#!/bin/bash

if [ -f config.sh ]; then
    . config.sh
fi

if [ -z "$POSTS_DIR" ]
then
    echo "POSTS_DIR environment variable is unset." > /dev/stderr
    exit 2
fi

if [ -z "$ASSETS_DIR" ]
then
    echo "ASSETS_DIR environment variable is unset." > /dev/stderr
    exit 2
fi

rc=0
sed -rn 's|^.*\!\[.*\]\(%assets_url%/(.*)\)$|\1|p' $POSTS_DIR/* | while read line
do
    if [ ! -f "$ASSETS_DIR/$line" ]
    then
        echo "$line not found"
        rc=1
    fi
done

exit $rc