Fix test when global.rst include file in docs is used.

Related to: debops/docs#155

defaults.conf

@@ -88,6 +88,14 @@ assert_docs () {
   cd "${TRAVIS_BUILD_DIR}/docs" || exit 1
   test -d _static || mkdir -p _static
   test -f ../defaults/main.yml && yaml2rst ../defaults/main.yml defaults.rst --strip-regex '\s*(:?\[{3}|\]{3})\d?$'
+
+  # Support global link definitions.
+  if [[ -d "${TRAVIS_BUILD_DIR}/docs/includes" ]]
+  then
+    rm -rf "${TRAVIS_BUILD_DIR}/docs/includes/global.rst"
+    wget https://raw.githubusercontent.com/debops/docs/master/docs/includes/global.rst -O "${TRAVIS_BUILD_DIR}/docs/includes/global.rst"
+  fi
+
   sphinx-build -n -W -b html -d _build/doctrees . _build/html
   rc=$?
   cd - > /dev/null || exit 1