Branch sub folders

branch.sh

#!/bin/bash

#
# Change git branches in all subfolders (that are git repos)
#
# Usage: ./resources/scripts/branch.sh BRANCH
#

set -e

if [[ "$#" -ne 1 ]]; then
  2>&1 echo "Usage: $0 BRANCH"
  exit 1
fi

FOLDERS=($(find . -type d -maxdepth 1))

for FOLDER in "${FOLDERS[@]}"; do
  if [[ -d "$FOLDER/.git" ]]; then
    pushd $FOLDER > /dev/null
    current_branch=$(git rev-parse --abbrev-ref HEAD)

    if [[ "$current_branch" != "$1" ]]; then
      2>&1 echo "Changing branch for:" $FOLDER
      git fetch
      branch_exists=$(git branch | grep $1 | wc -l)
      if [[ "$branch_exists" -eq 0 ]]; then
        2>&1 echo "Created new branch:" $1
        git checkout -b $1
      else
        git checkout $1
      fi
    fi

    popd > /dev/null
  fi
done