feat(storefront): strf-9582 stencil push: apply theme to multiple storefronts

[bc-max]

What?

This feature allows users to apply one theme to multiple storefronts/channels. There are several options available for users:

• stencil push command will check whether multiple storefronts/channels available. If yes, user will be prompted to chose one or several/all ids (list of available channels will be shown in radio button style);
• stencil push -a -c 123 456 allows to apply a theme to selected channels and further system questions will be skipped;
• stencil push -a -allc allows to apply a theme to all available channels.

Tickets / Documentation

STRF-9582

Screenshots (if appropriate)

cc @bigcommerce/storefront-team

[bc-max]

I thought it could be useful to add possibility to use command like stencil push -a -c all (use flag all) to apply theme to all available channels instead of typing all the ids. However, user also can run just stencil push command and choose all channels with radio button shortcuts.

If you think it is a good idea to add all just let me know and I'll amend my PR with respective changes.

[zvuki]

@bc-max It would make sense to have a separate flag, like stencil push -a -allc for applying to all channels (so -c always expects whitespace-separated ids as an input).

[deepak-aupchaarik]

Might be a dumb question, but does this just assume which variation is being applied? I don't see a variation being passed in the command

[jairo-bc]

@dmaurya-gea There's -a option for variation name https://github.com/bigcommerce/stencil-cli/blob/master/bin/stencil-push.js#L14

[deepak-aupchaarik]

@dmaurya-gea There's -a option for variation name https://github.com/bigcommerce/stencil-cli/blob/master/bin/stencil-push.js#L14

Yes, I'm aware of that flag and we use it. I saw the same being used here for a different purpose so wanted to check. I wish document had an example with the channels flag

Anyway, I added the -c option without the -a option while retaining it for the variation name and it worked

stencil push -a <Variation> -d -c 1 for applying theme to the default channel. For some reason the only storefront was being listed as 2 channels and creating a prompt which broke the build since channel option wasn't passed initially