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Adjust `--preview` documentation (#2833)
[etc/vim.git] / scripts / check_version_in_basics_example.py
1 """
2 Check that the rev value in the example from ``the_basics.md`` matches
3 the latest version of Black. This saves us from forgetting to update that
4 during the release process.
5 """
6
7 import os
8 import sys
9
10 import commonmark
11 from bs4 import BeautifulSoup
12
13
14 def main(changes: str, the_basics: str) -> None:
15     changes_html = commonmark.commonmark(changes)
16     changes_soup = BeautifulSoup(changes_html, "html.parser")
17     headers = changes_soup.find_all("h2")
18     tags = [header.string for header in headers if header.string != "Unreleased"]
19     latest_tag = tags[0]
20
21     the_basics_html = commonmark.commonmark(the_basics)
22     the_basics_soup = BeautifulSoup(the_basics_html, "html.parser")
23     (version_example,) = [
24         code_block.string
25         for code_block in the_basics_soup.find_all(class_="language-console")
26         if "$ black --version" in code_block.string
27     ]
28
29     for tag in tags:
30         if tag in version_example and tag != latest_tag:
31             print(
32                 "Please set the version in the ``black --version`` "
33                 "example from ``the_basics.md`` to be the latest one.\n"
34                 f"Expected {latest_tag}, got {tag}.\n"
35             )
36             sys.exit(1)
37
38
39 if __name__ == "__main__":
40     with open("CHANGES.md", encoding="utf-8") as fd:
41         changes = fd.read()
42     with open(
43         os.path.join("docs", "usage_and_configuration", "the_basics.md"),
44         encoding="utf-8",
45     ) as fd:
46         the_basics = fd.read()
47     main(changes, the_basics)