--exit-zero option

[dolftax]

Is your feature request related to a problem? Please describe.
Non zero exit codes breaks builds

Describe the solution you'd like
Pass --exit-zero option to always exit with 0

Describe alternatives you've considered
Nil

Additional context
Nil

[stinovlas]

Can't you just use allow_failure on GitLab, allow_failures on Travis or similar option in other pipeline runners? This will produce failed job that won't break the whole build, which is IMHO much better solution, because you still get the warning in form of a failed job.

Also, if you really want zero exit code, can't you just use bandit || true?

It seems kind of pointless to me to build this feature in the bandit itself.

[bittner]

Can't you just use allow_failure on GitLab

Why would someone? If you don't use GitLab, if you don't use Travis, if you run things locally you're screwed with this solution.

I believe, it would be a good idea to align the use of CLI and configuration options with the other common tools in the Python tool chain (flake8 and Pylint, most importantly) to honor muscle memory. Both, flake8 and and Pylint, have a --exit-zero option.

[maciejstromich]

BTW, #510

[maciejstromich]

@ericwb this can be closed since my PR got merged.

[dolftax]

Thank you @maciejstromich