automatically detect yarn/bun/npm

automatic-node-pacakge-manager.sh

# find package manager by looking for lockfiles in current and parent directories
function find-pkg-manager() {
  local dir="$PWD"
  while [ "$dir" != "/" ]; do
    if [ -f "$dir/bun.lockb" ]; then
      echo "bun|$dir/bun.lockb"
      return 0
    elif [ -f "$dir/pnpm-lock.yaml" ]; then
      echo "pnpm|$dir/pnpm-lock.yaml"
      return 0
    elif [ -f "$dir/yarn.lock" ]; then
      echo "yarn|$dir/yarn.lock"
      return 0
    elif [ -f "$dir/package-lock.json" ]; then
      echo "npm|$dir/package-lock.json"
      return 0
    fi
    dir="$(dirname "$dir")"
  done
  return 1
}

# detect yarn/npm/pnpm/bun and install deps
function i() {
  local result=$(find-pkg-manager)
  if [ $? -eq 0 ]; then
    local pm=$(echo "$result" | cut -d'|' -f1)
    local lockfile=$(echo "$result" | cut -d'|' -f2)
    echo "detected $lockfile, running $pm ${@:-install}"
    $pm "${@:-install}"
  else
    echo "No lockfile found in current or parent directories"
  fi
}

# detect package manager and run command
function r(){
  local result=$(find-pkg-manager)
  if [ $? -eq 0 ]; then
    local pm=$(echo "$result" | cut -d'|' -f1)
    local lockfile=$(echo "$result" | cut -d'|' -f2)
    echo "detected $lockfile, running $pm run $@"
    $pm run "$@"
  else
    echo "No lockfile found in current or parent directories"
  fi
}