cade6e9685
We compare the same versions a lot, for example downstream with upstream, or git with pacman repo.
176 lines
4.4 KiB
Python
176 lines
4.4 KiB
Python
# Copyright 2016-2020 Christoph Reiter
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# SPDX-License-Identifier: MIT
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import re
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import sys
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import logging
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from itertools import zip_longest
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from typing import Any
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logger = logging.getLogger('app')
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# log INFO for everything to stdout
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root = logging.getLogger()
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root.setLevel(logging.INFO)
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handler = logging.StreamHandler(sys.stdout)
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handler.setLevel(logging.DEBUG)
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handler.setFormatter(logging.Formatter('%(name)s.%(levelname)s: %(message)s'))
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root.addHandler(handler)
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# for the app itself, also log DEBUG
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logger.setLevel(logging.DEBUG)
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def vercmp(v1: str, v2: str) -> int:
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if v1 == v2:
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return 0
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def cmp(a: Any, b: Any) -> int:
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res = (a > b) - (a < b)
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assert isinstance(res, int)
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return res
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def split(v: str) -> tuple[str, str, str | None]:
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if "~" in v:
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e, v = v.split("~", 1)
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else:
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e, v = ("0", v)
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r: str | None = None
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if "-" in v:
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v, r = v.rsplit("-", 1)
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else:
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v, r = (v, None)
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return (e, v, r)
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digit, alpha, other = range(3)
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def get_type(c: str) -> int:
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assert c
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if c.isdigit():
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return digit
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elif c.isalpha():
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return alpha
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else:
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return other
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def parse(v: str) -> list[tuple[int, str]]:
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parts: list[tuple[int, str]] = []
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current = ""
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for c in v:
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if not current:
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current = c
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else:
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current_type = get_type(current)
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if get_type(c) == current_type:
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current += c
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else:
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parts.append((current_type, current))
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current = c
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if current:
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parts.append((get_type(current), current))
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return parts
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def rpmvercmp(v1: str, v2: str) -> int:
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if v1 == v2:
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return 0
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for x1, x2 in zip_longest(parse(v1), parse(v2), fillvalue=None):
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if x1 is None:
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assert x2 is not None
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t2, p2 = x2
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if t2 == alpha:
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return 1
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return -1
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elif x2 is None:
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assert x1 is not None
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t1, p1 = x1
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if t1 == alpha:
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return -1
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return 1
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else:
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t1, p1 = x1
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t2, p2 = x2
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if t1 != t2:
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if t1 == digit:
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return 1
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elif t2 == digit:
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return -1
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elif t1 == other:
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return 1
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elif t2 == other:
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return -1
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elif t1 == other:
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ret = cmp(len(p1), len(p2))
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if ret != 0:
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return ret
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elif t1 == digit:
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ret = cmp(int(p1), int(p2))
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if ret != 0:
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return ret
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elif t1 == alpha:
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ret = cmp(p1, p2)
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if ret != 0:
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return ret
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return 0
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e1, v1, r1 = split(v1)
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e2, v2, r2 = split(v2)
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ret = rpmvercmp(e1, e2)
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if ret == 0:
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ret = rpmvercmp(v1, v2)
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if ret == 0 and r1 is not None and r2 is not None:
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ret = rpmvercmp(r1, r2)
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return ret
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def extract_upstream_version(version: str) -> str:
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return version.rsplit(
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"-")[0].split("+", 1)[0].split("~", 1)[-1].split(":", 1)[-1]
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def strip_vcs(package_name: str) -> str:
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if package_name.endswith(
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("-cvs", "-svn", "-hg", "-darcs", "-bzr", "-git")):
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return package_name.rsplit("-", 1)[0]
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return package_name
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def arch_version_to_msys(v: str) -> str:
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return v.replace(":", "~")
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def version_is_newer_than(v1: str, v2: str) -> bool:
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return vercmp(v1, v2) == 1
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def split_depends(deps: list[str]) -> dict[str, set[str]]:
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r: dict[str, set[str]] = {}
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for d in deps:
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parts = re.split("([<>=]+)", d, 1)
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first = parts[0].strip()
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second = "".join(parts[1:]).strip()
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r.setdefault(first, set()).add(second)
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return r
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def split_optdepends(deps: list[str]) -> dict[str, set[str]]:
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r: dict[str, set[str]] = {}
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for d in deps:
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if ":" in d:
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a, b = d.split(":", 1)
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a, b = a.strip(), b.strip()
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else:
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a, b = d.strip(), ""
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e = r.setdefault(a, set())
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if b:
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e.add(b)
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return r
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