127 lines
3.8 KiB
Python
127 lines
3.8 KiB
Python
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#!/usr/bin/env python
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import os
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import re
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import json
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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(r'''/// Lint: (\w+). (.*).*\n *\("([^"]*)", (?:[^,]*), (.*) => (.*)\),''')
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lint_subheadline = re.compile(r'''^\*\*([\w\s]+)[:?.!]\*\*(.*)''')
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# TODO: actual logging
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def warn(*args): print(args)
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def debug(*args): print(args)
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def info(*args): print(args)
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def parse_path(p="clippy_lints/src"):
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d = []
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for f in os.listdir(p):
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if f.endswith(".rs"):
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parse_file(d, os.path.join(p, f))
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return (d, parse_conf(p))
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def parse_conf(p):
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c = {}
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with open(p + '/utils/conf.rs') as f:
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f = f.read()
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m = re.search(conf_re, f)
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m = m.groups()[0]
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m = re.findall(confvar_re, m)
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for (lint, doc, name, default, ty) in m:
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c[lint.lower()] = (name, ty, doc, default)
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return c
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def parseLintDef(level, comment, name):
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lint = {}
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lint['id'] = name
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lint['level'] = level
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lint['docs'] = {}
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last_section = None
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for line in comment:
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if len(line.strip()) == 0:
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continue
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match = re.match(lint_subheadline, line)
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if match:
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last_section = match.groups()[0]
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text = match and match.groups()[1] or line
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if not last_section:
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warn("Skipping comment line as it was not preceded by a heading")
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debug("in lint `%s`, line `%s`" % name, line)
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lint['docs'][last_section] = (lint['docs'].get(last_section, "") + "\n" + text).strip()
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return lint
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def parse_file(d, f):
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last_comment = []
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comment = True
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with open(f) as rs:
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for line in rs:
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if comment:
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if line.startswith("///"):
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if line.startswith("/// "):
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last_comment.append(line[4:])
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else:
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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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l = line.strip()
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m = re.search(r"pub\s+([A-Z_][A-Z_0-9]*)", l)
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if m:
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name = m.group(1).lower()
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# Intentionally either a never looping or infinite loop
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while not deprecated and not restriction:
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m = re.search(level_re, 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(rs)
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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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info("found %s with level %s in %s" % (name, level, f))
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d.append(parseLintDef(level, last_comment, name=name))
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last_comment = []
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comment = True
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if "}" in l:
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warn("Warning: Missing Lint-Name in", f)
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comment = True
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def main():
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(lints, config) = parse_path()
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info("got %s lints" % len(lints))
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with open("util/gh-pages/lints.json", "w") as file:
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json.dump(lints, file, indent=2)
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info("wrote JSON for great justice")
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if __name__ == "__main__":
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main()
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