simple script to update all git repos in child directories

update_repos.sh

#!/bin/bash -e

RED='\033[0;31m'
GREEN='\033[0;33m'
NC='\033[0m'

for dir in */; do
    echo "processing $dir"
    cd "$dir" || continue

    if [ -d ".git" ]; then
        status=$(git status -s | { grep -v "^?? " || true; } )
        if [ -n "$status" ]; then
            echo -e "${RED}$dir has uncommitted changes --skipping${NC}"
        else
            git fetch -q
            incoming_changes=$(git rev-list --count "..@{u}")

            echo -e "Pulling ${GREEN}$incoming_changes${NC} changes"
            git --no-pager log --pretty=format:"%h%x09%an%x09%ad%x09%s" --date=short "..@{u}"
            git pull --ff-only || rc="$?"
            if [ -n "$rc" ]; then
              echo -e "${RED}$dir fast forward failed: ${rc} ${NC}";
            fi
        fi
    else
        echo "$dir is not a git repository"
    fi

    cd ..
done