Allow multiple file roots, pillar roots and states dirs as arguments to salt-call

[martijnkruiten]

Is your feature request related to a problem? Please describe.
While the master config supports multiple directories for file roots, pillar roots and states dirs, salt-call does not, which makes local development harder in our use case, since we don't have fixed paths that can be defined in the minion config.

Describe the solution you'd like
I'd like to be able to specify the arguments --file-root, --pillar-root and --states-dir multiple times. This would be backwards compatible.

Describe alternatives you've considered
The alternative would be to use the minion configuration file, which is not fit for all development environments. In our use case, we point these to a checked out git repo with multiple roots in it, and we dynamically detect the full path.

Additional context
The specific use case here is one file root of our own and multiple formulas. We'd like to be able to run our highstate with one command. I've got this working with minimal changes, and I'd like to submit a PR to resolve this issue after I've done some additional testing.

[welcome[bot]]

Hi there! Welcome to the Salt Community! Thank you for making your first contribution. We have a lengthy process for issues and PRs. Someone from the Core Team will follow up as soon as possible. In the meantime, here’s some information that may help as you continue your Salt journey.
Please be sure to review our Code of Conduct. Also, check out some of our community resources including:

• Community Wiki
• Salt’s Contributor Guide
• Join our Community Slack
• IRC on LiberaChat
• Salt Project YouTube channel
• Salt Project Twitch channel

There are lots of ways to get involved in our community. Every month, there are around a dozen opportunities to meet with other contributors and the Salt Core team and collaborate in real time. The best way to keep track is by subscribing to the Salt Community Events Calendar.
If you have additional questions, email us at [email protected]. We’re glad you’ve joined our community and look forward to doing awesome things with you!

[s0undt3ch]

Looked at the diff you linked and the changes look good.

When submitting a PR, just include tests that cover the changes and a changelog entry and you should be set.

[martijnkruiten]

Thanks. The next two weeks there will be no activity from my side because I’m on holiday, but I’ll finish it up right after.

[zhangguanzhang]

any update?

[dwoz]

We are open to contributions but otherwise this is not currently a priority.