50 lines
814 B
Go
50 lines
814 B
Go
package executor
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import (
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"errors"
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"os"
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"path/filepath"
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"syscall"
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"github.com/containerd/continuity/fs"
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)
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func MountStubsCleaner(dir string, mounts []Mount) func() {
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names := []string{"/etc/resolv.conf", "/etc/hosts"}
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for _, m := range mounts {
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names = append(names, m.Dest)
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}
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paths := make([]string, 0, len(names))
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for _, p := range names {
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p = filepath.Join("/", p)
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if p == "/" {
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continue
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}
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realPath, err := fs.RootPath(dir, p)
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if err != nil {
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continue
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}
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_, err = os.Lstat(realPath)
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if errors.Is(err, os.ErrNotExist) || errors.Is(err, syscall.ENOTDIR) {
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paths = append(paths, realPath)
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}
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}
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return func() {
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for _, p := range paths {
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st, err := os.Lstat(p)
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if err != nil {
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continue
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}
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if st.Size() != 0 {
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continue
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}
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os.Remove(p)
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}
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}
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}
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