Hi,

Christian Couder [off-list ref] 于2021年9月4日周六 下午12:30写道：

On Fri, Sep 3, 2021 at 4:40 AM Taylor Blau [off-list ref] wrote:

quoted

Are we interested in participating in the December 2021 round of
Outreachy? September 3rd (tomorrow at 4pm UTC) is the initial community
application deadline.

Christian, Peff, and I discussed off-list that we would each try to pull
together funding for one intern from GitHub and GitLab respectively.

Yeah, and we submitted an initial community application.

quoted

If we're interested, the project submission deadline is September 23rd
[1]. By then, we'd need:

  - Volunteers to act as mentors

I am ok with co-mentoring 2 interns.

quoted

  - Updates to our applicant materials on git.github.io (project ideas,
    as well as potential microprojects).

About microprojects, I have been wondering if there are run_command*()
calls that could be replaced by direct calls to C functions like what
Junio did in ffcb4e94d3 (bisect: do not run show-branch just to show
the current commit, 2021-07-27), and if that could make a good
microproject.

About project ideas, maybe continuing Hariom Verma's GSoC 2020 "Unify
ref-filter formats with other \-\-pretty formats" project could be and
idea, though maybe it could interact too much with ZheNing Hu
continuing his GSoC 2021 "Use ref-filter formats in `git cat-file`"
project.

If the project idea is related to Hariom or my GSoC project, I think I can
provide a lot of help. :)  I can help them as a mentor.

This may be a place to promote my patches: See [1][2][3].
It can provide some extra atoms for git cat-file --batch | --batch-check,
like %(tree), %(author), %(tagger) etc. Although some performance
optimizations have been made, It still has small performance gap.

If the community still expects git cat-file --batch to reuse the logic
of ref-filter,
I expect it to get the attention of reviewers.

The solutions I can think of to further optimize performance are:
1. Delay the evaluation of some ref-filter intermediate data.
2. Let ref-filter code reentrant and can be called in multi-threaded  to take
advantage of multi-core.
These ideas may be very difficult to implement now.

[1]: https://lore.kernel.org/git/CAOLTT8SxHuH2EbiSwQX6pyJJs5KyVuKx6ZOPxpzWLH+Tbz5F+A@mail.gmail.com/ (local)
[2]: https://lore.kernel.org/git/pull.1025.git.1629882532.gitgitgadget@gmail.com/ (local)
[3]: https://github.com/adlternative/git/commits/cat-file-reuse-ref-filter-logic

Thanks.
--
ZheNing Hu