Re: sparse checkout - weird behavior

From: Jeff King <peff@peff.net>
Date: Jan 26, 2017, 04:57 UTC
Message-ID: <20170126045701.eouw5kzyq5bevc5c@sigill.intra.peff.net>
In-Reply-To: <CA+298Uh=bfCJq3hmVdGUsinAgKFQd86em_J_8fwB9jQR5PZVgQ@mail.gmail.com>

On Wed, Jan 25, 2017 at 09:59:38PM -0500, Paul Hammant wrote:

Show 18 quoted lines

> Here's a simple reproducible bug - something unexpected in sparse-checkout mode:
> 
>   $ git clone git@github.com:jekyll/jekyll.git --no-checkout
>   Cloning into 'jekyll'...
>   remote: Counting objects: 41331, done.
>   remote: Compressing objects: 100% (5/5), done.
>   remote: Total 41331 (delta 0), reused 0 (delta 0), pack-reused 41326
>   Receiving objects: 100% (41331/41331), 11.91 MiB | 7.98 MiB/s, done.
>   Resolving deltas: 100% (26530/26530), done.
>   $ cd jekyll
>   $ ls
>   $ git config core.sparsecheckout true
>   $ echo 'docs*' > .git/info/sparse-checkout
>   $ git read-tree -mu HEAD
>   $ ls
>   docs rake
> 
> I didn't expect to see 'rake' amongst the results.

If you look inside the rake/ directory, you should see that only "docs.rake" was checked out.

The sparse-checkout file uses the same parser as .git/info/exclude. One important aspect of that file is that entries are _not_ left-anchored unless they start with "/". So you asked Git to include files named "docs*" anywhere in the tree.

You probably wanted just:

  echo /docs >.git/info/sparse-checkout

-Peff