Renato Ramos Ribeiro Araujo [off-list ref] writes:
Why git does not have a hook 'post-push'?
You may want to look for "(five) valid reasons to have hook" in the
list archive.
It depends on what it does, but if it always runs after user does
"git push", or it always runs if "git push" finishes without an
error, then such a customization does not deserve to be a hook.
$ cat >$HOME/bin/git-mypush <<-\EOF
#!/bin/sh
git push "$@" && {
... write whatever your post-push would do here ...
}
EOF
would work just fine without any change to git itself.