feat: 新增 sys.uptime/net.iface/net.conn/net.speed/proc.tree/file.empty/user.info 命令

internal/executor/sysuptime.go

@@ -0,0 +1,133 @@
+package executor
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/exec"
+	"runtime"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// runSysUptime implements `kopsc sys uptime`: show system uptime.
+func runSysUptime(ctx context.Context, req BuiltinRequest) error {
+	switch runtime.GOOS {
+	case "linux":
+		return sysUptimeLinux(req)
+	case "darwin":
+		return sysUptimeDarwin(ctx, req)
+	case "windows":
+		return sysUptimeWindows(ctx, req)
+	default:
+		return fmt.Errorf("不支持的操作系统: %s", runtime.GOOS)
+	}
+}
+
+func sysUptimeLinux(req BuiltinRequest) error {
+	data, err := os.ReadFile("/proc/uptime")
+	if err != nil {
+		return fmt.Errorf("读取 /proc/uptime 失败: %w", err)
+	}
+	fields := strings.Fields(string(data))
+	if len(fields) < 1 {
+		return fmt.Errorf("/proc/uptime 格式异常")
+	}
+	seconds, err := strconv.ParseFloat(fields[0], 64)
+	if err != nil {
+		return fmt.Errorf("解析 uptime 失败: %w", err)
+	}
+
+	bootTime := time.Now().Add(-time.Duration(seconds) * time.Second)
+	fmt.Fprintf(req.Stdout, "运行时间:  %s\n", formatDuration(time.Duration(seconds)*time.Second))
+	fmt.Fprintf(req.Stdout, "启动时间:  %s\n", bootTime.Format("2006-01-02 15:04:05"))
+
+	// Load average
+	if len(fields) >= 2 {
+		idle, _ := strconv.ParseFloat(fields[1], 64)
+		fmt.Fprintf(req.Stdout, "空闲时间:  %s\n", formatDuration(time.Duration(idle)*time.Second))
+	}
+
+	// Load average from /proc/loadavg
+	if loadavg, err := os.ReadFile("/proc/loadavg"); err == nil {
+		parts := strings.Fields(string(loadavg))
+		if len(parts) >= 3 {
+			fmt.Fprintf(req.Stdout, "负载均值:  %s %s %s (1/5/15分钟)\n", parts[0], parts[1], parts[2])
+		}
+	}
+	return nil
+}
+
+func sysUptimeDarwin(ctx context.Context, req BuiltinRequest) error {
+	out, err := exec.CommandContext(ctx, "sysctl", "-n", "kern.boottime").Output()
+	if err != nil {
+		return fmt.Errorf("获取启动时间失败: %w", err)
+	}
+	// Output: { sec = 1234567890, usec = 123456 } Mon Jan 01 00:00:00 2024
+	line := string(out)
+	secStart := strings.Index(line, "sec = ")
+	if secStart < 0 {
+		return fmt.Errorf("无法解析 kern.boottime: %s", line)
+	}
+	secStr := strings.TrimSpace(line[secStart+6:])
+	if idx := strings.Index(secStr, ","); idx >= 0 {
+		secStr = secStr[:idx]
+	}
+	sec, err := strconv.ParseInt(secStr, 10, 64)
+	if err != nil {
+		return fmt.Errorf("解析启动时间失败: %w", err)
+	}
+
+	bootTime := time.Unix(sec, 0)
+	uptime := time.Since(bootTime)
+	fmt.Fprintf(req.Stdout, "运行时间:  %s\n", formatDuration(uptime))
+	fmt.Fprintf(req.Stdout, "启动时间:  %s\n", bootTime.Format("2006-01-02 15:04:05"))
+
+	// Load average
+	if out, err := exec.CommandContext(ctx, "sysctl", "-n", "vm.loadavg").Output(); err == nil {
+		fmt.Fprintf(req.Stdout, "负载均值:  %s\n", strings.TrimSpace(string(out)))
+	}
+	return nil
+}
+
+func sysUptimeWindows(ctx context.Context, req BuiltinRequest) error {
+	// Use wmic to get boot time
+	out, err := exec.CommandContext(ctx, "wmic", "os", "get", "LastBootUpTime", "/value").Output()
+	if err != nil {
+		return fmt.Errorf("获取启动时间失败: %w", err)
+	}
+	line := strings.TrimSpace(string(out))
+	// LastBootUpTime=20240101000000.000000+480
+	if !strings.HasPrefix(line, "LastBootUpTime=") {
+		return fmt.Errorf("无法解析 wmic 输出: %s", line)
+	}
+	timeStr := strings.TrimPrefix(line, "LastBootUpTime=")
+	// Parse: 20240101000000.000000+480
+	if len(timeStr) < 14 {
+		return fmt.Errorf("时间格式异常: %s", timeStr)
+	}
+	bootTime, err := time.Parse("20060102150405", timeStr[:14])
+	if err != nil {
+		return fmt.Errorf("解析时间失败: %w", err)
+	}
+	uptime := time.Since(bootTime)
+	fmt.Fprintf(req.Stdout, "运行时间:  %s\n", formatDuration(uptime))
+	fmt.Fprintf(req.Stdout, "启动时间:  %s\n", bootTime.Format("2006-01-02 15:04:05"))
+	return nil
+}
+
+// formatDuration formats a duration into a human-readable string.
+func formatDuration(d time.Duration) string {
+	days := int(d.Hours()) / 24
+	hours := int(d.Hours()) % 24
+	minutes := int(d.Minutes()) % 60
+
+	if days > 0 {
+		return fmt.Sprintf("%d 天 %d 小时 %d 分钟", days, hours, minutes)
+	}
+	if hours > 0 {
+		return fmt.Sprintf("%d 小时 %d 分钟", hours, minutes)
+	}
+	return fmt.Sprintf("%d 分钟", minutes)
+}