Reconstruct the structure of go

cmd/status/metrics_memory.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"context"
+	"runtime"
+	"strings"
+	"time"
+
+	"github.com/shirou/gopsutil/v3/mem"
+)
+
+func collectMemory() (MemoryStatus, error) {
+	vm, err := mem.VirtualMemory()
+	if err != nil {
+		return MemoryStatus{}, err
+	}
+
+	swap, _ := mem.SwapMemory()
+	pressure := getMemoryPressure()
+
+	return MemoryStatus{
+		Used:        vm.Used,
+		Total:       vm.Total,
+		UsedPercent: vm.UsedPercent,
+		SwapUsed:    swap.Used,
+		SwapTotal:   swap.Total,
+		Pressure:    pressure,
+	}, nil
+}
+
+func getMemoryPressure() string {
+	if runtime.GOOS != "darwin" {
+		return ""
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
+	defer cancel()
+	out, err := runCmd(ctx, "memory_pressure")
+	if err != nil {
+		return ""
+	}
+	lower := strings.ToLower(out)
+	if strings.Contains(lower, "critical") {
+		return "critical"
+	}
+	if strings.Contains(lower, "warn") {
+		return "warn"
+	}
+	if strings.Contains(lower, "normal") {
+		return "normal"
+	}
+	return ""
+}