Provide passphrase to git in bash script

Question

How do I provide passphrase with git fetch/pull in bash script. I really need to do it in a bash script, without using ssh-add or something like that. is it possible?

Answer 1

I tryed ssh-agent and solution with SSH_ASKPASS but nothing worked, then I found a solution using http://expect.sourceforge.net/

Example(executed in shell):

pass="passwod"
/usr/bin/expect <<EOD
spawn git fetch origin $BRANCH
expect "Enter passphrase for key '/home/$USERNAME/.ssh/id_rsa': "
send "$pass\r"
expect eof
EOD