Installing Datasets

The Dataset Framework packages data in self-contained units that are intended to be easy to install for LSST Stack users. It is not necessary to install all datasets supported by ap_verify, only those you intend to use.

Prerequisites

The Dataset framework requires that the computer have version 13.0 or later of the LSST Stack (specifically, the obs packages and their dependencies) installed. Installing lsst_distrib is the simplest way to ensure all dependencies are satisfied.

The framework also requires Git LFS and the EUPS package management system. EUPS is included in the Stack installation.

Installation Procedure

Use Git LFS to clone the desired dataset’s GitHub repository. To get the URL, see the package documentation for the dataset in question.

Once the dataset has been installed, use eups declare to register the downloaded directory. The product name given to EUPS must match the repository name; the version can be anything. It is also possible to register the dataset using setup, but this is recommended only for temporary tests.

For example, to install the HiTS 2015 dataset,

$ git clone https://github.com/lsst/ap_verify_hits2015 mydata
$ eups declare -r mydata ap_verify_hits2015 v1

Once this is done, ap_verify will be able to find the HiTS data upon request.