RetroAchievements Library Validator

This project aims to make the process of checking the validity of your ROMs for RetroAchievements a breeze. Just download the script or clone the repository, configure your variables, and get a report of which ROMs are valid for earning achievements. If you have any questions, please feel free to message me on Reddit under the same username.

Prerequisites

Before using the script, ensure you have the following prerequisites set up:

1. RAHasher:

   • Download RAHasher from RetroAchievement's GitHub.
   • Make note of the path to RAHasher.exe, as this will be needed in the script configuration.

2. RetroAchievements Account:

   • You need a RetroAchievements account and API key.
   • You can find or generate your API key by logging into RetroAchievements and navigating to the control panel: https://retroachievements.org/controlpanel.php.

3. PowerShell:

   • Ensure you are using PowerShell to run this script.

Setup

1. Clone the repository:

   git clone https://github.com/Siallus/RetroAchievementsLibraryValidator

2. Configure Script Variables:

   Open the script and set the following variables according to your system configuration:

   • $ROM_BASE_PATH: Path to the root folder containing your ROMs. Each system should have its own subfolder within this path.
   • $RAHASHER_PATH: Path to the RAHasher.exe program.
   • $HASH_OUTPUT_PATH: Path to the folder where the hash report will be exported.
   • $RA_USERNAME: Your RetroAchievements username.
   • $RA_API_KEY: Your RetroAchievements API key.

   Example:

   $ROM_BASE_PATH = 'C:\Games\ROMs'
   $RAHASHER_PATH = 'C:\Tools\RAHasher'
   $HASH_OUTPUT_PATH = 'C:\Games\HashReports'
   $RA_USERNAME = 'your_username'
   $RA_API_KEY = 'your_api_key'

3. Map System Folders:

   The $SYSTEM_TO_FOLDER_MAP hash table should match RetroAchievements system names to their respective subfolders under $ROM_BASE_PATH. If a system is not available, leave its value as an empty string. Here’s an example for a few systems:

   $SYSTEM_TO_FOLDER_MAP = @{
       'NES/Famicom' = 'NES'
       'SNES/Super Famicom' = 'SNES'
       'Game Boy' = 'GameBoy'
   }

Running the Script

Once everything is set up, you can run the script to hash your ROMs and generate a report.

1. Open PowerShell and navigate to the directory where the script is located.
2. Run the script:

   .\Get-RomHashes.ps1

The script will attempt to match each ROM file in your specified system folders with the RetroAchievements database. It will generate a CSV file at the specified $HASH_OUTPUT_PATH, detailing the results of each match, including game titles and achievement counts.

CSV Output

The resulting CSV report contains the following columns:

• MatchFound: Indicates whether a matching ROM was found in the RetroAchievements database.
• System: The system name (e.g., NES, SNES).
• RomName: The filename of the ROM.
• Hash: The calculated hash of the ROM file.
• Path: The folder path where the ROM is located.
• RATitle: The game title according to RetroAchievements.
• RAID: The RetroAchievements ID of the game.
• CheevoCount: The number of achievements for the game.

Notes

• PowerShell now warns the user of a script execution risk when running Invoke-WebRequest. The script only makes calls out to 2 RetroAchievements API endpoints, but one of these endpoints can be called numerous times depending on how many systems you have ROMs for.
• Ensure that your system folder names in $SYSTEM_TO_FOLDER_MAP match exactly with the corresponding subfolders in $ROM_BASE_PATH.
• The script uses RAHasher to generate hashes for ROMs. Ensure that RAHasher is correctly installed and accessible from the path specified in $RAHASHER_PATH.

Disclaimer

This script is a work in progress but is expected to function well into the future given the stability and longevity of the tools it utilizes, such as RAHasher and the RetroAchievements API.

Future Enhancements

• Add support for renaming ROMs to match the RetroAchievements standard.
• Add support for checking individual ROMs.
• Add additional error checking and handling.
• General cleanup.