met2go

A conda recipe for MET and select METplus components.

Quick Start

To create a met2go virtual environment, activate your conda (Miniforge recommended), then:

conda create -n met2go -c paul.madden met2go
conda activate met2go

With the met2go environment activated, the path to MET (e.g. grid_stat) and METplus (e.g. run_metplus.py) executables is prepended to PATH, and the following environment variables are exported:

• METPLUS_PARM_BASE: A directory containing^* the contents of the parm/ directory from the METplus distribution.
• MET_DATA: A directory containing various runtime data from the MET distribution.
• MET_PYTHON_EXE: The path to the Python interpreter to be used by MET.

* The METPLUS_PARM_BASE directory does not exist immediately after met2go is installed. To create and populate it, run met2go-data in the activated met2go environment. This requires write permissions on the conda-environment directory under which met2go is installed.

In addition, the following scripts are available as executables on PATH:

• From METdataio: write_stat_ascii.py
• From METplotpy: line.py

Development

Build

To build a package and optionally upload to your own anaconda.org channel:

1. Clone this repo on an aarch64 or x86_64 Linux system. The built package will match the system architecture.
2. Run ./build, which will by default upload the package to anaconda.org. To disable upload, run ANACONDA_UPLOAD=no ./build.
3. If prompted, enter your anaconda.org credentials for package upload.
4. When finished, you may remove the conda directory created by build to reclaim disk space. But if you disabled package upload in step 2 above and want to create a virtual environment based on the local package, retain the conda directory.

Install

To create a met2go virtual environment based on a package uploaded to your own anaconda.org channel, activate your conda (Miniforge recommended), then:

conda create -n met2go -c <channel> met2go[=version]

Set <channel> to the name of the channel corresponding to the credentials you supplied during the build.

To create a met2go virtual environment based on the locally built package:

. conda/etc/profile.d/conda.sh
conda create -n met2go -c local met2go[=version]

In either case, you may optionally provide desired version information; otherwise, conda will install the latest available version.

Activate the environment:

conda activate met2go