From 2bde82ffa2f5fe9161e3322fee82eb45699b9164 Mon Sep 17 00:00:00 2001
From: Tim Wojtulewicz <tim@corelight.com>
Date: Wed, 15 May 2024 13:58:33 -0700
Subject: [PATCH] CI: Use llvm-cov-18 on Cirrus for building coverage data

---
 testing/coverage/code_coverage.sh | 44 +++++++++++++++++++------------
 1 file changed, 27 insertions(+), 17 deletions(-)

diff --git a/testing/coverage/code_coverage.sh b/testing/coverage/code_coverage.sh
index 18fc902435..100f6b8f44 100755
--- a/testing/coverage/code_coverage.sh
+++ b/testing/coverage/code_coverage.sh
@@ -21,6 +21,21 @@ BASE="$(cd "$CURR" && cd ../../ && pwd)"
 TMP="${CURR}/tmp.$$"
 mkdir -p $TMP
 
+GCOV_CMD=""
+if [ -n "${CIRRUS_TASK_NAME}" ]; then
+    GCOV_CMD="$(which llvm-cov-18)"
+    if [ -n "${GCOV_CMD}" ]; then
+        GCOV_CMD="${GCOV_CMD} gcov"
+    fi
+else
+    GCOV_CMD="$(which gcov)"
+fi
+
+if [ -z "${GCOV_CMD}" ]; then
+    echo "gcov is not installed on system, aborting"
+    exit 1
+fi
+
 # DEFINE CLEANUP PROCESS
 function finish {
     rm -rf $TMP
@@ -97,26 +112,21 @@ echo "ok"
 # 3a. Run gcov (-p to preserve path) and move into tmp directory
 # ... if system does not have gcov installed, exit with message.
 echo -n "Creating coverage files... "
-if which gcov >/dev/null 2>&1; then
-    (cd "$TMP" && find "$BASE" -name "*.o" -exec gcov -p {} \; >/dev/null 2>&1)
-    NUM_GCOVS=$(find "$TMP" -name *.gcov | wc -l)
-    if [ $NUM_GCOVS -eq 0 ]; then
-        echo "no gcov files produced, aborting"
-        exit 1
-    fi
-
-    # Account for '^' that occurs in macOS due to LLVM
-    # This character seems to be equivalent to ".." (up 1 dir)
-    for file in $(ls $TMP/*.gcov | grep '\^'); do
-        mv $file "$(sed 's/#[^#]*#\^//g' <<<"$file")"
-    done
-
-    echo "ok, $NUM_GCOVS coverage files"
-else
-    echo "gcov is not installed on system, aborting"
+(cd "$TMP" && find "$BASE" -name "*.o" -exec ${GCOV_CMD} -p {} \; >/dev/null 2>&1)
+NUM_GCOVS=$(find "$TMP" -name *.gcov | wc -l)
+if [ $NUM_GCOVS -eq 0 ]; then
+    echo "no gcov files produced, aborting"
     exit 1
 fi
 
+# Account for '^' that occurs in macOS due to LLVM
+# This character seems to be equivalent to ".." (up 1 dir)
+for file in $(ls $TMP/*.gcov | grep '\^'); do
+    mv $file "$(sed 's/#[^#]*#\^//g' <<<"$file")"
+done
+
+echo "ok, $NUM_GCOVS coverage files"
+
 # 3b. Prune gcov files that fall outside of the Zeek tree:
 # Look for files containing gcov's slash substitution character "#"
 # and remove any that don't contain the Zeek path root.