[tz] tzdist and tz at iana

Lester Caine lester at lsces.co.uk
Thu Sep 8 21:54:32 UTC 2016

On 08/09/16 18:27, Paul Eggert wrote:
> On 09/07/2016 12:07 PM, Paul.Koning at dell.com wrote:
>> you could create a history from the entire set of archived tzdata* files.
> Although we could do that (modulo the missing tarballs), the story's
> more complicated because we have two histories: the archived tarballs
> dating back to 1993, and the Git-based history dating back to 1984
> (pre-2012 history was originally in SCCS form). The Git-based history is
> more detailed, as it records each commit whereas the tarballs merely
> record the (much rarer) releases.
> I would rather rely on the Git-based history, as it contains more
> information and it already exists. A downside is that nobody has
> correlated the Git-based history to the tarball history for releases
> before 2012e. (I tried, but ran into glitches and gave up.) Another
> downside is that minor details in older tarballs (e.g., file timestamps)
> are missing from or disagree with the Git-based history. But we can
> leave these less-pressing matters for some software historian of the
> future.

Looks like my 'phone' reply only went to Paul ...

http://hg.lsces.org.uk/hg/tzdata/tags was my attempt to produce a
'diffable' version of the data tarballs. need to add in the resent
releases, which is the easy bit, but I would like to go back down the
list as well and tag the earlier releases.

The thought a couple of years back however was to simply build a short
repository from the tagballs on top of the pre 1996 data from the repo
build. But it is all probably just of academic interest now so is there
actually any point.

Lester Caine - G8HFL
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