feat: added optional profiling

internal/executer/profiler.go

@@ -0,0 +1,40 @@
+package executer
+
+import (
+	"os"
+	"path/filepath"
+	"runtime/pprof"
+)
+
+type Profiler struct {
+	File        string
+	filePointer *os.File
+}
+
+func (p *Profiler) Start() error {
+	absPath, err := filepath.Abs(p.File)
+	if err != nil {
+		return err
+	}
+
+	err = os.MkdirAll(filepath.Dir(absPath), 0777)
+	if err != nil {
+		return err
+	}
+
+	p.filePointer, err = os.Create(absPath)
+	if err != nil {
+		return err
+	}
+
+	if err = pprof.StartCPUProfile(p.filePointer); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (p *Profiler) End() {
+	pprof.StopCPUProfile()
+	p.filePointer.Close()
+}