src: allow empty --experimental-config-file by marco-ippolito · Pull Request #61610 · nodejs/node

marco-ippolito · Feb 1, 2026

This PR makes --experimental-config-file accept no arg.
When no arg is passed, it will default to node.config.json.
--experimental-default-config-file is just an alias of --experimental-config-file.
The reason for this change is so when stable we can just remove --experimental-default-config-file and rename --experimental-config-file to --config-file.
Users can execute node with node --config-file index.js or node --config-file=foo.json index.js.

nodejs-github-bot · Feb 1, 2026

Review requested:

@nodejs/config

pmarchini

LGTM

nodejs-github-bot · Feb 1, 2026

CI: https://ci.nodejs.org/job/node-test-pull-request/71151/

codecov · Feb 1, 2026

Codecov Report

❌ Patch coverage is 97.50000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 89.69%. Comparing base (3f52482) to head (4bf9c84).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/node.cc	87.50%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #61610      +/-   ##
==========================================
- Coverage   91.55%   89.69%   -1.87%     
==========================================
  Files         356      706     +350     
  Lines      149601   218143   +68542     
  Branches    23395    41734   +18339     
==========================================
+ Hits       136967   195659   +58692     
- Misses      12371    14412    +2041     
- Partials      263     8072    +7809

Files with missing lines	Coverage Δ
lib/internal/process/pre_execution.js	`98.38% <100.00%> (+14.63%)`	⬆️
lib/internal/test_runner/runner.js	`93.67% <100.00%> (+0.31%)`	⬆️
src/node_config_file.cc	`83.73% <100.00%> (ø)`
src/node_config_file.h	`100.00% <100.00%> (ø)`
src/node_options.cc	`76.61% <100.00%> (ø)`
src/node_options.h	`98.00% <ø> (ø)`
src/node.cc	`76.90% <87.50%> (ø)`

... and 465 files with indirect coverage changes

🚀 New features to boost your workflow:

❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

github-actions · Apr 15, 2026

Failed to start CI

- Validating Jenkins credentials
✔  Jenkins credentials valid
- Querying data for job/node-test-pull-request/71151/
[SyntaxError: Unexpected token '<', ..."    
  https://github.com/nodejs/node/actions/runs/24459748339

github-actions · Apr 15, 2026

Failed to start CI

- Validating Jenkins credentials
✔  Jenkins credentials valid
- Querying data for job/node-test-pull-request/71151/
[SyntaxError: Unexpected token '<', ..."    
  https://github.com/nodejs/node/actions/runs/24461444173

nodejs-github-bot · Apr 15, 2026

CI: https://ci.nodejs.org/job/node-test-pull-request/72703/

nodejs-github-bot · Apr 16, 2026

CI: https://ci.nodejs.org/job/node-test-pull-request/72710/

nodejs-github-bot · Apr 16, 2026

Landed in 2071c44

PR-URL: #61610 Reviewed-By: Pietro Marchini <pietro.marchini94@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

Notable changes: buffer: * (SEMVER-MINOR) add `end` parameter (Robert Nagy) #62390 crypto: * (SEMVER-MINOR) accept key data in `crypto.diffieHellman()` and cleanup DH jobs (Filip Skokan) #62527 * (SEMVER-MINOR) implement `randomUUIDv7()` (nabeel378) #62553 debugger: * (SEMVER-MINOR) add edit-free runtime expression probes to `node inspect` (Joyee Cheung) #62713 fs: * (SEMVER-MINOR) add `signal` option to `fs.stat()` (Mert Can Altin) #57775 * (SEMVER-MINOR) expose frsize field in statfs (Jinho Jang) #62277 http: * (SEMVER-MINOR) harden `ClientRequest` options merge (Matteo Collina) #63082 * (SEMVER-MINOR) add `req.signal` to `IncomingMessage` (Akshat) #62541 lib,src,test,doc: * (SEMVER-MINOR) add `node:ffi` module (Colin Ihrig) #62072 process: * (SEMVER-MINOR) throw on `execve(2)` failure instead of aborting (Bryan English) #62878 src: * (SEMVER-MINOR) allow empty `--experimental-config-file` (Marco Ippolito) #61610 stream: * (SEMVER-MINOR) propagate destruction in `duplexPair` (Ahmed Elhor) #61098 test_runner: * (SEMVER-MINOR) align mock timeout api (sangwook) #62820 * (SEMVER-MINOR) add mock-timers support for `AbortSignal.timeout` (DeveloperViraj) #60751 * (SEMVER-MINOR) support test order randomization (Pietro Marchini) #61747 util: * (SEMVER-MINOR) colorize text with hex colors (Guilherme Araújo) #61556 PR-URL: #63137

aduh95 · May 9, 2026

  const result = await spawnPromisified(process.execPath, [
-    '--experimental-config-file',
-    'i-do-not-exist.json',
+    '--experimental-config-file=i-do-not-exist.json',


I don't really get this change, is it an unrelated no-op? It's making the change not land cleanly on v24.x-staging, should I simply forgo those?

PR-URL: nodejs#61610 Reviewed-By: Pietro Marchini <pietro.marchini94@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

Notable changes: buffer: * (SEMVER-MINOR) add `end` parameter (Robert Nagy) nodejs#62390 crypto: * (SEMVER-MINOR) accept key data in `crypto.diffieHellman()` and cleanup DH jobs (Filip Skokan) nodejs#62527 * (SEMVER-MINOR) implement `randomUUIDv7()` (nabeel378) nodejs#62553 debugger: * (SEMVER-MINOR) add edit-free runtime expression probes to `node inspect` (Joyee Cheung) nodejs#62713 fs: * (SEMVER-MINOR) add `signal` option to `fs.stat()` (Mert Can Altin) nodejs#57775 * (SEMVER-MINOR) expose frsize field in statfs (Jinho Jang) nodejs#62277 http: * (SEMVER-MINOR) harden `ClientRequest` options merge (Matteo Collina) nodejs#63082 * (SEMVER-MINOR) add `req.signal` to `IncomingMessage` (Akshat) nodejs#62541 lib,src,test,doc: * (SEMVER-MINOR) add `node:ffi` module (Colin Ihrig) nodejs#62072 process: * (SEMVER-MINOR) throw on `execve(2)` failure instead of aborting (Bryan English) nodejs#62878 src: * (SEMVER-MINOR) allow empty `--experimental-config-file` (Marco Ippolito) nodejs#61610 stream: * (SEMVER-MINOR) propagate destruction in `duplexPair` (Ahmed Elhor) nodejs#61098 test_runner: * (SEMVER-MINOR) align mock timeout api (sangwook) nodejs#62820 * (SEMVER-MINOR) add mock-timers support for `AbortSignal.timeout` (DeveloperViraj) nodejs#60751 * (SEMVER-MINOR) support test order randomization (Pietro Marchini) nodejs#61747 util: * (SEMVER-MINOR) colorize text with hex colors (Guilherme Araújo) nodejs#61556 PR-URL: nodejs#63137

PR-URL: nodejs#61610 Reviewed-By: Pietro Marchini <pietro.marchini94@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Signed-off-by: Marco Ippolito <marcoippolito54@gmail.com>

nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. lib / src Issues and PRs related to general changes in the lib or src directory. needs-ci PRs that need a full CI run. labels Feb 1, 2026

marco-ippolito force-pushed the default-config-json branch 2 times, most recently from 775234b to 9b00ced Compare February 1, 2026 09:36

pmarchini approved these changes Feb 1, 2026

View reviewed changes

pmarchini added the request-ci Add this label to start a Jenkins CI on a PR. label Feb 1, 2026

MoLow approved these changes Feb 1, 2026

View reviewed changes

marco-ippolito added the semver-minor PRs that contain new features and should be released in the next minor version. label Feb 1, 2026

github-actions Bot removed the request-ci Add this label to start a Jenkins CI on a PR. label Feb 1, 2026

marco-ippolito force-pushed the default-config-json branch 4 times, most recently from 3dc9b42 to 2356e3a Compare February 1, 2026 14:35

pmarchini reviewed Feb 1, 2026

View reviewed changes

Comment thread test/parallel/test-runner-flag-propagation.js

marco-ippolito force-pushed the default-config-json branch from 2356e3a to e53ba12 Compare February 4, 2026 15:35

marco-ippolito force-pushed the default-config-json branch 3 times, most recently from bef68d1 to 5ce1d98 Compare April 15, 2026 10:48

src: allow empty --experimental-config-file

4bf9c84

marco-ippolito force-pushed the default-config-json branch from 5ce1d98 to 4bf9c84 Compare April 15, 2026 11:15

pmarchini approved these changes Apr 15, 2026

View reviewed changes

marco-ippolito added the request-ci Add this label to start a Jenkins CI on a PR. label Apr 15, 2026

github-actions Bot added request-ci-failed An error occurred while starting CI via request-ci label, and manual interventon is needed. and removed request-ci Add this label to start a Jenkins CI on a PR. labels Apr 15, 2026

marco-ippolito removed the request-ci-failed An error occurred while starting CI via request-ci label, and manual interventon is needed. label Apr 15, 2026

marco-ippolito added the request-ci Add this label to start a Jenkins CI on a PR. label Apr 15, 2026

github-actions Bot added request-ci-failed An error occurred while starting CI via request-ci label, and manual interventon is needed. and removed request-ci Add this label to start a Jenkins CI on a PR. labels Apr 15, 2026

marco-ippolito removed the request-ci-failed An error occurred while starting CI via request-ci label, and manual interventon is needed. label Apr 15, 2026

marco-ippolito added the commit-queue Add this label to land a pull request using GitHub Actions. label Apr 16, 2026

nodejs-github-bot removed the commit-queue Add this label to land a pull request using GitHub Actions. label Apr 16, 2026

nodejs-github-bot merged commit 2071c44 into nodejs:main Apr 16, 2026
71 checks passed

aduh95 pushed a commit that referenced this pull request May 5, 2026

src: allow empty --experimental-config-file

8273682

PR-URL: #61610 Reviewed-By: Pietro Marchini <pietro.marchini94@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

aduh95 mentioned this pull request May 5, 2026

2026-05-07, Version 26.1.0 #63137

Merged

aduh95 reviewed May 9, 2026

View reviewed changes

araujogui pushed a commit to araujogui/node that referenced this pull request May 26, 2026

src: allow empty --experimental-config-file

6aa0699

PR-URL: nodejs#61610 Reviewed-By: Pietro Marchini <pietro.marchini94@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

src: allow empty --experimental-config-file#61610

src: allow empty --experimental-config-file#61610
nodejs-github-bot merged 1 commit into
nodejs:mainnodejs/node:mainfrom
marco-ippolito:default-config-jsonmarco-ippolito/node:default-config-jsonCopy head branch name to clipboard

marco-ippolito commented Feb 1, 2026

Uh oh!

nodejs-github-bot commented Feb 1, 2026

Uh oh!

pmarchini left a comment

Uh oh!

nodejs-github-bot commented Feb 1, 2026

Uh oh!

codecov Bot commented Feb 1, 2026 •

edited

Loading

Uh oh!

Uh oh!

github-actions Bot commented Apr 15, 2026

Uh oh!

github-actions Bot commented Apr 15, 2026

Uh oh!

nodejs-github-bot commented Apr 15, 2026

Uh oh!

nodejs-github-bot commented Apr 16, 2026

Uh oh!

Uh oh!

nodejs-github-bot commented Apr 16, 2026

Uh oh!

aduh95 May 9, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

5 participants

Search code, repositories, users, issues, pull requests...

Uh oh!

Conversation

marco-ippolito commented Feb 1, 2026

Uh oh!

nodejs-github-bot commented Feb 1, 2026

Uh oh!

pmarchini left a comment

Choose a reason for hiding this comment

Uh oh!

nodejs-github-bot commented Feb 1, 2026

Uh oh!

codecov Bot commented Feb 1, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Codecov Report

Uh oh!

Uh oh!

github-actions Bot commented Apr 15, 2026

Uh oh!

github-actions Bot commented Apr 15, 2026

Uh oh!

nodejs-github-bot commented Apr 15, 2026

Uh oh!

nodejs-github-bot commented Apr 16, 2026

Uh oh!

Uh oh!

nodejs-github-bot commented Apr 16, 2026

Uh oh!

aduh95 May 9, 2026

Choose a reason for hiding this comment

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

5 participants

codecov Bot commented Feb 1, 2026 •

edited

Loading