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Re: linking libgit.a in C++ projects

From
Dmitry Potapov <dpotapov@gmail.com>
Date
Jul 31, 2008, 22:23 UTC
Message-ID
<37fcd2780807311523l2d5a3708xeb09403c0a063898@mail.gmail.com>
In-Reply-To
<ac9f0f090807311444lb2f02e6ud76463b359184fbd@mail.gmail.com>
On Fri, Aug 1, 2008 at 1:44 AM, cte <cestreich@gmail.com> wrote:
Show 5 quoted lines
>
> Using output from the command line utilities as an API has its own set
> of problems. For instance, check out some of the difficulties that
> gitk and qgit have had to deal with:
> http://kerneltrap.org/mailarchive/git/2007/11/2/379067.

There is no problem with parsing. If you want to receive the output in the specific order, Git has to read everything first, and that is *slow*. So, --topo-order is convenient but slow, and it is slow not because it is piping data, but because it takes some time to read the whole history.

> Digging into
> the git internals and reusing its core functions will always be more
> powerful and flexible than parsing command line output.

"Flexible" is not a synonym of the word "useful". For instance, using core functions will not help you to overcome the aforementioned problem. Drawing a graph is NOT what git core functions about. You have to do that in your GUI, and to do that when revisions are given to you in arbitrary order is not easy. Yet, it is something what good GUI should be capable to handle, because otherwise the response time will be bad.

Dmitry
Previous: cteNext: Petr Baudis
Message 16 of 26 in “linking libgit.a in C++ projects”
  1. cteJul 31, 2008
  2. Dmitry PotapovJul 31, 2008
  3. cteJul 31, 2008
  4. Pedro MeloJul 31, 2008
  5. Petr BaudisJul 31, 2008
  6. cteJul 31, 2008
  7. Sverre RabbelierJul 31, 2008
  8. cteJul 31, 2008
  9. Sverre RabbelierJul 31, 2008
  10. Shawn O. PearceJul 31, 2008
  11. Sverre RabbelierJul 31, 2008
  12. Steve FrécinauxAug 4, 2008
  13. cteAug 1, 2008
  14. Linus TorvaldsAug 1, 2008
  15. cteAug 1, 2008
  16. Dmitry PotapovJul 31, 2008
  17. Petr BaudisJul 31, 2008
  18. cteJul 31, 2008
  19. Dmitry PotapovJul 31, 2008
  20. Boaz HarroshJul 31, 2008
  21. Dmitry PotapovJul 31, 2008
  22. Alex RiesenJul 31, 2008
  23. Avery PennarunJul 31, 2008
  24. Alex RiesenAug 3, 2008
  25. Boaz HarroshAug 4, 2008
  26. cteJul 31, 2008

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