# Re: \[PATCH 0/4\] Compile-time extensions for list-object-filter

- From: Ævar Arnfjörð Bjarmason \<hidden\>
- Date: 2021-09-06 00:51:36 
- List: git
- Page: https://ratatoskr.run/git/2021/09/7901319
- Thread: https://ratatoskr.run/git/2021/09/7901311/t.md

```text

On Sun, Sep 05 2021, Andrew Olsen via GitGitGadget wrote:

> Adds an extension: option to list-object-filters, these are implemented by
> static libraries that must be compiled into Git. The Makefile argument
> FILTER_EXTENSIONS makes it easier to compile these extensions into a custom
> build of Git. When no custom filter-extensions are supplied, Git works as
> normal.

Having skimmed this and the added documentation I think what's really
missing is a "why"? What concrete use-case is this going to serve?

I.e. what is an extension you have in mind that's useful, but not so
useful as to even suggest it for inclusion in git.git before coming up
with this plug-in API mechanism?

Also, for such plug-ins the license is going to be GPL-v2 too I assume?
But that aspect isn't covered at all.
```