#!/usr/bin/env bash
#
# Updates subfolders git projects.
#
# Actions taken: pull with rebase, autostashes own changes
# and prunes branches no longer in the remote.
#
# Copyright (c) 2023 Ismo Vuorinen. All Rights Reserved.
# License: MIT <https://opensource.org/license/mit/>

set -euo pipefail

# Enable verbosity with VERBOSE=1
VERBOSE="${VERBOSE:-0}"

# Function to print messages if VERBOSE is enabled
# $1 - message (string)
msg()
{
  [ "$VERBOSE" -eq 1 ] && echo "$1"
}

# Function to update a git repository
# $1 - directory (string)
update_repo()
{
  local dir=$1
  (
    cd "$dir" || exit
    msg "Updating $dir"
    git pull --rebase --autostash --prune
  )
}

# Main function to update all subfolder git repositories
main()
{
  for dir in */; do
    update_repo "$dir"
  done

  echo "Done."
  echo ""
}

main "$@"