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Re: Add-on Lua code for file system operations?
From: Hadriel Kaplan <hadriel.kaplan () oracle com>
Date: Sun, 9 Feb 2014 03:25:44 -0500


On Feb 8, 2014, at 8:36 PM, Tony Trinh <tony19 () gmail com> wrote:

Hadrial Kaplan wrote:
 
The problem is if you write a plugin for others to use, requiring them to compile code is a high bar to expect.  So 
if it's more than just another pure lua lib which doesn't need c-code to be compiled, as a file/dir accessor would 
need, it's tough. :(

I agree (?)... or perhaps I'm not following. ;)

Sorry I was using a phone to email. :)

I meant that if I write a Lua plugin for wireshark and want other normal users to be able to use my plugin, then 
expecting those users to compile C-code is a high barrier to entry.  Since file handling functions require C-code to be 
compiled, and can't be done in a pure Lua-library alone, it might make sense to have wireshark offer them... not all 
such functions, just a few more simple ones like mkdir/remove, and probably only them.


I *think* Guy was proposing the Wireshark Lua API included the LuaFileSystem library (or a wrapper around it) out of 
the box, which is something already done with Lua BitOp [1][2], so users wouldn't have to explicitly compile it 
themselves. Or were you referring to something else?

Yeah, that kind of idea - although I would vote for his second option: not to use/wrap LuaFileSystem, and instead just 
expose the existing ws_mkdir/ws_remove functions.

-hadriel

p.s. Penlight uses LuaFileSystem for file/dir operations, I believe. It has a hard dependency on it for those modules, 
afaik.

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