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fix(cli): make codegraph index a full rebuild so it stops reporting 0 nodes (#874) (#894)

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`codegraph index` ran extraction against the already-populated DB without
clearing it first. On an unchanged tree every file's content hash still
matched, so the orchestrator skipped re-inserting all of them and the run
reported its delta (after - before = 0) as "0 nodes, 0 edges" — which read as
if `index` had wiped the graph. `init` only ever differed because it runs on a
freshly created, empty DB.

Clear the existing graph before re-indexing so `index` rebuilds from scratch
and reports the same complete result as a fresh `init`. `--force` keeps its
role as the home-dir/root-path override; `sync` stays the incremental path.

Adds an end-to-end regression test driving the built binary (init -> index),
asserting the graph stays populated and the summary is never "0 nodes, 0 edges".

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Colby Mchenry
2026-06-15 00:45:03 -05:00
committed by GitHub
co-authored by Claude Opus 4.8
parent ab107b325a
commit b49147eab0
3 changed files with 121 additions and 10 deletions
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src/bin/codegraph.ts
+13 -10
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@@ -602,8 +602,8 @@ program
*/
program
.command('index [path]')
.description('Index all files in the project')
.option('-f, --force', 'Force full re-index even if already indexed')
.description('Rebuild the full index from scratch (same result as a fresh init)')
.option('-f, --force', 'Index even if the path looks like your home directory or a filesystem root')
.option('-q, --quiet', 'Suppress progress output')
.option('-v, --verbose', 'Show detailed worker lifecycle and memory info')
.action(async (pathArg: string | undefined, options: { force?: boolean; quiet?: boolean; verbose?: boolean }) => {
@@ -611,7 +611,7 @@ program
try {
// Don't (re)index your home directory / a filesystem root (#845). --force
// (already "force full re-index") doubles as the override.
// doubles as the override.
const unsafe = unsafeIndexRootReason(projectPath);
if (unsafe && !options.force) {
error(`Refusing to index ${projectPath} — it looks like ${unsafe}. Pass --force to override.`);
@@ -628,8 +628,9 @@ program
const cg = await CodeGraph.open(projectPath);
if (options.quiet) {
// Quiet mode: no UI, just run
if (options.force) cg.clear();
// Quiet mode: no UI, just run. `index` is a full re-index, so clear the
// existing graph and rebuild from scratch (see the note below — #874).
cg.clear();
const result = await cg.indexAll();
if (!result.success) process.exit(1);
cg.destroy();
@@ -639,10 +640,12 @@ program
const clack = await importESM('@clack/prompts');
clack.intro('Indexing project');
if (options.force) {
cg.clear();
clack.log.info('Cleared existing index');
}
// `index` is a FULL re-index: clear the existing graph and rebuild it from
// scratch so the result is identical to a fresh `init`. Without the clear,
// indexAll() skips every unchanged file by its content hash and reports
// "0 nodes, 0 edges" against the already-populated graph — which reads as
// "index wiped my index" (#874). For fast incremental updates use `sync`.
cg.clear();
let result: IndexResult;
@@ -890,7 +893,7 @@ program
if (reindexRecommended) {
const builtWith = buildInfo.version ? `v${buildInfo.version.replace(/^v/, '')}` : 'an earlier version';
warn(`Index was built by ${builtWith}; re-index to pick up this engine's improvements.`);
info('Run "codegraph index -f" (full rebuild) or "codegraph sync"');
info('Run "codegraph index" (full rebuild) or "codegraph sync"');
console.log();
}