Privatae
25 lines
567 B
Go
25 lines
567 B
Go
//go:build linux
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package main
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// The strong cache key on Linux: device, inode, size, and the inode's change
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// time. deltacache.go says why ctime is the field that matters.
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import (
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"os"
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"strconv"
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"syscall"
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)
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func statIdentity(fi os.FileInfo) (string, bool) {
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st, ok := fi.Sys().(*syscall.Stat_t)
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if !ok {
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return "", false
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}
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return strconv.FormatUint(uint64(st.Dev), 10) + ":" +
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strconv.FormatUint(st.Ino, 10) + ":" +
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strconv.FormatInt(fi.Size(), 10) + ":" +
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strconv.FormatInt(st.Ctim.Sec, 10) + "." +
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strconv.FormatInt(st.Ctim.Nsec, 10), true
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}
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