Perforce API for Lua

[Joshua Jensen <jjensen@...>]

A while back, someone provided me with P4Lua, obviously based on the 
same code P4Ruby, P4Perl, and P4Python come from.  I upgraded it to the 
latest P4API and fixed a couple bugs, but I can't determine anymore 
where the code came from to submit the patches.  If you are the author, 
contact me.

As an aside, since this doesn't appear to be available anywhere and the 
license allows me to do so, I'm making it publicly available from 
svn://svn.luaplus.org/LuaPlus/work51/Src/Modules/p4.  There is a docs/ 
directory with full documentation.

It contains all the functionality in P4Ruby/P4Perl/P4Python with a few 
extra tidbits.  For instance, there is a p4.keepalive function that lets 
you abort an in-progress Perforce command.  There is also a 
p4.retrieve_gui_connections() function that analyzes the P4V settings 
and gives you back a list of the connections P4V has used.  One of my 
favorites is the single table argument version of p4:run(); it allows 
specification of callbacks for OutputText, OutputWarning, and 
OutputError so you can give the user real-time feedback on the API 
operation.  In P4Ruby/P4Perl/P4Python, the operation is silent and 
blocking until it is finished.

Josh