#!/bin/bash

run_command()
{
    echo "$@"
    eval "$@"
}

run_command 'time diff -u x3 x4 >/dev/null 2>&1'

{
    rm -rf u
    mkdir u
    cd u
    cp ../x3 x
    git init
    git add .
    git ci -m x
    cp ../x4 x
} >/dev/null 2>&1

echo ''
run_command 'time git diff >/dev/null 2>&1'

exit 0