#!/bin/sh

die () {
    echo >&2 "$*"
    exit 1
}

usage() {
    die "usage: git add [-n] [-v] <file>..."
}

show_only=
verbose=
while : ; do
  case "$1" in
    -n)
        show_only=true
        ;;
    -v)
        verbose=--verbose
        ;;
    -*)
        usage
        ;;
    *)
        break
        ;;
  esac
  shift
done

GIT_DIR=$(git-rev-parse --git-dir) || exit

if test -f "$GIT_DIR/info/exclude"
then
        git-ls-files -z \
        --exclude-from="$GIT_DIR/info/exclude" \
        --others --exclude-per-directory=.gitignore -- "$@"
else
        git-ls-files -z \
        --others --exclude-per-directory=.gitignore -- "$@"
fi |
case "$show_only" in
true)
        xargs -0 echo ;;
*)
        git-update-index --add $verbose -z --stdin ;;
esac