47 lines
831 B
Go
47 lines
831 B
Go
package blobstor
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import (
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"crypto/sha256"
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"encoding/hex"
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"errors"
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"path"
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objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object"
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)
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type fsTree struct {
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depth int
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dirNameLen int
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Info
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}
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const dirNameLen = 1 // in bytes
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var maxDepth = (sha256.Size - 1) / dirNameLen
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var errFileNotFound = errors.New("file not found")
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func stringifyAddress(addr *objectSDK.Address) string {
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h := sha256.Sum256([]byte(addr.String()))
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return hex.EncodeToString(h[:])
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}
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func (t *fsTree) treePath(addr *objectSDK.Address) string {
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sAddr := stringifyAddress(addr)
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dirs := make([]string, 0, t.depth+1+1) // 1 for root, 1 for file
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dirs = append(dirs, t.RootPath)
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for i := 0; i < t.depth; i++ {
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dirs = append(dirs, sAddr[:t.dirNameLen])
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sAddr = sAddr[t.dirNameLen:]
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}
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dirs = append(dirs, sAddr)
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return path.Join(dirs...)
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}
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