#!/bin/sh

set -e

# Find out where the top directory is and go there
top_srcdir="$(cd "$(dirname $0)"; cd ..; pwd)"
cd "$top_srcdir"

# Find out what kind of Vcs directory this is
if [ -f "$top_srcdir/.git/index" ]; then
    echo "I: detected Git repository"
    repo=git
elif [ -f "$top_srcdir/.svn/format" ]; then
    echo "I: detected SVN repository"
    repo=svn
else
    echo "I: not in a Vcs directory, nothing to do"
    exit 0
fi

if [ "$repo" = git ]; then
    git ls-files
else
    :
fi | while read file; do
    case "$file" in
      src/bullet/*|contrib/*|people/*|*/generated/*)
          : # These files aren't ours, don't fix
          ;;
      *.c|*.cpp|*.h)
          ntabs="$(grep -c -P '\t' "$file" || true)"
          nspaces="$(grep -c ' $' "$file" || true)"
          total="$(($ntabs + $nspaces))"
          if [ "$total" != 0 ]; then
              echo "E: $total lines with tabs in $file"
          fi
          ;;
    esac
done