[skip ci]Add go code coverage (#5024)

Signed-off-by: Xiangyu Wang <xiangyu.wang@zilliz.com>

.gitignore

@@ -72,3 +72,7 @@ gtags.conf
 
 # Delve generated file
 **/__debug_bin
+
+# go-codecov
+coverage.txt
+profile.out

Makefile

@@ -154,6 +154,11 @@ test-cpp: build-cpp-with-unittest
 	@echo "Running cpp unittests..."
 	@(env bash $(PWD)/scripts/run_cpp_unittest.sh)
 
+# Run go-codecov
+go-codecov:
+	@echo "Running go unittests..."
+	@(env bash $(PWD)/scripts/run_go_codecov.sh)
+
 #TODO: build each component to docker
 docker: verifiers
 

scripts/run_go_codecov.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+echo "" > coverage.txt
+
+for d in $(go list ./internal... | grep -v vendor); do
+    go test -race -coverprofile=profile.out -covermode=atomic "$d"
+    if [ -f profile.out ]; then
+        cat profile.out >> coverage.txt
+        rm profile.out
+    fi
+done