Ethan Atkins 329d989e73 Use sbt source file stamps in zinc ... This fixes the nio/external-hooks test and also restores the performance of the benchmarks for the latest sbt version in https://github.com/eatkins/scala-build-watch-performance which had regressed when the custom ExternalHooks were disabled in 7c4b01d9f7. The main change is that it changes the ReadStamps object that is passed into the compiler options to one that uses the unmanagedFileStampCache and managedFileStampCache for source files and falls back to the default stamper otherwise. This improves the performance quite significantly since we only hash the files once. It also makes it so that the analysis file will contain the source file stamps of the files when compilation began, rather than when compilation ended. That is what nio/external-hooks was testing. In the real world what could happen was that one modified a source file during compilation but then no incremental re-compilation would occur because after the initial compilation completed, zinc wrote the stamp of the modified source file in the analysis file even though it may have actually compiled a different version of the source file.		2020-07-19 12:16:37 -07:00
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src	Use sbt source file stamps in zinc	2020-07-19 12:16:37 -07:00
NOTICE	Add, configure & enforce file headers	2017-10-05 09:03:40 +01:00