Add ghactions ci validation #6

	name: validate
	on:
	push:
	branches:
	- master
	paths:
	- '**.ipynb'
	pull_request:
	branches:
	- master
	paths:
	- '**.ipynb'

	jobs:
	build:
	name: validate notebooks
	runs-on: ubuntu-latest

	defaults:
	run:
	shell: bash -l {0}

	steps:
	- uses: actions/checkout@v4

	- name: setup env
	uses: conda-incubator/setup-miniconda@v3
	with:
	activate-environment: cmip6env
	channels: conda-forge
	mamba-version: "*"
	channel-priority: strict
	auto-update-conda: false
	environment-file: environment.yml
	auto-activate-base: false

	- name: verify env
	run: \|
	conda info
	conda list

	- name: get changed ipynb files
	id: changed-ipynb-files
	uses: tj-actions/changed-files@v44
	with:
	files: \|
	**.ipynb

	- name: validate all changed ipynb files
	if: steps.changed-ipynb-files.outputs.any_changed == 'true'
	env:
	ALL_CHANGED_FILES: ${{ steps.changed-ipynb-files.outputs.all_changed_files }}
	run: \|
	for file in ${ALL_CHANGED_FILES}; do
	echo "$file was changed"
	papermill -k cmip6env $file -
	done

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