tournget

#!/bin/bash
#
# tournget.sh
# script for downloading and merging multiple tournament *.pgn files from
# chess.com
# Author: ralf_h
# Contact: ralf_h-linux<at>gmx.de
#
# http://pastebin.com/R32G8SaE
#
# IMPORTANT NOTE:
# run "sed -i 's/\r//' tournget.sh" to remove CRLF line terminators
#

echo
echo "This script is for downloading and merging multiple tournament *.pgn files from chess.com."
until [[ "$TOURN" =~ [0-9]+ ]]
    do echo
        echo "First we need the identifier of the tournament. Visit the games page of your tournament and copy the plain number you see in the address bar."
        read -p "Insert tournament identifier (e.g. 87416): " TOURN
    done
until [[ "$PAGES" =~ [0-9]+ ]]
    do echo
        echo "How many pages are shown on the tournament games page?"
        read -p "Insert number of pages (e.g. 7): " PAGES
    done
until [ -n "$DIR" ]
    do echo
        echo "In which directory do you want to save your output file?"
        read -ep "Insert directory: $HOME/" -i Downloads/ DIR
    done
until [ -n "$NAME" ]
    do echo
        echo "Choose the name of your output file."
        read -ep "Insert NAME[.pgn] (without '.pgn'): " -i mytournament NAME
    done
echo
echo "Please confirm your input data."
echo "Press any key to continue or 'q' to quit."
read -sn1 char
if echo $char | grep -iq 'q'
    then echo
        echo "Aborted by user."
        exit 1
fi

if [ ! -d "$HOME"/"$DIR" ]
    then mkdir -vp $HOME/$DIR
fi
pushd $HOME/$DIR 1>/dev/null

if [ -f "$NAME".pgn ]
    then echo
        echo "File \"$NAME.pgn\" already exists!"
        echo "Press any key to abort or 'o' to override file."
        read -sn1 char
        if echo $char | grep -iq 'o'
            then echo
                echo "$NAME.pgn will be overwritten."
            else echo
                echo "Aborted. Please choose another output file name."
                exit 1
        fi
fi

if [ -f /tmp/urigames ]
    then
        rm /tmp/urigames
fi

echo
echo "Looking for *pgn files, please wait..."
for (( i = 1; i <= $PAGES; i++ ))
    do "echo reading page $i"
        wget -O - -o /dev/null "http://www.chess.com/tournaments/games?id=$TOURN&page=$i" | grep echess/game >>/tmp/urigames
done

if grep -sqm1 'echess/game' /tmp/urigames
    then sed 's/^.*game?id/http:\/\/www.chess.com\/echess\/download_pgn?id/;s/"\sid.*$//' /tmp/urigames >/tmp/pgnuris
    else echo
        echo "Can't find any games. Please check your input parameters."
        echo
        rm -f /tmp/urigames /tmp/pgnuris
        exit 1
fi

if [ -f /tmp/pgnuris ]
    then echo
        echo "Downloading and merging `wc -l /tmp/pgnuris | sed 's/\s.*$//'` *.pgn files. This might take a while, please wait..."
        wget -i /tmp/pgnuris -O - -o /dev/null >$NAME.pgn
    else echo
        echo "Error while compiling PGN file!"
        exit 1
fi

echo
echo "Deleting temporary files..."
rm -v /tmp/urigames /tmp/pgnuris
popd 1>/dev/null
echo
echo "Done. Your tournament archive \"$NAME.pgn\" in \"$HOME/$DIR\" is ready to use! :)"
echo
exit 0