Add model builder #171

	# much of this is taken from the Empress main.yml file
	name: BIRDMAn CI

	on:
	pull_request:
	paths-ignore:
	- "docs/**"
	- "README.md"
	branches:
	- main
	push:
	paths-ignore:
	- "docs/**"
	- "README.md"
	branches:
	- main

	jobs:
	build:
	runs-on: ubuntu-latest

	strategy:
	matrix:
	python-version: ["3.7", "3.8", "3.9"]

	steps:
	- uses: actions/checkout@v2
	with:
	persist-credentials: false
	fetch-depth: 0

	- uses: conda-incubator/setup-miniconda@v2
	with:
	activate-environment: birdman
	mamba-version: "*"
	channels: conda-forge,defaults
	channel-priority: true
	python-version: ${{ matrix.python-version }}

	- name: Install conda packages
	shell: bash -l {0}
	run: mamba install -c conda-forge biom-format patsy pytest xarray scikit-bio flake8 arviz cmdstanpy

	- name: Install BIRDMAn
	shell: bash -l {0}
	run: pip install -e .[dev]

	- name: Check style
	shell: bash -l {0}
	run: flake8 birdman/.py tests/.py setup.py

	- name: Run tests
	shell: bash -l {0}
	run: pytest --disable-pytest-warnings

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