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Date: Wed, 31 Jan 2024 13:45:21 -0700
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From: Brian Inglis via Cygwin <cygwin@cygwin.com>
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Cc: Brian Inglis <Brian.Inglis@Shaw.ca>, cygwin@cygwin.com
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On 2024-01-31 10:36, ASSI via Cygwin wrote:
> Jon Turney via Cygwin writes:
>> If upstream really is making multiple releases called '6.4', which
>> we're supposed to distinguish by some other means, then there aren't
>> really any good answers...

> There's only one official 6.4 release, but just about everyone packages
> one of the roughly weekly snapshots inbetween releases (depending on
> where you are looking they are also called beta versions), which are
> named 6.4-yyyymmdd upstream.  We can't have a "-" in the version number,
> hence the suggestion to replace it with a "+".

[moving discussion to -apps]

Upstream developer is Thomas Dickey at invisible-island.net so no git.

My only concern is if 6.4+20240203-1 !> 6.4-20240120 as strvercmp test beds 
disagree, presumably about the effect of the delimiter, possibly because the + 
may be treated similarly to a prefix for an RC preceding the 6.4 release?

For guidance I have looked at:

	https://docs.fedoraproject.org/en-US/packaging-guidelines/Versioning/

which states that ~ prefixes pre-stable "snapshot" releases and ^ prefixes 
post-stable "snapshot" releases where . or nothing prefixes upstream bugfix or 
patch level releases, so perhaps we should just use version suffix .yyyymmdd?

I have downloaded and locally installed Fedora rpmdevtools package but Cygwin 
python rpm module seems to lack labelCompare():

$ rpmdev-vercmp 6.4+20240203-1 6.4-20240120
/usr/local/lib/python3.9/site-packages/rpm.py:15: UserWarning: The RPM Python 
bindings are not currently available via PyPI.

Please install them with your distro package manager (typically called
'python2-rpm' or 'python3-rpm'), and ensure that any virtual environments
needing the API are configured to be able to see the system site packages
directory.

   warnings.warn(warning_msg)
Traceback (most recent call last):
   File "/home/BWI/bin/rpmdev-vercmp", line 121, in <module>
     main()
   File "/home/BWI/bin/rpmdev-vercmp", line 108, in main
     rc = rpm.labelCompare((e1 or None, v1 or None, r1 or None),
AttributeError: module 'rpm' has no attribute 'labelCompare'

I also pip3 installed SAS SW rpm_vercmp which seems okay:

$ python3 -c 'import 
rpm_vercmp;print(rpm_vercmp.vercmp("6.4+20240203-1","6.4-20240120"))
'
1

and wrote a wrapper for shell script functions I found which agrees:

$ ~/src/fedora/rpm-ver.bash 6.4+20240203-1 6.4-20240120
0 6 4 20240203 1
0 6 4 20240120
6.4+20240203-1   6.4-20240120
0 6 4 20240203 1         0 6 4 20240120
sizes 5 4 max 5
20240203 != 20240120
8 ? 8
1

How are Cygwin pre-stable RC releases defined differently from post-stable 
snapshot releases and upstream patch releases?

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer     but when there is no more to cut
                                 -- Antoine de Saint-Exupéry

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