| commit | author | age | ||
| 095208 | 1 | #! /usr/bin/python |
| MT | 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 | # | |
| a76c89 | 18 | # Print requirements for a package (first argument). |
| 095208 | 19 | # Evaluated and normalized. |
| a76c89 | 20 | # If the package specified is - evaluate and normalize stdin. |
| MT | 21 | # With optional EXTRA argument passed print requirements for such extra only. |
| 095208 | 22 | # |
| MT | 23 | |
| 24 | import sys | |
| 25 | import re | |
| 26 | ||
| 27 | try: | |
| 28 | try: | |
| 29 | from importlib.metadata import requires | |
| 30 | except ImportError: | |
| 31 | from importlib_metadata import requires | |
| 32 | from packaging.requirements import Requirement | |
| 33 | except: | |
| 34 | exit() | |
| 35 | ||
| 36 | if len(sys.argv) < 2: | |
| 37 | exit() | |
| 38 | ||
| 06c6b6 | 39 | e = {'extra': sys.argv[2]} if len(sys.argv) > 2 else None |
| MT | 40 | # packaging up to 21.3 raises UndefinedEnvironmentName when extra is not |
| 41 | # defined in environment, but marker contains it. This should change in new | |
| 42 | # packaging once released. See https://github.com/pypa/packaging/pull/550. To | |
| 43 | # workaround this (so we do not need to handle exceptions) we pass empty extra | |
| 44 | # in environment when we do not want any extra. | |
| 45 | noe = {'extra': ''} | |
| 46 | ||
| a76c89 | 47 | reqs = requires(sys.argv[1]) if sys.argv[1] != "-" else sys.stdin.readlines() |
| MT | 48 | |
| 095208 | 49 | try: |
| a76c89 | 50 | for req in reqs: |
| 915419 | 51 | try: |
| MT | 52 | r = Requirement(re.sub(r"#.*", "", req)) |
| 53 | except: | |
| 54 | continue | |
| 06c6b6 | 55 | m = r.marker |
| MT | 56 | if (not m and not e) or m and ((not e and m.evaluate(noe)) or (e and not m.evaluate(noe) and m.evaluate(e))): |
| 57 | print(re.sub(r"[-_.]+", "-", r.name).lower()) | |
| 095208 | 58 | except: |
| MT | 59 | pass |
