sqlite_graphrag/commands/
restore.rs

1//! Handler for the `restore` CLI subcommand.
2
3use crate::errors::AppError;
4use crate::i18n::errors_msg;
5use crate::output;
6use crate::output::JsonOutputFormat;
7use crate::paths::AppPaths;
8use crate::storage::connection::open_rw;
9use crate::storage::memories;
10use crate::storage::versions;
11use rusqlite::params;
12use rusqlite::OptionalExtension;
13use serde::Serialize;
14
15#[derive(clap::Args)]
16#[command(after_long_help = "EXAMPLES:\n  \
17    # Restore the latest non-`restore` version of a memory\n  \
18    sqlite-graphrag restore --name onboarding\n\n  \
19    # Restore a specific version\n  \
20    sqlite-graphrag restore --name onboarding --version 3\n\n  \
21    # Restore within a specific namespace\n  \
22    sqlite-graphrag restore --name onboarding --namespace my-project")]
23pub struct RestoreArgs {
24    /// Memory name as a positional argument. Alternative to `--name`.
25    #[arg(
26        value_name = "NAME",
27        conflicts_with = "name",
28        help = "Memory name to restore; alternative to --name"
29    )]
30    pub name_positional: Option<String>,
31    /// Memory name to restore (must exist, including soft-deleted/forgotten).
32    #[arg(long)]
33    pub name: Option<String>,
34    /// Version to restore. When omitted, defaults to the latest non-`restore` version
35    /// from `memory_versions`. This makes the forget+restore workflow work without
36    /// requiring the user to discover the version first.
37    #[arg(long)]
38    pub version: Option<i64>,
39    #[arg(
40        long,
41        help = "Namespace (env: SQLITE_GRAPHRAG_NAMESPACE, default: global)"
42    )]
43    pub namespace: Option<String>,
44    /// Optimistic locking: reject if the current updated_at does not match (exit 3).
45    #[arg(
46        long,
47        value_name = "EPOCH_OR_RFC3339",
48        value_parser = crate::parsers::parse_expected_updated_at,
49        long_help = "Optimistic lock: reject if updated_at does not match. \
50Accepts Unix epoch (e.g. 1700000000) or RFC 3339 (e.g. 2026-04-19T12:00:00Z)."
51    )]
52    pub expected_updated_at: Option<i64>,
53    /// Output format.
54    #[arg(long, value_enum, default_value_t = JsonOutputFormat::Json)]
55    pub format: JsonOutputFormat,
56    #[arg(long, hide = true, help = "No-op; JSON is always emitted on stdout")]
57    pub json: bool,
58    #[arg(long, env = "SQLITE_GRAPHRAG_DB_PATH")]
59    pub db: Option<String>,
60}
61
62#[derive(Serialize)]
63struct RestoreResponse {
64    /// Always `"restored"` — signals the completed action to shell callers and LLM agents.
65    action: String,
66    memory_id: i64,
67    name: String,
68    version: i64,
69    restored_from: i64,
70    /// Total execution time in milliseconds from handler start to serialisation.
71    elapsed_ms: u64,
72}
73
74pub fn run(args: RestoreArgs) -> Result<(), AppError> {
75    let start = std::time::Instant::now();
76    let _ = args.format;
77    let name = args
78        .name_positional
79        .as_deref()
80        .or(args.name.as_deref())
81        .ok_or_else(|| {
82            AppError::Validation(
83                "name required: pass as positional argument or via --name".to_string(),
84            )
85        })?
86        .to_string();
87    let namespace = crate::namespace::resolve_namespace(args.namespace.as_deref())?;
88    let paths = AppPaths::resolve(args.db.as_deref())?;
89    let mut conn = open_rw(&paths.db)?;
90
91    // PRD line 1118: query WITHOUT a deleted_at filter — restore must work on soft-deleted memories
92    let result: Option<(i64, i64)> = conn
93        .query_row(
94            "SELECT id, updated_at FROM memories WHERE namespace = ?1 AND name = ?2",
95            params![namespace, name],
96            |r| Ok((r.get(0)?, r.get(1)?)),
97        )
98        .optional()?;
99    let (memory_id, current_updated_at) = result
100        .ok_or_else(|| AppError::NotFound(errors_msg::memory_not_found(&name, &namespace)))?;
101
102    if let Some(expected) = args.expected_updated_at {
103        if expected != current_updated_at {
104            return Err(AppError::Conflict(errors_msg::optimistic_lock_conflict(
105                expected,
106                current_updated_at,
107            )));
108        }
109    }
110
111    // v1.0.22 P0: resolve optional `--version`. When absent, uses the highest version
112    // whose `change_reason` is not 'restore' (recovers the real state, not meta-restore).
113    // Lets the forget+restore workflow function without manually reading memory_versions.
114    let target_version: i64 = match args.version {
115        Some(v) => v,
116        None => {
117            let last: Option<i64> = conn
118                .query_row(
119                    "SELECT MAX(version) FROM memory_versions
120                     WHERE memory_id = ?1 AND change_reason != 'restore'",
121                    params![memory_id],
122                    |r| r.get(0),
123                )
124                .optional()?
125                .flatten();
126            let v = last.ok_or_else(|| {
127                AppError::NotFound(errors_msg::memory_not_found(&name, &namespace))
128            })?;
129            tracing::info!(
130                "restore --version omitted; using latest non-restore version: {}",
131                v
132            );
133            v
134        }
135    };
136
137    let version_row: (String, String, String, String, String) = {
138        let mut stmt = conn.prepare(
139            "SELECT name, type, description, body, metadata
140             FROM memory_versions
141             WHERE memory_id = ?1 AND version = ?2",
142        )?;
143
144        stmt.query_row(params![memory_id, target_version], |r| {
145            Ok((r.get(0)?, r.get(1)?, r.get(2)?, r.get(3)?, r.get(4)?))
146        })
147        .map_err(|_| AppError::NotFound(errors_msg::version_not_found(target_version, &name)))?
148    };
149
150    let (old_name, old_type, old_description, old_body, old_metadata) = version_row;
151
152    // v1.0.21 P1-D: re-embed restored body to keep `vec_memories` synchronized
153    // with `memories`. Without this, semantic queries used the post-forget version
154    // vector, causing inconsistent recall (vec_memories=2 vs memories=3 after forget+restore).
155    output::emit_progress_i18n(
156        "Re-computing embedding for restored memory...",
157        crate::i18n::validation::runtime_pt::restore_recomputing_embedding(),
158    );
159    let embedding = crate::daemon::embed_passage_or_local(&paths.models, &old_body)?;
160    let snippet: String = old_body.chars().take(300).collect();
161
162    let tx = conn.transaction_with_behavior(rusqlite::TransactionBehavior::Immediate)?;
163
164    // deleted_at = NULL reactivates soft-deleted memories; no deleted_at filter in the WHERE
165    let affected = if let Some(ts) = args.expected_updated_at {
166        tx.execute(
167            "UPDATE memories SET name=?2, type=?3, description=?4, body=?5, body_hash=?6, deleted_at=NULL
168             WHERE id=?1 AND updated_at=?7",
169            rusqlite::params![
170                memory_id,
171                old_name,
172                old_type,
173                old_description,
174                old_body,
175                blake3::hash(old_body.as_bytes()).to_hex().to_string(),
176                ts
177            ],
178        )?
179    } else {
180        tx.execute(
181            "UPDATE memories SET name=?2, type=?3, description=?4, body=?5, body_hash=?6, deleted_at=NULL
182             WHERE id=?1",
183            rusqlite::params![
184                memory_id,
185                old_name,
186                old_type,
187                old_description,
188                old_body,
189                blake3::hash(old_body.as_bytes()).to_hex().to_string()
190            ],
191        )?
192    };
193
194    if affected == 0 {
195        return Err(AppError::Conflict(errors_msg::concurrent_process_conflict()));
196    }
197
198    let next_v = versions::next_version(&tx, memory_id)?;
199
200    versions::insert_version(
201        &tx,
202        memory_id,
203        next_v,
204        &old_name,
205        &old_type,
206        &old_description,
207        &old_body,
208        &old_metadata,
209        None,
210        "restore",
211    )?;
212
213    // v1.0.21 P1-D: ressincronizar vec_memories com o body restaurado.
214    memories::upsert_vec(
215        &tx, memory_id, &namespace, &old_type, &embedding, &old_name, &snippet,
216    )?;
217
218    tx.commit()?;
219
220    conn.execute_batch("PRAGMA wal_checkpoint(TRUNCATE);")?;
221
222    output::emit_json(&RestoreResponse {
223        action: "restored".to_string(),
224        memory_id,
225        name: old_name,
226        version: next_v,
227        restored_from: target_version,
228        elapsed_ms: start.elapsed().as_millis() as u64,
229    })?;
230
231    Ok(())
232}
233
234#[cfg(test)]
235mod tests {
236    use crate::errors::AppError;
237
238    #[test]
239    fn optimistic_lock_conflict_returns_exit_3() {
240        let err = AppError::Conflict(
241            "optimistic lock conflict: expected updated_at=50, but current is 99".to_string(),
242        );
243        assert_eq!(err.exit_code(), 3);
244        assert!(err.to_string().contains("conflict"));
245    }
246
247    #[test]
248    fn restore_response_includes_action_field() {
249        let resp = super::RestoreResponse {
250            action: "restored".to_string(),
251            memory_id: 1,
252            name: "test-mem".to_string(),
253            version: 3,
254            restored_from: 2,
255            elapsed_ms: 42,
256        };
257        let json = serde_json::to_value(&resp).expect("serialization failed");
258        assert_eq!(json["action"], "restored");
259        assert_eq!(json["memory_id"], 1);
260        assert_eq!(json["version"], 3);
261        assert_eq!(json["restored_from"], 2);
262    }
263}
sqlite_graphrag/commands/restore.rs

sqlite_graphrag/commands/
restore.rs
