Re: Histogram diff, libgit2 enhancement, libgit2 => git merge (GSOC)

From: Pavel Raiskup <xraisk00@gmail.com>
Date: Mar 22, 2011, 17:32 UTC
Message-ID: <op.vsq9o4mz2m56ex@localhost.localdomain>
In-Reply-To: <20110320234420.GA1919@sigill.intra.peff.net>

Hi again!

This sounds probably like the most exciting task for me:

Show 13 quoted lines

>> b) Write a minimal Git client using libgit2. Peff keeps bringing this
>> up and I think it's a bangin' good idea. Write something small and
>> 100% self contained in a C executable that runs everywhere with 0
>> dependencies -- don't aim for full feature completion, just the basic
>> stuff to interoperate with a Git repository. Clone, checkout, branch,
>> commit, push, pull, log. I would totally use that shit on my Windows
>> boxes. And since it'll be externally compatible with the original Git
>> client, we can reuse the Git unit tests to test libgit2. HA. Awesome!
>
> Yeah, I would be happy to mentor or co-mentor with Vicent on a project
> like that. Not only might it be useful to actually _use_, but my secret
> motive is that I'd like to start testing libgit2 using some of the
> regular git tests, both for interoperability and for performance.

Do you mean git tests in directory "/t"?

Could you give me a list of possible reusable unit tests? After a quick overview of test suite in git it looks quite complex to reuse. I haven't spent a lot of time studying test-suite, but calling:

test_expect_success 'plain' 'command && command && ..'

reinterprets chain of commands given in (2nd) string and in this
commands is often called git as utility with arguments. Even in this
very easy test feature is expected some command-line-interface behavior
 from tested utility.. Is this the way how do you want to test this new
libgit2-like tool? So this standalone utility is going to have the
same interface as git has -- kind of substitution of git with "git2"
inside test suite?

This probably will lead to some test suite changes, is it truth?