pycalver 202010.1043

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pycalver 202010.1043

PyCalVer: Automatic Calendar Versioning
DEPRICATION WARNING: This package is no longer maintained. It has been superseded by BumpVer.
PyCalVer is a cli tool to search and replace version strings in the files of
your project.
By default PyCalVer uses a format that looks like this:
v201812.0123-beta, but it can be configured to generate version strings
in many formats, including SemVer and other CalVer variants.
Project/Repo:





Code Quality/CI:








Name
role
since
until




Manuel Barkhau ([email protected])
author/maintainer
2018-09
-






Usage

Configuration
Pattern Search and Replacement
Examples
Version State
The Current Version
Bump It Up


The PyCalVer Format

Parsing
Incrementing Behaviour
Lexical Ids


Semantics of PyCalVer

Intentional Breaking Changes
Costs and Benefits
Unintentional Breaking Changes
Pinning is not a Panacea
Zeno's 1.0 and The Eternal Beta




Usage
Configuration
The fastest way to setup a project is to use pycalver init.
$ pip install pycalver
...
Installing collected packages: click pathlib2 typing toml six pycalver
Successfully installed pycalver-202010.1043

$ pycalver --version
pycalver, version v202010.1043

$ cd myproject
~/myproject$ pycalver init --dry
WARNING - File not found: pycalver.toml
Exiting because of '--dry'. Would have written to pycalver.toml:

[pycalver]
current_version = "v201902.0001-alpha"
version_pattern = "{pycalver}"
commit = true
tag = true
push = true

[pycalver.file_patterns]
"README.md" = [
"{version}",
"{pep440_version}",
]
"pycalver.toml" = [
'current_version = "{version}"',
]

If you already have a setup.cfg file, the init sub-command will write to that
instead.
~/myproject$ ls
README.md setup.cfg setup.py

~/myproject$ pycalver init
WARNING - Couldn't parse setup.cfg: Missing [pycalver] section.
Updated setup.cfg

This will add the something like the following to your setup.cfg
(depending on what files already exist in your project):
# setup.cfg
[pycalver]
current_version = "v201902.0001-alpha"
version_pattern = "{pycalver}"
commit = True
tag = True
push = True

[pycalver:file_patterns]
setup.cfg =
current_version = {version}
setup.py =
"{version}",
"{pep440_version}",
README.md =
{version}
{pep440_version}

This probably won't cover every version number used in your project and you
will have to manually add entries to pycalver:file_patterns. Something
like the following may illustrate additional changes you might need to
make.
[pycalver:file_patterns]
setup.cfg =
current_version = {pycalver}
setup.py =
version="{pep440_pycalver}"
src/mymodule_v*/__init__.py =
__version__ = "{pycalver}"
README.md =
[PyCalVer {calver}{build}{release}]
img.shields.io/static/v1.svg?label=PyCalVer&message={pycalver}&color=blue

To see if a pattern is found, you can use pycalver bump --dry, which will
leave your project files untouched and only show you a diff of the changes
it would have made.
$ pycalver bump --dry --no-fetch
INFO - Old Version: v201901.0001-beta
INFO - New Version: v201902.0002-beta
--- README.md
+++ README.md
@@ -11,7 +11,7 @@

[![Supported Python Versions][pyversions_img]][pyversions_ref]
-[![Version v201901.0001][version_img]][version_ref]
+[![Version v201902.0002][version_img]][version_ref]
[![PyPI Releases][pypi_img]][pypi_ref]

--- src/mymodule_v1/__init__.py
+++ src/mymodule_v1/__init__.py
@@ -1,1 +1,1 @@
-__version__ = "v201901.0001-beta"
+__version__ = "v201902.0002-beta"

--- src/mymodule_v2/__init__.py
+++ src/mymodule_v2/__init__.py
@@ -1,1 +1,1 @@
-__version__ = "v201901.0001-beta"
+__version__ = "v201902.0002-beta"

--- setup.py
+++ setup.py
@@ -44,7 +44,7 @@
name="myproject",
- version="201901.1b0",
+ version="201902.2b0",
license="MIT",

If there is no match for a pattern, bump will report an error.
$ pycalver bump --dry --no-fetch
INFO - Old Version: v201901.0001-beta
INFO - New Version: v201902.0002-beta
ERROR - No match for pattern 'img.shields.io/static/v1.svg?label=PyCalVer&message={pycalver}&color=blue'
ERROR - Pattern compiles to regex 'img\.shields\.io/static/v1\.svg\?label=PyCalVer&message=(?P<pycalver>v(?P<year>\d{4})(?P<month>(?:0[0-9]|1[0-2]))\.(?P<bid>\d{4,})(?:-(?P
<tag>(?:alpha|beta|dev|rc|post|final)))?)&color=blue'

The internally used regular expression is also shown, which you can use to debug the issue, for example on regex101.com.
Pattern Search and Replacement
The pycalver:file_patterns section of the configuration is used both to search
and also to replace version strings in your projects files. Everything except
for valid placeholders is treated as literal text. Available placeholders are:



placeholder
range / example(s)
comment




{pycalver}
v201902.0001-beta



{pep440_pycalver}
201902.1b0



{year}
2019...
%Y


{yy}
18, 19..99, 01, 02
%y


{quarter}
1, 2, 3, 4



{month}
09, 10, 11, 12
%m


{iso_week}
00..53
%W


{us_week}
00..53
%U


{dom}
01..31
%d


{doy}
001..366
%j


{build}
.0123
lexical id


{build_no}
0123, 12345
...


{release}
-alpha, -beta, -rc
--release=


{release_tag}
alpha, beta, rc
...


{semver}
1.2.3



{MAJOR}
1..9, 10..99, 100..
--major


{MINOR}
1..9, 10..99, 100..
--minor


{PATCH}
1..9, 10..99, 100..
--patch



There are some limitations to keep in mind:

A version string cannot span multiple lines.
Characters generated by a placeholder cannot be escaped.
The timezone is always UTC.

The lack of escaping may for example be an issue with badge URLs.
You may want to put the following text in your README.md (note
that shields.io parses the two "-" dashes before beta as one
literal "-"):
https://img.shields.io/badge/myproject-v201812.0116--beta-blue.svg

While you could use the following pattern, which will work fine for a
while:
README.md =
/badge/myproject-v{year}{month}.{build_no}--{release_tag}-blue.svg

Eventually this will break, when you do a final release, at
which point the following will be put in your README.md:
https://img.shields.io/badge/myproject-v201812.0117--final-blue.svg

When what you probably wanted was this (with the --final tag omitted):
https://img.shields.io/badge/myproject-v201812.0117-blue.svg

Examples
The easiest way to test a pattern is with the pycalver test sub-command.
$ pycalver test 'v18w01' 'v{yy}w{iso_week}'
New Version: v19w06
PEP440 : v19w06

$ pycalver test 'v18.01' 'v{yy}w{iso_week}'
ERROR - Invalid version string 'v18.01' for pattern
'v{yy}w{iso_week}'/'v(?P<yy>\d{2})w(?P<iso_week>(?:[0-4]\d|5[0-3]))'
ERROR - Invalid version 'v18.01' and/or pattern 'v{yy}w{iso_week}'.

As you can see, each pattern is internally translated to a regular
expression.
The pycalver test sub-command accepts the same cli flags as pycalver bump to update the components that are not updated automatically (eg.
based on the calendar).
$ pycalver test 'v18.1.1' 'v{yy}.{MINOR}.{PATCH}'
New Version: v19.1.1
PEP440 : 19.1.1

$ pycalver test 'v18.1.1' 'v{yy}.{MINOR}.{PATCH}' --patch
New Version: v19.1.2
PEP440 : 19.1.2

$ pycalver test 'v18.1.2' 'v{yy}.{MINOR}.{PATCH}' --minor
New Version: v19.2.0
PEP440 : 19.2.0

$ pycalver test 'v201811.0051-beta' '{pycalver}'
New Version: v201902.0052-beta
PEP440 : 201902.52b0

$ pycalver test 'v201811.0051-beta' '{pycalver}' --release rc
New Version: v201902.0052-rc
PEP440 : 201902.52rc0

$ pycalver test 'v201811.0051-beta' '{pycalver}' --release final
New Version: v201902.0052
PEP440 : 201902.52

Note that pypi/setuptools/pip will normalize version strings to a format
defined in PEP440. You can use a format that deviates from
this, just be aware that version strings processed by these tools will look
different.
Version State
The "current version" is considered global state that needs to be
stored somewhere. Typically this might be stored in a VERSION
file, or some other file which is part of the repository. This
creates the risk that parallel branches can have different
states. If the "current version" were defined only by files in
the local checkout, the same version might be generated for
different commits.
To avoid this issue, pycalver treats VCS tags as the canonical /
SSOT for the most recent version and attempts to
change this state in the most atomic way possible. This is why
some actions of the pycalver command can take a while, as it is
synchronizing with the remote repository to get the most recent
versions and to push any new version tags as soon as possible.
The Current Version
The current version that will be bumped is defined either as

Typically: The lexically largest git/mercurial tag which matches the
version_pattern from your config.
Initially: Before any tags have been created (or you're not using a
supported VCS), the value of pycalver.current_version in setup.cfg /
pyproject.toml / pycalver.toml.

As part of doing pycalver bump, your local VCS index is updated using
git fetch --tags/hg pull. This reduces the risk that some tags are
unknown locally and makes it less likely that the same version string is
generated for different commits, which would result in an ambiguous version
tag. This can happen if multiple maintainers produce a release at the same
time or if a build system is triggered multiple times and multiple builds
run concurrently to each other. For a small project (with only one
maintainer and no build system) this is a non-issue and you can always use
-n/--no-fetch to skip updating the tags.
$ time pycalver show --verbose
INFO - fetching tags from remote (to turn off use: -n / --no-fetch)
INFO - Working dir version : v201812.0018
INFO - Latest version from git tag: v201901.0019-beta
Current Version: v201901.0019-beta
PEP440 : 201901.19b0

real 0m4,254s

$ time pycalver show --verbose --no-fetch
...
real 0m0,840s

Bump It Up
To increment the current version and publish a new version, you can use the
pycalver bump sub-command. bump is configured in the pycalver config
section:
[pycalver]
current_version = "v201812.0006-beta"
version_pattern = "{pycalver}"
commit = True
tag = True
push = True

This configuration is appropriate to create a commit which

contains the changes to the version strings,
contains no other changes (unrelated to bumping the version),
is tagged with the new version,
has a version tag that is unique in the repository.

In order to make sure only changes to version strings are in the commit,
you need to make sure you have a clean VCS checkout when you invoke
pycalver bump.
The steps performed by bump are:

Check that your repo doesn't have any local changes.
Fetch the most recent global VCS tags from origin
(-n/--no-fetch to disable).
Generate a new version, incremented from the current version.
Update version strings in all files configured in file_patterns.
Commit the updated version strings.
Tag the new commit.
Push the new commit and tag.

Again, you can use --dry to inspect the changes first.
$ pycalver bump --dry
--- setup.cfg
+++ setup.cfg
@@ -65,7 +65,7 @@

[pycalver]
-current_version = v201812.0005-beta
+current_version = v201812.0006-beta
commit = True
tag = True
push = True
...

If everything looks OK, you can do pycalver bump.
$ pycalver bump --verbose
INFO - fetching tags from remote (to turn off use: -n / --no-fetch)
INFO - Old Version: v201812.0005-beta
INFO - New Version: v201812.0006-beta
INFO - git commit --file /tmp/tmpph_npey9
INFO - git tag --annotate v201812.0006-beta --message v201812.0006-beta
INFO - git push origin v201812.0006-beta

The PyCalVer Format
The PyCalVer format for version strings has three parts:

o Year and Month of Release
| o Sequential Build Number
| | o Release Tag (optional)
| | |
---+--- --+-- --+--
v201812 .0123 -beta



Some examples:
v201711.0001-alpha
v201712.0027-beta
v201801.0031
v201801.0032-post
...
v202207.18133
v202207.18134

This slightly verbose format was chosen in part to be distinctive from
others, so that users of your package can see at a glance that your project
will strive to maintain the one semantic that really matters: newer ==
better.
To convince you of the merits of not breaking things, here are some
resources which PyCalVer was inspired by:

"Speculation" talk by Rich
Hicky
Designing a Version by Mahmoud
Hashemi
calver.org
"The cargo cult of versioning" by Kartik
Agaram
The bumpversion project, upon which
PyCalVer is partially based.
"Our Software Dependency Problem" by Russ Cox

Parsing
These version strings can be parsed with the following regular expression:
import re

# https://regex101.com/r/fnj60p/10
PYCALVER_PATTERN = r"""
\b
(?P<pycalver>
(?P<vYYYYMM>
v # "v" version prefix
(?P<year>\d{4})
(?P<month>\d{2})
)
(?P<build>
\. # "." build nr prefix
(?P<build_no>\d{4,})
)
(?P<release>
\- # "-" release prefix
(?P<release_tag>alpha|beta|dev|rc|post)
)?
)(?:\s|$)
"""
PYCALVER_REGEX = re.compile(PYCALVER_PATTERN, flags=re.VERBOSE)

version_str = "v201712.0001-alpha"
version_match = PYCALVER_REGEX.match(version_str)

assert version_match.groupdict() == {
"pycalver" : "v201712.0001-alpha",
"vYYYYMM" : "v201712",
"year" : "2017",
"month" : "12",
"build" : ".0001",
"build_no" : "0001",
"release" : "-alpha",
"release_tag": "alpha",
}

version_str = "v201712.0033"
version_match = PYCALVER_REGEX.match(version_str)

assert version_match.groupdict() == {
"pycalver" : "v201712.0033",
"vYYYYMM" : "v201712",
"year" : "2017",
"month" : "12",
"build" : ".0033",
"build_no" : "0033",
"release" : None,
"release_tag": None,
}

Incrementing Behaviour
To see how version strings are incremented, we can use
pycalver test:
$ pycalver test v201801.0033-beta
New Version: v201902.0034-beta
PEP440 : 201902.34b0

This is the simple case:

The calendar component is updated to the current year and
month.
The build number is incremented by 1.
The optional release tag is preserved as is.

You can explicitly update the release tag by using the
--release=<tag> argument:
$ pycalver test v201801.0033-alpha --release=beta
New Version: v201902.0034-beta
PEP440 : 201902.34b0

$ pycalver test v201902.0034-beta --release=final
New Version: v201902.0035
PEP440 : 201902.35

To maintain lexical ordering of version numbers, the version number is padded
with extra zeros (see Lexical Ids ).
Lexical Ids
The build number padding may eventually be exhausted. In order to preserve
lexical ordering, build numbers for the {build_no} pattern are
incremented in a special way. Examples will perhaps illustrate more
clearly.
"0001"
"0002"
"0003"
...
"0999"
"11000"
"11001"
...
"19998"
"19999"
"220000"
"220001"

What is happening here is that the left-most digit is incremented
early/preemptively. Whenever the left-most digit would change, the padding
of the id is expanded through a multiplication by 11.
>>> prev_id = "0999"
>>> num_digits = len(prev_id)
>>> num_digits
4
>>> prev_int = int(prev_id, 10)
>>> prev_int
999
>>> maybe_next_int = prev_int + 1
>>> maybe_next_int
1000
>>> maybe_next_id = f"{maybe_next_int:0{num_digits}}"
>>> maybe_next_id
"1000"
>>> is_padding_ok = prev_id[0] == maybe_next_id[0]
>>> is_padding_ok
False
>>> if is_padding_ok:
... # normal case
... next_id = maybe_next_id
... else:
... # extra padding needed
... next_int = maybe_next_int * 11
... next_id = str(next_int)
>>> next_id
"11000"

This behaviour ensures that the following semantic is always preserved:
new_version > old_version. This will be true, regardless of padding
expansion. To illustrate the issue this solves, consider what would happen
if we did not expand the padding and instead just incremented numerically.
"0001"
"0002"
"0003"
...
"0999"
"1000"
...
"9999"
"10000"

Here we eventually run into a build number where the lexical ordering is
not preserved, since "10000" > "9999" == False (because the string "1"
is lexically smaller than "9"). With large enough padding this may be a
non issue, but it's better to not have to think about it.
Just as an example of why lexical ordering is a nice property to have,
there are lots of software which read git tags, but which have no logic to
parse version strings. This software can nonetheless order the version tags
correctly using commonly available lexical ordering. At the most basic
level it can allow you to use the UNIX sort command, for example to parse
VCS tags.
$ printf "v0.9.0\nv0.10.0\nv0.11.0\n" | sort
v0.10.0
v0.11.0
v0.9.0

$ printf "v0.9.0\nv0.10.0\nv0.11.0\n" | sort -n
v0.10.0
v0.11.0
v0.9.0

$ printf "0998\n0999\n11000\n11001\n11002\n" | sort
0998
0999
11000
11001
11002

This sorting even works correctly in JavaScript!
> var versions = ["11002", "11001", "11000", "0999", "0998"];
> versions.sort();
["0998", "0999", "11000", "11001", "11002"]

Semantics of PyCalVer

Disclaimer: This section can of course only be aspirational. There is nothing
to prevent package maintainers from publishing packages with different
semantics than what is presented here.

PyCalVer places a greater burden on package maintainers than SemVer.
Backward incompatibility is not encoded in the version string, because
maintainers should not intentionally introduce breaking changes. This
is great for users of a package, who can worry a bit less about an update
causing their project to break. A paranoid user can of course still pin to
a known good version, and freezing dependencies for deployments is still a
good practice, but for development, users ideally shouldn't need any
version specifiers in their requirements.txt. This way they always get the
newest bug fixes and features.
Part of the reason for the distinctive PyCalVer version string, is for
users to be able to recognize, just from looking at the version string,
that a package comes with the promise (or at least aspiration) that it
won't break, that it is safe for users to update. Compare this to a SemVer
version string, where maintainers explicitly state that an update might
break their program and that they may have to do extra work after
updating and even if it hasn't in the past, the package maintainers
anticipate that they might make such breaking changes in the future.
In other words, the onus is on the user of a package to update their
software, if they want to update to the latest version of a package. With
PyCalVer the onus is on package maintainer to maintain backward
compatibility.
Ideally users can trust the promise of a maintainer that the following
semantics will always be true:

Newer is compatible.
Newer has fewer bugs.
Newer has more features.
Newer has equal or better performance.

Alas, the world is not ideal. So how do users and maintainers deal with changes
that violate these promises?
Intentional Breaking Changes

Namespaces are a honking great idea


let's do more of those!


The Zen of Python



If you must make a breaking change to a package, instead of incrementing a
number, the recommended approach with PyCalVer is to create a whole new
namespace. Put differently, the major version becomes part of the name of the
module or even of the package. Typically you might add a numerical suffix, eg.
mypkg -> mypkg2.
In the case of python distributions, you can include multiple module
packages like this.
# setup.py
setuptools.setup(
name="my-package",
license="MIT",
packages=["mypkg", "mypkg2"],
package_dir={"": "src"},
...
)

In other words, you can ship older versions side by side with newer ones,
and users can import whichever one they need. Alternatively you can publish
a new package distribution, with new namespace, but please consider also
renaming the module.
# setup.py
setuptools.setup(
name="my-package-v2",
license="MIT",
packages=["mypkg2"],
package_dir={"": "src"},
...
)

Users will have an easier time working with your package if import mypkg2
is enough to determine which version of your project they are using. A further
benefit of creating multiple modules is that users can import both old and
new modules in the same environment and can use some packages which depend
on the old version as well as some that depend on the new version. The
downside for users, is that they may have to do minimal changes to their
code, even if the breaking change did not affect them.
- import mypkg
+ import mypkg2

def usage_code():
- mypkg.myfun()
+ mypkg2.myfun()

Costs and Benefits
If this seems like overkill because it's a lot of work for you as a
maintainer, consider first investing some time in your tools, so you
minimize future work required to create new packages. I've done this for
my personal projects, but you may find other
approaches to be more appropriate for your use.
If this seems like overkill because you're not convinced that imposing a
very small burden on users is such a big deal, consider that your own
projects may indirectly depend on dozens of libraries which you've never
even heard of. If every maintainer introduced breaking changes only once
per year, users who depend on only a dozen libraries would be dealing with
packaging issues every month! In other words: Breaking things is a big
deal. A bit of extra effort for a few maintainers seems like a fair trade
to lower the effort imposed on many users, who would be perfectly happy to
continue using the old code until they decide when to upgrade.
Unintentional Breaking Changes
The other kind of breaking change is the non-intentional kind, otherwise
known as a "bug" or "regression". Realize first of all, that it is
impossible for any versioning system to encode that this has happened:
Since the maintainer isn't knowingly introducing a bug they naturally can't
update their version numbers to reflect what they don't know about. Instead
we have to deal with these issues after the fact.
The first thing a package maintainer can do is to minimize the chance of
inflicting buggy software on users. After any non-trivial (potentially breaking)
change, it is a good practice to first create an -alpha/-beta/-rc release.
These so called --pre releases are intended to be downloaded only by the few
and the brave: Those who are willing to participate in testing. After any issues
are ironed out with the --pre releases, a final release can be made for the
wider public.
Note that the default behaviour of pip install <package> (without any version
specifier) is to download the latest final release. It will download a --pre
release only if

no final release is available
the --pre flag is explicitly used, or
if the requirement specifier explicitly includes the version number of a
pre release, eg. pip install mypkg==v201812.0007-alpha.

Should a release include a bug (heaven forbid and despite all precautions),
then the maintainer should publish a new release which either fixes the bug
or reverts the change. If users previously downloaded a version of the
package which included the bug, they only have to do pip install --upgrade <package> and the issue will be resolved.
Perhaps a timeline will illustrate more clearly:
v201812.0665 # last stable release
v201812.0666-beta # pre release for testers
v201901.0667 # final release after testing

# bug is discovered which effects v201812.0666-beta and v201901.0667

v201901.0668-beta # fix is issued for testers
v201901.0669 # fix is issued everybody

# Alternatively, revert before fixing

v201901.0668 # same as v201812.0665
v201901.0669-beta # reintroduce change from v201812.0666-beta + fix
v201901.0670 # final release after testing

In the absolute worst case, a change is discovered to break backward
compatibility, but the change is nonetheless considered to be desirable. At that
point, a new release should be made to revert the change.
This allows 1. users who were exposed to the breaking change to update to the
latest release and get the old (working) code again, and 2. users who were not
exposed to the breaking change to never even know anything was broken.
Remember that the goal is to always make things easy for users who have
your package as a dependency. If there is any issue whatsoever, all they
should have to do is pip install --update. If this doesn't work, they may
have to temporarily pin to a known good version, until a fixed release
has been published.
After this immediate fire has been extinguished, if the breaking change is
worth keeping, then create a new module or even a new package. This
package will perhaps have 99% overlap to the previous one and the old one
may eventually be abandoned.
mypkg v201812.0665 # last stable release
mypkg v201812.0666-rc # pre release for testers
mypkg v201901.0667 # final release after testing period

# bug is discovered in v201812.0666-beta and v201901.0667

mypkg v201901.0668 # same as v201812.0665

# new package is created with compatibility breaking code

mypkg2 v201901.0669 # same as v201901.0667
mypkg v201901.0669 # updated readme, declaring support
# level for mypkg, pointing to mypgk2
# and documenting how to upgrade.

Pinning is not a Panacea
Freezing your dependencies by using pip freeze to create a file with packages
pinned to specific version numbers is great to get a stable and repeatable
deployment.
The main problem with pinning is that it is another burden imposed on users,
and it is a burden which in practice only some can bear. The vast majority of
users either 1) pin their dependencies and update them without determining what
changed or if it is safe for them to update, or 2) pin their dependencies and
forget about them. In case 1 the only benefit is that users might at least be
aware of when an update happened, so they can perhaps correlate that a new bug
in their software might be related to a recent update. Other than that, keeping
tabs on dependencies and updating without diligence is hardly better than not
having pinned at all. In case 2, an insurmountable debt will pile up and the
dependencies of a project are essentially frozen in the past.
Yes, it is true that users will be better off if they have sufficient test
coverage to determine for themselves that their code is not broken even after
their dependencies are updated. It is also true however, that a package
maintainer is usually in a better position to judge if a change might cause
something to break.
Zeno's 1.0 and The Eternal Beta
There are two opposite approaches to backward compatibility which find a
reflection in the version numbers they use. In the case of SemVer, if a
project has a commitment to backward compatibility, it may end up never
incriminating the major version, leading to the Zeno 1.0
paradox. On the other end are projects that avoid any
commitment to backward compatibility and forever keep the "beta" label.
Of course an unpaid Open Source developer does not owe anybody a
commitment to backward compatibility. Especially when a project is young
and going through major changes, such a commitment may not make any sense.
For these cases you can still use PyCalVer, just so long as there is a big
fat warning at the top of your README, that your project is not ready for
production yet.
Note that there is a difference between software that is considered to be
in a "beta" state and individual releases which have a -beta tag. These
do not mean the same thing. In the case of releases of python packages, the
release tag (-alpha, -beta, -rc) says something about the stability
of a particular release. This is similar (perhaps
identical) to the meaning of release tags used by the CPython
interpreter. A release tag is not a statement about the general stability
of the software as a whole, it is metadata about a particular release
artifact of a package, eg. a .whl file.
Changelog for https://gitlab.com/mbarkhau/pycalver
v201907.0036

Fix: Don't use git/hg command if commit=False is configured (thanks @valentin87)

v201907.0035

Fix gitlab#6: Add parts {month_short}, {dom_short}, {doy_short}.
Fix gitlab#5: Better warning when using bump with semver (one of --major/--minor/--patch is required)
Fix gitlab#4: Make {release} part optional, so that versions generated by --release=final are parsed.

v201903.0030

Fix: Use pattern from config instead of hardcoded {pycalver} pattern.
Fix: Better error messages for git/hg issues.
Add: Implicit default pattern for config file.

v201903.0028

Fix: Add warnings when configured files are not under version control.
Add: Coloured output for bump --dry

v201902.0027

Fix: Allow --release=post
Fix: Better error reporting for bad patterns
Fix: Regex escaping issue with "?"

v201902.0024

Added: Support for globs in file patterns.
Fixed: Better error reporting for invalid config.

v201902.0020

Added: Support for many more custom version patterns.

v201812.0018

Fixed: Better handling of pattern replacements with "-final" releases.

v201812.0017

Fixed github#2. pycalver init was broken.
Fixed pattern escaping issues.
Added lots more tests for cli.
Cleaned up documentation.

v201812.0011-beta

Add version tags using git/hg.
Use git/hg tags as SSOT for most recent version.
Start using https://gitlab.com/mbarkhau/bootstrapit
Move to https://gitlab.com/mbarkhau/pycalver

v201809.0001-alpha

Initial release

License:

For personal and professional use. You cannot resell or redistribute these repositories in their original state.

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