Re: hg, git, fossil, ...

From	Marko Rauhamaa <marko@pacujo.net>
Newsgroups	comp.lang.python
Subject	Re: hg, git, fossil, ...
Date	2014-08-29 08:59 +0300
Organization	A noiseless patient Spider
Message-ID	<87y4u7vnsh.fsf@elektro.pacujo.net> (permalink)
References	(10 earlier) <mailman.13519.1409165474.18130.python-list@python.org> <87tx4xw3ye.fsf@elektro.pacujo.net> <mailman.13568.1409240362.18130.python-list@python.org> <87oav4wpu0.fsf@elektro.pacujo.net> <mailman.13593.1409278877.18130.python-list@python.org>

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Ian Kelly <ian.g.kelly@gmail.com>:

> So then to tag or branch a release I guess you would create the same
> tag/branch on every single component subrepository? And when you need
> to checkout that old version you checkout every subrepository
> independently. Sounds painful, but not unworkable.

Where I work, we actually have "made a science" out of componentization.
The individual components are very similar to linux's development
packages. They are released internally and have their own life cycles.
In particular, they are not rebuilt when the dependent application is
built.

> that old revision of that component may not be compatible with the
> other components at HEAD.

You don't alter ABIs. Component versioning and interdependencies are
managed rigorously. Even ABI breakages could be handled should they
arise.

> Even if it is, you're still checking out a version of the repository
> that never actually existed. You can't expect to reproduce behavior at
> a particular revision if you can't even consistently recreate the
> revision.

Generally, components only go forward linearly. If your ancient
application version needs a fresh bug fix in a component, it gets the
latest and greatest component version. Branching is supported but has
yet to be needed.


Marko

Thread

Re: Python vs C++ Amirouche Boubekki <amirouche.boubekki@gmail.com> - 2014-08-26 10:12 +0200
  Re: Python vs C++ alex23 <wuwei23@gmail.com> - 2014-08-27 15:43 +1000
    Re: Python vs C++ Ian Kelly <ian.g.kelly@gmail.com> - 2014-08-27 00:23 -0600
    Re: Python vs C++ Ian Kelly <ian.g.kelly@gmail.com> - 2014-08-27 00:33 -0600
    Re: What is acceptable as 'open-source'?  [was Python vs C++] "Frank Millman" <frank@chagford.com> - 2014-08-27 09:50 +0200
      Re: What is acceptable as 'open-source'? Paul Rubin <no.email@nospam.invalid> - 2014-08-27 09:38 -0700
        Re: What is acceptable as 'open-source'? Marko Rauhamaa <marko@pacujo.net> - 2014-08-27 20:14 +0300
          Re: What is acceptable as 'open-source'? Rustom Mody <rustompmody@gmail.com> - 2014-08-27 10:41 -0700
          Re: What is acceptable as 'open-source'? Chris Angelico <rosuav@gmail.com> - 2014-08-28 08:46 +1000
            Re: What is acceptable as 'open-source'? Marko Rauhamaa <marko@pacujo.net> - 2014-08-28 08:31 +0300
              Re: What is acceptable as 'open-source'? Chris Angelico <rosuav@gmail.com> - 2014-08-28 15:44 +1000
      Re: What is acceptable as 'open-source'?  [was Python vs C++] Christian Gollwitzer <auriocus@gmx.de> - 2014-08-27 21:41 +0200
    Re: What is acceptable as 'open-source'? [was Python vs C++] Chris Angelico <rosuav@gmail.com> - 2014-08-27 18:03 +1000
    Re: What is acceptable as 'open-source'?  [was Python vs C++] Ned Batchelder <ned@nedbatchelder.com> - 2014-08-27 07:54 -0400
      Re: What is acceptable as 'open-source'?  [was Python vs C++] Rustom Mody <rustompmody@gmail.com> - 2014-08-27 10:29 -0700
        hg, git, fossil, ... [was Re: What is acceptable as 'open-source'? [was Python vs C++]] Ethan Furman <ethan@stoneleaf.us> - 2014-08-27 11:26 -0700
        Re: hg, git, fossil, ... [was Re: What is acceptable as 'open-source'? [was Python vs C++]] Skip Montanaro <skip@pobox.com> - 2014-08-27 13:51 -0500
          Re: hg, git, fossil, ... Marko Rauhamaa <marko@pacujo.net> - 2014-08-28 08:58 +0300
            Re: hg, git, fossil, ... Tim Chase <python.list@tim.thechases.com> - 2014-08-28 09:56 -0500
            Re: hg, git, fossil, ... Ned Batchelder <ned@nedbatchelder.com> - 2014-08-28 11:39 -0400
              Re: hg, git, fossil, ... Marko Rauhamaa <marko@pacujo.net> - 2014-08-28 19:17 +0300
                Re: hg, git, fossil, ... Tim Chase <python.list@tim.thechases.com> - 2014-08-28 11:32 -0500
                Re: hg, git, fossil, ... Chris Angelico <rosuav@gmail.com> - 2014-08-29 02:38 +1000
                Re: hg, git, fossil, ... Marko Rauhamaa <marko@pacujo.net> - 2014-08-28 22:37 +0300
                Re: hg, git, fossil, ... Chris Angelico <rosuav@gmail.com> - 2014-08-29 09:08 +1000
                Re: hg, git, fossil, ... Lele Gaifax <lele@metapensiero.it> - 2014-08-29 09:43 +0200
                Re: hg, git, fossil, ... Marko Rauhamaa <marko@pacujo.net> - 2014-08-29 10:54 +0300
                Re: hg, git, fossil, ... Terry Reedy <tjreedy@udel.edu> - 2014-08-28 13:40 -0400
                Re: hg, git, fossil, ... Tim Delaney <timothy.c.delaney@gmail.com> - 2014-08-29 07:25 +1000
                Re: hg, git, fossil, ... Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-28 22:41 +0100
                Re: hg, git, fossil, ... Ian Kelly <ian.g.kelly@gmail.com> - 2014-08-28 20:20 -0600
                Re: hg, git, fossil, ... Marko Rauhamaa <marko@pacujo.net> - 2014-08-29 08:59 +0300
                Re: hg, git, fossil, ... Chris Angelico <rosuav@gmail.com> - 2014-08-29 17:20 +1000
                Re: hg, git, fossil, ... Marko Rauhamaa <marko@pacujo.net> - 2014-08-29 10:48 +0300
                Re: hg, git, fossil, ... Chris Angelico <rosuav@gmail.com> - 2014-08-29 12:24 +1000
                Re: hg, git, fossil, ... Rustom Mody <rustompmody@gmail.com> - 2014-08-28 19:53 -0700
            Re: hg, git, fossil, ... Ian Kelly <ian.g.kelly@gmail.com> - 2014-08-28 19:56 -0600
              Re: hg, git, fossil, ... Marko Rauhamaa <marko@pacujo.net> - 2014-08-29 08:50 +0300
                Re: hg, git, fossil, ... Chris Angelico <rosuav@gmail.com> - 2014-08-29 17:19 +1000
                Re: hg, git, fossil, ... Marko Rauhamaa <marko@pacujo.net> - 2014-08-29 10:43 +0300
        Re: hg, git, fossil, ... [was Re: What is acceptable as 'open-source'? [was Python vs C++]] Ethan Furman <ethan@stoneleaf.us> - 2014-08-27 11:58 -0700
        Re: hg, git, fossil, ... [was Re: What is acceptable as 'open-source'? [was Python vs C++]] Chris Angelico <rosuav@gmail.com> - 2014-08-28 09:07 +1000
    Re: Python vs C++ Amirouche Boubekki <amirouche.boubekki@gmail.com> - 2014-08-27 15:15 +0200
    Re: What is acceptable as 'open-source'? [was Python vs C++] "Frank Millman" <frank@chagford.com> - 2014-08-28 15:44 +0200
    Re: What is acceptable as 'open-source'? [was Python vs C++] Chris Angelico <rosuav@gmail.com> - 2014-08-28 23:58 +1000

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