cmn-substrate 0.3.0

CMN protocol core — Ed25519 signatures, BLAKE3 tree hashing, JSON schema validation, URI parsing, and JCS canonicalization. Zero I/O, WASM-compatible.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

//! Tree hashing for spores.

use anyhow::{anyhow, Result};

pub mod blob_tree_blake3_nfc;
pub mod walk;

pub use blob_tree_blake3_nfc::{compute_hash_from_entries, portable_filename_key, TreeEntry};
pub use walk::{flatten_entries, max_mtime, should_exclude, walk_dir, DirEntry, DirReader};

pub fn compute_tree_hash_from_entries(
    entries: &[TreeEntry],
    tree: &crate::model::SporeTree,
) -> Result<String> {
    match tree.algorithm.as_str() {
        blob_tree_blake3_nfc::ALGORITHM => {
            blob_tree_blake3_nfc::compute_hash_from_entries(entries, &tree.exclude_names)
        }
        other => Err(anyhow!("Unsupported tree algorithm: '{}'", other)),
    }
}

/// Compute tree hash and total uncompressed source size in bytes.
pub fn compute_tree_hash_and_size_from_entries(
    entries: &[TreeEntry],
    tree: &crate::model::SporeTree,
) -> Result<(String, u64)> {
    match tree.algorithm.as_str() {
        blob_tree_blake3_nfc::ALGORITHM => {
            blob_tree_blake3_nfc::compute_hash_and_size_from_entries(entries, &tree.exclude_names)
        }
        other => Err(anyhow!("Unsupported tree algorithm: '{}'", other)),
    }
}