RepositoryCleanOptions enum

Run git clean -fdx && git reset --hard or Tf /scorch on $(build.sourcesDirectory)

Run git clean -fdx && git reset --hard or Tf /scorch on $(build.sourcesDirectory), also re-create $(build.binariesDirectory)

Re-create $(build.sourcesDirectory)

Re-create $(agnet.buildDirectory) which contains $(build.sourcesDirectory), $(build.binariesDirectory) and any folders that left from previous build.