--output-format=junit does not generates the output

[81piyush]

Bug description

On running pylint (version : 2.16.2) with parameter --output-format=junit does not generates the output.

But running the pylint version 2.14.5 with the same configuration on the same folder/files generates the xml output.

Both executes with below mentioned dependencies (pylint-junit, junit-xml) and configuration

Configuration

in the .pylintrc file:

[MAIN]
load-plugins=pylint_junit

Command used

pylint %cd% --output-format=junit

Pylint output

None

Expected behavior

Should generate the xml based results

Pylint version

pylint 2.16.2
astroid 2.14.2
Python 3.9.6 (tags/v3.9.6:db3ff76, Jun 28 2021, 15:26:21) [MSC v.1929 64 bit (AMD64)]

OS / Environment
Windows10

Additional dependencies
pylint-junit
junit-xml

[mbyrnepr2]

Thanks @81piyush for the clear report. I can reproduce it and it stopped emitting the xml output in 2.15.0.
I did some digging around and if I revert this one locally, I begin to see the xml output again. What do you think @jacobtylerwalls?

[jacobtylerwalls]

I'd be interested to know what pylint_junit is doing to produce the output; it could be a downstream issue.

[Pierre-Sassoulas]

If the issue can be bisected to the commit @mbyrnepr2 linked to, then it probably means that instead of using the proper reporter API pylint_junit is doing something strange involving capturing stdout and I'm thus tempted to close as won't fix.

[mbyrnepr2]

The source code of pylint_junit is in this one module. I'm not sure how it may be incorrectly using the pylint reporter API but one thing to note is that there is an open issue in pylint_junit for this - so perhaps we can close our issue since someone has shared a working solution over there.

[MarcSkovMadsen]

Just for the record. I was a pylint2junit user. It had the same problemed introduced in 2.15.

[Pierre-Sassoulas]

It seems that pylint_junit is a small reporter class (https://github.com/rasjani/pylint_junit/blob/master/src/pylint_junit/__init__.py) last upgraded 3 years ago. I would integrate the functionality in pylint if someone propose a merge request.

[MarcSkovMadsen]

Someone just proposed a merge.