Skip to content

adds README section regarding usage in child procs #850

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
Oct 13, 2021
Merged

adds README section regarding usage in child procs #850

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
f2d1540
adds README section regarding usage in child procs
kristofkalocsai Oct 3, 2021
615631c
Update README.md
kristofkalocsai Oct 4, 2021
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
21 changes: 21 additions & 0 deletions README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -351,6 +351,27 @@ if (debug.enabled) {
You can also manually toggle this property to force the debug instance to be
enabled or disabled.

## Usage in child processes

Due to the way `debug` detects if the output is a TTY or not, colors are not shown in child processes when `stderr` is piped. A solution is to pass the `DEBUG_COLORS=1` environment variable to the child process.
For example:

```javascript
worker = fork(WORKER_WRAP_PATH, [workerPath], {
stdio: [
/* stdin: */ 0,
/* stdout: */ 'pipe',
/* stderr: */ 'pipe',
'ipc',
],
env: Object.assign({}, process.env, {
DEBUG_COLORS: 1 // without this settings, colors won't be shown
}),
});

worker.stderr.pipe(process.stderr, { end: false });
```


## Authors

Expand Down