry about the following as the translation strings
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# are already captured
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('zerver/decorator.py', 'raise JsonableError(reason % (role,))'),
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('zerver/lib/actions.py', 'raise JsonableError(e.messages[0])'),
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('zerver/views/messages.py', 'raise JsonableError(error)'),
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('zerver/lib/request.py', 'raise JsonableError(error)'),
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]),
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'description': 'Argument to JsonableError should be a literal string enclosed by _()'},
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{'pattern': '([a-zA-Z0-9_]+)=REQ\([\'"]\\1[\'"]',
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'description': 'REQ\'s first argument already defaults to parameter name'},
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] + whitespace_rules
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bash_rules = [
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{'pattern': '#!.*sh [-xe]',
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'description': 'Fix shebang line with proper call to /usr/bin/env for Bash path, change -x|-e switches to set -x|set -e'},
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] + whitespace_rules[0:1]
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css_rules = [
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{'pattern': '^[^:]*:\S[^:]*;$',
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'description': "Missing whitespace after : in CSS"},
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{'pattern': '{\w',
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'description': "Missing whitespace after '{' in CSS (should be newline)."},
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] + whitespace_rules
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handlebars_rules = whitespace_rules
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html_rules = whitespace_rules + [
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{'pattern': 'placeholder="[^{]',
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'description': "`placeholder` value should be translatable."},
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{'pattern': "placeholder='[^{]",
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'description': "`placeholder` value should be translatable."},
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]
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json_rules = [] # just fix newlines at ends of files
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markdown_rules = whitespace_rules
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txt_rules = whitespace_rules
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def check_custom_checks_py():
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failed = False
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for fn in by_lang['py']:
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if custom_check_file(fn, python_rules):
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failed = True
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return failed
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def check_custom_checks_nonpy():
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failed = False
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for fn in by_lang['js']:
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if custom_check_file(fn, js_rules):
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failed = True
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for fn in by_lang['sh']:
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if custom_check_file(fn, bash_rules):
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failed = True
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for fn in by_lang['css']:
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if custom_check_file(fn, css_rules):
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failed = True
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for fn in by_lang['handlebars']:
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if custom_check_file(fn, handlebars_rules):
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failed = True
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for fn in by_lang['html']:
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if custom_check_file(fn, html_rules):
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failed = True
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for fn in by_lang['json']:
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if custom_check_file(fn, json_rules):
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failed = True
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for fn in by_lang['md']:
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if custom_check_file(fn, markdown_rules):
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failed = True
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for fn in by_lang['txt'] + by_lang['text']:
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if custom_check_file(fn, txt_rules):
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failed = True
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return failed
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lint_functions = {}
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def run_parallel():
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pids = []
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for name, func in lint_functions.items():
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pid = os.fork()
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if pid == 0:
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logging.info("start " + name)
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result = func()
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logging.info("finish " + name)
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os._exit(result)
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pids.append(pid)
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failed = False
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for pid in pids:
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(_, status) = os.waitpid(pid, 0)
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if status != 0:
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failed = True
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return failed
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def lint(func):
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lint_functions[func.__name__] = func
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return func
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try:
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# Make the lint output bright red
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sys.stdout.write('\x1B[1;31m')
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sys.stdout.flush()
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@lint
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def templates():
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result = subprocess.call(['tools/check-templates'])
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return result
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@lint
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def jslint():
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result = subprocess.call(['tools/node', 'tools/jslint/check-all.js']
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+ by_lang['js'])
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return result
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@lint
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def puppet():
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if not by_lang['pp']:
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return 0
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result = subprocess.call(['puppet', 'parser', 'validate'] + by_lang['pp'])
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return result
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@lint
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def custom_py():
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failed = check_custom_checks_py()
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return 1 if failed else 0
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@lint
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def custom_nonpy():
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failed = check_custom_checks_nonpy()
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return 1 if failed else 0
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@lint
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def pyflakes():
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failed = check_pyflakes()
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return 1 if failed else 0
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failed = run_parallel()
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sys.exit(1 if failed else 0)
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finally:
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# Restore normal terminal colors
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sys.stdout.write('\x1B[0m')
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