From 5b12fe463364926a02c83decf9a52ee6de41d3f8 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 8 Apr 2020 13:51:36 -0400
Subject: CTestCoverageCollectGCOV: Avoid capturing gcov output in QUIET mode

The `QUIET` mode suppresses any mention of our logged output, so do not
bother logging it.  This also provides a way for users to avoid saving
possibly large output on disk.

Fixes: #20554
---
 Modules/CTestCoverageCollectGCOV.cmake | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/Modules/CTestCoverageCollectGCOV.cmake b/Modules/CTestCoverageCollectGCOV.cmake
index 43540da..b498086 100644
--- a/Modules/CTestCoverageCollectGCOV.cmake
+++ b/Modules/CTestCoverageCollectGCOV.cmake
@@ -137,12 +137,23 @@ function(ctest_coverage_collect_gcov)
   if(NOT DEFINED GCOV_GCOV_OPTIONS)
     set(GCOV_GCOV_OPTIONS -b -x)
   endif()
+  if (GCOV_QUIET)
+    set(coverage_out_opts
+      OUTPUT_QUIET
+      ERROR_QUIET
+      )
+  else()
+    set(coverage_out_opts
+      OUTPUT_FILE "${coverage_dir}/gcov.log"
+      ERROR_FILE  "${coverage_dir}/gcov.log"
+      )
+  endif()
   execute_process(COMMAND
     ${gcov_command} ${GCOV_GCOV_OPTIONS} ${gcda_files}
-    OUTPUT_FILE "${coverage_dir}/gcov.log"
-    ERROR_FILE  "${coverage_dir}/gcov.log"
     RESULT_VARIABLE res
-    WORKING_DIRECTORY ${coverage_dir})
+    WORKING_DIRECTORY ${coverage_dir}
+    ${coverage_out_opts}
+    )
 
   if (GCOV_DELETE)
     file(REMOVE ${gcda_files})
-- 
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