cmake_common.lua

local p         = premake
local project   = p.project
local workspace = p.workspace
local tree      = p.tree
local cmake     = p.extensions.cmake
cmake.common    = {}
local m         = cmake.common

m.cppStandards = {
	["C++98"]   = "98",
	["C++11"]   = "11",
	["C++14"]   = "14",
	["C++17"]   = "17",
	["C++20"]   = "20",
	["C++2a"]   = "20",
	["gnu++98"] = "98",
	["gnu++11"] = "11",
	["gnu++14"] = "14",
	["gnu++17"] = "17",
	["gnu++20"] = "20"
}

m.compileasLangs = {
	["C"]               = "C",
	["C++"]             = "CXX",
	["Objective-C"]     = "OBJC",
	["Objective-C++"]   = "OBJCXX"
}

function m.configName(config, includePlatform)
	if includePlatform then
		return config.platform .. "-" .. config.buildcfg
	else
		return config.buildcfg
	end
end

function m.getCompiler(cfg)
	local default = iif(cfg.system == p.WINDOWS, "msc", "clang")
	local toolset = p.tools[_OPTIONS.cc or cfg.toolset or default]
	if not toolset then
		error("Invalid toolset '" .. (_OPTIONS.cc or cfg.toolset) .. "'")
	end
	return toolset
end

function m.fixSingleQuotes(command)
	if type(command) == "table" then
		local result = {}
		for k, v in pairs(command) do
			result[k] = v:gsub("\\ ", " "):gsub("'(.-)'", "\"%1\"")
		end
		return result
	else
		return command:gsub("\\ ", " "):gsub("'(.-)'", "\"%1\"")
	end
end

function m.escapeStrings(str)
	return str:gsub("\"", "\\\"")
end

function m.isFramework(lib)
	return path.getextension(lib) == ".framework"
end

function m.getFrameworkName(framework)
	return framework:sub(1, string.find(framework, "%.") - 1)
end

---
-- Debugging
---

m.timers = {}

function m.createTimer(functionName, args)
	if _OPTIONS["verbose"] then
		local timer = {
			functionName = functionName,
			args         = args,
			startTime    = os.clock(),
			stopTime     = nil
		}

		if not m.timers[timer.functionName] then m.timers[timer.functionName] = { total = 0.0 } end

		timer.stop = function()
			timer.stopTime = os.clock()
			local delta = timer.stopTime - timer.startTime
			m.timers[timer.functionName].total = m.timers[timer.functionName].total + delta
			if timer.args then
				printf("%s(%s) (%.4f -> %.4f): %.4f", timer.functionName, table.concat(timer.args, ", "), timer.startTime, timer.stopTime, delta)
			end
		end

		return timer
	else
		local timer = {
			functionName = functionName,
			args         = args,
			startTime    = 0.0,
			endTime      = nil
		}
		timer.stop = function()
			timer.endTime = 0.0
		end
		return timer
	end
end

function m.printTimers()
	for k, v in pairs(m.timers) do
		printf("%s %.4f", k, v.total)
	end
end