erk provides functionality to compute the Merkle root and generate a detailed Merkle tree for files within a directory or a single file. It uses the xxHash algorithm(provided by github.com/cespare/xxhash/v2) for hashing file contents.
- hash individual files or all files within a directory.
- construct a Merkle tree from the hashed file data.
- retrieve the Merkle root of the constructed tree.
- print the Merkle tree in a human-readable format.
package main
import (
"fmt"
"log"
"github.com/guycipher/erk"
)
func main() {
// Create a new Erk instance
e, err := erk.New("path/to/directory/or/file", true) // Set to false if input is a file
if err != nil {
log.Fatalf("Failed to create Erk instance: %v", err)
}
// Build the Merkle tree
root := e.BuildTree()
// Get the Merkle root
merkleRoot := erk.GetMerkleRoot(root)
fmt.Printf("Merkle Root: %x\n", merkleRoot)
// Print the Merkle tree
tree := erk.PrintTreeBytes(root, 0)
}2e8acb4bccf85227
test_dir/f1.txt: 0a75a91375b27d44
test_dir/f2.txt: 19a1d238fce6124f