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8e4a42aa42
Add support for short-name aliasing. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
40 lines
842 B
Go
40 lines
842 B
Go
// +build linux darwin
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package util
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import (
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"os"
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"sync"
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"syscall"
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)
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type hardlinkDeviceAndInode struct {
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device, inode uint64
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}
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type HardlinkChecker struct {
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hardlinks sync.Map
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}
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func (h *HardlinkChecker) Check(fi os.FileInfo) string {
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if st, ok := fi.Sys().(*syscall.Stat_t); ok && fi.Mode().IsRegular() && st.Nlink > 1 {
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if name, ok := h.hardlinks.Load(makeHardlinkDeviceAndInode(st)); ok && name.(string) != "" {
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return name.(string)
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}
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}
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return ""
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}
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func (h *HardlinkChecker) Add(fi os.FileInfo, name string) {
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if st, ok := fi.Sys().(*syscall.Stat_t); ok && fi.Mode().IsRegular() && st.Nlink > 1 {
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h.hardlinks.Store(makeHardlinkDeviceAndInode(st), name)
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}
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}
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func UID(st os.FileInfo) int {
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return int(st.Sys().(*syscall.Stat_t).Uid)
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}
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func GID(st os.FileInfo) int {
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return int(st.Sys().(*syscall.Stat_t).Gid)
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}
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