|
| 1 | +from semver import Version |
| 2 | + |
| 3 | + |
| 4 | +class UnsupportedDistroVersion(Exception): |
| 5 | + pass |
| 6 | + |
| 7 | + |
| 8 | +class NotAPatchRelease(Exception): |
| 9 | + pass |
| 10 | + |
| 11 | + |
| 12 | +class DistroVersion(Version): # type: ignore[misc] |
| 13 | + def __init__(self, version: str | Version): |
| 14 | + self._version_format_without_patch_number = False |
| 15 | + |
| 16 | + try: |
| 17 | + if isinstance(version, Version): |
| 18 | + version_parsed = version |
| 19 | + elif len(version.split(".")) == 2: |
| 20 | + # Support version strings without patch numbers |
| 21 | + version_parsed = Version.parse(f"{version}.0") |
| 22 | + self._version_format_without_patch_number = True |
| 23 | + else: |
| 24 | + version_parsed = Version.parse(version) |
| 25 | + except Exception as exc: |
| 26 | + raise UnsupportedDistroVersion(exc) |
| 27 | + |
| 28 | + Version.__init__( |
| 29 | + self, |
| 30 | + version_parsed.major, |
| 31 | + version_parsed.minor, |
| 32 | + version_parsed.patch, |
| 33 | + version_parsed.prerelease, |
| 34 | + version_parsed.build, |
| 35 | + ) |
| 36 | + |
| 37 | + @property |
| 38 | + def is_patch_release(self) -> bool: |
| 39 | + if self._version_format_without_patch_number: |
| 40 | + return self.minor > 0 # type: ignore[no-any-return] |
| 41 | + |
| 42 | + return self.patch > 0 # type: ignore[no-any-return] |
| 43 | + |
| 44 | + @property |
| 45 | + def previous_patch_release(self) -> str: |
| 46 | + if not self.is_patch_release: |
| 47 | + raise NotAPatchRelease(f"{self} is not a patch release") |
| 48 | + |
| 49 | + if self._version_format_without_patch_number: |
| 50 | + previous_version = DistroVersion( |
| 51 | + Version(self.major, self.minor - 1, self.patch) |
| 52 | + ) |
| 53 | + return f"{previous_version.major}.{previous_version.minor}" |
| 54 | + |
| 55 | + return str( |
| 56 | + Version( |
| 57 | + self.major, |
| 58 | + self.minor, |
| 59 | + self.patch - 1, |
| 60 | + prerelease=self.prerelease, |
| 61 | + build=self.build, |
| 62 | + ) |
| 63 | + ) |
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