67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
package executor
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import (
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"context"
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"fmt"
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"os/exec"
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"runtime"
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"strings"
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)
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// runDiskInode implements `kopsc disk inode`: show inode usage.
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func runDiskInode(ctx context.Context, req BuiltinRequest) error {
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opts, err := parseDiskInodeArgs(req.Args)
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if err != nil {
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return err
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}
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path := opts.path
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if path == "" {
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path = "."
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}
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switch runtime.GOOS {
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case "linux", "darwin":
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return diskInodeUnix(ctx, req, path)
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case "windows":
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return fmt.Errorf("Windows 不支持 inode（NTFS 使用 MFT，无 inode 概念）")
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default:
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return fmt.Errorf("不支持的操作系统: %s", runtime.GOOS)
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}
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}
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type diskInodeOptions struct {
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path string
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}
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func parseDiskInodeArgs(args []string) (diskInodeOptions, error) {
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var opts diskInodeOptions
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var positional []string
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for i := 0; i < len(args); i++ {
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arg := args[i]
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switch {
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case arg == "--":
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positional = append(positional, args[i+1:]...)
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i = len(args)
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case strings.HasPrefix(arg, "-") && arg != "-":
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return opts, fmt.Errorf("未知选项 %q", arg)
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default:
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positional = append(positional, arg)
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}
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}
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if len(positional) > 0 {
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opts.path = positional[0]
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}
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return opts, nil
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}
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func diskInodeUnix(ctx context.Context, req BuiltinRequest, path string) error {
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// Use df -i to get inode info
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cmd := exec.CommandContext(ctx, "df", "-i", path)
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cmd.Stdout = req.Stdout
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cmd.Stderr = req.Stderr
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return cmd.Run()
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}
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