- Adds experimental super-fast C++ outdated file checking
- This feature is turned off for now as we continue to test and improve it
- You can try it out by enabling "bUseExperimentalFastDependencyScan" option in your BuildConfiguration.xml
- Here is the basic idea:
- We no longer exhaustively scan all includes and build up a big graph every invocation
- Instead, source files whose build products are missing have their includes scanned asynchronously while being compiled
- The flat list of dependent includes for every outdated C++ is saved into a new cache file ("FlatCPPIncludes.bin")
- On the next run, we quickly load that up and "just know" which files to check timestamps on to determine what is out of date
- Lots of "@todo fastubt" comments were added to UnrealBuildTool for potential performance optimizations and further improvements on this feature.
UnrealBuildTool: Determination of which modules have UObjects is now faster
- We now cache which modules have UObjects and load those for the next session
UnrealBuildTool: Module "shared" precompiled header determination is now much faster
- We no longer scan all C++ includes for a module to figure out which "shared" PCH to use
- Instead, we use the module dependencies specified in the module's *.Build.cs file
- For example, if your module depends on "Engine" and "UnrealEd", we choose "UnrealEd"'s shared PCH
Other UBT optimizations:
- Reduced calls to string formatting functions when setting up API definitions for all modules
- Added new performance diagnostics when bPrintPerformanceInfo is enabled in BuildConfiguration.xml
- We no longer check for "external" headers when scanning includes (this code didn't work at all)
- Optimized CleanDirectorySeparators() utility function to avoid string copies
Fixed UnrealBuildTool not saving DependencyCache under a platform-named folder
[CL 2238266 by Mike Fricker in Main branch]
- Integrated IPhonePackager code directly into IOS Automation (this is not 100% working yet, it's a work-in-progress). Original IPP still in same place untouched
- Added a return code to RunLocalProcess
- Added IPhonePackager UAT script that will pass along params to the internal IPP code (RunUAT IPhonePackager -cmd="<ipp commandline here>" [-nocompile])
#codereview Robert.Manuszewski,peter.sauerbrei
[CL 2123325 by Josh Adams in Main branch]
* Created RocketPeriodicClean command (use -SimulateCDN and/or -Preview for testing locally)
* repairs inconsistencies in the BI service
* Recovers manifests from P that are not found on the CDN
* Ensures labeled builds on Prod are labeled on GameDev
* removes orphaned BuildInfos
* removes unlabeled BuildInfos
* Deletes any manifests that are not referenced after the previous steps.
* Deletes any labels that are not used after the previous steps.
Added Compactify script
* Created unified Compactify command (use -SimulateCDN and/or -Preview for testing locally)
* Supports Rocket and Launcher
* Compactifies all associated CloudDirs on all the associated CDNs
* Can specify a subset of CDNs using -CDNLocations=XXX,YYY
* Tweaked existing compactify script to use EnumerateFiles and only walk the file list once.
* This should increase the speed of compactify as we don't have to walk millions of chunks more than once.
MCPBuildDelivery Changes:
* Added ToString() overloads for McpBuildInfo and McpLabel
* GetAppLabelNames() and GetAppNames() changes
* Flattened result instead of returning dictionaries.
* Support NULL for AppName to return all Apps.
* Added DeleteLabel() functionality.
* Added CDNLocation and BuildInfoLocation enums to allow programmatic, strongly-typed select of these environments.
* Used heavily by the cleanup scripts to abstract the operations it performs on all environments.
* Added conversion functions to go between McpConfigName and these enums.
* Added MountCDNShare(CDNLocation) that allows us to abstract access to the 3 fileshares we use to host chunks.
* Assert if called on Mac as we can't mount them there yet.
* Added CopyChunksToCDN(SrcCDN, DestCDN) that abstracts transporting chunks from one fileshare to another.
* Removed legacy support for -CDNDrive cmdline override, as it no longer makes sense globally now.
UBT Changes
* Added HashCodeHelper (from C# MCP) which assists creating IComparable<> implementations with reasonable GetHashCode() implementations.
FortBuild Changes
* Removed several MCP-related commands that are outdated and should no longer be in the code.
#codereview:eric.newman,gil.gribb,robert.manuszewski,carlos.cuello
[CL 2081078 by Wes Hunt in Main branch]
#add Utils.CollapseRelativeDirectories function, translated from FPaths.
#change MacPath now uses CollapseRelativeDirectories instead of GetFullPath.
#codereview robert.manuszewski
[CL 2062367 by Steve Robb in Main branch]
