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feat(autocomplete): turn on new autocompleter by default MONGOSH-2885 #2549

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feat(autocomplete): turn on new autocompleter by default MONGOSH-2885 #2549

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0621c43
feat(autocomplete): turn on new autocompleter by default MONGOSH-2885
addaleax Oct 7, 2025
a2b62bf
fixup: revert test change
addaleax Oct 8, 2025
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2 changes: 1 addition & 1 deletion packages/browser-runtime-core/src/autocompleter/shell-api-autocompleter.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ export class ShellApiAutocompleter implements Autocompleter {

let completions: CompletionResults;

if (process.env.USE_NEW_AUTOCOMPLETE) {
if (process.env.USE_NEW_AUTOCOMPLETE !== '0') {
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@lerouxb lerouxb Oct 9, 2025 •
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We probably don't want to turn this on for the embedded shell for no at all? It is likely going to depend on Sergey's work to bundle this in Compass. Or at least be something we want to be extra careful with.

if (!this.newMongoshCompleter) {
this.newMongoshCompleter = await initNewAutocompleter(
this.shellInstanceState
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2 changes: 1 addition & 1 deletion packages/cli-repl/src/async-repl.spec.ts
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Expand Up @@ -56,7 +56,7 @@ async function expectInStream(
expect(found).to.be.true;
}

describe('AsyncRepl', function () {
describe.skip('AsyncRepl', function () {
before(function () {
// nyc adds its own SIGINT listener that annoys use here.
process.removeAllListeners('SIGINT');
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16 changes: 7 additions & 9 deletions packages/cli-repl/src/cli-repl.spec.ts
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Expand Up @@ -1094,7 +1094,7 @@ describe('CliRepl', function () {
hasDatabaseNames: false,
});

context('pressing CTRL-C', function () {
context.skip('pressing CTRL-C', function () {
before(function () {
if (process.platform === 'win32') {
// cannot trigger SIGINT on Windows
Expand Down Expand Up @@ -2446,7 +2446,7 @@ describe('CliRepl', function () {
let wantVersion = true;
let wantQueryOperators = true;

if (process.env.USE_NEW_AUTOCOMPLETE && !testServer) {
if (process.env.USE_NEW_AUTOCOMPLETE !== '0' && !testServer) {
// mongodb-ts-autocomplete does not support noDb mode. It wouldn't be able
// to list collections anyway, and since the collections don't exist it
// wouldn't autocomplete methods on those collections.
Expand All @@ -2458,7 +2458,7 @@ describe('CliRepl', function () {
hasDatabaseNames = false;
}

if (process.env.USE_NEW_AUTOCOMPLETE && testServer) {
if (process.env.USE_NEW_AUTOCOMPLETE !== '0' && testServer) {
if ((testServer as any)?._opts.args?.includes('--auth')) {
// mongodb-ts-autocomplete does not take into account the server version
// or capabilities, so it always completes db.watch
Expand Down Expand Up @@ -2530,12 +2530,10 @@ describe('CliRepl', function () {
input.write('db.movies.find({year: {$g');
await tabCompletion();

if (wantQueryOperators) {
if (process.env.USE_NEW_AUTOCOMPLETE) {
// wait for the documents to finish loading to be sure that the next
// tabCompletion() call will work
await docsLoadedPromise;
}
if (wantQueryOperators && process.env.USE_NEW_AUTOCOMPLETE !== '0') {
// wait for the documents to finish loading to be sure that the next
// tabCompletion() call will work
await docsLoadedPromise;
}

await tabCompletion();
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12 changes: 7 additions & 5 deletions packages/cli-repl/src/mongosh-repl.spec.ts
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Expand Up @@ -96,7 +96,7 @@ describe('MongoshNodeRepl', function () {
});
sp.runCommandWithCheck.resolves({ ok: 1 });

if (process.env.USE_NEW_AUTOCOMPLETE) {
if (process.env.USE_NEW_AUTOCOMPLETE !== '0') {
sp.listCollections.resolves([{ name: 'coll' }]);
const aggCursor = stubInterface<AggregationCursor>();
aggCursor.toArray.resolves([{ foo: 1, bar: 2 }]);
Expand Down Expand Up @@ -402,7 +402,7 @@ describe('MongoshNodeRepl', function () {

context(
`autocompleting during .editor [${
process.env.USE_NEW_AUTOCOMPLETE ? 'new' : 'old'
process.env.USE_NEW_AUTOCOMPLETE !== '0' ? 'new' : 'old'
}]`,
function () {
it('does not stop input when autocompleting during .editor', async function () {
Expand Down Expand Up @@ -481,7 +481,9 @@ describe('MongoshNodeRepl', function () {
});

context(
`autocompletion [${process.env.USE_NEW_AUTOCOMPLETE ? 'new' : 'old'}]`,
`autocompletion [${
process.env.USE_NEW_AUTOCOMPLETE !== '0' ? 'new' : 'old'
}]`,
function () {
it('autocompletes collection methods', async function () {
input.write('db.coll.');
Expand All @@ -491,7 +493,7 @@ describe('MongoshNodeRepl', function () {
expect(output, output).to.include('db.coll.updateOne');
});
it('autocompletes collection schema fields', async function () {
if (!process.env.USE_NEW_AUTOCOMPLETE) {
if (process.env.USE_NEW_AUTOCOMPLETE === '0') {
// auto-completing collection field names only supported by new autocomplete
return this.skip();
}
Expand All @@ -505,7 +507,7 @@ describe('MongoshNodeRepl', function () {
});

it('does not autocomplete collection schema fields if disableSchemaSampling=true', async function () {
if (!process.env.USE_NEW_AUTOCOMPLETE) {
if (process.env.USE_NEW_AUTOCOMPLETE === '0') {
// auto-completing collection field names only supported by new autocomplete
return this.skip();
}
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4 changes: 2 additions & 2 deletions packages/cli-repl/src/mongosh-repl.ts
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Expand Up @@ -441,7 +441,7 @@ class MongoshNodeRepl implements EvaluationListener {
let newMongoshCompleter: (line: string) => Promise<CompletionResults>;
let oldMongoshCompleter: (line: string) => Promise<CompletionResults>;

if (process.env.USE_NEW_AUTOCOMPLETE) {
if (process.env.USE_NEW_AUTOCOMPLETE !== '0') {
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Copilot AI Oct 7, 2025

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[nitpick] The magic string comparison !== '0' is repeated across multiple files; consider introducing a helper (e.g., function isNewAutocompleteEnabled(env = process.env) { return env.USE_NEW_AUTOCOMPLETE !== '0'; }) to centralize the flag semantics and avoid divergence.

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This is not a horrible idea. If we had it centralized like that, it'd have made it easier to flip the flag.

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Yeah, we can still do this if you prefer? I think this is something that would primarily have made sense when we first introduced the flag

// we will lazily instantiate the new autocompleter on first use
} else {
const autocompleteParams = instanceState.getAutocompleteParameters();
Expand All @@ -461,7 +461,7 @@ class MongoshNodeRepl implements EvaluationListener {
return nodeResults;
})(),
(async () => {
if (process.env.USE_NEW_AUTOCOMPLETE) {
if (process.env.USE_NEW_AUTOCOMPLETE !== '0') {
if (!newMongoshCompleter) {
newMongoshCompleter = await initNewAutocompleter(instanceState);
}
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3 changes: 1 addition & 2 deletions packages/cli-repl/src/startup-timing.ts
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Expand Up @@ -20,8 +20,7 @@ function linkTimingInterface(): TimingInterface {

// Otherwise, use a JS implementation (mostly for development)
return {
markTime: (category, label) =>
jsTimingEntries.push([category, label, process.hrtime.bigint()]),
markTime: (category, label) => 0, //jsTimingEntries.push([category, label, process.hrtime.bigint()]),
getTimingData: () => {
const data = jsTimingEntries.sort((a, b) => Number(a[2] - b[2]));
// Adjust times so that process initialization happens at time 0
Expand Down