#!/bin/bash
set -e

echo "Running pre-commit flake8"
python tools/flake8_hook.py

if [ $(which clang-tidy) ]
then
  echo "Running pre-commit clang-tidy"
  python tools/clang_tidy.py \
    --paths torch/csrc \
    --diff HEAD \
    -g"-torch/csrc/jit/export.cpp" \
    -g"-torch/csrc/jit/import.cpp" \
    -j
else
  echo "WARNING: Couldn't find clang-tidy executable."
  echo "  Please install it if you want local clang-tidy checks."
fi

echo "Running pre-commit clang-format"
CLANG_FORMAT_DIFF=$(python tools/clang_format.py)

if [[ ${CLANG_FORMAT_DIFF} ]]
then
  echo "${CLANG_FORMAT_DIFF}"
  # Prompt user to accept clang-format changes
  # From: https://stackoverflow.com/a/10015707
  exec < /dev/tty

  while true; do
    read -p "[clang-format hook] Accept changes? (Y/n) " yn
    if [ "$yn" = "" ]; then
      yn='Y'
    fi
    case $yn in
      [Yy] ) python tools/clang_format.py --accept-changes; break;;
      [Nn] ) exit 1;;
      * ) echo "Please answer y or n.";;
    esac
  done
fi