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|
--
-- globals.lua
-- Global tables and variables, replacements and extensions to Lua's global functions.
-- Copyright (c) 2002-2009 Jason Perkins and the Premake project
--
-- A top-level namespace for support functions
premake = { }
-- The list of supported platforms; also update list in cmdline.lua
premake.platforms =
{
Native =
{
cfgsuffix = "",
},
x32 =
{
cfgsuffix = "32",
},
x64 =
{
cfgsuffix = "64",
},
Universal =
{
cfgsuffix = "univ",
},
Universal32 =
{
cfgsuffix = "univ32",
},
Universal64 =
{
cfgsuffix = "univ64",
},
PS3 =
{
cfgsuffix = "ps3",
iscrosscompiler = true,
nosharedlibs = true,
namestyle = "PS3",
},
WiiDev =
{
cfgsuffix = "wii",
iscrosscompiler = true,
namestyle = "PS3",
},
Xbox360 =
{
cfgsuffix = "xbox360",
iscrosscompiler = true,
namestyle = "windows",
},
}
--
-- A replacement for Lua's built-in dofile() function, this one sets the
-- current working directory to the script's location, enabling script-relative
-- referencing of other files and resources.
--
local builtin_dofile = dofile
function dofile(fname)
-- remember the current working directory and file; I'll restore it shortly
local oldcwd = os.getcwd()
local oldfile = _SCRIPT
-- if the file doesn't exist, check the search path
if (not os.isfile(fname)) then
local path = os.pathsearch(fname, _OPTIONS["scripts"], os.getenv("PREMAKE_PATH"))
if (path) then
fname = path.."/"..fname
end
end
-- use the absolute path to the script file, to avoid any file name
-- ambiguity if an error should arise
_SCRIPT = path.getabsolute(fname)
-- switch the working directory to the new script location
local newcwd = path.getdirectory(_SCRIPT)
os.chdir(newcwd)
-- run the chunk. How can I catch variable return values?
local a, b, c, d, e, f = builtin_dofile(_SCRIPT)
-- restore the previous working directory when done
_SCRIPT = oldfile
os.chdir(oldcwd)
return a, b, c, d, e, f
end
--
-- "Immediate If" - returns one of the two values depending on the value of expr.
--
function iif(expr, trueval, falseval)
if (expr) then
return trueval
else
return falseval
end
end
--
-- A shortcut for including another "premake4.lua" file, often used for projects.
--
function include(fname)
return dofile(fname .. "/premake4.lua")
end
--
-- A shortcut for printing formatted output.
--
function printf(msg, ...)
print(string.format(msg, unpack(arg)))
end
--
-- An extension to type() to identify project object types by reading the
-- "__type" field from the metatable.
--
local builtin_type = type
function type(t)
local mt = getmetatable(t)
if (mt) then
if (mt.__type) then
return mt.__type
end
end
return builtin_type(t)
end
|
