Update all git projects in folder

update-all.sh

#!/usr/bin/env bash

ERROR_FILE="$(mktemp)"
ERRORS=""
SEPERATOR="\\n\\e[90m-----------------------\\e[0m\\n"

# Change to script's directory to ensure we're in the correct folder.
# http://stackoverflow.com/questions/3349105/how-to-set-current-working-directory-to-the-directory-of-the-script
cd "${0%/*}" || exit 1

if ! command -v "git" > /dev/null; then
  echo "git not found. Exiting."
  exit 1
fi

_exit_cleanup() {
  echo -e "$(< "${ERROR_FILE}")"
  rm "${ERROR_FILE}"
}

trap _exit_cleanup 0

parse_git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'
}

parse_default_git_branch() {
  git symbolic-ref refs/remotes/origin/HEAD 2> /dev/null | sed 's@^refs/remotes/origin/@@'
}

printf "\\e[1mUpdating all git projects in\\e[0m \\e[1;93m%s\\e[0m ...\\n\\n" "$(pwd -P)"

for DIR in *; do
  if [ -d "${DIR}/.git" ]; then
    cd "${DIR}" || exit 1

    BRANCH="$(parse_git_branch)"
    DEFAULT_BRANCH="$(parse_default_git_branch)"
    printf "#### Updating \\e[1m%s\\e[0m (\\e[1;93m%s\\e[0m) ... " "${DIR}" "${BRANCH}"

    RESULT="$(git pull 2>&1 >/dev/null)"

    if [ "${?}" != "0" ]; then
      printf "\\e[1;91merror\\e[0m\\n"
      if [ "${ERRORS}" == "" ]; then
        printf "%s\\e[1mResults\\e[0m%s" "${SEPERATOR}" "${SEPERATOR}" >> "${ERROR_FILE}"
        ERRORS="errors"
      fi
      printf "\\e[1m%s\\e[0m:\\n\\e[91m%s\\e[0m%s" "${DIR}" "${RESULT}" "${SEPERATOR}" >> "${ERROR_FILE}"
    else
      printf "\\e[1;32msuccess\\e[0m\\n"
    fi

    if [ "${DEFAULT_BRANCH}" == "" ]; then
      printf "\\e[1;33mWarning:\\e[0m No default branch found. Repository broken?\\n\\n"
    elif [ "${BRANCH}" != "${DEFAULT_BRANCH}" ]; then
      printf "\\e[33mWarning:\\e[0m Not on default branch \\e[1m%s\\e[0m.\\n\\n" "${DEFAULT_BRANCH}"
    fi

    cd .. || exit 1
  fi
done