How to know if git repository has changes that have not been synchronized with server (origin)?

Question

I have a large number of projects setup in Git that were previously managed in CVS. Tortoise CVS as well as Eclipse both made it very easy to see (via icon overlays) if I ha

Answer 1

Yesterday I tried to roll my own solution. Here's what I came up with (for a single repository):

#!/bin/sh

for ref in $(git for-each-ref --format='%(refname)' refs/remotes/); do
    ending=${ref#refs/remotes/}
    remote=${ending%/*}
    branch=${ending#*/}
    if [ "${branch}" == "HEAD" ]; then continue; fi
    echo -e "\e[1;34m$branch on $remote\e[0m"
    echo "AHEAD by:"
    git log --oneline $branch ^$remote/$branch
    echo "BEHIND by:"
    git log --oneline $remote/$branch ^$branch
done

This was based off info I've pulled several sources including answers here. I'm still a bit shady on what the 'git log' command is doing given the parameters I'm providing -- but it seems to spit out the kind of info I want.