git search TODO script

function search_todo() {
  # This function will search for TODO items in the file(s) modified by the specified user.
  # Usage: search_todo <username> [--exclude <pattern>]... [search-dir]

  if [[ $# -lt 1 ]]; then
    echo "Usage: search_todo <username> [--exclude <pattern>]... [search-dir]"
    return 1
  fi

  local USERNAME=$1
  shift

  # Parse the exclude patterns
  local SEARCH_DIR="."
  local exclude_pattern=false
  local EXCLUDE_PATTERN
  while [[ $# -gt 0 ]]; do
    case "$1" in
      --exclude)
        exclude_pattern=true
        ;;
      *)
        if $exclude_pattern; then
          EXCLUDE_PATTERN="$1"
          exclude_pattern=false
        else
          SEARCH_DIR="$1"
        fi
        ;;
    esac
    shift
  done

  # Use git ls-files to get a list of all non-directory files in the specified search directory, excluding files that match the specified exclude pattern(s)
  local FILES=$(git ls-files --exclude-standard --cached --modified --others -- "$SEARCH_DIR/" | grep -vE "/$" | grep -vE "$EXCLUDE_PATTERN" | tr '\n' ' ')

  # Use git blame to get a list of TODO lines modified by the user, excluding lines that match the specified file patterns
  local TODO_LINES=$(git blame --show-email --show-name --show-number -s -f -L '/TODO/' --author="$USERNAME" $FILES | grep -E "^\w+\W+[A-Z]+\w+.*TODO" | sed "s/^[^0-9]*//" | sort -u)

  # Use awk to extract the filename and line number of each TODO line
  echo "$TODO_LINES" | awk '{print $1 ":" $2}'

  # Use ag to search for TODO items in the file(s) containing the affected line numbers
  local FILENAMES=$(echo "$TODO_LINES" | awk -F: '{print $1}' | sort -u)
  grep "TODO" $FILENAMES
}