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Their comparison semantics were ill-defined, and mostly an
implementation detail for the old, 'native' specs.
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This will be used in `sort(..., key=lambda v: v.precedence_key)`.
Remove previous comparison/ordering implementation.
The current implementation relies on a 4-tuple:
- major, minor, patch (as integers) - natural order matches precedence
rules
- a tuple of identifiers for the prerelease component.
The identifiers for the prerelease components are based on:
- A `NumericIdentifier` class, that compares number using their natural
order, and always compares lower than non-numeric identifiers
- A `AlphaIdentifier` class for non-numeric identifiers; it compares
versions using ASCII ordering.
- A `MaxIdentifier` class, that compares higher to any other identifier;
used to ensure that a non-prerelease version is greater than any of
its prereleases.
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The internal features from those classes will be removed in future
versions:
- The `Spec` class is incompatible with the support of multiple syntaxes
- The `SpecItem` class was an implementation detail, but doesn't support
complex `Range` combinations.
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The code follows closely the specification available at
https://docs.npmjs.com/misc/semver.html.
Despite similarities, the matching logic is fully separate from the
`native` code, since both might evolve at their own scales.
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Instead of choosing the comparison on each `.match()` call, the
expression is converted to a combination of `Range()` expressions
(simple comparison to a semver-compliant `Version`).
`Range()` objects can be combined with `And` and `Or` through the
`AnyOf` and `AllOf` clauses (sticking to Python's naming scheme).
Some specific flags have been provided to those range, allowing users to
subtly alter the matching behaviour - thus accomodating different
versioning schemes:
- `<0.1.2` won't match `0.1.2-rc1`, unless the prerelease_policy flag is
set to either `always` or `same-patch`
- `<0.1.2` will match `0.1.1-rc1`, unless the `prerelease_policy` flag
is set to `same-patch`
- `==0.1.2` will always match `0.1.2+build44`, unless the `build_policy`
is set to `strict`.
The `Spec` item has been updated, alongside `SpecItem`.
Those objects keep the original expression as attributes, but don't use
them for comparisons.
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According to the stated goal of "intuitive" behaviour, we want:
``Version('0.1.1-a1') not in Spec('<0.1.1')``.
Tests, code and docs have been fixed.
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This simplifies computing neighbouring versions.
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Avoids generating text to be parsed immediately.
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Eases the creation of version objects from existing versions.
We still validate the type and structure of each component.
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Do this so any subclasses will be shown with their class name instead of
a potentially misleading Version
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Drop compatibility layer for Django<1.11.
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Closes #65.
Reported-By: Julian Berman <julian@grayvines.com>
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Update tests accordingly.
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Stop coercing fields magically:
>>> a = SomeModel()
>>> a.version = '0.1.0'
>>> a.version
'0.1.0'
>>> a.full_clean()
>>> a.version
Version('0.1.0')
Closes #43, #45
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Previously, if the patch version was 0 (i.e. as in ~=2.2.0),
this would cause the range to be interpreted as ~=2.2.
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Thanks to @autopulated for pointing the issue!
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The PR was broken through fixed in ``next_minor()`` / ``next_major()``.
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https://github.com/skwashd/python-semanticversion into skwashd-tilde-caret
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Composer assumes equals if no operator is used
npm uses a single equals operator
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It seems that stating the copyright years is useless after all :)
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https://github.com/MinchinWeb/python-semanticversion into MinchinWeb-bump-version-2
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I've updated the `BaseSemVerField` method `get_prep_value` so that it
will return None when the field value is None, rather than the string
representation 'None'. Previously this would break the ORM, which would
save the string 'None' into the database, and then attempt to parse that
as a version number. This change means that the default empty value for
both VersionField and SpecField is None. Both derive from CharField,
which uses an empty string as its default empty value, however it seems
more logical in the case of these objects that no object is null, and
not an empty string.
Includes tests.
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SemVer 2.0.0 states that "Build metadata SHOULD be ignored when
determining version precedence".
This means that, when comparing ``0.1.0+1`` to ``0.1.0+bcd``::
>>> Version('0.1.0+1') == Version('0.1.0+bcd')
False
>>> Version('0.1.0+1') != Version('0.1.0+bcd')
True
>>> Version('0.1.0+1') < Version('0.1.0+bcd')
False
>>> Version('0.1.0+1') > Version('0.1.0+bcd')
False
>>> Version('0.1.0+1') <= Version('0.1.0+bcd')
False
>>> Version('0.1.0+1') >= Version('0.1.0+bcd')
False
>>> compare(Version('0.1.0+1'), Version('0.1.0+bcd'))
NotImplemented
This change also has the following effects:
- When including build metadata in a ``Spec``, the only valid options
are ``Spec('==0.1.0+sth')`` and ``Spec('!=0.1.0+sth')``
- The meaning of ``Spec('==0.1.0+')`` is now "Only version 0.1.0 without
build metadata"
- ``Spec('==0.1.0')`` now matches ``Version('0.1.0+anything')``
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Spec('*') will match all valid Version objects.
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Also normalize the package layout.
Thanks @jdowner-gb & tleach for the report.
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