[tz] Version identification (was Re: Downstream use of 2021c)
tgl at sss.pgh.pa.us
Thu Oct 7 17:00:47 UTC 2021
Philip Paeps via tz <tz at iana.org> writes:
> This is looking terribly fragmented. Spare a thought for a hypothetical
> engineer tasked with debugging a Java application on Debian with some
> Python scripts on Fedora talking to a PostgreSQL database running on
BTW, that brings a thought to mind: why isn't there an easy way to
identify the release version of an installed tzdata tree?
I'm envisioning that there could be a text file at the top level,
say /usr/share/zoneinfo/version in typical layouts, containing
"2021a" or the appropriate string. This'd make it a lot easier
to diagnose what you've got in a particular installation.
Some vendors (Red Hat at least) include the tzdata.zi file in
/usr/share/zoneinfo. I persuaded Paul awhile back to put a
version comment at the top of that, so that provides a way to
determine the version if your vendor did that. But it seems
like a mighty redundant approach.
regards, tom lane
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