Re: Question about Source Control

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Date	Thu, 20 Mar 2014 18:15:25 +1100
Subject	Re: Question about Source Control
From	Chris Angelico <rosuav@gmail.com>
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On Thu, Mar 20, 2014 at 5:48 PM, Frank Millman <frank@chagford.com> wrote:
> One thing still confuses me. Over the lifetime of a project, there could be
> many thousands of changesets. Some of those could be tagged as 'major
> releases'. Someone wishing to clone the project from scratch may want to
> start from the latest major release, and not download every changeset since
> the project started.
>
> How is this handled in practice?

There are several ways, but the most common is to simply tag a
revision along the way; Pike does this, and I do the same in Gypsum.

Pike 7.8.700 is commit 1ace5c:
http://pike-git.lysator.liu.se/gitweb.cgi?p=pike.git;a=commit;h=1ace5c8e7c5c14fcaeeefd307b1ec99b80560311

Gypsum 1.1.0 is commit d937bf:
https://github.com/Rosuav/Gypsum/tree/v1.1.0

You can then offer a non-source-control means of downloading that
specific revision. Github does this for me automatically:

https://github.com/Rosuav/Gypsum/archive/v1.1.0.zip

Pike goes further and publishes binaries for various systems, too, and
the source archive isn't quite a pure snapshot of git at that point
(it has some intermediate files so as to reduce dependencies), but the
effect is the same - if you want to get Pike 7.8.700, you don't need
all the changes:

http://pike.lysator.liu.se/download/pub/pike/latest-stable/

Python also snapshots like that, but with a much more complicated
history than either of the above; the Python download pages offer you
source tarballs and compiled binaries. If you want to find version
3.3.1 in source control, just look that up in the .hgtags file, which
says that "v3.3.1" is d9893d. (I'm not familiar with hg-web, so I
can't provide a link. But it's effectively the same as I showed
above.)

ChrisA

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Re: Question about Source Control Chris Angelico <rosuav@gmail.com> - 2014-03-20 18:15 +1100
  Re: Question about Source Control Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-03-21 11:19 +1300
    Re: Question about Source Control Chris Angelico <rosuav@gmail.com> - 2014-03-21 09:34 +1100
    Re: Question about Source Control albert@spenarnc.xs4all.nl (Albert van der Horst) - 2014-03-22 17:53 +0000

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