Added successful download check

Now script doesn't shit files everywhere if any package wasn't downloaded successfully

build.sh

@@ -40,10 +40,12 @@ do
    tar -xvf $p.tar.gz
    
    # Make the Arch packages
    cd $p
    makepkg --config ../../makepkg64.conf && mv *.pkg.tar.xz ../../x86_64
    linux32 makepkg --config ../../makepkg32.conf && mv *.pkg.tar.xz ../../i686
    cd ..
    if [-d "$p"]; then
        cd $p
        makepkg --config ../../makepkg64.conf && mv *.pkg.tar.xz ../../x86_64
        linux32 makepkg --config ../../makepkg32.conf && mv *.pkg.tar.xz ../../i686
        cd ..
    fi
done