Return a non-zero exit code when publishing to a repository fails

Context: Using Poetry in Build (CI/CD) systems. While using Poetry to upload a wheel file to Sonatype Nexus repository, Repository throws a 400 error if the wheel file with the same version is already available in the repository.

Example: poetry publish $private_nexus_url --build

1. Builds a wheel file my_wheel_file_0.1.0
2. Uploads the wheel file to Nexus Repository => Version on Nexus: my_wheel_file_0.1.0

Run again without updating the version, i.e the project’s version is still 0.1.0 poetry publish $private_nexus_url --build

1. Builds a wheel file my_wheel_file_0.0.1
2. Tries to upload the wheel file my_wheel_file_0.0.1 to Nexus Repository and returns an error message.
3. “poetry publish” fails silently by displaying the error message.

Error message:

[HTTPError]                                                      
 400 Client Error: Repository does not allow updating assets: pypi-internal
 or url: <private repository url>   

Improvement/Bug: In the context of CI/CD systems, a non-zero exit code along with error message is required else the build systems fail silently without uploading the latest artifact. Exit with a non zero code along with error message

Note: We could configure Nexus to allow republishing the same artifact version again.

[Roger]

Publishing with wrong credentials ends up in the same behavior

[sdispater]

Version 0.12.12 has just been released!