feat: basic binary execution

src/modules/runner/runner.go

@@ -0,0 +1,63 @@
+package runner
+
+import (
+	"log"
+	"os"
+	"os/exec"
+	"runtime"
+)
+
+func FindMeshbookBinary() (bool, string) {
+	var osBin string
+
+	switch runtime.GOOS {
+	case "windows":
+		osBin = "meshbook.exe"
+	case "linux":
+		osBin = "meshbook"
+	default:
+		log.Println("undefined operating system")
+	}
+
+	log.Println("going to search for:", osBin)
+
+	binaryFound := false
+	var binaryPath string
+	for _, f := range []string{("./" + osBin), ("./bin/" + osBin)} {
+		objInfo, err := os.Stat(f)
+
+		if err == nil && objInfo.Mode().IsRegular() {
+			binaryFound = true
+			binaryPath = f
+			log.Printf("found binary at %s", f)
+			break
+		}
+	}
+
+	if binaryFound {
+		return true, binaryPath
+	} else {
+		return false, ""
+	}
+}
+
+func RunMeshbook(binPath, bookPath, targGroup string) (bool, string) {
+	var args []string
+	if len(bookPath) == 0 {
+		args = []string{"--help"}
+	} else {
+		args = []string{"--nograce", "-mb", bookPath, "--group", targGroup}
+	}
+	log.Printf("running with parameters: %v", args)
+
+	cmd := exec.Command(binPath, args...)
+	cOut, err := cmd.CombinedOutput()
+	if err != nil {
+		log.Printf("something went wrong when running the command: %v", err)
+		log.Printf("captured output: %s", string(cOut))
+		return false, ""
+	}
+
+	log.Printf("captured output: %s", string(cOut))
+	return true, ""
+}