Went to my site and bam - None of my CSS loaded. In SSH it seems my sub-theme directory was deleted.

This happened right after I ran drush --no-backup up -y

Gladly I didn't do any signicant changes to the files today, yet, this is indeed dangerous.

I suggest making sure any Basic updates won't delete any additional non-native content.

Even thought it's a starter theme and not a base --- An option to use it as such should be given and auto deletion should be removed.

Comments

Benia created an issue. See original summary.

joelpittet’s picture

joelpittet
Primary language English
Location Vancouver
CreditAttribution: joelpittet commented
Status: Active » Closed (works as designed)

Sorry we can't do that. That is part of how drush works and for people who have copied and renamed it with drush basic-install, may want to keep the original basic up to date to compare and update their theme with the changes in to basic.

Benia’s picture

Benia CreditAttribution: Benia commented

Oh, I seem to have had a mistake here - I putted the subtheme inside the theme's folder, instead alongside.

http://drupal.stackexchange.com/questions/214550/drush-up-deletes-sub-th...

leahtard’s picture

leahtard CreditAttribution: leahtard at The Jibe commented

Hey Benia,

Here is a good docs page: https://www.drupal.org/docs/8/theming-drupal-8/creating-a-drupal-8-sub-t...

Cheers, Leah

joelpittet’s picture

joelpittet
Primary language English
Location Vancouver
CreditAttribution: joelpittet commented
Priority: Critical » Normal

Thanks for the detail on the problem. Maybe you'd like to contribute to a small README change to help support that idea to not put the sub theme in the base theme/original themes directory?

Benia’s picture

Benia CreditAttribution: Benia commented

Yes. Under the Installation chapter, I would suggest adding a third chapter:

3. Using Basic as a base theme:

Even though Basic is meant to be used as a starter theme, it can be used as a base theme for one or more child themes. Directions on how to create child themes from usually any Drupal theme, can be found here:

https://www.drupal.org/docs/8/theming-drupal-8/creating-a-drupal-8-sub-t...

Don't put the sub theme's directory inside your Basic directory, Otherwise, drush up will delete it in the next update; Hence, make sure that when you create the sub theme, you put its directory under root/themes alongside the original Basic directory.