36 lines
696 B
Go
36 lines
696 B
Go
// +build !darwin
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// +build !freebsd
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// +build !linux
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package fs
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import (
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"os"
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"time"
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)
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var zeroTime time.Time
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func modKey(path string) (ModKey, error) {
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info, err := os.Stat(path)
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if err != nil {
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return ModKey{}, err
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}
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// We can't detect changes if the file system zeros out the modification time
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mtime := info.ModTime()
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if mtime == zeroTime || mtime.Unix() == 0 {
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return ModKey{}, modKeyUnusable
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}
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// Don't generate a modification key if the file is too new
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if mtime.Add(modKeySafetyGap * time.Second).After(time.Now()) {
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return ModKey{}, modKeyUnusable
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}
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return ModKey{
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size: info.Size(),
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mtime_sec: mtime.Unix(),
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mode: uint32(info.Mode()),
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}, nil
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}
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