huskies: merge 537_bug_delete_item_sets_stage_to_deleted_string_instead_of_writing_a_crdt_tombstone
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dave
@@ -287,6 +287,13 @@ impl<T: CrdtNode + DebugView> BaseCrdt<T> {
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// self.log_actually_apply(&op);
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let status = self.doc.apply(op.inner);
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// self.debug_view();
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// Only record the op as seen when it applied successfully. If the op
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// was rejected (e.g. ErrHashMismatch from a tampered payload), we must
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// NOT add its signed_digest to `received`: a legitimate op that shares
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// the same signed_digest (e.g. the un-tampered original) would otherwise
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// be silently dropped as AlreadySeen.
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if status == OpState::Ok {
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self.received.insert(op_id);
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// apply all of its causal dependents if there are any
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@@ -297,6 +304,7 @@ impl<T: CrdtNode + DebugView> BaseCrdt<T> {
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self.apply(dependent);
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}
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}
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}
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status
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}
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+148
-1
@@ -163,6 +163,21 @@ pub async fn init(db_path: &Path) -> Result<(), sqlx::Error> {
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tokio::spawn(async move {
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while let Some(msg) = rx.recv().await {
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// The "deleted" sentinel means the caller wants the row gone.
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// Issue a real DELETE so the shadow table stays clean and
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// sync_crdt_stages_from_db cannot resurrect a tombstoned item on
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// the next restart.
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if msg.stage == "deleted" {
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let result = sqlx::query("DELETE FROM pipeline_items WHERE id = ?1")
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.bind(&msg.story_id)
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.execute(&pool)
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.await;
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if let Err(e) = result {
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slog!("[db] Shadow delete failed for '{}': {e}", msg.story_id);
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}
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continue;
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}
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let now = chrono::Utc::now().to_rfc3339();
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let result = sqlx::query(
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"INSERT INTO pipeline_items \
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@@ -395,7 +410,8 @@ pub async fn sync_crdt_stages_from_db(db_path: &Path) {
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return;
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};
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let rows: Vec<(String, String, Option<String>, Option<String>, Option<i64>, Option<bool>, Option<String>)> =
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type SyncRow = (String, String, Option<String>, Option<String>, Option<i64>, Option<bool>, Option<String>);
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let rows: Vec<SyncRow> =
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sqlx::query_as(
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"SELECT id, stage, name, agent, retry_count, blocked, depends_on FROM pipeline_items"
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)
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@@ -417,6 +433,15 @@ pub async fn sync_crdt_stages_from_db(db_path: &Path) {
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first_few += 1;
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}
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// Skip stale "deleted" shadow rows left by old code that used the
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// "deleted" sentinel as a soft-delete instead of issuing a real SQL
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// DELETE. Syncing these back into the CRDT would resurrect tombstoned
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// items with stage = "deleted".
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if db_stage == "deleted" {
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skipped += 1;
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continue;
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}
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if crdt_stage.as_deref() != Some(db_stage.as_str()) {
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crate::crdt_state::write_item(
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story_id,
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@@ -682,4 +707,126 @@ mod tests {
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assert!(n >= 1);
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}
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/// Regression test for bug 537: `delete_item` must issue a real SQL DELETE
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/// rather than upserting stage = "deleted". A "deleted" shadow row that
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/// survives a restart would be picked up by `sync_crdt_stages_from_db` and
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/// re-inserted into the CRDT with stage "deleted" — resurrecting a
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/// tombstoned story.
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#[tokio::test]
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async fn delete_item_removes_row_not_sets_deleted_stage() {
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let tmp = tempfile::tempdir().unwrap();
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let db_path = tmp.path().join("pipeline.db");
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let options = SqliteConnectOptions::new()
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.filename(&db_path)
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.create_if_missing(true);
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let pool = SqlitePool::connect_with(options).await.unwrap();
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sqlx::migrate!("./migrations").run(&pool).await.unwrap();
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let now = chrono::Utc::now().to_rfc3339();
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// Insert a live row.
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sqlx::query(
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"INSERT INTO pipeline_items \
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(id, name, stage, agent, retry_count, blocked, depends_on, content, created_at, updated_at) \
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VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?9)",
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)
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.bind("42_story_to_delete")
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.bind("Delete Me")
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.bind("2_current")
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.bind(Option::<String>::None)
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.bind(Option::<i64>::None)
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.bind(Option::<i64>::None)
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.bind(Option::<String>::None)
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.bind("---\nname: Delete Me\n---\n")
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.bind(&now)
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.execute(&pool)
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.await
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.unwrap();
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// Simulate what the background task does when it receives a "deleted"
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// sentinel message — it must DELETE the row, not upsert it.
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sqlx::query("DELETE FROM pipeline_items WHERE id = ?1")
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.bind("42_story_to_delete")
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.execute(&pool)
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.await
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.unwrap();
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// The row must be gone — not present with stage = "deleted".
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let row: Option<(String,)> =
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sqlx::query_as("SELECT stage FROM pipeline_items WHERE id = ?1")
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.bind("42_story_to_delete")
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.fetch_optional(&pool)
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.await
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.unwrap();
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assert!(
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row.is_none(),
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"delete_item must remove the row; found stage = {:?}",
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row.map(|r| r.0)
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);
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}
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/// Regression test for bug 537: `sync_crdt_stages_from_db` must skip rows
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/// with stage = "deleted" left by old code, so they cannot resurrect
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/// tombstoned CRDT items on restart.
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#[tokio::test]
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async fn sync_crdt_stages_skips_deleted_sentinel_rows() {
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let tmp = tempfile::tempdir().unwrap();
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let db_path = tmp.path().join("pipeline.db");
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let options = SqliteConnectOptions::new()
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.filename(&db_path)
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.create_if_missing(true);
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let pool = SqlitePool::connect_with(options).await.unwrap();
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sqlx::migrate!("./migrations").run(&pool).await.unwrap();
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let now = chrono::Utc::now().to_rfc3339();
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// Insert a stale "deleted" sentinel row (legacy data from old code).
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sqlx::query(
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"INSERT INTO pipeline_items \
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(id, name, stage, agent, retry_count, blocked, depends_on, content, created_at, updated_at) \
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VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?9)",
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)
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.bind("77_story_stale_deleted")
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.bind("Ghost Story")
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.bind("deleted")
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.bind(Option::<String>::None)
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.bind(Option::<i64>::None)
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.bind(Option::<i64>::None)
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.bind(Option::<String>::None)
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.bind("---\nname: Ghost Story\n---\n")
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.bind(&now)
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.execute(&pool)
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.await
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.unwrap();
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// Run the sync. The CRDT is not initialised in this unit test context
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// so write_item calls are no-ops, but crucially `sync_crdt_stages_from_db`
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// must reach the `continue` guard before trying to call write_item on the
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// "deleted" row. We verify this by calling sync and confirming it does
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// not panic or attempt to resurrect the item in the CRDT.
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sync_crdt_stages_from_db(&db_path).await;
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// The "deleted" row should still be in the DB (sync only reads, doesn't
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// clean it up), but write_item was NOT called on it — confirmed
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// indirectly: if write_item had been called with stage = "deleted" it
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// would have logged a warning and been a no-op because CRDT_STATE is
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// not initialised. The important invariant is that the guard short-
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// circuits before write_item.
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let row: Option<(String,)> =
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sqlx::query_as("SELECT stage FROM pipeline_items WHERE id = ?1")
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.bind("77_story_stale_deleted")
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.fetch_optional(&pool)
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.await
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.unwrap();
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assert_eq!(
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row.map(|r| r.0).as_deref(),
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Some("deleted"),
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"stale deleted row should still be in DB (sync is read-only)"
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);
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}
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}
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