At work we use Git with https auth, which sadly means I can't use ssh keys. Since I don't want to enter my password every time I pull or push changes to the server, I wanted to use my password manager to handle this for me.
Git has pluggable credential helper support for gnome-keyring and netrc, adding pass support turned to be quite easy.
Create a script called "pass-git.sh" and put the following contents in it where 'gitpassword' is your password entry.
#!/bin/bash echo "password="$(pass show gitpassword)
In your git directory which uses https auth execute the following command to setup the script as a credential helper.
git config credential.helper ~/bin/pass-git.sh
Voila, that's all that's it.