So I have a game that reads a permissions file. With out having to modify the game code(java based) I would like to have the permissions file that the game loads contain multiple base files in a specified order.

Basically I need it to contain in order: [header], [players], [groups], [world], [footer] as source files

I know this is possible from a basic CLI scripting standpoint, but is this possible from a file system standpoint so that any time the permissions file is read the file system automatically loads the base files into the combined permissions file in real time so the game is unaware.


PS. This will be for read only, and if needed I can always use overlay to have any writes goto a separate file which can be parsed to its separate base files and then removed via a script as writes would be un-common ( in terms of frequency ) but are formatted a specific way due to YAML

That's nice. I'd like Free Ice Cream.

Post the permissions file.

You need to explain what you mean by 'the permissions file that the game loads contain multiple base files'. Files do not contain other files.
If I guess correctly, your intention is to modify some file(s) at runtime (based on something unspecified). The only solution I can envision for this is to code up a virtual filesystem that your game can use to read files from. The virtual filesystem (based on fuse) is then capable of providing file content based on whatever circumstance your code can determine. It can be essentially a wedge between the real filesystem, and your game application.

--- rod.

It seems to me that asking the underlying system to do something that really should be handled by the application is the wrong way to be thinking about it.

I agree, but from the wording of the question 'I have a game...', I doubt it is within the control of the OP to make any changes at the application level. Sometimes you just have to find a more creative solution. The word 'workaround' was coined for a reason.

--- rod.