# Re: \[PATCH v4 0/5\] Sparse index: fetch, pull, ls-files

- From: Elijah Newren \<hidden\>
- Date: 2021-12-22 19:17:41 
- List: git
- Page: https://ratatoskr.run/git/2021/12/7916664
- Thread: https://ratatoskr.run/git/2021/11/7911618/t.md

```text
On Wed, Dec 22, 2021 at 6:20 AM Derrick Stolee via GitGitGadget
[ref] wrote:
>
> This is now based on 'master'.
>
> Did you know that 'fetch' and 'pull' read the index? I didn't, or this would
> have been an integration much earlier in the cycle. They read the index to
> look for the .gitmodules file in case there are submodules that need to be
> fetched. Since looking for a file by name is already protected, we only need
> to disable 'command_requires_full_index' and we are done.
>
> The 'ls-files' builtin is useful when debugging the index, and some scripts
> use it, too. We are not changing the default behavior which expands a sparse
> index in order to show all of the cached blobs. Instead, we add a '--sparse'
> option that allows us to see the sparse directory entries upon request.
...
> Updates in v2
> =============
>
>  * Rebased onto latest ld/sparse-index-blame without issue.
>  * Updated the test to use diff-of-diffs instead of a sequence of greps.
>  * Added patches that remove the use of 'test-tool read-cache --table' and
>    its implementation.
>
>
> Updates in v3
> =============
>
>  * Fixed typo in commit message.
>  * Added comments around doing strange things in an ls-files test.
>  * Fixed adjacent typo in a test comment.
>
>
> Updates in v4
> =============
>
>  * Rebased on to 'master' now that ld/sparse-index-blame is merged.
>  * Change testing strategy to check exact output instead of using 'diff -u'.
>  * Updated documentation to state that directories have a trailing slash.

This version looks good to me:

Reviewed-by: Elijah Newren <redacted>
```