cenv¶
Tool to create / update conda environments from meta.yaml
.
Due to the redundant dependency information inside the meta.yaml
(required
to create the conda-package) and the environment.yml
(as definition file
for the conda-environment during development and for production), cenv
(short form for conda-env-manager
) was created to make the meta.yaml
the only relevant file and to create and update conda-environment from the
definition inside this meta.yaml
.
The name of the conda-environment to create / update is defined in the section
extra:cenv
and the variable env_name
inside the meta.yaml
(at
conda-build/meta.yaml
).
The python version must be defined in extra:cenv
inside the key python
.
The steps run by cenv:
creation of a backup if the environment already exists followed by the removal of the previous environment.
creation of the environment as defined in the
meta.yaml
. If any failures occurred during creation and the backup was created, the command to reset the backup-version can be used.if enabled in the config file the environment.yml is exported after creation / update of the environment.
The usage of cenv reduces the conda commands to use to the following:
conda activate ...
to activate the environment
conda deactivate
to deactivate an environment
conda info
to show information about the currently activated environment
conda search ...
to search for availability of a package in the conda channels.
conda remove -n ... --all
to remove an environment
cenv
to create / update an environment