More ConfigNode perf (#90)

* Rewrite more of ConfigNode. Avoid all recursion when reading from disk. Add further optimization around specific use cases (craft, sfs, cache loading). Add blacklist support (assumes all values are sane unless otherwise informed).

* Try with MemoryMappedFile

* Read to a char array, more inlining and optimizing

This is better than it was, but in some cases the old version outperforms it.

Fix some further parser issues, switch to new method of reading files

Remove unused code from parser

* Remove confignodeperf settings blocks, upodate readme

* ConfigNodePerf: Patch copy, tostring, and parse as well. Refactor parse method so it can be used for either file or string case.

* Allow not writing indents when saving nodes.

* Found another copypasta issue with Santiize...

* Rewrite ReadObject/WriteObject and associated code. Works fine in test but crashes my live game...

* Add KSPAssembly attribute

* Fixed exception when single field is specified more than once due to cfg error

* Fix not saving nodes for objects/components when writing, cache fieldless objects to prevent recreating them when Persistent is applied wrongly

* Fix fallback decoding for ReadFile

* Don't double translate on load fail. Use a static stringbuilder, and reflect to clear previous chunks.

* Further expand on notes in readme, clean up last bits prior to merge. Force sanitize off in the UpgradePipeline patch.

GameData/KSPCommunityFixes/Settings.cfg

@@ -287,17 +287,10 @@ KSP_COMMUNITY_FIXES
   // and every time you delete a vessel in the Tracking Station
   FewerSaves = false
 
-  // These settings will make ConfigNode's loader not bother doing
-  // Extended checking during parsing for keys named ths
-  CONFIGNODE_PERF_SKIP_PROCESSING_KEYS
-  {
-    item = serialized_plugin
-  }
-  // or for keys that start with this.
-  CONFIGNODE_PERF_SKIP_PROCESSING_SUBSTRINGS
-  {
-    item = **skipProc**
-  }
+  // This tweak will skip writing indents when saving craft files and
+  // savegames (sfs files). This will speed up writing (and slightly
+  // speed up reading) at the cost of human readability.
+  SkipIndentsOnSavesAndCraftFiles = false
 
   // ##########################
   // Modding

KSPCommunityFixes/KSPCommunityFixes.csproj

@@ -26,6 +26,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>portable</DebugType>

KSPCommunityFixes/Modding/ModUpgradePipeline.cs

@@ -171,10 +171,13 @@ private static Version GetVersion(Assembly asm)
 
         private static void AddVersions(ConfigNode node, LoadContext loadContext)
         {
-            if(loadContext == LoadContext.SFS)
+            var oldDoClean = Performance.ConfigNodePerf._doClean;
+            Performance.ConfigNodePerf._doClean = false;
+            if (loadContext == LoadContext.SFS)
                 node.GetNode("GAME").SetValue("_modVersions", _versionString, true);
             else
                 node.SetValue("_modVersions", _versionString, true);
+            Performance.ConfigNodePerf._doClean = oldDoClean;
         }
 
         private static void ShipConstruct_SaveShip_Postfix(ref ConfigNode __result)