Easy way of renaming Arcade roms?

dudleydes

@MikeLang Then scraping is the answer.

It is possible to scrape roms on a PC. You can then copy over the gamelist.xml, leaving the images on your PC.

For example, you can download a binary for your PC's OS for Steven Selph's Scraper from https://github.com/sselph/scraper/releases/tag/v1.4.6.

MikeLang

@dudleydes

That looks like exactly the kind of thing I am after but unfortunately it's all a bit too complicated for me to grasp. I downloaded scraper_windows_386, extracted it into a folder where there is an application called scraper but don't know how to proceed.

dudleydes

@MikeLang You need to run the app from the Command Prompt - the Wiki has examples.

The scraper_windows_386.zip is for 32-bit (older) systems. If you have a modern computer, then you will likely need the 64-bit version, scraper_windows_amd64.zip.

You may want to take a look at the Universal XML scraper which uses a GUI instead of the command line. There are videos on YouTube on how to use the scraper.

Here is the thread: https://retropie.org.uk/forum/topic/5291/soft-universal-xml-scraper-v2-easy-scrape-with-high-quality-picture.

MikeLang

@dudleydes

Still not really getting how to do this. This is what I am doing, create folder called 'arcade' on c:

Copy 20 roms into 'arcade' folder. Copy scraper.exe to 'arcade' folder and then run in command prompt.

Get message 'It appears that thegamesdb isn't set up.'

dudleydes

@MikeLang You can try a source other TheGamesDB - Screenscraper.fr is probably considered best. Selph's scraper also needs to be run in MAME mode.

Try the command: scraper -mame -mame_src ss

[EDIT: changed -console-src to -mame-src]

MikeLang

@dudleydes

I typed 'scraper -mame -mame_src ss' in command prompt, just get a lot of text:

'flag provided but not defined: -mame_scr'
'-workers N'
'use N worker threads to process roms. (default 1)'

Clyde

@MikeLang said in Easy way of renaming Arcade roms?:

'flag provided but not defined: -mame_scr'

You said you entered -mame_src, yet the error says that you entered -mame_scr (which would be wrong). Which one is the typo?

MikeLang

@Clyde

Yep, that's what I've done, typed it wrong. It's working now but the gamelist.xml it generates has a synopsis of the game. I only want these bits:

<game>
<path>./Gamename.zip</path>
<name>Game Name</name>
</game>

If that is possible. Really appreciating all the help.

dudleydes

EDIT: Ignore - please see @mitu's suggestion below.

@MikeLang You can use the sed command. This is a Linux command so it will have to be done on your Pi. I recommend that you use SSH so that the command can copied and pasted.

First, use cd to change the directory to the one containing your gamelist.xml file, then run:

sed '/<desc>\|<image>\|<rating>\|<releasedate>\|<developer>\|<publisher>\|<genre>\|<players>/d' gamelist.xml

This command will output to the terminal what the amended version of gamelist.xml will look like.

If you're happy, then you can run the command below to commit the changes. This will overwrite your gamelist.xml file so good idea to keep a copy of the the original.

sed -i '/<desc>\|<image>\|<rating>\|<releasedate>\|<developer>\|<publisher>\|<genre>\|<players>/d' gamelist.xml

The only concern is when the <desc> entry runs for more than one paragraph. The sed will not catch the second and subsequent paragraphs. There's probably a way to include these but I don't know of any.

Extra paragraphs will make the XML file invalid as it will have unmatched tags and ES may not load. The extra paragraphs can be manually deleted in a text editor searching for </desc> string.

mitu

@dudleydes It's easier with xmlstarlet:

xmlstarlet ed -d '//game/desc' gamelist.xml

will delete all desc child nodes of the game node. Repeat for any other tag you'd like removed (favorite/image/video/etc.).

MikeLang

@dudleydes said in Easy way of renaming Arcade roms?:

First, use cd to change the directory to the one containing your gamelist.xml file, then run:

Already stuck, running putty, don't know how to change directory from 'pi@retropie:/ $' to:

\RETROPIE\configs\all\emulationstation\gamelists\arcade\gamelist

dudleydes

@mitu Thank you.

The command below will give a preview of amended gamelist.xml:

xmlstarlet ed -d '//game/desc | //game/image | //game/releasedate | //game/rating  | //game/developer  | //game/publisher | //game/genre  | //game/players' gamelist.xml

To write changes, add --inplace as below:

xmlstarlet ed --inplace -d '//game/desc | //game/image | //game/releasedate | //game/rating  | //game/developer  | //game/publisher | //game/genre  | //game/players' gamelist.xml

dudleydes

@MikeLang Try

cd /opt/retropie/configs/all/emulationstation/gamelists/arcade

After this command, run ls to check gamelist.xml is there.

Clyde

@MikeLang said in Easy way of renaming Arcade roms?:

Already stuck, running putty, don't know how to change directory from 'pi@retropie:/ $' to:

\RETROPIE\configs\all\emulationstation\gamelists\arcade\gamelist

Just an addition to @dudleydes' post: Windows uses backslashes (\) as directory dividers. The official Retropie image is running on Linux, which uses slashes as directory dividers (/).

MikeLang

@dudleydes said in Easy way of renaming Arcade roms?:

@mitu Thank you.

The command below will give a preview of amended gamelist.xml:
xmlstarlet ed -d '//game/desc | //game/image | //game/releasedate | //game/rating  | //game/developer  | //game/publisher | //game/genre  | //game/players' gamelist.xml

That's not giving me a full preview of gamelist, I'm getting something like this:

gamelist.xml:1697.16: xmlParseEntityRef: no name
<name>Game name</name>
^
gamelist.xml:1889.17: xmlParseEntityRef: no name
<name>Game name 2</name>
^

mitu

@MikeLang You'll have to be more specific, maybe you can upload your final gamelist.xml somewhere so we can check.

MikeLang

I know why I was getting that weird error now, it was related to having '&' in the name of a game. My example didn't help matters seeing as I didn't type '&'.

The list it generates still doesn't have the games I haven't picked, for example say the arcade rom folder has 300 games and the gamelist.xml file lists 200 roms. There's still 100 games that I have to manually pick in order for them to appear in the gamelist.xml file.

Thanks for all the help everyone I've learned a great deal from all your input.