How to push properly a la subversion

[Matthieu Stigler <matthieu.stigler@gmail.com>]

Hi

I'm discovering git switchig from svn, so I'm still confused... I want 
actually to use git but keeping this idea of one common/public repo that 
different users push/pull from.

I tried just by cloning A to B, changing/commiting B and the pushing to 
A but: then on A the last log is integrated but I have this message with 
gitk "local changes checked in to index but not commited", and those 
local  changes are actually the version of A before the commit from B 
:-( What I expected with svn mentality is that A is changed and updated...

So 2 questions:
-how to remedy?
-hot to avoid?

I could remedy on A by git reset --hard, but ideally I would not need to 
remedy to that...

Should I enter a specifical push option? Or rather work on section 
"Setting up a shared repository"? in 
http://www.kernel.org/pub/software/scm/git/docs/gitcvs-migration.html ?
I tried to do it entering:

$ mkdir /pub/my-repo.git
$ cd /pub/my-repo.git
$ git --bare init --shared
$ git --bare fetch /home/alice/myproject master:master

but then I get also this message "local changes checked in to index but 
not commited" and especially there are many git files appearing that we 
would not want to see.... And furthermore it seems there are complicated 
permissions/ssh issues that I don't need (I'm doing for now only locally).

So can those new files be avoided? What is the best way to set-up git to 
have kind of central repo?

Thanks for your precious help!!

Matthieu Stigler