initial commit

mypy

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+### check type annotations with mypy
+
+set -e
+
+base=$(dirname "$(readlink -f "$0")")
+cd "${base}"
+
+if [ ! -d "venv" -o ! -x "venv/bin/python" ]; then
+    echo >&2 "Missing virtualenv in 'venv'; maybe run setup-venv.sh first!"
+    exit 1
+fi
+
+if [ ! -x ./venv/bin/mypy ]; then
+    ./venv/bin/pip install mypy
+fi
+
+site_pkgs=$(./venv/bin/python -c 'import site; print(site.getsitepackages()[0])')
+if [ ! -d "${site_pkgs}/trio_typing" ]; then
+    ./venv/bin/pip install trio-typing[mypy]
+fi
+
+./venv/bin/mypy --install-types src