#!/usr/bin/env bash

################################################################################
# git-cr-new
# Adds a review at HEAD
################################################################################

set -o nounset
set -o pipefail
if [[ "${TRACE-0}" == "1" ]]; then set -o xtrace; fi

USERNAME=$(git config user.name)
TMP_FILE=".git/REVIEW_EDITMSG.tmp"
MSG_FILE=".git/REVIEW_EDITMSG"

main () {
  # Get a formatted patch of the current permit as a starting point for the note
  git diff HEAD~1 HEAD | grep -E '^[+-]' | sed -e '/---/i\\' | sed -e 's/^/# /' > "$TMP_FILE"

  vi "$TMP_FILE"

  # Remove comments
  grep -Ev '^#' "$TMP_FILE" > "$MSG_FILE"
  # Sign off
  echo -e "\n--\nReviewed by $USERNAME\n--\n" >> "$MSG_FILE"

  git notes append --file="$MSG_FILE"
}

main