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20 lines
477 B
Go
20 lines
477 B
Go
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package restorer
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import (
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"os"
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"github.com/restic/restic/internal/debug"
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"golang.org/x/sys/windows"
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)
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func truncateSparse(f *os.File, size int64) error {
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// try setting the sparse file attribute, but ignore the error if it fails
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var t uint32
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err := windows.DeviceIoControl(windows.Handle(f.Fd()), windows.FSCTL_SET_SPARSE, nil, 0, nil, 0, &t, nil)
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if err != nil {
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debug.Log("failed to set sparse attribute for %v: %v", f.Name(), err)
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}
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return f.Truncate(size)
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}
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