replace filesystem code with PhysicsFS (physfs)

[Sigra]

Replace the homemade filesystem code with PhysicsFS (physfs). Then we would have less code to maintain. PhysicsFS can handle 7z-files, a format that is superior to zip-files. Discussed here:
[https://sourceforge.net/mailarchive/message.php?msg_id=200607231739.05059.Florian.Weber%40pfaffenhofen.de] (here a patch was already promised)
[https://sourceforge.net/mailarchive/message.php?msg_id=4807A388.5060700%40home.se]

If it is found that PhysicsFS lacks a feature that Widelands needs, please post a feature request to PhysicsFS (at [https://bugzilla.icculus.org/]) and post a link to it here.

[dwarik (dwarik)]

does physfs support zip writing these days? i think that was the reason it wasn't included earlier

[Sigra (sigra)]

> does physfs support zip writing these days? i think that was the reason it wasn't included earlier

From http://icculus.org/physfs/:
"The programmer defines a "write directory" on the physical filesystem. No file writing done through the PhysicsFS API can leave that write directory, for security."

[Nasenbaer (nasenbaer)]

I set this to incomplete, as:
1) no work was done until now on this
2) our current system works quite fine
3) I don't see a reason for adding even one more dependecy for Widelands

4 and most important) if one wants to implement this feature, we first need a valid blueprint how physfs would improve Widelands and how to add these improvements.

[Launchpad Janitor (janitor)]

[Expired for widelands because there has been no activity for 60 days.]

[SirVer (sirver)]

We recently had a security bug because our implementation can write anywhere on the file system. I am currently all for the physicsfs library, but I haven't checked it out.

[Launchpad Janitor (janitor)]

[Expired for widelands because there has been no activity for 60 days.]