#!/usr/bin/env bash

# FIXME: Add checks
# FIXME: Add logging
REPO=$(realpath "$GIT_DIR");
TARGET_DIR="$1";
BRANCH="$2";

unset GIT_DIR
unset GIT_PUSH_OPTION_COUNT

function perform_clone_or_pull {
  target="$1";
  echo "Checking out working copy to remote: $target"
  if [ ! -e "$target/.git" ]; then
    git clone "$REPO" "$target"
  fi

    cd "$target"
    echo -n "Working directory: "
    pwd
    git fetch &> /dev/null
    echo "Checking out branch $BRANCH"
    git checkout "origin/$BRANCH"

}


while read old_rew new_rew ref; do
  if [ "$ref" == "refs/heads/$BRANCH" ]; then
    perform_clone_or_pull "$TARGET_DIR";
  fi;
done;