#!/usr/bin/env bash
#ft=bash

function min-jpg {
    if ! command -v jpegtran &> /dev/null ; then
        echo "jpegtran not installed"
    fi
    tmpfile="$(mktemp)"
    ogfile="$1"
    jpegtran -optimize -perfect -outfile "$tmpfile" "$ogfile"
    mv "$tmpfile" "$ogfile"
}

function min-png {
    if ! command -v pngcrush &> /dev/null ; then
        echo "pngcrush not installed"
    fi
    tmpfile="$(mktemp)"
    ogfile="$1"
    pngcrush -rem alla -reduce -brute "$ogfile" "$tmpfile"
    mv "$tmpfile" "$ogfile"
}

function get-create-date {
    date -r "$1" +"%F"
}

function add-date-prefix {
    add_date_prefix "$1" "$2"
}