perf(index): faster fresh indexing + parallel reference resolution, byte-identical graphs (#1305)

* perf(index): ~34% faster fresh indexing, byte-identical graphs

Profiling a fresh init on a medium TS repo (excalidraw, 657 files) showed
the main thread as the critical path: per-row SQLite statement calls,
repeated import-resolution walks, and per-row FTS trigger firings, with
the parse workers ~75% idle behind it. This lands the semantics-preserving
tranche of fixes:

- Multi-row batched INSERTs (nodes/edges/unresolved refs/name segments)
  behind cached per-batch-size prepared statements; row order preserved,
  so rowid-based resolution determinism (#1015) is unchanged.
- storeFileBundle: one transaction per file instead of four; nested
  transaction() calls now flatten (BEGIN-in-BEGIN previously threw, so no
  caller depended on nested rollback).
- Dedicated store-writer thread for the fresh-DB bulk path (bundles
  applied in file order on a single writer connection; main thread does
  no DB work during the parse loop). Kill switch: CODEGRAPH_NO_STORE_WORKER=1.
- Bulk FTS mode: drop the nodes_fts sync triggers during the bulk load,
  rebuild once at the end; crash inside the window self-heals on the
  next open.
- Per-context memos for resolveImportPath/findExportedSymbol + a per-file
  exported-symbol index, invalidated exactly where clearCaches() already
  resets the resolver's own caches.
- Fast-init on completely fresh DBs (journal in memory, no fsync until
  the index completes; interrupted init re-runs from scratch). Kill
  switch: CODEGRAPH_NO_FAST_INIT=1.
- MaybeYield returns undefined on the not-due path so per-ref yield
  checks stop paying a promise + microtask hop each.
- Parse pool prewarm for bulk indexing; compile-cache enabled at CLI and
  worker entry points.

Excalidraw fresh init: 5.11s -> 3.36s median (n=5, warm cache, M-series).
Graph dumps byte-identical across init, re-index, and sync paths; full
suite green (2403 passed).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* perf(resolution): parallel reference resolution with canonical admission

Fan resolution batches across a pool of read-only worker threads, each
hosting a full ReferenceResolver over its own SQLite connection; results
are admitted on the main thread in chunk order, so edge insertion order,
row cleanup, failure parking, and deferred post-pass queues are exactly
the sequence the single-threaded loop produces. Per-ref inputs match the
baseline because the sequential path already resolves each batch against
the state committed BEFORE that batch.

Validated byte-identical on excalidraw (pool forced on) and apache/dubbo
(4,048 Java files): dubbo full index 39s -> 19s (2.05x) with identical
graph dumps (91,495 nodes / 223,953 edges).

The pool only engages when total pending refs clear a threshold (default
150k, CODEGRAPH_PARALLEL_RESOLVE_MIN to tune, CODEGRAPH_NO_PARALLEL_RESOLVE=1
to disable): measured on a ~58k-ref repo the workers' boot CPU contends
with resolution on the same cores and makes indexing slower, so small
repos keep the sequential path. When fast-init left the DB in
memory-journal mode, WAL is restored before resolution only when the pool
will run (readers + rollback-journal writers don't mix).

Also: sqlite adapter readOnly open support.

TreeCursor spine rewrite of the body walker was built, measured neutral
on real repos and equal in a 20k-child microbench (web-tree-sitter's
namedChild(i) is not quadratic in this binding), and rejected — per-node
JS<->WASM marshaling is the floor, which a traversal swap cannot remove.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Colby Mchenry
2026-07-16 14:21:15 -05:00
committed by GitHub
co-authored by Claude Fable 5
parent 246aee8373
commit 5736e24bb6
16 changed files with 1327 additions and 92 deletions
+2
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@@ -11,6 +11,8 @@ and adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
### New Features
- Reference resolution now runs in parallel on large projects. When a project has enough pending references to make it worthwhile (roughly 150k+, typical for big Java/Kotlin/Spring codebases), resolution fans out across worker threads while results are applied in the exact order the single-threaded path would have used — the graph comes out byte-for-byte identical, about twice as fast end-to-end on a 4,000-file Java project in our testing. Small projects keep the single-threaded path automatically (the fan-out costs more than it saves there). Set `CODEGRAPH_NO_PARALLEL_RESOLVE=1` to disable, or `CODEGRAPH_PARALLEL_RESOLVE_MIN=<count>` to tune when it engages.
- Indexing is significantly faster — a fresh `codegraph init` on a medium TypeScript project takes about a third less wall-clock time, with the same graph produced byte-for-byte. The gains come from batching database writes, storing files on a dedicated writer thread, memoizing repeated import-resolution lookups, skipping per-row search-index maintenance during the bulk build (rebuilt once at the end), and — on completely fresh databases only — deferring disk durability until the index completes, since an interrupted first index is simply re-run. Set `CODEGRAPH_NO_FAST_INIT=1` to keep full crash-durability during the initial build, or `CODEGRAPH_NO_STORE_WORKER=1` to store on the main thread.
- `codegraph install` and `codegraph upgrade` now offer CodeGraph Pro beta access after finishing — answer yes, type your email, and you join the same waitlist as the getcodegraph.com homepage form. Strictly opt-in and asked at most once per machine total: nothing is sent unless you say yes and enter an email, either answer is remembered so no later install or upgrade ever re-asks, and non-interactive runs (`--yes`, scripts, CI) never see the question.
- Every release is now cryptographically verifiable: npm packages publish with npm provenance (the "Provenance" badge on npmjs.com, proving each version was built by this repository's release workflow from a specific commit), and the GitHub Release bundles carry signed build attestations you can check with `gh attestation verify <file> -R colbymchenry/codegraph`.
+9
View File
@@ -28,6 +28,15 @@
// otherwise blinds the PPID watchdog forever (#1185) — see early-ppid.ts.
import '../mcp/early-ppid';
// Persist V8 compile artifacts across runs (Node ≥22.8). Every invocation —
// and every worker thread, which re-requires the whole extraction module
// graph — skips recompiling unchanged sources. Worth hundreds of ms of
// worker-boot latency per bulk index; harmless no-op when unavailable.
try {
// eslint-disable-next-line @typescript-eslint/no-require-imports
(require('node:module') as { enableCompileCache?: () => void }).enableCompileCache?.();
} catch { /* cache is best-effort */ }
import { Command } from 'commander';
import * as path from 'path';
import * as fs from 'fs';
+69
View File
@@ -112,9 +112,78 @@ export class DatabaseConnection {
runMigrations(db, currentVersion);
}
// Self-heal a bulk-load window that never closed (crash between
// beginBulkNodeLoad and endBulkNodeLoad): the FTS triggers are missing and
// nodes_fts is stale. Rebuild + recreate so search stays in sync.
conn.healBulkNodeLoad();
return conn;
}
/**
* FTS maintenance triggers dropped/recreated around a bulk load.
* Names must match schema.sql.
*/
private static readonly FTS_TRIGGER_NAMES = ['nodes_ai', 'nodes_ad', 'nodes_au'] as const;
/**
* Enter bulk-load mode: drop the per-row FTS sync triggers so mass node
* inserts skip per-row tokenization. MUST be paired with endBulkNodeLoad()
* (use try/finally); a crash inside the window is healed on the next open().
* The window is DB-wide (triggers are schema objects), which is safe because
* endBulkNodeLoad() rebuilds nodes_fts from the nodes table wholesale any
* row written by anyone during the window is captured by the rebuild.
*/
beginBulkNodeLoad(): void {
for (const t of DatabaseConnection.FTS_TRIGGER_NAMES) {
this.db.exec(`DROP TRIGGER IF EXISTS ${t}`);
}
}
/**
* Leave bulk-load mode: rebuild the whole FTS index from the nodes table in
* one pass (far cheaper than per-row trigger firings), then recreate the
* triggers by re-running schema.sql (idempotent everything in it is
* IF NOT EXISTS).
*/
endBulkNodeLoad(): void {
this.db.exec(`INSERT INTO nodes_fts(nodes_fts) VALUES('rebuild')`);
this.recreateFtsTriggers();
}
/** Recreate the FTS triggers + rebuild if a bulk-load window never closed. */
private healBulkNodeLoad(): void {
const row = this.db
.prepare(
`SELECT count(*) AS c FROM sqlite_master WHERE type = 'trigger' AND name IN ('nodes_ai','nodes_ad','nodes_au')`
)
.get() as { c: number } | undefined;
if ((row?.c ?? 0) >= DatabaseConnection.FTS_TRIGGER_NAMES.length) return;
this.endBulkNodeLoad();
}
/**
* Recreate the FTS sync triggers from schema.sql extracted from the file
* rather than duplicated here so the DDL cannot drift from the schema.
* (Re-execing the whole schema is not an option: it contains data INSERTs
* that are not idempotent, e.g. schema_versions.)
*/
private recreateFtsTriggers(): void {
const schemaPath = path.join(__dirname, 'schema.sql');
const schema = fs.readFileSync(schemaPath, 'utf-8');
const triggerDdls = schema.match(
/CREATE TRIGGER IF NOT EXISTS nodes_a[idu]\b[\s\S]*?END;/g
);
if (!triggerDdls || triggerDdls.length !== DatabaseConnection.FTS_TRIGGER_NAMES.length) {
throw new Error(
`schema.sql: expected ${DatabaseConnection.FTS_TRIGGER_NAMES.length} nodes FTS triggers, found ${triggerDdls?.length ?? 0}`
);
}
for (const ddl of triggerDdls) {
this.db.exec(ddl);
}
}
/**
* Get the underlying database instance
*/
+202 -15
View File
@@ -245,6 +245,46 @@ export class QueryBuilder {
private segmentedNames: Set<string> = new Set();
private static readonly MAX_SEGMENTED_NAMES = 65536;
// Multi-row INSERT statements, cached per (statement kind × row count). The
// bulk write path decomposes N rows into a few fixed batch sizes so each
// size's statement is prepared once and reused — one .run() binds a whole
// chunk instead of one row, which is where the per-call overhead lives.
// Row order within and across chunks is the input order, so rowid assignment
// (and therefore resolution's insertion-order disambiguation) is identical
// to the one-row-per-run path.
private batchStmts: Map<string, SqliteStatement> = new Map();
private static readonly BATCH_SIZES: readonly number[] = [128, 32, 8, 1];
/**
* Run `rows` through a multi-row `INSERT` built as `head + (tuple,)*n`,
* decomposed greedily into the cached batch sizes. Preserves row order.
*/
private runBatched(kind: string, head: string, tuple: string, rows: unknown[][]): void {
if (rows.length === 0) return;
let i = 0;
for (const size of QueryBuilder.BATCH_SIZES) {
while (rows.length - i >= size) {
const key = `${kind}:${size}`;
let stmt = this.batchStmts.get(key);
if (!stmt) {
stmt = this.db.prepare(head + new Array(size).fill(tuple).join(','));
this.batchStmts.set(key, stmt);
}
if (size === 1) {
stmt.run(...rows[i]!);
} else {
const params: unknown[] = [];
for (let r = 0; r < size; r++) {
const row = rows[i + r]!;
for (let c = 0; c < row.length; c++) params.push(row[c]);
}
stmt.run(...params);
}
i += size;
}
}
}
constructor(db: SqliteDatabase) {
this.db = db;
}
@@ -351,17 +391,14 @@ export class QueryBuilder {
/** Write `name`'s segments into name_segment_vocab (idempotent). */
private insertNameSegments(name: string): void {
if (this.segmentedNames.has(name)) return;
if (this.segmentedNames.size >= QueryBuilder.MAX_SEGMENTED_NAMES) this.segmentedNames.clear();
this.segmentedNames.add(name);
if (!this.stmts.insertNameSegment) {
this.stmts.insertNameSegment = this.db.prepare(
'INSERT OR IGNORE INTO name_segment_vocab (segment, name) VALUES (?, ?)',
);
}
for (const segment of splitIdentifierSegments(name)) {
this.stmts.insertNameSegment.run(segment, name);
}
const rows: unknown[][] = [];
this.collectNameSegmentRows(name, rows);
this.runBatched(
'insertNameSegments',
'INSERT OR IGNORE INTO name_segment_vocab (segment, name) VALUES ',
'(?,?)',
rows
);
}
/**
@@ -369,12 +406,124 @@ export class QueryBuilder {
*/
insertNodes(nodes: Node[]): void {
this.db.transaction(() => {
// Bulk path: same semantics as insertNode() per row (validation, cache
// invalidation, segment vocab), but bound as multi-row INSERTs — the
// per-.run() call overhead dominates the store phase on full indexes.
const rows: unknown[][] = [];
const segmentRows: unknown[][] = [];
for (const node of nodes) {
this.insertNode(node);
if (!node.id || !node.kind || !node.name || !node.filePath || !node.language) {
console.error('[CodeGraph] Skipping node with missing required fields:', {
id: node.id,
kind: node.kind,
name: node.name,
filePath: node.filePath,
language: node.language,
});
continue;
}
this.nodeCache.delete(node.id);
rows.push([
node.id,
node.kind,
node.name,
node.qualifiedName ?? node.name,
node.filePath,
node.language,
node.startLine ?? 0,
node.endLine ?? 0,
node.startColumn ?? 0,
node.endColumn ?? 0,
node.docstring ?? null,
node.signature ?? null,
node.visibility ?? null,
node.isExported ? 1 : 0,
node.isAsync ? 1 : 0,
node.isStatic ? 1 : 0,
node.isAbstract ? 1 : 0,
node.decorators ? JSON.stringify(node.decorators) : null,
node.typeParameters ? JSON.stringify(node.typeParameters) : null,
node.returnType ?? null,
node.updatedAt ?? Date.now(),
]);
if (this.isSegmentableKind(node.kind)) this.collectNameSegmentRows(node.name, segmentRows);
}
this.runBatched(
'insertNodes',
`INSERT OR REPLACE INTO nodes (
id, kind, name, qualified_name, file_path, language,
start_line, end_line, start_column, end_column,
docstring, signature, visibility,
is_exported, is_async, is_static, is_abstract,
decorators, type_parameters, return_type, updated_at
) VALUES `,
'(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)',
rows
);
this.runBatched(
'insertNameSegments',
'INSERT OR IGNORE INTO name_segment_vocab (segment, name) VALUES ',
'(?,?)',
segmentRows
);
})();
}
/**
* Store one file's whole extraction bundle nodes, edges, unresolved refs,
* and the file record in a SINGLE transaction. The bulk-index path calls
* this once per file instead of opening one transaction per table (#1015
* file-order commit discipline is unchanged: callers still invoke it in file
* order, and row order within is input order).
*
* Edges MUST already be endpoint-filtered by the caller (the store path
* filters to the file's own inserted node ids), so the per-file existence
* SELECT that insertEdges() pays is skipped here.
*/
storeFileBundle(bundle: {
nodes: Node[];
edges: Edge[];
refs: UnresolvedReference[];
file: FileRecord;
}): void {
this.db.transaction(() => {
this.insertNodes(bundle.nodes);
if (bundle.edges.length > 0) {
const rows: unknown[][] = [];
for (const edge of bundle.edges) {
rows.push([
edge.source,
edge.target,
edge.kind,
edge.metadata ? JSON.stringify(edge.metadata) : null,
edge.line ?? null,
edge.column ?? null,
edge.provenance ?? null,
]);
}
this.runBatched(
'insertEdges',
'INSERT OR IGNORE INTO edges (source, target, kind, metadata, line, col, provenance) VALUES ',
'(?,?,?,?,?,?,?)',
rows
);
}
if (bundle.refs.length > 0) this.insertUnresolvedRefsBatch(bundle.refs);
this.upsertFile(bundle.file);
})();
}
/**
* Collect (segment, name) rows for a name, honouring the same session-dedupe
* semantics as insertNameSegments(). Shared by the bulk write paths.
*/
private collectNameSegmentRows(name: string, out: unknown[][]): void {
if (this.segmentedNames.has(name)) return;
if (this.segmentedNames.size >= QueryBuilder.MAX_SEGMENTED_NAMES) this.segmentedNames.clear();
this.segmentedNames.add(name);
for (const segment of splitIdentifierSegments(name)) out.push([segment, name]);
}
/**
* Update an existing node
*/
@@ -510,7 +659,14 @@ export class QueryBuilder {
/** Insert segments for a batch of names in one transaction (vocab heal path). */
insertNameSegmentsBatch(names: string[]): void {
this.db.transaction(() => {
for (const name of names) this.insertNameSegments(name);
const rows: unknown[][] = [];
for (const name of names) this.collectNameSegmentRows(name, rows);
this.runBatched(
'insertNameSegments',
'INSERT OR IGNORE INTO name_segment_vocab (segment, name) VALUES ',
'(?,?)',
rows
);
})();
}
@@ -1500,12 +1656,27 @@ export class QueryBuilder {
}
const existingNodeIds = this.getExistingNodeIds([...endpointIds]);
const rows: unknown[][] = [];
for (const edge of edges) {
if (!existingNodeIds.has(edge.source) || !existingNodeIds.has(edge.target)) {
continue;
}
this.insertEdge(edge);
rows.push([
edge.source,
edge.target,
edge.kind,
edge.metadata ? JSON.stringify(edge.metadata) : null,
edge.line ?? null,
edge.column ?? null,
edge.provenance ?? null,
]);
}
this.runBatched(
'insertEdges',
'INSERT OR IGNORE INTO edges (source, target, kind, metadata, line, col, provenance) VALUES ',
'(?,?,?,?,?,?,?)',
rows
);
})();
}
@@ -1789,9 +1960,25 @@ export class QueryBuilder {
insertUnresolvedRefsBatch(refs: UnresolvedReference[]): void {
if (refs.length === 0) return;
const insert = this.db.transaction(() => {
const rows: unknown[][] = [];
for (const ref of refs) {
this.insertUnresolvedRef(ref);
rows.push([
ref.fromNodeId,
ref.referenceName,
ref.referenceKind,
ref.line,
ref.column,
ref.candidates ? JSON.stringify(ref.candidates) : null,
ref.filePath ?? '',
ref.language ?? 'unknown',
]);
}
this.runBatched(
'insertUnresolvedRefs',
'INSERT INTO unresolved_refs (from_node_id, reference_name, reference_kind, line, col, candidates, file_path, language) VALUES ',
'(?,?,?,?,?,?,?,?)',
rows
);
});
insert();
}
+21 -4
View File
@@ -49,11 +49,12 @@ export type SqliteBackend = 'node-sqlite';
*/
class NodeSqliteAdapter implements SqliteDatabase {
private _db: any;
private _txDepth = 0;
constructor(dbPath: string) {
constructor(dbPath: string, opts?: { readOnly?: boolean }) {
// eslint-disable-next-line @typescript-eslint/no-require-imports
const { DatabaseSync } = require('node:sqlite');
this._db = new DatabaseSync(dbPath);
this._db = opts?.readOnly ? new DatabaseSync(dbPath, { readOnly: true }) : new DatabaseSync(dbPath);
}
get open(): boolean {
@@ -108,13 +109,29 @@ class NodeSqliteAdapter implements SqliteDatabase {
transaction<T>(fn: (...args: any[]) => T): (...args: any[]) => T {
return (...args: any[]) => {
// Nested call (a transaction()-wrapped helper invoked from inside another
// transaction): run the body directly inside the enclosing transaction.
// BEGIN would throw "cannot start a transaction within a transaction",
// so no existing caller ever relied on nested rollback granularity —
// flattening is behavior-preserving and free.
if (this._txDepth > 0) {
this._txDepth++;
try {
return fn(...args);
} finally {
this._txDepth--;
}
}
this._db.exec('BEGIN');
this._txDepth = 1;
try {
const result = fn(...args);
this._db.exec('COMMIT');
this._txDepth = 0;
return result;
} catch (error) {
this._db.exec('ROLLBACK');
this._txDepth = 0;
throw error;
}
};
@@ -134,9 +151,9 @@ class NodeSqliteAdapter implements SqliteDatabase {
* report it per-instance MCP can open multiple project DBs in one process, so
* a process-global would race.
*/
export function createDatabase(dbPath: string): { db: SqliteDatabase; backend: SqliteBackend } {
export function createDatabase(dbPath: string, opts?: { readOnly?: boolean }): { db: SqliteDatabase; backend: SqliteBackend } {
try {
return { db: new NodeSqliteAdapter(dbPath), backend: 'node-sqlite' };
return { db: new NodeSqliteAdapter(dbPath, opts), backend: 'node-sqlite' };
} catch (error) {
const msg = error instanceof Error ? error.message : String(error);
throw new Error(
+181 -43
View File
@@ -15,6 +15,7 @@ import {
FileRecord,
ExtractionResult,
ExtractionError,
Node,
Edge,
UnresolvedReference,
ReferenceKind,
@@ -22,6 +23,7 @@ import {
import { QueryBuilder } from '../db/queries';
import { extractFromSource } from './tree-sitter';
import { ParseWorkerPool, resolveParsePoolSize, resolveParseTimeoutMs } from './parse-pool';
import { StoreWriter, StoreBundle } from './store-writer';
import { detectLanguage, isSourceFile, isLanguageSupported, isFileLevelOnlyLanguage, initGrammars, loadGrammarsForLanguages, readGrammarWasmBytes } from './grammars';
import { loadExtensionOverrides, loadIncludeIgnoredPatterns, loadExcludePatterns, loadIncludePatterns } from '../project-config';
import { isCodeGraphDataDir } from '../directory';
@@ -1493,7 +1495,13 @@ export class ExtractionOrchestrator {
// null in the normal case, or a promise to await (at this safe,
// between-transactions boundary) when the WAL has outrun the off-thread
// checkpointer past its hard cap. See db/wal-valve.ts.
walBackpressure?: () => Promise<void> | null
walBackpressure?: () => Promise<void> | null,
// Fresh-DB store offload (perf): when set, per-file store bundles are
// applied by a dedicated writer thread instead of the main thread. Only
// passed for a COMPLETELY fresh database, where the main thread performs
// no reads/writes during the parse loop, so one writer applying bundles
// in file order preserves the #1015 determinism exactly.
storeWriterOpts?: { dbPath: string; fastInit: boolean } | null
): Promise<IndexResult> {
await initGrammars();
const startTime = Date.now();
@@ -1604,11 +1612,35 @@ export class ExtractionOrchestrator {
grammarBuffers,
});
log(`Parse worker pool: ${poolSize} worker(s)`);
// Bulk index: every core will be needed — spawn the whole pool now so
// worker boot overlaps the first read batches instead of trickling in
// behind queue-pressure growth.
pool.prewarm();
} else {
// In-process fallback: load grammars locally and parse on the main thread.
await loadGrammarsForLanguages(neededLanguages);
}
// Dedicated store writer thread (fresh DB only — see the parameter doc).
// Same availability rule as the parse pool: needs the compiled worker
// (absent when running from source in tests → main-thread fallback).
const storeWorkerPath = path.join(__dirname, 'store-worker.js');
let storeWriter: StoreWriter | null = null;
if (
storeWriterOpts &&
process.env.CODEGRAPH_NO_STORE_WORKER !== '1' &&
fs.existsSync(storeWorkerPath)
) {
// Deliberately NOT awaiting ready(): worker_threads delivers messages in
// order, so bundles posted while the worker is still booting queue
// behind 'open'. A boot failure surfaces at the first drain() — same
// propagation point as a store error.
storeWriter = new StoreWriter(storeWorkerPath, storeWriterOpts.dbPath, storeWriterOpts.fastInit);
log('Store writer thread active');
}
/** Queue-depth bound for un-acked bundles (bundles hold whole node/edge arrays). */
const STORE_WRITER_WINDOW = 64;
/**
* Parse one file: on the pool when available (the promise REJECTS on a worker
* crash/timeout the caller records it and the retry pass re-attempts), or
@@ -1655,10 +1687,17 @@ export class ExtractionOrchestrator {
const bp = walBackpressure?.();
if (bp) await bp;
// Store in database on main thread (SQLite is not thread-safe)
// Store: on the writer thread when active (fresh DB — bundles applied
// in the same file order this chain dispatches them), else on the main
// thread (SQLite connections are per-thread).
if (result.nodes.length > 0 || result.errors.length === 0) {
const language = detectLanguage(filePath, content, overrides);
await this.storeExtractionResult(filePath, content, language, stats, result, commitYield);
if (storeWriter) {
storeWriter.send(this.buildFreshStoreBundle(filePath, content, language, stats, result));
await storeWriter.waitBelow(STORE_WRITER_WINDOW);
} else {
await this.storeExtractionResult(filePath, content, language, stats, result, commitYield);
}
}
if (result.errors.length > 0) {
@@ -1835,10 +1874,25 @@ export class ExtractionOrchestrator {
if (!aborted) {
await Promise.all(inFlight);
await flushOrdered();
if (flushError) throw flushError;
if (flushError) {
if (storeWriter) await storeWriter.close();
throw flushError;
}
// All bundles are posted; wait for the writer to apply them, then close
// its connection BEFORE any main-thread DB work below (retry pass,
// resolution) so exactly one connection writes at a time.
if (storeWriter) {
try {
await storeWriter.drain();
} finally {
await storeWriter.close();
storeWriter = null;
}
}
}
if (signal?.aborted || aborted) {
if (storeWriter) await storeWriter.close();
if (pool) await pool.destroy();
return {
success: false,
@@ -2203,6 +2257,49 @@ export class ExtractionOrchestrator {
// This prevents FK violations when edges reference nodes that would
// be silently skipped by insertNode() (see issue #42).
const validNodes = result.nodes.filter((n) => n.id && n.kind && n.name && n.filePath && n.language);
const insertedIds = new Set(validNodes.map((n) => n.id));
const validEdges = result.edges.filter(
(e) => insertedIds.has(e.source) && insertedIds.has(e.target)
);
const validRefs = result.unresolvedReferences
.filter((ref) => insertedIds.has(ref.fromNodeId))
.map((ref) => ({
...ref,
filePath: ref.filePath ?? filePath,
language: ref.language ?? language,
}));
// Fast path for the common case (everything fits one chunk): the whole
// file — nodes, edges, refs, file record — lands in ONE transaction with
// no event-loop yields in between. Giant generated files keep the chunked
// + yielding path below so the #850 watchdog heartbeat stays serviced.
const fitsOneChunk =
validNodes.length <= STORE_CHUNK &&
validEdges.length <= STORE_CHUNK &&
validRefs.length <= STORE_CHUNK;
if (fitsOneChunk) {
// Snapshot/re-resolution of cross-file incoming edges (below) still runs
// for the sync path; on a fresh bulk index crossFileIncomingEdges is [].
this.queries.storeFileBundle({
nodes: validNodes,
edges: validEdges,
refs: validRefs,
file: {
path: filePath,
contentHash,
language,
size: stats.size,
modifiedAt: stats.mtimeMs,
indexedAt: Date.now(),
nodeCount: result.nodes.length,
errors: result.errors.length > 0 ? result.errors : undefined,
},
});
if (crossFileIncomingEdges.length > 0) {
this.reattachCrossFileEdges(crossFileIncomingEdges, validNodes);
}
return;
}
// Insert nodes (chunked — see STORE_CHUNK above)
for (let i = 0; i < validNodes.length; i += STORE_CHUNK) {
@@ -2211,11 +2308,7 @@ export class ExtractionOrchestrator {
}
// Filter edges to only reference nodes that were actually inserted
if (result.edges.length > 0) {
const insertedIds = new Set(validNodes.map((n) => n.id));
const validEdges = result.edges.filter(
(e) => insertedIds.has(e.source) && insertedIds.has(e.target)
);
if (validEdges.length > 0) {
for (let i = 0; i < validEdges.length; i += STORE_CHUNK) {
this.queries.insertEdges(validEdges.slice(i, i + STORE_CHUNK));
await onYield?.();
@@ -2241,43 +2334,13 @@ export class ExtractionOrchestrator {
// a ref from the target's plain name would strip receiver/qualifier
// context and risk a rebind a full re-index would never make.
if (crossFileIncomingEdges.length > 0) {
const newNodesByKindName = new Map<string, string>();
for (const n of validNodes) {
newNodesByKindName.set(`${n.kind}\0${n.name}`, n.id);
}
const reinserted: Edge[] = [];
const resurrected: UnresolvedReference[] = [];
for (const e of crossFileIncomingEdges) {
const newTargetId = newNodesByKindName.get(`${e.targetKind}\0${e.targetName}`);
if (newTargetId) {
reinserted.push({ source: e.source, target: newTargetId, kind: e.kind, metadata: e.metadata, line: e.line, column: e.column, provenance: e.provenance });
} else {
const ref = resurrectRefFromDroppedEdge(e);
if (ref) resurrected.push(ref);
}
}
if (reinserted.length > 0) {
this.queries.insertEdges(reinserted);
}
if (resurrected.length > 0) {
this.queries.insertUnresolvedRefsBatch(resurrected);
}
this.reattachCrossFileEdges(crossFileIncomingEdges, validNodes);
}
// Insert unresolved references in batch with denormalized filePath/language
if (result.unresolvedReferences.length > 0) {
const insertedIds = new Set(validNodes.map((n) => n.id));
const refsWithContext = result.unresolvedReferences
.filter((ref) => insertedIds.has(ref.fromNodeId))
.map((ref) => ({
...ref,
filePath: ref.filePath ?? filePath,
language: ref.language ?? language,
}));
for (let i = 0; i < refsWithContext.length; i += STORE_CHUNK) {
this.queries.insertUnresolvedRefsBatch(refsWithContext.slice(i, i + STORE_CHUNK));
await onYield?.();
}
for (let i = 0; i < validRefs.length; i += STORE_CHUNK) {
this.queries.insertUnresolvedRefsBatch(validRefs.slice(i, i + STORE_CHUNK));
await onYield?.();
}
// Insert file record
@@ -2294,6 +2357,81 @@ export class ExtractionOrchestrator {
this.queries.upsertFile(fileRecord);
}
/**
* Build one file's store bundle for the FRESH-DB path: no existing-file
* check, no cross-file edge snapshot (both are re-index concerns a fresh
* database has neither). Filters mirror storeExtractionResult exactly.
*/
private buildFreshStoreBundle(
filePath: string,
content: string,
language: Language,
stats: fs.Stats,
result: ExtractionResult
): StoreBundle {
const validNodes = result.nodes.filter((n) => n.id && n.kind && n.name && n.filePath && n.language);
const insertedIds = new Set(validNodes.map((n) => n.id));
const validEdges = result.edges.filter(
(e) => insertedIds.has(e.source) && insertedIds.has(e.target)
);
const validRefs = result.unresolvedReferences
.filter((ref) => insertedIds.has(ref.fromNodeId))
.map((ref) => ({
...ref,
filePath: ref.filePath ?? filePath,
language: ref.language ?? language,
}));
return {
nodes: validNodes,
edges: validEdges,
refs: validRefs,
file: {
path: filePath,
contentHash: hashContent(content),
language,
size: stats.size,
modifiedAt: stats.mtimeMs,
indexedAt: Date.now(),
nodeCount: result.nodes.length,
errors: result.errors.length > 0 ? result.errors : undefined,
},
};
}
/**
* Re-attach cross-file incoming edges snapshotted before a re-index delete
* (#899): re-resolve each edge's target to the re-indexed node's new id by
* (kind, name); targets that vanished are resurrected as their original
* unresolved ref (#1240's removal-side counterpart) when the edge carries
* its refName stamp.
*/
private reattachCrossFileEdges(
crossFileIncomingEdges: Array<Edge & { targetKind: string; targetName: string; sourceFilePath: string; sourceLanguage: Language }>,
validNodes: Node[]
): void {
const newNodesByKindName = new Map<string, string>();
for (const n of validNodes) {
newNodesByKindName.set(`${n.kind}\0${n.name}`, n.id);
}
const reinserted: Edge[] = [];
const resurrected: UnresolvedReference[] = [];
for (const e of crossFileIncomingEdges) {
const newTargetId = newNodesByKindName.get(`${e.targetKind}\0${e.targetName}`);
if (newTargetId) {
reinserted.push({ source: e.source, target: newTargetId, kind: e.kind, metadata: e.metadata, line: e.line, column: e.column, provenance: e.provenance });
} else {
const ref = resurrectRefFromDroppedEdge(e);
if (ref) resurrected.push(ref);
}
}
if (reinserted.length > 0) {
this.queries.insertEdges(reinserted);
}
if (resurrected.length > 0) {
this.queries.insertUnresolvedRefsBatch(resurrected);
}
}
/**
* Sync the index with the current file state.
*
+15
View File
@@ -208,6 +208,21 @@ export class ParseWorkerPool {
this.spawnOne(); // one eager warm worker, ready for the first parse
}
/**
* Spawn the whole pool up front. The default demand-driven growth avoids
* paying worker boot for small jobs, but a bulk index KNOWS every core will
* be needed on a fast repo the one-by-one ramp-up otherwise consumes most
* of the parse phase (each worker boot is a fresh Node isolate + grammar
* load, ~hundreds of ms, and growth only triggers as queue pressure builds).
*/
prewarm(): void {
while (this.workers.size < this.maxSize) {
const before = this.workers.size;
this.spawnOne();
if (this.workers.size === before) break; // spawn failed / breaker tripped
}
}
/** Pool size cap (for logging). */
get size(): number { return this.maxSize; }
+8
View File
@@ -5,6 +5,14 @@
* stays unblocked and the UI animation renders smoothly.
*/
// Compile cache FIRST: the worker's boot cost is dominated by re-requiring
// the extraction module graph; the persistent V8 cache (Node ≥22.8) makes
// that a bytecode load instead of a recompile. Safe no-op when unavailable.
try {
// eslint-disable-next-line @typescript-eslint/no-require-imports
(require('node:module') as { enableCompileCache?: () => void }).enableCompileCache?.();
} catch { /* cache is best-effort */ }
import { parentPort } from 'worker_threads';
import { extractFromSource } from './tree-sitter';
import { detectLanguage, loadGrammarsForLanguages, resetParser } from './grammars';
+99
View File
@@ -0,0 +1,99 @@
/**
* Store worker dedicated writer thread for the bulk-index store phase.
*
* During a fresh full index the main thread's biggest serial cost is executing
* the per-file INSERT batches. This worker owns that work on its own SQLite
* connection: the orchestrator posts one message per file (in file order) and
* the worker applies them in arrival order, which preserves the #1015
* insertion-order determinism exactly as if the main thread had run the same
* calls. The main thread performs NO database access while the writer is
* active (fresh-DB path only), so there is no cross-connection contention.
*
* Protocol (main worker):
* {type:'open', dbPath, fastInit} open connection, reply {type:'ready'}
* {type:'bundle', bundle} apply one file's store bundle
* {type:'drain', id} reply {type:'drained', id} (in-order all prior bundles applied)
* {type:'close'} close DB and exit
* Worker main: {type:'ready'} | {type:'drained', id} | {type:'error', message}
*
* A bundle failure does not kill the worker; the first error is reported and
* the client surfaces it at drain(), matching the main-thread path where a
* store exception propagates out of the ordered-flush chain.
*/
// Compile cache FIRST — same worker-boot rationale as parse-worker.ts.
try {
// eslint-disable-next-line @typescript-eslint/no-require-imports
(require('node:module') as { enableCompileCache?: () => void }).enableCompileCache?.();
} catch { /* cache is best-effort */ }
import { parentPort } from 'worker_threads';
import { QueryBuilder } from '../db/queries';
import { createDatabase, SqliteDatabase } from '../db/sqlite-adapter';
import type { StoreBundle } from './store-writer';
if (!parentPort) {
throw new Error('store-worker must be run as a worker thread');
}
const port = parentPort;
let db: SqliteDatabase | null = null;
let queries: QueryBuilder | null = null;
type InMessage =
| { type: 'open'; dbPath: string; fastInit: boolean }
| { type: 'bundle'; bundle: StoreBundle }
| { type: 'drain'; id: number }
| { type: 'close' };
port.on('message', (msg: InMessage) => {
try {
switch (msg.type) {
case 'open': {
const created = createDatabase(msg.dbPath);
db = created.db;
// Mirrors db/index.ts configureConnection, with the same fast-init
// durability trade the main connection applies for fresh builds.
db.pragma('busy_timeout = 5000');
db.pragma('foreign_keys = ON');
if (msg.fastInit) {
db.pragma('journal_mode = MEMORY');
db.pragma('synchronous = OFF');
} else {
db.pragma('synchronous = NORMAL');
}
db.pragma('cache_size = -64000');
db.pragma('temp_store = MEMORY');
queries = new QueryBuilder(db);
port.postMessage({ type: 'ready' });
break;
}
case 'bundle': {
if (!queries) throw new Error('store-worker: bundle before open');
queries.storeFileBundle(msg.bundle);
port.postMessage({ type: 'ack' });
break;
}
case 'drain': {
port.postMessage({ type: 'drained', id: msg.id });
break;
}
case 'close': {
try {
db?.close();
} catch {
/* already closed */
}
process.exit(0);
break;
}
}
} catch (err) {
// The error reply doubles as the bundle's ack so the client's outstanding
// counter still drains after a failure.
port.postMessage({
type: 'error',
message: err instanceof Error ? err.message : String(err),
});
}
});
+146
View File
@@ -0,0 +1,146 @@
/**
* StoreWriter main-thread client for the store worker (see store-worker.ts).
*
* Used ONLY on the fresh-DB bulk path: bundles are posted in file order and the
* worker applies them in arrival order, so rowid assignment (and therefore
* resolution's insertion-order disambiguation) is byte-identical to the
* main-thread store. Kill switch: CODEGRAPH_NO_STORE_WORKER=1.
*/
import { Worker } from 'worker_threads';
import { Node, Edge, UnresolvedReference, FileRecord } from '../types';
/** One file's complete store payload (pre-filtered — see storeFileBundle). */
export interface StoreBundle {
nodes: Node[];
edges: Edge[];
refs: UnresolvedReference[];
file: FileRecord;
}
export class StoreWriter {
private worker: Worker;
private readyPromise: Promise<void>;
private firstError: Error | null = null;
private drainWaiters = new Map<number, { resolve: () => void; reject: (e: Error) => void }>();
private nextDrainId = 0;
private exited = false;
/** Bundles posted but not yet acked — the queue-depth backpressure signal. */
private outstanding = 0;
private belowWaiters: Array<{ limit: number; resolve: () => void }> = [];
constructor(workerScriptPath: string, dbPath: string, fastInit: boolean) {
this.worker = new Worker(workerScriptPath);
let readyResolve!: () => void;
let readyReject!: (e: Error) => void;
this.readyPromise = new Promise<void>((resolve, reject) => {
readyResolve = resolve;
readyReject = reject;
});
this.worker.on('message', (msg: { type: string; id?: number; message?: string }) => {
if (msg.type === 'ready') {
readyResolve();
} else if (msg.type === 'ack') {
this.settleOne();
} else if (msg.type === 'drained' && msg.id !== undefined) {
const waiter = this.drainWaiters.get(msg.id);
this.drainWaiters.delete(msg.id);
if (!waiter) return;
if (this.firstError) waiter.reject(this.firstError);
else waiter.resolve();
} else if (msg.type === 'error') {
if (!this.firstError) this.firstError = new Error(`store worker: ${msg.message}`);
this.settleOne(); // the error reply is also the failed bundle's ack
}
});
this.worker.on('error', (err) => {
this.failAll(err instanceof Error ? err : new Error(String(err)));
readyReject(this.firstError!);
});
this.worker.on('exit', (code) => {
this.exited = true;
if (code !== 0) {
this.failAll(new Error(`store worker exited with code ${code}`));
readyReject(this.firstError!);
} else if (this.drainWaiters.size > 0 || this.belowWaiters.length > 0) {
// A clean exit with waiters pending is a protocol violation (only
// close() should end the worker) — settle the waiters instead of
// hanging the index forever.
this.failAll(new Error('store worker exited before drain completed'));
}
});
this.worker.postMessage({ type: 'open', dbPath, fastInit });
// The worker holds the event loop open only until close(); don't unref —
// bundles must never be dropped because main ran out of work.
}
private failAll(err: Error): void {
if (!this.firstError) this.firstError = err;
for (const [, waiter] of this.drainWaiters) waiter.reject(this.firstError);
this.drainWaiters.clear();
this.outstanding = 0;
const waiters = this.belowWaiters;
this.belowWaiters = [];
for (const w of waiters) w.resolve(); // send() will surface firstError
}
private settleOne(): void {
if (this.outstanding > 0) this.outstanding--;
if (this.belowWaiters.length === 0) return;
const still: typeof this.belowWaiters = [];
for (const w of this.belowWaiters) {
if (this.outstanding < w.limit) w.resolve();
else still.push(w);
}
this.belowWaiters = still;
}
ready(): Promise<void> {
return this.readyPromise;
}
/** Post one file's bundle. Throws immediately if the writer already failed. */
send(bundle: StoreBundle): void {
if (this.firstError) throw this.firstError;
if (this.exited) throw new Error('store worker already exited');
this.outstanding++;
this.worker.postMessage({ type: 'bundle', bundle });
}
/** Backpressure: resolves once fewer than `limit` bundles are un-acked. */
waitBelow(limit: number): Promise<void> {
if (this.firstError || this.exited || this.outstanding < limit) return Promise.resolve();
return new Promise<void>((resolve) => {
this.belowWaiters.push({ limit, resolve });
});
}
/** Resolves when every bundle posted before this call has been applied. */
drain(): Promise<void> {
if (this.firstError) return Promise.reject(this.firstError);
if (this.exited) return Promise.reject(new Error('store worker already exited'));
const id = this.nextDrainId++;
const p = new Promise<void>((resolve, reject) => {
this.drainWaiters.set(id, { resolve, reject });
});
this.worker.postMessage({ type: 'drain', id });
return p;
}
/** Close the worker's DB connection and join the thread. */
async close(): Promise<void> {
if (this.exited) return;
this.worker.postMessage({ type: 'close' });
await new Promise<void>((resolve) => {
const t = setTimeout(() => {
void this.worker.terminate().then(() => resolve());
}, 5000);
this.worker.once('exit', () => {
clearTimeout(t);
resolve();
});
});
}
}
+59 -8
View File
@@ -55,6 +55,7 @@ import { deriveProjectNameTokens } from './search/query-utils';
import { CodeGraphPackageVersion } from './mcp/version';
import { segmentLookupVariants, splitIdentifierSegments } from './search/identifier-segments';
import { createYielder } from './resolution/cooperative-yield';
import { minRefsForPool } from './resolution/resolver-pool';
// Re-export types for consumers
export * from './types';
@@ -445,7 +446,21 @@ export class CodeGraph {
// the final fold-up before the interval is restored in the finally.
// Kill switch: CODEGRAPH_NO_WAL_DEFER=1. Non-WAL journal modes (some
// network filesystems) have no WAL to defer — skip.
const deferWal = process.env.CODEGRAPH_NO_WAL_DEFER !== '1' && this.db.getJournalMode() === 'wal';
// Fast-init: on a COMPLETELY fresh DB, trade crash-durability for speed
// during the bulk build (journal in memory, no fsync). Safe because the
// DB is disposable until the index completes — index_state stays
// 'indexing' and a crashed init is re-run from scratch; existing DBs
// (re-index/sync) never take this path. Kill switch:
// CODEGRAPH_NO_FAST_INIT=1 (same pattern as CODEGRAPH_NO_WAL_DEFER).
const freshDb = this.queries.getNodeAndEdgeCount().nodes === 0;
const fastInit = process.env.CODEGRAPH_NO_FAST_INIT !== '1' && freshDb;
if (fastInit) {
try {
this.db.getDb().pragma('journal_mode = MEMORY');
this.db.getDb().pragma('synchronous = OFF');
} catch { /* keep WAL */ }
}
const deferWal = !fastInit && process.env.CODEGRAPH_NO_WAL_DEFER !== '1' && this.db.getJournalMode() === 'wal';
let walValve: WalCheckpointValve | null = null;
let priorAutocheckpoint = 1000;
if (deferWal) {
@@ -470,12 +485,25 @@ export class CodeGraph {
// path as every file (re-)indexes below — so a full index is also the
// orphan-cleanup pass for names deleted since the last one.
try { this.queries.clearNameSegmentVocab(); } catch { /* vocab is advisory — never fail an index over it */ }
const result = await this.orchestrator.indexAll(
options.onProgress,
options.signal,
options.verbose,
walValve ? () => walValve!.backpressure() : undefined
);
// Bulk FTS mode for the mass-insert phase: drop the per-row FTS sync
// triggers, rebuild nodes_fts once from the nodes table afterwards.
// Crash inside the window is healed on the next DatabaseConnection.open.
this.db.beginBulkNodeLoad();
let result: IndexResult;
try {
result = await this.orchestrator.indexAll(
options.onProgress,
options.signal,
options.verbose,
walValve ? () => walValve!.backpressure() : undefined,
// Store-writer offload is fresh-DB-only: with any pre-existing
// data the store path must read (existing-file checks, cross-file
// edge snapshots) and delete, which belongs on one thread.
freshDb ? { dbPath: this.db.getPath(), fastInit } : null
);
} finally {
this.db.endBulkNodeLoad();
}
// Fold the parse phase's WAL BEFORE the first post-parse reads
// (resolver re-init and resolution both read on the main thread):
@@ -503,6 +531,19 @@ export class CodeGraph {
// Get count without loading all refs into memory
const unresolvedCount = this.queries.getUnresolvedReferencesCount();
// Fast-init leaves the DB in memory-journal (rollback) mode, where
// the parallel resolver pool's read connections would contend with
// the main writer's exclusive commits. When the pool will actually
// run (enough pending refs), restore WAL BEFORE resolution so
// readers never block the writer; otherwise stay in the fast mode
// until the finally — sequential resolution has no readers.
if (fastInit && unresolvedCount >= minRefsForPool()) {
try {
this.db.getDb().pragma('synchronous = NORMAL');
this.db.getDb().pragma('journal_mode = WAL');
} catch { /* keep current mode; resolution still works sequentially */ }
}
options.onProgress?.({
phase: 'resolving',
current: 0,
@@ -619,6 +660,14 @@ export class CodeGraph {
if (deferWal) {
try { this.db.setWalAutocheckpoint(priorAutocheckpoint); } catch { /* connection may be closing */ }
}
if (fastInit) {
// Back to the durable defaults; journal_mode=WAL folds the MEMORY
// journal state into a normal WAL-mode database file.
try {
this.db.getDb().pragma('synchronous = NORMAL');
this.db.getDb().pragma('journal_mode = WAL');
} catch { /* connection may be closing */ }
}
this.fileLock.release();
}
});
@@ -1032,7 +1081,9 @@ export class CodeGraph {
onProgress?: (current: number, total: number) => void,
onSynthesisProgress?: (done: number, total: number) => void
): Promise<ResolutionResult> {
return this.resolver.resolveAndPersistBatched(onProgress, undefined, onSynthesisProgress);
return this.resolver.resolveAndPersistBatched(onProgress, undefined, onSynthesisProgress, {
dbPath: this.db.getPath(),
});
}
/**
+18 -6
View File
@@ -24,8 +24,16 @@
* stop killing work that is demonstrably making progress.
*/
/** Yield when more than `budgetMs` of wall-clock has passed since the last yield. */
export type MaybeYield = () => Promise<void>;
/**
* Yield when more than `budgetMs` of wall-clock has passed since the last
* yield. Returns `undefined` on the (overwhelmingly common) not-due path so a
* hot loop can skip the await entirely `await`ing an async no-op costs a
* promise allocation + microtask hop, which at hundreds of thousands of calls
* per index is real time. Callers may either `await maybeYield()` (works for
* both return shapes) or use the fast form:
* `const y = maybeYield(); if (y) await y;`
*/
export type MaybeYield = () => Promise<void> | undefined;
/** Default budget: well under the watchdog's minimum heartbeat cadence (~1s), so
* a heartbeat byte always has a chance to land between yields. */
@@ -33,9 +41,13 @@ export const DEFAULT_YIELD_BUDGET_MS = 250;
export function createYielder(budgetMs: number = DEFAULT_YIELD_BUDGET_MS): MaybeYield {
let last = Date.now();
return async function maybeYield(): Promise<void> {
if (Date.now() - last < budgetMs) return;
await new Promise<void>((resolve) => setImmediate(resolve));
last = Date.now();
return function maybeYield(): Promise<void> | undefined {
if (Date.now() - last < budgetMs) return undefined;
return new Promise<void>((resolve) =>
setImmediate(() => {
last = Date.now();
resolve();
})
);
};
}
+104 -12
View File
@@ -55,11 +55,78 @@ export function isNixPathImportRef(ref: UnresolvedRef): boolean {
/**
* Resolve an import path to an actual file
*/
// Per-context memos for the two hottest pure lookups on the resolution path:
// import-specifier → file resolution and exported-symbol lookup. Both are pure
// given a stable file set + node table, which is exactly the window between
// ReferenceResolver.clearCaches() calls — clearImportResolverMemos() is invoked
// there, so the staleness discipline matches the resolver's own caches.
const importPathMemos = new WeakMap<ResolutionContext, Map<string, string | null>>();
const exportedSymbolMemos = new WeakMap<ResolutionContext, Map<string, Node | undefined>>();
/**
* Per-file index of exported symbols, replacing repeated linear `.find`s over
* `getNodesInFile` arrays (a barrel-heavy repo scans its biggest files once
* per referencing symbol otherwise). First-wins insertion preserves exactly
* the array-order semantics of the `.find` calls it replaces.
*/
interface FileExportIndex {
byName: Map<string, Node>;
defaultComponent: Node | undefined;
defaultFnClass: Node | undefined;
}
const fileExportIndexes = new WeakMap<ResolutionContext, Map<string, FileExportIndex>>();
function getFileExportIndex(filePath: string, context: ResolutionContext): FileExportIndex {
let perFile = fileExportIndexes.get(context);
if (!perFile) {
perFile = new Map();
fileExportIndexes.set(context, perFile);
}
let idx = perFile.get(filePath);
if (!idx) {
idx = { byName: new Map(), defaultComponent: undefined, defaultFnClass: undefined };
for (const n of context.getNodesInFile(filePath)) {
if (!n.isExported) continue;
if (!idx.byName.has(n.name)) idx.byName.set(n.name, n);
if (idx.defaultComponent === undefined && n.kind === 'component') idx.defaultComponent = n;
if (idx.defaultFnClass === undefined && (n.kind === 'function' || n.kind === 'class')) idx.defaultFnClass = n;
}
perFile.set(filePath, idx);
}
return idx;
}
/** Drop the per-context memo tables (see ReferenceResolver.clearCaches). */
export function clearImportResolverMemos(context: ResolutionContext): void {
importPathMemos.delete(context);
exportedSymbolMemos.delete(context);
fileExportIndexes.delete(context);
}
export function resolveImportPath(
importPath: string,
fromFile: string,
language: Language,
context: ResolutionContext
): string | null {
let memo = importPathMemos.get(context);
if (!memo) {
memo = new Map();
importPathMemos.set(context, memo);
}
const key = `${language}\0${fromFile}\0${importPath}`;
const hit = memo.get(key);
if (hit !== undefined || memo.has(key)) return hit ?? null;
const resolved = resolveImportPathUncached(importPath, fromFile, language, context);
memo.set(key, resolved);
return resolved;
}
function resolveImportPathUncached(
importPath: string,
fromFile: string,
language: Language,
context: ResolutionContext
): string | null {
// COBOL COPY/EXEC SQL INCLUDE names a copybook member, not a path — the
// compiler searches a library, so we match against indexed file basenames.
@@ -1972,12 +2039,45 @@ function findExportedSymbol(
context: ResolutionContext,
visited: Set<string>,
depth = 0
): Node | undefined {
// Memoize fresh (top-level) lookups only: recursive re-export steps carry a
// populated `visited` set, whose contents change the reachable answer.
// Every ref to the same imported symbol repeats this exact walk, so the
// top-level memo removes the re-export chase + per-file linear scans from
// all but the first occurrence.
if (depth === 0 && visited.size === 0) {
let memo = exportedSymbolMemos.get(context);
if (!memo) {
memo = new Map();
exportedSymbolMemos.set(context, memo);
}
const key = `${filePath}\0${want.isDefault ? 1 : 0}${want.isNamespace ? 1 : 0}\0${want.exportedName}\0${want.memberName ?? ''}\0${language}`;
if (memo.has(key)) return memo.get(key);
const result = findExportedSymbolWalk(filePath, want, language, context, visited, depth);
memo.set(key, result);
return result;
}
return findExportedSymbolWalk(filePath, want, language, context, visited, depth);
}
function findExportedSymbolWalk(
filePath: string,
want: {
isDefault: boolean;
isNamespace: boolean;
exportedName: string;
memberName: string | null;
},
language: Language,
context: ResolutionContext,
visited: Set<string>,
depth: number
): Node | undefined {
if (depth > REEXPORT_MAX_DEPTH) return undefined;
if (visited.has(filePath)) return undefined;
visited.add(filePath);
const nodesInFile = context.getNodesInFile(filePath);
const exportIndex = getFileExportIndex(filePath, context);
// 1. Direct hit: the symbol is declared in this file.
if (want.isDefault) {
@@ -1987,21 +2087,13 @@ function findExportedSymbol(
// `.ts`/`.tsx` `export default fn`/`class` case. Without the component
// branch, an `export { default as X } from './X.svelte'` barrel never
// resolves and the component shows a false 0 callers (#629).
const direct =
nodesInFile.find((n) => n.isExported && n.kind === 'component') ??
nodesInFile.find(
(n) => n.isExported && (n.kind === 'function' || n.kind === 'class')
);
const direct = exportIndex.defaultComponent ?? exportIndex.defaultFnClass;
if (direct) return direct;
} else if (want.isNamespace && want.memberName) {
const direct = nodesInFile.find(
(n) => n.name === want.memberName && n.isExported
);
const direct = exportIndex.byName.get(want.memberName);
if (direct) return direct;
} else {
const direct = nodesInFile.find(
(n) => n.name === want.exportedName && n.isExported
);
const direct = exportIndex.byName.get(want.exportedName);
if (direct) return direct;
}
+120 -4
View File
@@ -17,7 +17,8 @@ import {
ImportMapping,
} from './types';
import { matchReference, matchFunctionRef, matchDottedCallChain, matchScopedCallChain, matchMethodCall, sameLanguageFamily, crossesKnownFamily } from './name-matcher';
import { resolveViaImport, resolveJvmImport, extractImportMappings, extractReExports, loadCppIncludeDirs, isPhpIncludePathRef, isCobolCopybookRef, isNixPathImportRef } from './import-resolver';
import { resolveViaImport, resolveJvmImport, extractImportMappings, extractReExports, loadCppIncludeDirs, isPhpIncludePathRef, isCobolCopybookRef, isNixPathImportRef, clearImportResolverMemos } from './import-resolver';
import { ResolverPool, minRefsForPool } from './resolver-pool';
import { detectFrameworks } from './frameworks';
import { synthesizeCallbackEdges } from './callback-synthesizer';
import { createYielder, type MaybeYield } from './cooperative-yield';
@@ -372,6 +373,9 @@ export class ReferenceResolver {
this.knownNames = null;
this.knownFiles = null;
this.cachesWarmed = false;
// The import-resolver's per-context memos assume the same stable window
// as the caches above — drop them together.
if (this.context) clearImportResolverMemos(this.context);
}
/** `readFile` through the LRU content cache (null = read failed, also cached). */
@@ -1236,7 +1240,10 @@ export class ReferenceResolver {
} else {
unresolved.push(ref);
}
await maybeYield();
// Fast-path the per-ref yield check: awaiting the async no-op costs a
// microtask hop per ref, which dominates at ~10⁵ refs (see MaybeYield).
const y = maybeYield();
if (y) await y;
}
return {
@@ -1251,6 +1258,64 @@ export class ReferenceResolver {
};
}
/**
* Resolve a list of refs and return everything the ADMISSION side needs to
* persist the outcome: resolutions, failures, the deferred post-pass refs
* this run produced (drained, so the caller owns routing them), and stats.
* This is the resolver-worker entry point it runs the exact per-ref loop
* of resolveBatchYielding, minus the main-thread yields (worker threads have
* no watchdog heartbeat to starve). Results are in input order.
*/
resolveListForAdmission(refs: UnresolvedReference[]): {
resolved: ResolvedRef[];
unresolved: UnresolvedRef[];
deferredChain: UnresolvedRef[];
deferredThisMember: UnresolvedRef[];
byMethod: Record<string, number>;
} {
this.warmCaches();
const resolved: ResolvedRef[] = [];
const unresolved: UnresolvedRef[] = [];
const byMethod: Record<string, number> = {};
for (const raw of refs) {
const ref: UnresolvedRef = {
fromNodeId: raw.fromNodeId,
referenceName: raw.referenceName,
referenceKind: raw.referenceKind,
line: raw.line,
column: raw.column,
filePath: raw.filePath || this.getFilePathFromNodeId(raw.fromNodeId),
language: raw.language || this.getLanguageFromNodeId(raw.fromNodeId),
rowId: raw.rowId,
};
const result = this.resolveOne(ref);
if (result) {
resolved.push(result);
byMethod[result.resolvedBy] = (byMethod[result.resolvedBy] || 0) + 1;
} else {
unresolved.push(ref);
}
}
return {
resolved,
unresolved,
deferredChain: this.deferredChainRefs.splice(0),
deferredThisMember: this.deferredThisMemberRefs.splice(0),
byMethod,
};
}
/**
* Re-queue deferred post-pass refs produced by resolver workers, preserving
* their admission order so resolveChainedCallsViaConformance /
* resolveDeferredThisMemberRefs process them exactly as the sequential path
* would have.
*/
appendDeferredFromWorkers(deferredChain: UnresolvedRef[], deferredThisMember: UnresolvedRef[]): void {
this.deferredChainRefs.push(...deferredChain);
this.deferredThisMemberRefs.push(...deferredThisMember);
}
/**
* Resolve and persist in batches to keep memory bounded.
* Processes unresolved references in chunks, persisting edges and cleaning
@@ -1259,7 +1324,12 @@ export class ReferenceResolver {
async resolveAndPersistBatched(
onProgress?: (current: number, total: number) => void,
batchSize: number = 5000,
onSynthesisProgress?: (done: number, total: number) => void
onSynthesisProgress?: (done: number, total: number) => void,
// When provided, big batches fan out across a read-only resolver-worker
// pool with results admitted in canonical order (see resolver-pool.ts).
// Sequential fallback on any pool failure. CODEGRAPH_NO_PARALLEL_RESOLVE=1
// disables entirely.
parallel?: { dbPath: string }
): Promise<ResolutionResult> {
// Resolution runs on the indexer's MAIN thread, and the #850 liveness
// watchdog SIGKILLs a process whose event loop stalls past its window (60s
@@ -1280,16 +1350,59 @@ export class ReferenceResolver {
byMethod: {} as Record<string, number>,
};
// Parallel pool, started immediately but never awaited up front: early
// batches run sequentially while the workers boot (module load + readonly
// DB open + framework detect + cache warm ≈ hundreds of ms), and the loop
// switches to fan-out the moment the pool reports ready — so pool boot
// costs zero wall-clock. Any failure downgrades to sequential permanently.
let pool: ResolverPool | null = null;
let poolReady = false;
if (parallel && total >= minRefsForPool()) {
pool = ResolverPool.tryCreate(parallel.dbPath, this.projectRoot);
pool?.ready().then(
() => { poolReady = true; },
() => { void pool?.destroy().catch(() => undefined); pool = null; }
);
}
// Process in batches. We always read from offset 0 because every ref the
// batch processed leaves the pending set (resolved rows are deleted,
// unresolvable ones flip to status='failed'), shifting the remaining
// pending rows forward.
let prevRemaining = Number.POSITIVE_INFINITY;
try {
while (true) {
const batch = this.queries.getUnresolvedReferencesBatch(0, batchSize);
if (batch.length === 0) break;
const result = await this.resolveBatchYielding(batch, maybeYield);
let result: ResolutionResult;
if (pool && poolReady && ResolverPool.worthParallel(batch.length)) {
try {
const out = await pool.resolveBatch(batch);
// Deferred post-pass refs ride back from the workers; re-queue them
// in admission order so the post-passes see the sequential order.
this.appendDeferredFromWorkers(out.deferredChain, out.deferredThisMember);
result = {
resolved: out.resolved,
unresolved: out.unresolved,
stats: {
total: batch.length,
resolved: out.resolved.length,
unresolved: out.unresolved.length,
byMethod: out.byMethod,
},
};
} catch (err) {
logDebug('Parallel resolution failed; falling back to sequential', {
error: err instanceof Error ? err.message : String(err),
});
await pool.destroy().catch(() => undefined);
pool = null;
result = await this.resolveBatchYielding(batch, maybeYield);
}
} else {
result = await this.resolveBatchYielding(batch, maybeYield);
}
// Persist in bounded sub-transactions with yields between: a whole
// batch's edge insert / keyed deletes are otherwise one solid
@@ -1370,6 +1483,9 @@ export class ReferenceResolver {
if (remaining >= prevRemaining) break;
prevRemaining = remaining;
}
} finally {
if (pool) await pool.destroy().catch(() => undefined);
}
// Dynamic-edge synthesis: now that all base `calls` edges are persisted,
// synthesize observer/callback dispatch edges (dispatcher → registered
+195
View File
@@ -0,0 +1,195 @@
/**
* ResolverPool main-thread client for the parallel-resolution workers.
*
* resolveBatch() splits a rowid-ordered batch into ordered chunks, fans the
* chunks across the pool, and reassembles the results IN CHUNK ORDER, so the
* caller's admission (edge inserts, row cleanup, failure parking, deferred
* post-pass queues) is byte-for-byte the sequence the single-threaded loop
* would have produced. Any worker failure fails the batch the caller falls
* back to the sequential path. Kill switch: CODEGRAPH_NO_PARALLEL_RESOLVE=1.
*/
import { Worker } from 'worker_threads';
import * as fs from 'fs';
import * as path from 'path';
import * as os from 'os';
import type { UnresolvedReference } from '../types';
import type { ResolvedRef, UnresolvedRef } from './types';
export interface ChunkResult {
resolved: ResolvedRef[];
unresolved: UnresolvedRef[];
deferredChain: UnresolvedRef[];
deferredThisMember: UnresolvedRef[];
byMethod: Record<string, number>;
}
interface PoolWorker {
worker: Worker;
ready: Promise<void>;
busy: number;
}
const MIN_PARALLEL_BATCH = 1000;
const CHUNK_SIZE = 500;
/**
* Minimum TOTAL pending refs before the pool is created at all. Pool boot
* (module load + readonly DB open + framework detect + cache warm, times N
* workers) costs real CPU that CONTENDS with sequential resolution on the
* same cores measured on a medium repo (~40k refs, ~1.2s of resolution)
* the pool made indexing slower. It pays off when resolution runs for tens
* of seconds to minutes (large JVM/Spring-class repos). Override:
* CODEGRAPH_PARALLEL_RESOLVE_MIN=<refs> (0 forces the pool on).
*/
export function minRefsForPool(): number {
const raw = process.env.CODEGRAPH_PARALLEL_RESOLVE_MIN;
if (raw !== undefined) {
const parsed = Number.parseInt(raw, 10);
if (Number.isFinite(parsed) && parsed >= 0) return parsed;
}
return 150_000;
}
export class ResolverPool {
private workers: PoolWorker[] = [];
private nextId = 0;
private waiters = new Map<number, { resolve: (r: ChunkResult) => void; reject: (e: Error) => void }>();
private failed: Error | null = null;
/**
* Create a pool when the compiled worker exists (absent when running from
* source in tests callers use the sequential path), the kill switch is
* off, and the machine has cores to spare. Returns null otherwise.
*/
static tryCreate(dbPath: string, projectRoot: string): ResolverPool | null {
if (process.env.CODEGRAPH_NO_PARALLEL_RESOLVE === '1') return null;
const workerScript = path.join(__dirname, 'resolver-worker.js');
if (!fs.existsSync(workerScript)) return null;
const size = Math.max(1, Math.min(os.cpus().length - 2, 6));
if (size < 2) return null;
try {
return new ResolverPool(workerScript, dbPath, projectRoot, size);
} catch {
return null;
}
}
private constructor(workerScript: string, dbPath: string, projectRoot: string, size: number) {
for (let i = 0; i < size; i++) {
const worker = new Worker(workerScript);
let readyResolve!: () => void;
let readyReject!: (e: Error) => void;
const ready = new Promise<void>((resolve, reject) => {
readyResolve = resolve;
readyReject = reject;
});
const pw: PoolWorker = { worker, ready, busy: 0 };
worker.on('message', (msg: { type: string; id?: number; message?: string } & Partial<ChunkResult>) => {
if (msg.type === 'ready') {
readyResolve();
} else if (msg.type === 'result' && msg.id !== undefined) {
pw.busy--;
const waiter = this.waiters.get(msg.id);
this.waiters.delete(msg.id);
waiter?.resolve({
resolved: msg.resolved!,
unresolved: msg.unresolved!,
deferredChain: msg.deferredChain!,
deferredThisMember: msg.deferredThisMember!,
byMethod: msg.byMethod!,
});
} else if (msg.type === 'error') {
pw.busy--;
const err = new Error(`resolver worker: ${msg.message}`);
if (msg.id !== undefined && this.waiters.has(msg.id)) {
const waiter = this.waiters.get(msg.id)!;
this.waiters.delete(msg.id);
waiter.reject(err);
} else {
this.fail(err);
}
}
});
worker.on('error', (err) => {
this.fail(err instanceof Error ? err : new Error(String(err)));
readyReject(this.failed!);
});
worker.on('exit', (code) => {
if (code !== 0) {
this.fail(new Error(`resolver worker exited with code ${code}`));
readyReject(this.failed!);
}
});
worker.postMessage({ type: 'open', dbPath, projectRoot });
this.workers.push(pw);
}
}
private fail(err: Error): void {
if (!this.failed) this.failed = err;
for (const [, waiter] of this.waiters) waiter.reject(this.failed);
this.waiters.clear();
}
/** Whether this batch is worth fanning out. */
static worthParallel(batchLength: number): boolean {
return batchLength >= MIN_PARALLEL_BATCH;
}
async ready(): Promise<void> {
await Promise.all(this.workers.map((w) => w.ready));
}
/**
* Resolve `refs` across the pool. Chunks preserve input order; the returned
* arrays are the in-order concatenation of the chunk results.
*/
async resolveBatch(refs: UnresolvedReference[]): Promise<ChunkResult> {
if (this.failed) throw this.failed;
const chunkPromises: Promise<ChunkResult>[] = [];
for (let i = 0; i < refs.length; i += CHUNK_SIZE) {
const chunk = refs.slice(i, i + CHUNK_SIZE);
const id = this.nextId++;
// Least-busy dispatch keeps workers evenly loaded regardless of chunk
// cost variance; result order is fixed by the promise array, not by
// completion order.
const pw = this.workers.reduce((a, b) => (b.busy < a.busy ? b : a));
pw.busy++;
chunkPromises.push(
new Promise<ChunkResult>((resolve, reject) => {
this.waiters.set(id, { resolve, reject });
pw.worker.postMessage({ type: 'resolve', id, refs: chunk });
})
);
}
const chunks = await Promise.all(chunkPromises);
const out: ChunkResult = { resolved: [], unresolved: [], deferredChain: [], deferredThisMember: [], byMethod: {} };
for (const c of chunks) {
out.resolved.push(...c.resolved);
out.unresolved.push(...c.unresolved);
out.deferredChain.push(...c.deferredChain);
out.deferredThisMember.push(...c.deferredThisMember);
for (const [k, v] of Object.entries(c.byMethod)) out.byMethod[k] = (out.byMethod[k] || 0) + v;
}
return out;
}
async destroy(): Promise<void> {
await Promise.all(
this.workers.map(
(pw) =>
new Promise<void>((resolve) => {
const t = setTimeout(() => {
void pw.worker.terminate().then(() => resolve());
}, 5000);
pw.worker.once('exit', () => {
clearTimeout(t);
resolve();
});
pw.worker.postMessage({ type: 'close' });
})
)
);
}
}
+79
View File
@@ -0,0 +1,79 @@
/**
* Resolver worker one member of the parallel-resolution pool.
*
* Opens the project database READ-ONLY on its own connection and hosts a full
* ReferenceResolver over it. The main thread partitions each resolution batch
* into ordered chunks, fans them across the pool, and ADMITS the results
* sequentially in chunk order so edge insertion order (and every cleanup /
* parking side effect) is identical to the single-threaded loop. Workers only
* ever read; all writes stay on the main thread.
*
* Visibility note: the sequential baseline resolves every ref of a batch
* against the DB state committed BEFORE that batch (edges persist after the
* whole batch resolves). Workers read exactly that same committed state, so
* per-ref inputs match the baseline ref-for-ref.
*/
// Compile cache FIRST — same worker-boot rationale as parse-worker.ts.
try {
// eslint-disable-next-line @typescript-eslint/no-require-imports
(require('node:module') as { enableCompileCache?: () => void }).enableCompileCache?.();
} catch { /* cache is best-effort */ }
import { parentPort } from 'worker_threads';
import { createDatabase, SqliteDatabase } from '../db/sqlite-adapter';
import { QueryBuilder } from '../db/queries';
import { ReferenceResolver } from './index';
import type { UnresolvedReference } from '../types';
if (!parentPort) {
throw new Error('resolver-worker must be run as a worker thread');
}
const port = parentPort;
let db: SqliteDatabase | null = null;
let resolver: ReferenceResolver | null = null;
type InMessage =
| { type: 'open'; dbPath: string; projectRoot: string }
| { type: 'resolve'; id: number; refs: UnresolvedReference[] }
| { type: 'close' };
port.on('message', (msg: InMessage) => {
try {
switch (msg.type) {
case 'open': {
const created = createDatabase(msg.dbPath, { readOnly: true });
db = created.db;
db.pragma('busy_timeout = 5000');
db.pragma('cache_size = -32000');
const queries = new QueryBuilder(db);
resolver = new ReferenceResolver(msg.projectRoot, queries);
resolver.initialize();
port.postMessage({ type: 'ready' });
break;
}
case 'resolve': {
if (!resolver) throw new Error('resolver-worker: resolve before open');
const out = resolver.resolveListForAdmission(msg.refs);
port.postMessage({ type: 'result', id: msg.id, ...out });
break;
}
case 'close': {
try {
db?.close();
} catch {
/* already closed */
}
process.exit(0);
break;
}
}
} catch (err) {
port.postMessage({
type: 'error',
id: (msg as { id?: number }).id,
message: err instanceof Error ? err.message : String(err),
});
}
});