build conda metapackages for pangeo dependencies

These metapackages are now on conda-forge, so you can create PRs to bump versions in the following repos:

• https://github.com/conda-forge/pangeo-dask-feedstock
• https://github.com/conda-forge/pangeo-notebook-feedstock

Using

packages currently here: https://anaconda.org/pangeo/repo

conda install -c pangeo pangeo-dask

Building

Currently push to pangeo/ anaconda cloud repo, maybe later move to conda-forge

• run this locally on a linux system (docker run -v $PWD:$HOME -it continuumio/miniconda3:4.7.12 /bin/bash)
• Or push tags tp build and push metapackages with the same version via GitHub Actions

git tag 0.0.1 ; git push --tags

1. create a metapackage building environment

conda env create -f environment.yml
conda activate condabuild
# Anaconda cloud access token for pangeo organization (store as github secret)
export PAT=XXXXXXXXX

2. pangeo-dask metapackage with necessary dask packages to run on Pangeo JupyterHub or BinderHub

VERSION=0.0.1
conda-metapackage pangeo-dask $VERSION --user pangeo --token $PAT --dependencies `cat dask-packages.txt | xargs`  -c conda-forge --override-channels --license MIT --summary 'pangeo dask dependencies' --home 'http://pangeo.io'

3. pangeo-notebook metapackage with necessary packages for user jupyterlab UI + dask NOTE: update notebook-packages.txt to reflect most recent pangeo-dask version first !!

VERSION=0.0.1
conda-metapackage pangeo-notebook test --user pangeo --token $PAT --dependencies `cat notebook-packages.txt | xargs`  -c conda-forge -c pangeo --override-channels --license MIT --summary 'pangeo notebook dependencies' --home 'http://pangeo.io'