Open all files associated with JIRA ticket in current branch

openCommitsIn

# Takes one optional argument [JIRA TICKET NUM] in the format XXXX-0000. e.g. LOOP-1234.
# Opens all files changed associated with JIRA ticket. If no argument is provided, JIRA ticket is attempted to be taken from branch name.
function openCommitsIn {
  local FILE_EDITOR="subl"
  local MIN_THRESH=5

  filesChanged() {
    git log --grep "$1" --stat --name-only | grep -E ".(tag|jsp.?|vm|ftl|js|(s)?css)$" | sort | uniq
  }

  openFiles() {
    local cwd=`pwd`
    local repoRoot=$(git rev-parse --show-toplevel 2>/dev/null)

    echo "Opening files."

    cd "$repoRoot"
    filesChanged "$TICKET" | xargs "$FILE_EDITOR"
    cd $cwd
    return
  }

  filesNotFound() {
    echo "Ticket not found, please use 'openCommitsIn <XXXXX-0000>' format and verify your ticket exists in this branch. e.g. 'openCommitsIn LOOP-1234'"
  }

  if [ -z "$1" ]; then
    local TICKET=$(git rev-parse --abbrev-ref HEAD | grep -Eo '([A-Z]{3,}-)([0-9]+)' -m 1)
    
    echo "No ticket entered, using branch name $TICKET."
  else
    if [[ $1 =~ ^([A-Z]{3,}-)([0-9]+)$ ]]; then
      local TICKET="$1"

      echo "Using $TICKET"
    else
      filesNotFound
      return
    fi
  fi

  local FILES=$(filesChanged $TICKET)
  local FILES_COUNT=$(filesChanged $TICKET | wc -l)

  if [ $FILES_COUNT -eq "0" ]; then
    filesNotFound
    return
  elif [ $FILES_COUNT -ge $MIN_THRESH ]; then
    while true; do
      echo -e "Open $FILES_COUNT files? (Y/n)"
      read yn
      case $yn in
        [Yy]* )
          openFiles; break;;
        [Nn]* )
          return; break;;
        * )
          echo "Invalid response, please enter Y or N."; break;;
      esac
    done
  else
    openFiles
    return
  fi
}