Feature(command-deploy): support passing a branch when triggering a deploy

[erezrokah]

Is your feature request related to a problem? Please describe.

Related to #275 (comment)

netlify deploy --trigger doesn't support passing an --alias.

Describe the solution you'd like

Ability to trigger a deploy for a specific existing branch/PR.

Describe alternatives you've considered

N/A

Additional context

See #275 (comment)

This will require the API to support it.

Can you submit a pull request?

Yes

[matyasf]

Any update on this feature? Can we expect it to be implemented?

[erezrokah]

Hi @matyasf, no timeline for this yet.
The CLI uses https://open-api.netlify.com/#operation/createSiteBuild to endpoint to trigger a deploy which currently doesn't support passing a branch.

We'll first need to add this to our API.

[csvn]

This feature would be really nice to get branch subdomains working out of the box when using Netlify DNS. We are running netlify deploy --alias=$CI_COMMIT_REF_SLUG for branches via Gitlab CI to get review apps/URL's for merge requests.

We'll first need to add this to our API.

Are there any plans to update this API to allow this, or this just in the backlog? I'm wondering in case we want to replace Netlify DNS with our own logic to make this work or not.