getextras_single.sh

#!/bin/bash

# Argument to script should be a filename with a list of mame romnames without file ending.
# It takes a base directory with MAME EXTRAs files and searches in pre defined comma separated
# directories like flyers,snap for .png files. These .png files must match the list of romnames
# found in the file from argument. The list of romnames in file must be new line separated without
# file extension. It only copies the first found image and leaves out the rest.

# Argument 1 is a file with romnames without file ending separated by new line. In example:
# bosco
# bjourney
# lizwiz
filename="$1"

# This is the base directory to look for files to copy. It is assumened that this directory have
# subfolders with those images. Usually it is the mame base folder, where all these EXTRAs subfolders
# are found.
basedir="/media/tuncay/K/roms/Pleasuredome/mame/MAME 0.155 EXTRAs"

# List of directories to use found in base directory. The list should be comma separated.
includedir="flyers,marquees,snap"

# Error messages sent to this file. Contains only an entry for each romname, if nothing is found.
logfile="log_single.txt"

# Remove previous logfile.
rm "$logfile"

# Create folder to copy files to.
mkdir -p "extras"

# counter is just temporary number for the print for each romname.
counter=0
# Use the file from argument as the input. Each line represents a romname.
for line in $(cat "$filename")
do
    # Proceed only if the line is not empty.
    if [ -z "$line" ];
    then
        continue
    else
        # Print the actual romname in line of file and corresponding number.
        counter=$[$counter+1]
        romname="$line"
        echo "$counter - $romname"

        # Look for each directory in the comma separated list to copy files from.
        # Variable found will be set to true, if any file for a romname is found.
        found=false
        for dir in $(echo $includedir | sed "s/,/ /g")
        do
            # Build up final file to look at. If file exists, then copy it into
            # the created folder. If not, write a line that the file does not exist.
            # Look only for first found file and then exit for searching next romname.
            file="$basedir/$dir/$romname.png"
            if [ -f "$file" ];
            then
                cp "$file" "extras/$romname-$dir.png"
                found=true
                break
            else
                found=false
            fi
        done

        # If nothing is found per romname, it will create a only one entry for each romname.
        if [ "$found" = false ];
        then
            echo "Nothing found for $romname." >> "$logfile"
        fi

    fi # End of Proceed only if the line is not empty.
done