mypy/action.yml at master · python/mypy

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	name: "Mypy"
	description: "Optional Static Typing for Python."
	author: "Jukka Lehtosalo and contributors"
	inputs:
	options:
	description: >
	Options passed to mypy. Use `mypy --help` to see available options.
	required: false
	paths:
	description: >
	Explicit paths to run mypy on. Defaults to the current directory.
	required: false
	default: "."
	version:
	description: >
	Mypy version to use (PEP440) - e.g. "0.910"
	required: false
	default: ""
	install_types:
	description: >
	Whether to automatically install missing library stub packages.
	('yes'\|'no', default: 'yes')
	default: "yes"
	install_project_dependencies:
	description: >
	Whether to attempt to install project dependencies into mypy
	environment. ('yes'\|'no', default: 'yes')
	default: "yes"
	branding:
	color: "blue"
	icon: "check-circle"
	runs:
	using: composite
	steps:
	- name: mypy setup
	shell: bash
	run: \|
	echo ::group::Installing mypy...
	export PIP_DISABLE_PIP_VERSION_CHECK=1

	if [ "$RUNNER_OS" == "Windows" ]; then
	HOST_PYTHON=python
	else
	HOST_PYTHON=python3
	fi

	venv_script="import os.path; import venv; import sys;
	path = os.path.join(r'${{ github.action_path }}', '.mypy-venv');
	venv.main([path]);
	bin_subdir = 'Scripts' if sys.platform == 'win32' else 'bin';
	print(os.path.join(path, bin_subdir, 'python'));
	"

	VENV_PYTHON=$(echo $venv_script \| "$HOST_PYTHON")
	mypy_spec="mypy"

	if [ -n "${{ inputs.version }}" ]; then
	mypy_spec+="==${{ inputs.version }}"
	fi

	if ! "$VENV_PYTHON" -m pip install "$mypy_spec"; then
	echo "::error::Could not install mypy."
	exit 1
	fi
	echo ::endgroup::

	if [ "${{ inputs.install_project_dependencies }}" == "yes" ]; then
	VENV=$("$VENV_PYTHON" -c 'import sys;print(sys.prefix)')
	echo ::group::Installing project dependencies...
	"$VENV_PYTHON" -m pip download --dest="$VENV"/deps .
	"$VENV_PYTHON" -m pip install -U --find-links="$VENV"/deps "$VENV"/deps/*
	echo ::endgroup::
	fi

	echo ::group::Running mypy...
	mypy_opts=""
	if [ "${{ inputs.install_types }}" == "yes" ]; then
	mypy_opts+="--install-types --non-interactive"
	fi

	echo "mypy $mypy_opts ${{ inputs.options }} ${{ inputs.paths }}"
	"$VENV_PYTHON" -m mypy $mypy_opts ${{ inputs.options }} ${{ inputs.paths }}
	echo ::endgroup::