[PATCH] upload-pack: fix timeout in create_pack_file

Signed-off-by: Matthias Lederhofer <matled@gmx.net>
---
<yacc> fatal: packfile '../linux-2.6/.git/objects/pack/tmp-7iPJo5'
       SHA1 mismatch
<yacc> error: git-fetch-pack: unable to read from git-index-pack
<yacc> error: git-index-pack died with error code 128
<yacc> Any idea what this means?
This happens after ~12 minutes.  The problem is that the loop in
upload-pack.c actually sending the pack does not reset the timeout.
I'd guess --timeout is 600 or a bit more on git.kernel.org :)

This does not help for low timeouts with slow clients. If a client is slow enough so the server is blocked for more time than specified by timeout the connection will be closed too (e.g. 15kb/s with a timeout of 30 (git adds 10 extra) is not enough). We should either add a warning to the man page or try to fix this. I don't know if this can be fixed not using non-blocking sockets.

Perhaps support for resume would be quite useful too but I've no idea how hard this is to implement.

A workaround for is to pull a part of the repository first and the
rest later.  For example using this:
$ git init-db
$ git fetch URL refs/tags/old-tag:refs/tags/old-tag
$ git fetch URL refs/tags/newer-tag:refs/tags/newer-tag
..
---
 upload-pack.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)