mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-23 21:23:56 +00:00
115 lines
3.5 KiB
Python
115 lines
3.5 KiB
Python
# Common utils for the several housekeeping scripts.
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import os
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import re
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import collections
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import logging as log
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log.basicConfig(level=log.INFO, format='%(levelname)s: %(message)s')
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Lint = collections.namedtuple('Lint', 'name level doc sourcefile group')
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Config = collections.namedtuple('Config', 'name ty doc default')
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lintname_re = re.compile(r'''pub\s+([A-Z_][A-Z_0-9]*)''')
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group_re = re.compile(r'''\s*([a-z_][a-z_0-9]+)''')
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conf_re = re.compile(r'''define_Conf! {\n((?!\n})[\s\S])*\n}''', re.MULTILINE)
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confvar_re = re.compile(
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r'''/// Lint: ([\w,\s]+)\. (.*)\n\s*\(([^:]+):\s*([^\s=]+)\s*=\s*([^\.\)]+).*\),''', re.MULTILINE)
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comment_re = re.compile(r'''\s*/// ?(.*)''')
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lint_levels = {
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"correctness": 'Deny',
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"suspicious": 'Warn',
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"style": 'Warn',
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"complexity": 'Warn',
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"perf": 'Warn',
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"restriction": 'Allow',
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"pedantic": 'Allow',
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"nursery": 'Allow',
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"cargo": 'Allow',
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}
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def parse_lints(lints, filepath):
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comment = []
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clippy = False
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deprecated = False
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name = ""
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with open(filepath) as fp:
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for line in fp:
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if clippy or deprecated:
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m = lintname_re.search(line)
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if m:
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name = m.group(1).lower()
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line = next(fp)
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if deprecated:
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level = "Deprecated"
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group = "deprecated"
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else:
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while True:
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g = group_re.search(line)
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if g:
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group = g.group(1).lower()
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level = lint_levels.get(group, None)
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break
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line = next(fp)
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if level is None:
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continue
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log.info("found %s with level %s in %s",
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name, level, filepath)
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lints.append(Lint(name, level, comment, filepath, group))
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comment = []
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clippy = False
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deprecated = False
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name = ""
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else:
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m = comment_re.search(line)
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if m:
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comment.append(m.group(1))
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elif line.startswith("declare_clippy_lint!"):
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clippy = True
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deprecated = False
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elif line.startswith("declare_deprecated_lint!"):
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clippy = False
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deprecated = True
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elif line.startswith("declare_lint!"):
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import sys
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print(
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"don't use `declare_lint!` in Clippy, "
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"use `declare_clippy_lint!` instead"
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)
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sys.exit(42)
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def parse_configs(path):
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configs = {}
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with open(os.path.join(path, 'utils/conf.rs')) as fp:
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contents = fp.read()
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match = re.search(conf_re, contents)
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confvars = re.findall(confvar_re, match.group(0))
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for (lints, doc, name, ty, default) in confvars:
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for lint in lints.split(','):
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configs[lint.strip().lower()] = Config(name.replace("_", "-"), ty, doc, default)
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return configs
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def parse_all(path="clippy_lints/src"):
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lints = []
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for root, dirs, files in os.walk(path):
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for fn in files:
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if fn.endswith('.rs'):
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parse_lints(lints, os.path.join(root, fn))
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log.info("got %s lints", len(lints))
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configs = parse_configs(path)
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log.info("got %d configs", len(configs))
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return lints, configs
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