On 2021-09-23 07:36, Jon Turney wrote:
On 22/09/2021 04:30, Brian Inglis wrote:
On 2021-09-21 14:04, Jon Turney wrote:
Release numbers starting with 0 already have a defined meaning.
They are to be used for upstream pre-release versions
e.g pkg-1.0-0.1.g12345678 is a pre-release of pkg 1.0, since this sorts before pkg-1.0-1

See https://fedoraproject.org/wiki/Package_Versioning_Examples, included by reference in https://cygwin.com/packaging-package-files.html, for some more examples.

Thanks for that pointer and link, but the examples are simple with uniform version levels and random strings ordered using sequential prefixes.

The upstream bison test versions I was trying while working on some test config problems with bison 3.8/3.8.1 e.g.
bison-3.8.1.27-dd6e.tar.xz, bison-3.8.1.29-5c106.tar.xz should they be
3.8.1.27-0.1.dd6e, 3.8.1.29-0.1.5c106 or
3.8.1-0.27.dd6e, 3.8.1-0.29.5c106 or even
3.8.1-0.1.27.dd6e, 3.8.1-0.2.29.5c106 ?

Question is a little unclear, but I think the answer is you are looking for is that R should be something like '0.<serial|date>.<hash>'

Thanks Jon,

Sorry I meant to address VERSION and RELEASE, which means none of my alternatives are usable, but my first set of alternatives would work, with the second test release's serial bumped.

For these multi-level versions, is ls -v or sort -V definitive for Cygwin versions, or some other sort?

https://cygwin.com/packaging-package-files.html also describes the ordering.

 Version and release sort according to the following rules:

Contiguous chunks of digits or alphabetic characters are compared
Non-alphanumeric separators for these contiguous chunks are ignored
Alphabetic chunks sort before digit chunks
Digit chunks sort numerically and alphabetic chunks sort lexicographically If all chunks are equal, the string with any suffix remaining is the greater

I looked at the calm, setup, ls, and sort code, and they appear similar, but I missed the subtlety of alpha before numeric.

The first rule also implies that mixed symbol sets like hashes, hex, or encodings generate multiple not usefully comparable chunks.

A package with a higher version is greater, regardless of the release. When two packages have an identical version, the one with the higher release is greater.

The Cygwin code also supports a leading /epoch:/ default 0 like Debian.

This is the ordering known as 'rpmvercmp'.

I noticed the mention of rpmvercmp, but it appeared non-definitive.

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

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