try func to pull files

Author: Mladen Rusev

coverage_dummy.go

@@ -0,0 +1,7 @@
+//go:build !coverage
+
+package main
+
+func startCoverageServer() {
+
+}

coverage_server.go

@@ -0,0 +1,40 @@
+//go:build coverage
+
+package main
+
+import (
+	"log"
+	"net/http"
+	"runtime/coverage"
+)
+
+func startCoverageServer() {
+	log.Println("Coverage build detected. Starting private admin server on localhost:8081...")
+	adminMux := http.NewServeMux()
+
+	adminMux.HandleFunc("/_debug/coverage/download", func(w http.ResponseWriter, r *http.Request) {
+		log.Println("Received request to download coverage counter data...")
+		w.Header().Set("Content-Type", "application/octet-stream")
+		w.Header().Set("Content-Disposition", `attachment; filename="coverage.out"`)
+
+		if err := coverage.WriteCounters(w); err != nil {
+			log.Printf("Error writing coverage counters to response: %v", err)
+		}
+	})
+
+	adminMux.HandleFunc("/_debug/coverage/meta/download", func(w http.ResponseWriter, r *http.Request) {
+		log.Println("Received request to download coverage metadata...")
+		w.Header().Set("Content-Type", "application/octet-stream")
+		w.Header().Set("Content-Disposition", `attachment; filename="coverage.meta"`)
+
+		if err := coverage.WriteMeta(w); err != nil {
+			log.Printf("Error writing coverage metadata to response: %v", err)
+		}
+	})
+
+	go func() {
+		if err := http.ListenAndServe("localhost:8081", adminMux); err != nil {
+			log.Printf("Admin server failed: %v", err)
+		}
+	}()
+}

main.go

@@ -3,5 +3,6 @@ package main
 import "github.com/jetstack/preflight/cmd"
 
 func main() {
+	startCoverageServer()
 	cmd.Execute()
 }