Package assemblies are being rebuilt when they should not need to

[markfinal]

Take Test3 as an example (quite random).

Build

bam -b=Native -c

several times. Note that it always recompiles the assembly.

A quick investigation on Windows (and OSX) shows that the build/CachedPackageAssembly folder, although written to, no longer exists after the end of the build.

However, when run through a debugger, the folder exists, with all the expected files inside (the assembly, and the hash file).

Seems like someone is deleting the folder.

[markfinal]

Well obviously, this is a bit of nonsense, because the -c will always delete the build folder.

What seems to be happening is that the build root deletion is happening AFTER package compilation, so the assembly/hash is written to disk, loaded, and then deleted, and it no longer appears on disk after the build starts.

The fix is to move the build root deletion to before package compilation.