mirror of https://github.com/rust-lang/rust.git
96 lines
3.1 KiB
Python
96 lines
3.1 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')
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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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level_re = re.compile(r'''(Forbid|Deny|Warn|Allow)''')
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conf_re = re.compile(r'''define_Conf! {\n([^}]*)\n}''', re.MULTILINE)
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confvar_re = re.compile(
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r'''/// Lint: (\w+). (.*).*\n\s*\([^,]+,\s+"([^"]+)",\s+([^=\)]+)=>\s+(.*)\),''', re.MULTILINE)
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def parse_lints(lints, filepath):
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last_comment = []
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comment = True
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with open(filepath) as fp:
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for line in fp:
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if comment:
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if line.startswith("/// "):
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last_comment.append(line[4:])
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elif line.startswith("///"):
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last_comment.append(line[3:])
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elif line.startswith("declare_lint!"):
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comment = False
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deprecated = False
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restriction = False
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elif line.startswith("declare_restriction_lint!"):
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comment = False
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deprecated = False
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restriction = True
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elif line.startswith("declare_deprecated_lint!"):
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comment = False
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deprecated = True
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else:
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last_comment = []
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if not comment:
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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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if deprecated:
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level = "Deprecated"
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elif restriction:
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level = "Allow"
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else:
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while True:
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m = level_re.search(line)
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if m:
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level = m.group(0)
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break
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line = next(fp)
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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, last_comment, filepath))
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last_comment = []
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comment = True
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if "}" in line:
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log.warn("Warning: missing Lint-Name in %s", filepath)
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comment = True
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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(1))
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for (lint, doc, name, default, ty) in confvars:
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configs[lint.lower()] = Config(name, 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 filename in os.listdir(path):
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if filename.endswith(".rs"):
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parse_lints(lints, os.path.join(path, filename))
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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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