isCondaEnabled: Scalar check to determine if Conda is active inside of the current R session. Evaluates
CONDA_SHLVLsystem environment variables internally.
isDockerEnabled: Scalar check to determine if Docker is installed and is actively running on the current machine.
isGitRepo: Vectorized checks for the existence of Git repositories. This is a little tricky to check inside of CI, so may need to think of a more clever approach for code coverage in the future.
validate: Improved cause return when attribute is set from internal
falseFromVectorcall. This was detected when
isSystemCommandwas not returning the expected program name in the assert call.
falseFromVector: Improved internal cause attribute handling for scalars.
nocov, for platform- and configuration- specific checks.