ceng.sh

ceng.sh

#!/bin/bash

base="http://ceng.anadolu.edu.tr/Ders.aspx?dersId="
courses=("120" "95" "105" "103" "24")

cache_folder="$HOME/.cache/ceng"
if [ ! -d "$cache_folder" ]
then
    echo "First time usage."
    echo "Downloading..."

    mkdir "$cache_folder"
    cd "$cache_folder"

    for cid in "${courses[@]}"
    do
        url="$base$cid"
        filename="$cid.html"
        curl -sS -o "$filename" "$url"

        # Remove bullshit
        sed -i '/input type="hidden"/,+1 d' "$filename"
    done

    echo "Done."
else
    cd "$cache_folder"

    for cid in "${courses[@]}"
    do
        url="$base$cid"
        filename="$cid.html"

        html=`curl -sS "$url" | sed '/input type="hidden"/,+1 d'`
        diff=`echo "$html" | diff "$filename" -`
        if [ $? -eq 0 ]; then
            echo "$cid: nothing new."
        else
            echo "$html" > "$filename"
            echo "============================================================="
            echo "$cid:"
            echo "$diff"
            echo "============================================================="

        fi
    done
fi