[pob2-port] Speed up load times of exporter (#9404)

* Apply changes from PathOfBuildingCommunity/PathOfBuilding-PoE2#1638

* Fix merge conflict

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Co-authored-by: LocalIdentity <[email protected]>
Co-authored-by: LocalIdentity <[email protected]>

Author: 3 people

src/Export/Classes/GGPKData.lua

@@ -36,7 +36,7 @@ local GGPKClass = newClass("GGPKData", function(self, path, datPath, reExport)
 		self.oozPath = datPath:match("\\$") and datPath or (datPath .. "\\")
 	else
 		self.path = path
-		self.oozPath = io.popen("cd"):read('*l'):gsub('\r?', '') .. "\\ggpk\\"
+		self.oozPath = GetWorkDir() .. "\\ggpk\\"
 		self:CleanDir(reExport)
 		self:ExtractFiles(reExport)
 	end
@@ -125,14 +125,13 @@ function GGPKClass:ExtractList(listToExtract, cache, useRegex)
 end
 
 function GGPKClass:AddDat64Files()
-	local datFiles = scanDir(self.oozPath .. "Data\\", '%w+%.datc64$')
-	for _, f in ipairs(datFiles) do
+	local datFiles = self:GetNeededFiles()
+	for _, fname in ipairs(datFiles) do
 		local record = { }
-		record.name = f
-		local rawFile = io.open(self.oozPath .. "Data\\" .. f, 'rb')
+		record.name = fname:match("([^/\\]+)$") .. "c64"
+		local rawFile = io.open(self.oozPath .. fname:gsub("/", "\\") .. "c64", 'rb')
 		record.data = rawFile:read("*all")
 		rawFile:close()
-		--ConPrintf("FILENAME: %s", fname)
 		t_insert(self.dat, record)
 	end
 end