Re: [WIP 04/15] upload-pack: convert to a builtin

Johannes Schindelin [off-list ref] writes:

On Wed, 6 Dec 2017, Junio C Hamano wrote:
...

quoted

I vaguely recalled and feared that we on purpose kept this program
separate from the rest of the system for a reason, but my mailing
list search is coming up empty.

I only recall that we kept it in the bin/ directory (as opposed to
mlibexec/git-core/) to help with fetching via SSH.

Yes, that is about where it is installed (i.e. on $PATH), which is a
different issue.  

My vague recollection was about what is (and what is not) included
in and linked into the program built, with some reason that is
different from but similar to the reason why remote helpers that
link to curl and openssl libraries are excluded from the builtin
deliberately.  I know we exclude remote-helpers from builtin in
order to save the start-up overhead for other more important
built-in commands by not having to link these heavyweight libs.  I
suspect there was some valid reason why we didn't make upload-pack
a built-in, but am failing to recall what the reason was.