photoprism/pkg/fs/walk.go

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package fs
import (
"os"
"path/filepath"
"strings"
"github.com/karrick/godirwalk"
)
// SkipGodirwalk returns true if the file or directory should be skipped in godirwalk.Walk()
func SkipGodirwalk(fileName string, info *godirwalk.Dirent, done map[string]bool) (skip bool, result error) {
isDone := done[fileName]
isHidden := strings.HasPrefix(filepath.Base(fileName), ".")
isDir := info.IsDir()
isSymlink := info.IsSymlink()
done[fileName] = true
if isSymlink {
skip = true
// Symlink points to directory?
if link, err := os.Stat(fileName); err == nil && link.IsDir() && (isHidden || isDone || done[link.Name()]) {
// Don't traverse symlinks if they are hidden or already done...
done[link.Name()] = true
result = filepath.SkipDir
}
} else if isDir {
skip = true
if isHidden || isDone {
// Don't traverse directories if they are hidden or already done...
result = filepath.SkipDir
}
} else if isHidden || isDone {
// Skip files that are hidden or already done...
skip = true
}
return skip, result
}