You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
198 lines
6.6 KiB
198 lines
6.6 KiB
"""Meta related things."""
|
|
from __future__ import annotations
|
|
from collections import namedtuple
|
|
import re
|
|
|
|
RE_VER = re.compile(
|
|
r'''(?x)
|
|
(?P<major>\d+)(?:\.(?P<minor>\d+))?(?:\.(?P<micro>\d+))?
|
|
(?:(?P<type>a|b|rc)(?P<pre>\d+))?
|
|
(?:\.post(?P<post>\d+))?
|
|
(?:\.dev(?P<dev>\d+))?
|
|
'''
|
|
)
|
|
|
|
REL_MAP = {
|
|
".dev": "",
|
|
".dev-alpha": "a",
|
|
".dev-beta": "b",
|
|
".dev-candidate": "rc",
|
|
"alpha": "a",
|
|
"beta": "b",
|
|
"candidate": "rc",
|
|
"final": ""
|
|
}
|
|
|
|
DEV_STATUS = {
|
|
".dev": "2 - Pre-Alpha",
|
|
".dev-alpha": "2 - Pre-Alpha",
|
|
".dev-beta": "2 - Pre-Alpha",
|
|
".dev-candidate": "2 - Pre-Alpha",
|
|
"alpha": "3 - Alpha",
|
|
"beta": "4 - Beta",
|
|
"candidate": "4 - Beta",
|
|
"final": "5 - Production/Stable"
|
|
}
|
|
|
|
PRE_REL_MAP = {"a": 'alpha', "b": 'beta', "rc": 'candidate'}
|
|
|
|
|
|
class Version(namedtuple("Version", ["major", "minor", "micro", "release", "pre", "post", "dev"])):
|
|
"""
|
|
Get the version (PEP 440).
|
|
|
|
A biased approach to the PEP 440 semantic version.
|
|
|
|
Provides a tuple structure which is sorted for comparisons `v1 > v2` etc.
|
|
(major, minor, micro, release type, pre-release build, post-release build, development release build)
|
|
Release types are named in is such a way they are comparable with ease.
|
|
Accessors to check if a development, pre-release, or post-release build. Also provides accessor to get
|
|
development status for setup files.
|
|
|
|
How it works (currently):
|
|
|
|
- You must specify a release type as either `final`, `alpha`, `beta`, or `candidate`.
|
|
- To define a development release, you can use either `.dev`, `.dev-alpha`, `.dev-beta`, or `.dev-candidate`.
|
|
The dot is used to ensure all development specifiers are sorted before `alpha`.
|
|
You can specify a `dev` number for development builds, but do not have to as implicit development releases
|
|
are allowed.
|
|
- You must specify a `pre` value greater than zero if using a prerelease as this project (not PEP 440) does not
|
|
allow implicit prereleases.
|
|
- You can optionally set `post` to a value greater than zero to make the build a post release. While post releases
|
|
are technically allowed in prereleases, it is strongly discouraged, so we are rejecting them. It should be
|
|
noted that we do not allow `post0` even though PEP 440 does not restrict this. This project specifically
|
|
does not allow implicit post releases.
|
|
- It should be noted that we do not support epochs `1!` or local versions `+some-custom.version-1`.
|
|
|
|
Acceptable version releases:
|
|
|
|
```
|
|
Version(1, 0, 0, "final") 1.0
|
|
Version(1, 2, 0, "final") 1.2
|
|
Version(1, 2, 3, "final") 1.2.3
|
|
Version(1, 2, 0, ".dev-alpha", pre=4) 1.2a4
|
|
Version(1, 2, 0, ".dev-beta", pre=4) 1.2b4
|
|
Version(1, 2, 0, ".dev-candidate", pre=4) 1.2rc4
|
|
Version(1, 2, 0, "final", post=1) 1.2.post1
|
|
Version(1, 2, 3, ".dev") 1.2.3.dev0
|
|
Version(1, 2, 3, ".dev", dev=1) 1.2.3.dev1
|
|
```
|
|
|
|
"""
|
|
|
|
def __new__(
|
|
cls,
|
|
major: int, minor: int, micro: int, release: str = "final",
|
|
pre: int = 0, post: int = 0, dev: int = 0
|
|
) -> Version:
|
|
"""Validate version info."""
|
|
|
|
# Ensure all parts are positive integers.
|
|
for value in (major, minor, micro, pre, post):
|
|
if not (isinstance(value, int) and value >= 0):
|
|
raise ValueError("All version parts except 'release' should be integers.")
|
|
|
|
if release not in REL_MAP:
|
|
raise ValueError(f"'{release}' is not a valid release type.")
|
|
|
|
# Ensure valid pre-release (we do not allow implicit pre-releases).
|
|
if ".dev-candidate" < release < "final":
|
|
if pre == 0:
|
|
raise ValueError("Implicit pre-releases not allowed.")
|
|
elif dev:
|
|
raise ValueError("Version is not a development release.")
|
|
elif post:
|
|
raise ValueError("Post-releases are not allowed with pre-releases.")
|
|
|
|
# Ensure valid development or development/pre release
|
|
elif release < "alpha":
|
|
if release > ".dev" and pre == 0:
|
|
raise ValueError("Implicit pre-release not allowed.")
|
|
elif post:
|
|
raise ValueError("Post-releases are not allowed with pre-releases.")
|
|
|
|
# Ensure a valid normal release
|
|
else:
|
|
if pre:
|
|
raise ValueError("Version is not a pre-release.")
|
|
elif dev:
|
|
raise ValueError("Version is not a development release.")
|
|
|
|
return super().__new__(cls, major, minor, micro, release, pre, post, dev)
|
|
|
|
def _is_pre(self) -> bool:
|
|
"""Is prerelease."""
|
|
|
|
return bool(self.pre > 0)
|
|
|
|
def _is_dev(self) -> bool:
|
|
"""Is development."""
|
|
|
|
return bool(self.release < "alpha")
|
|
|
|
def _is_post(self) -> bool:
|
|
"""Is post."""
|
|
|
|
return bool(self.post > 0)
|
|
|
|
def _get_dev_status(self) -> str: # pragma: no cover
|
|
"""Get development status string."""
|
|
|
|
return DEV_STATUS[self.release]
|
|
|
|
def _get_canonical(self) -> str:
|
|
"""Get the canonical output string."""
|
|
|
|
# Assemble major, minor, micro version and append `pre`, `post`, or `dev` if needed..
|
|
if self.micro == 0:
|
|
ver = f"{self.major}.{self.minor}"
|
|
else:
|
|
ver = f"{self.major}.{self.minor}.{self.micro}"
|
|
if self._is_pre():
|
|
ver += f'{REL_MAP[self.release]}{self.pre}'
|
|
if self._is_post():
|
|
ver += f".post{self.post}"
|
|
if self._is_dev():
|
|
ver += f".dev{self.dev}"
|
|
|
|
return ver
|
|
|
|
|
|
def parse_version(ver: str) -> Version:
|
|
"""Parse version into a comparable Version tuple."""
|
|
|
|
m = RE_VER.match(ver)
|
|
|
|
if m is None:
|
|
raise ValueError(f"'{ver}' is not a valid version")
|
|
|
|
# Handle major, minor, micro
|
|
major = int(m.group('major'))
|
|
minor = int(m.group('minor')) if m.group('minor') else 0
|
|
micro = int(m.group('micro')) if m.group('micro') else 0
|
|
|
|
# Handle pre releases
|
|
if m.group('type'):
|
|
release = PRE_REL_MAP[m.group('type')]
|
|
pre = int(m.group('pre'))
|
|
else:
|
|
release = "final"
|
|
pre = 0
|
|
|
|
# Handle development releases
|
|
dev = m.group('dev') if m.group('dev') else 0
|
|
if m.group('dev'):
|
|
dev = int(m.group('dev'))
|
|
release = '.dev-' + release if pre else '.dev'
|
|
else:
|
|
dev = 0
|
|
|
|
# Handle post
|
|
post = int(m.group('post')) if m.group('post') else 0
|
|
|
|
return Version(major, minor, micro, release, pre, post, dev)
|
|
|
|
|
|
__version_info__ = Version(2, 5, 0, "final")
|
|
__version__ = __version_info__._get_canonical()
|