allow specify multiple schema

[alexander-smyslov]

Allow specify multiple schemas in command line like :

migra --schema schema1 --schema schema2

[djrobstep]

Hi there, thanks so much for submitting this PR, and sorry it's taken so long to get to reviewing. I stepped away from active maintainer duties for a while but have now returned.

With the PR as it is, I worry about it adding complexity to the external command line flow. I think a cleaner approach might be to handle multiple schemas within the migration object, rather than changing the command line behaviour. So the general flow would be: m = Migration(a, b, schemas=bla) and then it would be handled within the migration object.

What do you think?

[alexander-smyslov]

Hi there, thanks so much for submitting this PR, and sorry it's taken so long to get to reviewing. I stepped away from active maintainer duties for a while but have now returned.

With the PR as it is, I worry about it adding complexity to the external command line flow. I think a cleaner approach might be to handle multiple schemas within the migration object, rather than changing the command line behaviour. So the general flow would be: m = Migration(a, b, schemas=bla) and then it would be handled within the migration object.

What do you think?

I will try to adopt a solution with your suggestion.