List the git branch of repositories in sub-directory

g-list-branch.sh

#!/bin/bash
# 
# 'g-list-branch' -> "git list branch(es)"
#
# iterate through subfolders of the current directory and 
# list the current branch they are in - useful to find work
# that was forgotten and turn them into a PR
#
# if the current folder is a git repo, just list the branch for
# this repo and quit, do not proceed to list subfolders
#
# CAH 2023-08-07
#


starting_folder=$(pwd)


scan_folder() {

    local folder=$1
    cd "$folder"

    # fetch the subdirectories of the current directory
    subdirs=($(find . -maxdepth 1 -type d ! -path . ! -name ".venv"))


    if [ ${#subdirs[@]} -gt 0 ]; then
        for subfolder in "${subdirs[@]}";
        do
            local full_path="${folder}/${subfolder}"
            cd "$full_path"

            # determine the lenght of the longest directory name, just to make presentation prettier:
            max_length=30
            #for repo in */
            #do
            #    len=${#repo}
            #    if (( len > max_length )); then
            #        max_length=$len
            #    fi
            #done

            # is the current folder a git repo?  If so, list the branch and quit
            git diff --exit-code > /dev/null 2>&1
            retVal=$?
            
            case $retVal in
              0)
                # it's a git repo, no local changes
                branch="$(git rev-parse --abbrev-ref HEAD)"
                printf "\e[1;34m%-${max_length}s\e[0m    %s\n" "$subfolder" "$branch"
                ;;
              1)
                # it's a git repo, and has local changes
                branch="$(git rev-parse --abbrev-ref HEAD)"
                printf "\e[1;34m%-${max_length}s\e[0m    %-15s  \e[1;33m[ changed ]\e[0m\n" "$subfolder" "$branch"
                ;;
              *)
                # not a git repo
                scan_folder "$full_path"
                #echo '-------------------------------------------------------------------------------'
                ;;
            esac
        done
    fi
}

scan_folder "$starting_folder"

cd "$starting_folder"