#!/bin/bash

errors=0
for file in $(git diff --cached --name-only | grep "\.go"); do
  diff="$(git show ":${file}" | gofmt -s -d)"
  if [[ -n "$diff" ]]; then
    echo "# *** ERROR: *** File ${file} has not been gofmt'd." >> $1
    errors=1
  fi
done

if [[ $errors == "1" ]]; then
  echo "# To fix these errors, run gofmt -s -w <file>." >> $1
  echo "# If you want to commit in spite of these format errors," >> $1
  echo "# then delete this line. Otherwise, your commit will be" >> $1
  echo "# aborted." >> $1
fi