A set of Python applications run by a Cylc suite using a shared environment in tasks. This script installs the environment in the suite.

install-condaenv

#!/bin/bash
#------------------------------------------------------------------------------
# This script is used by a Python project that is also a Cylc suite.
# An initial task in the suite runs this script to build and install the Python
# project and its environment in a self-contained Conda environment under
# `~/cylc-run/SUITE/share/condaenv/`.
# Subsequent tasks activates this environnment using:
#     set +u
#     . "${USER_CONDA_PROFILE}"
#     conda activate "${SUITE_CONDA_ENV}"
#     set -u
# ------------------------------------------------------------------------------
# Note: "conda" does not work with "set -u"
set -eo pipefail
SUITE_CONDA_ENV="${1:-${CYLC_SUITE_SHARE_DIR}/condaenv}"

# Gain access to the "conda" command.
. "${USER_CONDA_PROFILE:-${HOME}/miniconda3/etc/profile.d/conda.sh}"

# Create or update Conda environment. Activate it.
if conda activate "${SUITE_CONDA_ENV}"; then
    conda env update \
        --prune \
        -p "${SUITE_CONDA_ENV}" \
        -f "${CYLC_SUITE_RUN_DIR}/environment.yml"
    pip uninstall -y 'stf' || true
else
    conda env create \
        --force \
        -p "${SUITE_CONDA_ENV}" \
        -f "${CYLC_SUITE_RUN_DIR}/environment.yml"
    conda activate "${SUITE_CONDA_ENV}"
fi

# Install project to Conda environment
set -u
pushd "${CYLC_SUITE_RUN_DIR}"
python3 "./setup.py" 'install'
popd

exit