nsidc-metgen

nsidc-metgen enables data producers as well as Operations staff managing the data ingest workflow to create metadata files conforming to NASA's Common Metadata Repository UMM-G specification."

Level of Support

This repository is fully supported by NSIDC. If you discover any problems or bugs, please submit an Issue. If you would like to contribute to this repository, you may fork the repository and submit a pull request.

See the LICENSE for details on permissions and warranties. Please contact nsidc@nsidc.org for more information.

Requirements

To use the nsidc-metgen command-line tool, instameta, you must first have Python version 3.12 installed. To determine the version of Python you have, run this at the command-line:

$ python --version

or

$ python3 --version

Next, install Poetry by using the official installer if you’re comfortable with the instructions, or by installing it using a package manager (like Homebrew) if this is more familiar to you. When successfully installed, you should be able to run:

$ poetry --version
Poetry (version 1.8.3)

Installation

Make a local directory (i.e., on your computer), and then cd into that directory. Clone the granule-metgen repository using ssh if you have added ssh keys to your GitHub account or https if you have not:

$ mkdir -p ~/my-projects; cd ~/my-projects
# Install using ssh:
$ git clone git@github.com:nsidc/granule-metgen.git
# Install using https:
$ git clone https://github.com/nsidc/granule-metgen.git

Enter the granule-metgen directory and run Poetry to have it install the granule-metgen dependencies. Then start a new shell in which you can run the tool:

$ cd granule-metgen
$ poetry install
$ poetry shell

With the Poetry shell running, start the instameta tool and verify that it’s working by requesting its usage options and having them returned:

$ instameta --help
Usage: instameta [OPTIONS] COMMAND [ARGS]...

Options:
  --help  Show this message and exit.

Commands:
  info
  init
  process

Usage

• Show the help text:

  $ instameta --help

• Show the help text for an individual command:

  $ instameta init --help

• Show summary information about an instameta configuration file. Here we use the example configuration file provided in the repo:

  $ instameta info --config example/modscg.ini

• Exit the Poetry shell:

  $ exit

Troubleshooting

TBD

Contributing

Requirements

• Python v3.12+
• Poetry

Installing Dependencies

• Use Poetry to create and activate a virtual environment

  $ poetry shell

• Install dependencies

  $ poetry install

Running tests:

    $ poetry run pytest

Credit

This content was developed by the National Snow and Ice Data Center with funding from multiple sources.