pkgs/common-updater/scripts/list-directory-versions

   1 #!/usr/bin/env python
   2
   3 import argparse
   4 import requests
   5 import os
   6 import subprocess
   7 import json
   8 import re
   9 from bs4 import BeautifulSoup
  10
  11 parser = argparse.ArgumentParser(
  12     description="Get all available versions listed for a package in a site."
  13 )
  14
  15 parser.add_argument(
  16     "--pname",
  17     default=os.environ.get("UPDATE_NIX_PNAME"),
  18     required="UPDATE_NIX_PNAME" not in os.environ,
  19     help="name of the package",
  20 )
  21 parser.add_argument(
  22     "--attr-path",
  23     default=os.environ.get("UPDATE_NIX_ATTR_PATH"),
  24     help="attribute path of the package",
  25 )
  26 parser.add_argument("--url", help="url of the page that lists the package versions")
  27 parser.add_argument("--file", help="file name for writing debugging information")
  28
  29 parser.add_argument("--extra-regex", help="additional regex to filter versions with")
  30
  31
  32 if __name__ == "__main__":
  33     args = parser.parse_args()
  34
  35     pname = args.pname
  36
  37     attr_path = args.attr_path or pname
  38
  39     url = args.url or json.loads(
  40         subprocess.check_output(
  41             [
  42                 "nix-instantiate",
  43                 "--json",
  44                 "--eval",
  45                 "-E",
  46                 f"with import ./. {{}}; dirOf (lib.head {attr_path}.src.urls)",
  47             ],
  48             text=True,
  49         )
  50     )
  51
  52     # print a debugging message
  53     if args.file:
  54         with open(args.file, "a") as f:
  55             f.write(f"# Listing versions for {pname} from {url}\n")
  56
  57     page = requests.get(url)
  58     soup = BeautifulSoup(page.content, "html.parser")
  59     links = soup.find_all("a")
  60     for link in links:
  61         link_url = link.get("href", None)
  62         if link_url is not None:
  63             match = re.fullmatch(
  64                 rf"(.*/)?{args.pname}-([\d.]+?(-[\d\w.-]+?)?)(\.tar)?(\.[^.]*)", link_url
  65             )
  66             if match:
  67                 version = match.group(2)
  68                 if (not args.extra_regex) or re.fullmatch(args.extra_regex, version):
  69                     print(version)