30.12.2019 10:32, L A Walsh пишет:
On 2019/12/29 08:48, Andrei Borzenkov wrote:
13:45, L A Walsh :
Had 2 versions of a package where a script I had tried to delete the older package when the newer one was downloaded to replace it.
But in this case, comparing Printrun-2.0.0~rc5.1522069560.e0ee40a-2.5.x86_64.rpm against Printrun-20170720~pre.1494969671.f54b6f9-1.1.x86_64.rpm
The 2.0 version is the latest, but the rpm-ver compare seems to look at numeric v. non-numeric fields and ends up comparing '2' to 20170720 -- and comes up with 2 < 20170720, so '2' is older.
That is exactly what RPM epoch is for.
---- Actually, is this something that should be set in those files by opensuse? In this case, I think both were from tumbleweed. How would packaging people know to bump the epoch number? I.e. if the version scheme has changed for a given package, then should the packager bump that?
Yes. That is how it worked e.g. in Mandrake. SUSE traditionally relied on "zypper dup" magic for this.
Or is it something that would be done by a script comparing new and old versions (though where they'd know what old versions to compare against, I dunno), and bumping epoch if the newer package sorts as an older version?
Any implementation that compares RPM package versions must take in account epoch. When to bump epoch is packager decision.
I sorta wondered what epoch was for but since I only ever saw it as zero, I didn't give it alot of thought.
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