Gemfile tools

gistfile1.sh

# Method for finding a file within a project
_file-within-project() {
  local file=$1
  local check_dir=$PWD
  while [ $check_dir != "/" ]; do
    if [ -f "$check_dir/$file" ]; then
      echo "$check_dir/$file"
      return true
    fi
    check_dir="$(dirname $check_dir)"
  done
  false
}

# Method for doing various Gemfile operations:
# - Output currently used local Gemfile
# - "Unlock" local Gemfile
# - Turn off local Gemfile
# - Set local Gemfile, both with relative and absolute path
bundle_gemfile() {
  if [ $# -eq 0 ]; then
    if [ $BUNDLE_GEMFILE ]; then
      echo "Using Bundle Gemfile ($BUNDLE_GEMFILE)"
    else
      echo "Bundle Gemfile not set"
    fi
  else
    case $1 in
      "unlock")
        [ $BUNDLE_GEMFILE ] && cp "Gemfile.lock" "$BUNDLE_GEMFILE.lock";;
      "off")
        unset BUNDLE_GEMFILE;;
      /*)
        [ -f "$1" ] && export BUNDLE_GEMFILE=$1;;
      *)
        [ -f "$1" ] && export BUNDLE_GEMFILE="$PWD/$1";;
    esac
  fi
}
# Quicker alias and ignore pattern for better autocompletion
alias bgem='bundle_gemfile'
zstyle ':completion:*:bundle_gemfile:*' ignored-patterns '(*/)#Gemfile' '(*/)#*.lock'

# Unlock local Gemfile and run bundle
unlocked_bundle() {
  bundle_gemfile unlock
  if [ $# -eq 0 ]; then
    bundle
  else
    bundle $*
  fi
}
# Quicker alias and keep bundle autocompletion
alias b='unlocked_bundle'
compdef _bundle unlocked_bundle=bundle

# Toggle local Gemfile when entering and exiting projects with local Gemfile
_toggle-local-gemfile() {
  local gemfile="Gemfile.local"
  local gemfile_path=$(_file-within-project $gemfile)

  if [ "$gemfile_path" != "" ]; then
    [ $BUNDLE_GEMFILE ] && return
    bundle_gemfile $gemfile_path
  else
    bundle_gemfile off
  fi
}
chpwd_functions+=(_toggle-local-gemfile)