kkernel 0.7.0

khive kernel — stdio MCP server binary and admin CLI (sync, pack introspection, db ops)
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
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131

//! `kkernel kg status` — compare DB state against on-disk NDJSON files.

use anyhow::{Context, Result};
use khive_runtime::{KhiveRuntime, Namespace, RuntimeConfig};

use super::archive::archive_from_ndjson_repo;
use super::types::{KgStatusReport, StatusArgs};

pub(super) async fn cmd_status(args: StatusArgs) -> Result<()> {
    let ns = Namespace::parse(&args.namespace)?;
    let config = RuntimeConfig {
        db_path: Some(args.db.clone()),
        default_namespace: ns.clone(),
        embedding_model: None,
        ..Default::default()
    };
    let runtime = KhiveRuntime::new(config)?;
    let token = runtime.authorize(ns)?;

    let db_archive = runtime.export_kg(&token).await?;
    let db_hash = khive_vcs::hash::snapshot_id_for_archive(&db_archive)
        .context("hash DB archive")?
        .as_str()
        .to_string();

    let ndjson_archive = archive_from_ndjson_repo(&args.repo, &args.namespace)?;
    let ndjson_hash = khive_vcs::hash::snapshot_id_for_archive(&ndjson_archive)
        .context("hash NDJSON archive")?
        .as_str()
        .to_string();

    let report = KgStatusReport {
        clean: db_hash == ndjson_hash,
        db_hash,
        ndjson_hash,
    };
    let json = serde_json::to_string(&report).expect("serialize KgStatusReport");
    println!("{json}");
    Ok(())
}

#[cfg(test)]
mod tests {
    use tempfile::TempDir;

    use khive_runtime::{KhiveRuntime, Namespace, RuntimeConfig};

    use crate::kg::archive::archive_from_ndjson_repo;

    #[tokio::test]
    async fn status_hashes_clean_after_sync() {
        let tmp = TempDir::new().unwrap();
        let repo = tmp.path();
        let entity_id = "ffffffff-ffff-ffff-ffff-ffffffffffff";
        let entity_ndjson = format!(
            r#"{{"id":"{entity_id}","kind":"concept","name":"StatusEntity","properties":{{}},"tags":[]}}"#
        );
        let kg_dir = repo.join(".khive/kg");
        std::fs::create_dir_all(&kg_dir).unwrap();
        std::fs::write(kg_dir.join("entities.ndjson"), &entity_ndjson).unwrap();
        std::fs::write(kg_dir.join("edges.ndjson"), "").unwrap();

        let db = repo.join(".khive/state/working.db");
        crate::sync::run_sync(repo, &db, "test-ns").await.unwrap();

        let ns = Namespace::parse("test-ns").unwrap();
        let config = RuntimeConfig {
            db_path: Some(db),
            default_namespace: ns.clone(),
            embedding_model: None,
            ..Default::default()
        };
        let runtime = KhiveRuntime::new(config).unwrap();
        let token = runtime.authorize(ns).unwrap();

        let db_archive = runtime.export_kg(&token).await.unwrap();
        let ndjson_archive = archive_from_ndjson_repo(repo, "test-ns").unwrap();

        let db_hash = khive_vcs::hash::snapshot_id_for_archive(&db_archive).unwrap();
        let ndjson_hash = khive_vcs::hash::snapshot_id_for_archive(&ndjson_archive).unwrap();
        assert_eq!(db_hash, ndjson_hash, "hashes must match after sync");
    }

    /// #473 exposed a sibling gap: `run_sync` now preserves `entity_type` into
    /// the DB, but `archive_from_ndjson_repo` (the status command's NDJSON-side
    /// reader) hardcoded `entity_type: None`, so a repo with typed entities
    /// reported dirty immediately after a clean sync. Mirrors
    /// `status_hashes_clean_after_sync` but with a real `entity_type` set.
    #[tokio::test]
    async fn status_hashes_clean_after_sync_with_entity_type() {
        let tmp = TempDir::new().unwrap();
        let repo = tmp.path();
        let entity_id = "eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee";
        let entity_ndjson = format!(
            r#"{{"id":"{entity_id}","kind":"document","entity_type":"paper","name":"Attention Is All You Need","properties":{{}},"tags":[]}}"#
        );
        let kg_dir = repo.join(".khive/kg");
        std::fs::create_dir_all(&kg_dir).unwrap();
        std::fs::write(kg_dir.join("entities.ndjson"), &entity_ndjson).unwrap();
        std::fs::write(kg_dir.join("edges.ndjson"), "").unwrap();

        let db = repo.join(".khive/state/working.db");
        crate::sync::run_sync(repo, &db, "test-ns").await.unwrap();

        let ns = Namespace::parse("test-ns").unwrap();
        let config = RuntimeConfig {
            db_path: Some(db),
            default_namespace: ns.clone(),
            embedding_model: None,
            ..Default::default()
        };
        let runtime = KhiveRuntime::new(config).unwrap();
        let token = runtime.authorize(ns).unwrap();

        let db_archive = runtime.export_kg(&token).await.unwrap();
        let ndjson_archive = archive_from_ndjson_repo(repo, "test-ns").unwrap();

        assert_eq!(
            ndjson_archive.entities[0].entity_type.as_deref(),
            Some("paper"),
            "NDJSON-side archive must preserve entity_type, not hardcode None"
        );

        let db_hash = khive_vcs::hash::snapshot_id_for_archive(&db_archive).unwrap();
        let ndjson_hash = khive_vcs::hash::snapshot_id_for_archive(&ndjson_archive).unwrap();
        assert_eq!(
            db_hash, ndjson_hash,
            "hashes must match after sync even when entities carry entity_type"
        );
    }
}