git push fails with commit error

remoteCommitError

user@bestMachine /e/siti web/MySite (master)
$ git push --all -v -u remoteServer
Pushing to ssh://remoteserver/pathto/git
Repo/MySite/
user@server's password:
Counting objects: 1932, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (1684/1684), done.
Writing objects: 100% (1932/1932), 79.05 MiB | 241 KiB/s, done.
Total 1932 (delta 200), reused 1932 (delta 200)
remote: error: refusing to update checked out branch: refs/heads/master
remote: error: By default, updating the current branch in a non-bare repository
remote: error: is denied, because it will make the index and work tree inconsist
ent
remote: error: with what you pushed, and will require 'git reset --hard' to matc
h
remote: error: the work tree to HEAD.
remote: error:
remote: error: You can set 'receive.denyCurrentBranch' configuration variable to

remote: error: 'ignore' or 'warn' in the remote repository to allow pushing into

remote: error: its current branch; however, this is not recommended unless you
remote: error: arranged to update its work tree to match what you pushed in some

remote: error: other way.
remote: error:
remote: error: To squelch this message and still keep the default behaviour, set

remote: error: 'receive.denyCurrentBranch' configuration variable to 'refuse'.
To ssh://remoteserver/pathto/git/MySite/
 ! [remote rejected] master -> master (branch is currently checked out)
error: failed to push some refs to 'ssh://remoteserver/pathto/git/MySite/'

user@bestMachine /e/siti web/MySite (master)
$