Rom Merge

rommerge.sh

#!/bin/bash

ROMS="./roms-old"
UPGRADES="./upgrades"
NEW="./roms-new"

for ROM_FILE in $ROMS/*.zip $ROMS/*.7z; do
  [ -f "$ROM_FILE" ] || break

  ROM_FILE_NAME=$(basename "$ROM_FILE")
  ROM_FILE_NAME_WITHOUT_EXTENSION="${ROM_FILE_NAME%.*}"
  ROM_FILE_EXTENSION="${ROM_FILE_NAME##*.}"
  
  UPGRADE_FILE="$UPGRADES/$ROM_FILE_NAME"

  if test -f "$UPGRADE_FILE"; then
    if [ ! -d "$NEW" ]; then
      mkdir -p "$NEW"
    fi

    UPGRADE_FILE_NAME=$(basename "$UPGRADE_FILE")
    UPGRADE_FILE_NAME_WITHOUT_EXTENSION="${UPGRADE_FILE_NAME%.*}"
    UPGRADE_FILE_EXTENSION="${UPGRADE_FILE_NAME##*.}"

    echo "Upgrading $ROM_FILE_NAME..."
    echo "... copying..."
    cp "$ROM_FILE" "$NEW/$ROM_FILE_NAME"
    echo "... extracting upgrade..."
    7z e "$UPGRADE_FILE" -o"$UPGRADES/$ROM_FILE_NAME_WITHOUT_EXTENSION" -y > /dev/null 2>&1
    echo "... cleaning extract..."
    find "$UPGRADES/$ROM_FILE_NAME_WITHOUT_EXTENSION" -type d -empty -delete
    echo "... adding files..."
    7z a "$NEW/$ROM_FILE_NAME" "$UPGRADES/$ROM_FILE_NAME_WITHOUT_EXTENSION/*" > /dev/null 2>&1
    echo "... cleaning up..."
    rm -rf "$UPGRADES/$ROM_FILE_NAME_WITHOUT_EXTENSION"
    echo "... complete."
    echo ""
  fi
done

echo "All done, updated roms can be found at `$NEW` 🍺"