From 2caa7502d523316d431c18b26e72e6cdd2577df8 Mon Sep 17 00:00:00 2001
From: Ben Boeckel <ben.boeckel@kitware.com>
Date: Thu, 11 Jun 2020 11:17:04 -0400
Subject: ci: support running just a set of tests with external builders

---
 .gitlab/ci/ctest_test_external.cmake | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/.gitlab/ci/ctest_test_external.cmake b/.gitlab/ci/ctest_test_external.cmake
index 1e61d52..d92b936 100644
--- a/.gitlab/ci/ctest_test_external.cmake
+++ b/.gitlab/ci/ctest_test_external.cmake
@@ -53,10 +53,17 @@ if ("$ENV{CTEST_NO_WARNINGS_ALLOWED}" AND num_warnings GREATER 0)
     "Found ${num_warnings} warnings (treating as fatal).")
 endif ()
 
+set(ctest_label_args)
+if (NOT "$ENV{CTEST_LABELS}" STREQUAL "")
+  list(APPEND ctest_label_args
+    INCLUDE_LABEL "$ENV{CTEST_LABELS}")
+endif ()
+
 include("${CMAKE_CURRENT_LIST_DIR}/ctest_exclusions.cmake")
 ctest_test(
   PARALLEL_LEVEL "${nproc}"
   RETURN_VALUE test_result
+  ${ctest_label_args}
   EXCLUDE "${test_exclusions}")
 ctest_submit(PARTS Test)
 
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