TRACKS CHANGES TO PARTS OF SPREE SINCE A GIVEN BRANCH

git_track_spree

#!/usr/bin/env zsh

# 1304046900  TRACKS CHANGES TO PARTS OF SPREE SINCE A GIVEN BRANCH

old_branch_or_commit="29e3d4f707bdb047a6fabc2543247139027b06fb"

parts=(
  config/locales/en.yml
  core/app/views
)

# Exit on failure
#
set -e

cd tmp

git clone git://github.com/spree/spree.git
cd spree

if output=$(git diff --exit-code --name-status "$old_branch_or_commit" HEAD -- "${parts[@]}"); then
  echo "No changes"
else

  # Group name statuses
  #
  while read -r line; do
    case $line in
      (M*) modified+=("$line") ;;
      (A*) added+=("$line") ;;
      (D*) deleted+=("$line") ;;
    esac
  done <<< "$output"

  # Display groups
  #
  if [[ -n $modified ]]; then
    print -l -- "${modified[@]}"
    echo
  fi
  if [[ -n $added ]]; then
    print -l -- "${added[@]}"
    echo
  fi
  if [[ -n $deleted ]]; then
    print -l -- "${deleted[@]}"
    echo
  fi
  echo "You are now at: $(git rev-parse HEAD)"
fi

cd ..
rm -rf spree