rust-clippy/util/update_wiki.py

105 lines
2.9 KiB
Python
Executable file

#!/usr/bin/env python
# Generate the wiki Home.md page from the contained doc comments
# requires the checked out wiki in ../rust-clippy.wiki/
# with -c option, print a warning and set exit status 1 if the file would be
# changed.
import os
import re
import sys
def parse_path(p="src"):
d = {}
for f in os.listdir(p):
if f.endswith(".rs"):
parse_file(d, os.path.join(p, f))
return d
START = 0
LINT = 1
def parse_file(d, f):
last_comment = []
comment = True
with open(f) as rs:
for line in rs:
if comment:
if line.startswith("///"):
if line.startswith("/// "):
last_comment.append(line[4:])
else:
last_comment.append(line[3:])
elif line.startswith("declare_lint!"):
comment = False
else:
last_comment = []
if not comment:
l = line.strip()
m = re.search(r"pub\s+([A-Z_]+)", l)
if m:
print("found %s in %s" % (m.group(1).lower(), f))
d[m.group(1).lower()] = last_comment
last_comment = []
comment = True
if "}" in l:
print("Warning: Missing Lint-Name in", f)
comment = True
PREFIX = """Welcome to the rust-clippy wiki!
Here we aim to collect further explanations on the lints clippy provides. So \
without further ado:
"""
WARNING = """
# A word of warning
Clippy works as a *plugin* to the compiler, which means using an unstable \
internal API. We have gotten quite good at keeping pace with the API \
evolution, but the consequence is that clippy absolutely needs to be compiled \
with the version of `rustc` it will run on, otherwise you will get strange \
errors of missing symbols."""
def write_wiki_page(d, f):
keys = list(d.keys())
keys.sort()
with open(f, "w") as w:
w.write(PREFIX)
for k in keys:
w.write("[`%s`](#%s)\n" % (k, k))
w.write(WARNING)
for k in keys:
w.write("\n# `%s`\n\n%s" % (k, "".join(d[k])))
def check_wiki_page(d, f):
errors = []
with open(f) as w:
for line in w:
m = re.match("# `([a-z_]+)`", line)
if m:
v = d.pop(m.group(1), "()")
if v == "()":
errors.append("Missing wiki entry: " + m.group(1))
keys = list(d.keys())
keys.sort()
for k in keys:
errors.append("Spurious wiki entry: " + k)
if errors:
print("\n".join(errors))
sys.exit(1)
def main():
d = parse_path()
if "-c" in sys.argv:
check_wiki_page(d, "../rust-clippy.wiki/Home.md")
else:
write_wiki_page(d, "../rust-clippy.wiki/Home.md")
if __name__ == "__main__":
main()