Script to fetch the current branch of all repositories on a folder

git_pull.sh

#!/bin/bash

# By default it will fetch the base branch of the current directory, 
# if we want to fetch all branches, pass -all or -A param.
# Run it without downloading:
# bash <(curl -s https://gist.githubusercontent.com/JdeJ/410660ab2bcc4b19d3648e9c92faf9d1/raw/9f4a2d7e08b1e0d41d0825aad3813da4d0481bc1/git_pull.sh)

pull_all_branches() {
    local directory="$1"
    cd "$directory" || return
    echo "Fetching in $PWD"
    git fetch --all
    for branch in `git branch -r | grep -v HEAD`;do
        if [ -z "$(git branch --list ${branch##*/})" ]; then
            echo "Checking out and pulling $branch"
            git checkout --track $branch
        else
            git checkout ${branch##*/}
        fi
        git pull --rebase origin ${branch##*/}
    done
    echo ""
}

pull_current_branch() {
    local directory="$1"
    cd "$directory" || return
    echo "Pulling in $PWD"
    git pull
    echo ""
}

base_dir=$(pwd)
for dir in "$base_dir"/*; do
    if [ -d "$dir" ]; then
        case $1 in
            -all | -A)
                pull_all_branches "$dir"
                ;;
            current | *)
                pull_current_branch "$dir"
                ;;
        esac
    fi
done