test: add macOS test script

Author: scop

test/macos-script.sh

@@ -0,0 +1,22 @@
+#!/bin/sh -eux
+
+# Note that this script is intended to be run only in throwaway environments;
+# it may install undesirable things to system locations (if it succeeds in
+# that).
+
+brew install \
+    automake \
+    bash
+
+python3 -m pip install -r test/requirements.txt
+
+export bashcomp_bash=bash
+env
+
+autoreconf -i
+./configure
+make -j
+
+make distcheck \
+    PYTESTFLAGS="${PYTESTFLAGS---verbose --numprocesses=auto --dist=loadfile}"
+cp -p bash-completion-*.tar.* "$oldpwd/"