tools/python-requires

   1 #! /usr/bin/python
   2 #
   3 # This file and its contents are supplied under the terms of the
   4 # Common Development and Distribution License ("CDDL"), version 1.0.
   5 # You may only use this file in accordance with the terms of version
   6 # 1.0 of the CDDL.
   7 #
   8 # A full copy of the text of the CDDL should have accompanied this
   9 # source.  A copy of the CDDL is also available via the Internet at
  10 # http://www.illumos.org/license/CDDL.
  11 #
  12
  13 #
  14 # Copyright 2022 Marcel Telka
  15 #
  16
  17 #
  18 # Usage:
  19 #   python-requires PACKAGE [EXTRA]
  20 #
  21 # Print requirements for PACKAGE.  Evaluated and normalized.
  22 # If PACKAGE is - evaluate and normalize stdin.
  23 # With optional EXTRA argument passed print requirements for such extra only.
  24 #
  25
  26 import sys
  27 import re
  28
  29 try:
  30     from importlib.metadata import requires
  31     from packaging.requirements import Requirement
  32     import subprocess
  33 except:
  34     exit()
  35
  36 if len(sys.argv) < 2:
  37     exit()
  38
  39 e = {'extra': sys.argv[2]} if len(sys.argv) > 2 else None
  40 reqs = requires(sys.argv[1]) if sys.argv[1] != "-" else sys.stdin.readlines()
  41
  42 try:
  43     for req in reqs:
  44         try:
  45             r = Requirement(re.sub(r"#.*", "", req))
  46         except:
  47             continue
  48         m = r.marker
  49         if (not m and not e) or (m and m.evaluate(e) and (not e or not m.evaluate())):
  50             print(re.sub(r"[-_.]+", "-", r.name).lower())
  51             for extra in r.extras:
  52                 subprocess.run([sys.argv[0], r.name, extra])
  53 except:
  54     pass