Environment variables

We strive for relying as little as possible on environment variables across nectarchain. However, some environment variables are needed for nectarchain to work properly, especially to automatically fetch run files from the grid via DIRAC, or to store output results and plots.

Mandatory

NECTARCAMDATA:

path to local NectarCAM data. It can contain fits.fz run files, WaveformsContainer or ChargesContainer HDF5 files. This is also where the findrun method will automatically store NectarCAM run files when fetched from DIRAC.

Optional

NECTARCHAIN_LOG:

path for output logs for nectarchain, generally defaulting to /tmp.

NECTARCHAIN_FIGURES:

path to store output figures for nectarchain, generally defaulting to /tmp, or configurable (see e.g. nectarchain.makers.component.spe.spe_algorithm.SPEalgorithm).