Re: [PATCH] [GSOC] ref-filter: add contents:raw atom

[ZheNing Hu <adlternative@gmail.com>]

ZheNing Hu <adlternative@gmail.com> 于2021年5月21日周五 下午9:12写道：
>
>
> Now we want to use for-each-ref to print a ref point to a tree:
>
> git for-each-ref --format="%(contents:raw)" refs/mytrees/first
>
> will output:
>
> 100644 one
>
> but
>
> git cat-file tree refs/mytrees/first
>
> will output:
>
> 100644 onem�cֈ��q�D�֧hJ)E-100644 two.t���0�+��VjC��eV�ӈq
>
> which is the compressed data, it may contains '\0'.
>
> Whne we use `append_atom()` to add the contents of the tree object
> to the buffer, notice that it uses `strbuf_addstr()`, the underlying call
> is `strlen()`, which truncates the data we added. Can we have any good
> remedies? For example, record the length of "v->s" by "v->s_size" and
> use `strbuf_addstr(&state->stack->output, v->s, v->s_size)`?
>

This is not a good method, because `quote_formatting()` in `append_atom()`
will also cause this truncation problem.

--
ZheNing Hu