- New UBT support for "adaptive unity builds", which can greatly increase iterative compile times
- This feature allows UBT to keep track of which source files you're currently editing between runs
- UBT will exclude your "working set" source files from all unity blob files, allowing for fast iterative compiles!
- Currently, adaptive unity builds relies on files being writable vs. read-only to determine what you're working on (P4 edit)
- Enable this new feature in your BuildConfiguration.xml file.
<BuildConfiguration>
<bUseAdaptiveUnityBuild>true</bUseAdaptiveUnityBuild>
</BuildConfiguration>
[CL 2671467 by Mike Fricker in Main branch]
add -verbose=Level argument to be able to specify the verbosity level of logging, defaults to Log
#codereview ben.marsh, robert.manuszewski, paul.fazio
[CL 2654467 by Peter Sauerbrei in Main branch]
Explicit serialization functions used instead of reflection, to avoid deserialization problems on Mono.
Version number added to makefiles to allow versioning in future.
Makefiles still disabled if the host platform differs from the built platform, to continue to avoid any problems 'when building with RPCUtility'.
#codereview robert.manuszewski,michael.trepka
[CL 2643502 by Steve Robb in Main branch]
- Move UnrealCodeAnalyzer to Programs/UnrealCodeAnalyzer
- Move clang/llvm binaries and includes to ThirdParty/llvm
#codereview Robert.Manuszewski
[CL 2613304 by Mikolaj Sieluzycki in Main branch]
* Allows us to use built-in Trace providers (console, file, etc) directly and still use our custom formatting.
* Fat comments explaining why Trace.WriteXXX functions should not be used directly in our system.
* Fixes thread safety by using Trace.WriteXXX under the hood after formatting, which uses a global lock (except on Mono, where a bug appears to be preventing this. Simulating the call on that platform).
* No need for TraceEvent overloads, which saves us the extra parameter cruft.
* Removed non-varargs overloads of Log functions (technically a bit slower, but these are already small messages).
* No longer needed VerbosityFilter and ConsoleListener classes.
* Avoid calling GetSource() if we aren't outputting the source.
* Avoid formatting the string if it won't pass the verbosity level.
* Consolidated all of UAT and UBT options into this class, so they could fully share the implementation.
UBT BuildConfiguration.cs
* Added LogFilename (and --log=<file> arg) that enables logging to a file.
* Added static ctor guard that asserts if someone tries to read a config before we have loaded config files and parsed config-override commandlines. It's a poor man's hack, but better than nothing!
UBT UEBuildConfiguration.cs
* Same static ctor guard as above.
UBT UnrealBuildTools.cs (initialization refactoring)
* In general I tried to de-mystify some of the rationale behind our startup code via fat comments.
* Broke main into 3 stages:
1. "early code" that should not try to read a config value.
* Very little code here. Mostly setting the current directory.
* Does an early init of logging to ensure logging is around, but config values won't be ready.
2. "Init Configuration code" that loads config files and parses command lines that may override them.
* I isolated two locations in startup that parsed long sets of switches and moved ones that trivially affected BuildConfiguration and UEBuildConfiguration in here. Those two locations seemed to have mostly copies of the same switches, indicating serious param parsing issues at some point in time.
* This allows switches to override config files more easily than the patchwork of re-parsing that was currently used (particularly for -verbose).
* I did a cursory examination of later code that indicated this double (actually, triple) parsing was no longer necessary with the refactors above. Any insight into why things may have ended up this way would be helpful.
3. "Post Init code" that is actually the meat of UBT.
* I left this code largely untouched.
* Removed 2 of 3 different command line logging statements.
* Removed two redundant parses of config overrides (ParseBuildConfigurationFlags).
* Guarded all of main in a try/catch block to ensure no exceptions can leak from UBT without returning a valid error code. It ALMOST already did this, but only covered the part surrounded by the Mutex.
* There was a perplexing bit that redundantly called XmlConfigLoader.Reset<> (line 683) that I struggled to understand. It turns out UEBuildConfiguration was sensitive to the current directory being set before files were loaded, and the old code called XmlConfigLoader.Init() super early, which required it to be called again after the current directory was set (see UEBuldConfiguration.UEThirdPartySourceDirectory for the cause). After my changes, I verified as best I could that these calls are no longer needed and removed them.
XmlConfigLoader.cs
* Add support for Properties in XmlConfigLoader.
AutomationTool Program.cs
* Guard logging shutdown code in try/finally so it can't be missed.
AutomationTool Log.cs
* Uses new logging system from UBT
* Removed unnecessary classes (VerbosityFilter, AutomationConsoleTraceListener, and AutomationFileTraceListener)
* Console trace logic is handled by UBT code now, moved UTF8Output handling to InitLogging.
* A custom TraceListener for file logging was unnecessary.
* Logic to handle creating the log file and retry loops was move into InitLogging, and the result passed to a regular TextFileTraceListener.
* Logic to handle copying the log on shutdown was moved to a ShutdownLogging function.
#codereview:robert.manuszewski,michael.trepka,kellan.carr
[CL 2526245 by Wes Hunt in Main branch]
- Fast UnrealBuildTool startup and dependency checking
- Preflighted, but needs wider testing and debugging. More info to come soon.
#codereview michael.trepka
[CL 2401108 by Mike Fricker in Main branch]
- Collapsed and renamed some of the new UBT settings for fast build iteration
- New 'BuildConfiguration.bUseUBTMakefiles' that replaces the old experimental settings (defaults to off in this changelist.)
- Cleaned up some comments
- No effective changes
[CL 2400071 by Mike Fricker in Main branch]
- Fixed .ini parsing of bools to allow for True, true, TRUE, etc.
#codereview Robert.Manuszewski,niklas.smedberg
[CL 2284471 by Josh Adams in Main branch]
