Adding a dry-run sub command to diesel-migration

[RitickMadaan]

I would like to add a dry-run sub command to diesel-migration. Running diesel migration dry-run will print to stdout all the sql queries which will be run by diesel migration run. This will give more visibility and be helpful with using diesel in production environments where I would preferably like to see at a single place, all the queries I am going to run.

[weiznich]

I think that's an good idea, although I would likely use diesel migration run --dry-run for this instead to be more close on what for example cargo does for cargo publish. We are happy to mentor work on this feature and to receive a PR for this feature.

[RitickMadaan]

although I would likely use diesel migration run --dry-run for this instead to be more close on what for example cargo does for cargo publish

sure, this sounds good @weiznich. I'll raise a PR : )