Fix for root assets_prefix

[Fudoshiki]

Fixes ln stderr: ln: target '/srv/webapp/repository/releases/20180224132230/public/' is not a directory: No such file or directory when set :assets_prefix, ''

[capistrano-bot]

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[mattbrictson]

@Fudoshiki any reason why you closed this PR? Did you find another fix?

[Fudoshiki]

I have main domain and subdomain for assets

example.com assets.example.com

rails by default compile in assets folder and url will be assets.example.com/assets, but i need just assets.example.com

When I set config.assets.prefix = '' it will work, but will compile assets in root of public folder

It raise many bugs, we can't add public folder in shared paths, how it's doing in PR, coz it's overrride current public folder in release folder

Now I finding the way to remove /assets path from helper, but compile assets in public/assets folder

[Fudoshiki]

We can't set config.assets.prefix = '', it will breaks down deployment and rails assets:clean/clobber tasks

[mattbrictson]

I see. I agree that config.assets.prefix = '' will cause problems in Rails. I don't think we can do anything in Capistrano about that.