51b8e468e5
Previously hardlinking to an unmodified file or linking to a file which was touched by not detected as modified caused a new file to be created on unpack. This new file and the original source file were not linked since no link record was created in the tar. This change addresses this by adding links for all hardlinks to a file when it is detected as changed. These links will be written after the source file is written and may occur out of order in regard to file name. Signed-off-by: Derek McGowan <derek@mcgstyle.net>
18 lines
232 B
Go
18 lines
232 B
Go
// +build !windows
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package fs
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import (
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"os"
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"syscall"
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)
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func getLinkInfo(fi os.FileInfo) (uint64, bool) {
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s, ok := fi.Sys().(*syscall.Stat_t)
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if !ok {
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return 0, false
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}
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return uint64(s.Ino), !fi.IsDir() && s.Nlink > 1
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}
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