#!/usr/bin/env bash

if git rev-parse --verify HEAD >/dev/null 2>&1
then
  against=HEAD
else
  # Initial commit: diff against an empty tree object
  against=$(${git}/bin/git hash-object -t tree /dev/null)
fi

diff="git diff-index --name-only --cached $against --diff-filter d"

nix_files=($($diff -- '*.nix'))
all_files=($($diff))

# Format staged nix files.
if [[ -n "${nix_files[@]}" ]]; then
  nixpkgs-fmt "${nix_files[@]}" \
  && git add "${nix_files[@]}"
fi

# check editorconfig
editorconfig-checker -- "${all_files[@]}"
if [[ $? != '0' ]]; then
  printf "%b\n" \
    "\nCode is not aligned with .editorconfig" \
    "Review the output and commit your fixes" >&2
  exit 1
fi

PUBLIC_FILES=[
  'modules/*'
  'doc/*'
  'hosts/bootstrap.nix'
  'hosts/PubSolarOS.nix'
  'iso/*'
  'lib/*'
  'overlays/*'
  'pkgs/*'
  'profiles/base-user/*'
  'profiles/cachix/*'
  'profiles/core/*'
  'profiles/gaming/*'
  'shell/*'
  'users/modules/*'
  'users/nixos/*'
  'users/profiles/*'
  'users/root/*'
  '.drone/*'
  '.github/*'
  '.drone.yml'
  '.editorconfig'
  '.envrc'
  '.gitignore'
  'CHANGELOG.md'
  'COPYING'
  'default.nix'
  'flake.nix'
  'CHANGELOG.md'
  'CHANGELOG.md'
  'README.md'
  'shell.nix'
]
public_files=($($diff -- 'modules/*'))
private_files=($($diff -- '*.nix'))