Any chance of backporting view_component 3.x support to BL 7?

[jrochkind]

I am having a lot of trouble upgrading to Blacklight 8, I think it's going to be a while until I get there. Issues relevant to that filed at eg #3051, projectblacklight/blacklight_range_limit#236 and projectblacklight/blacklight_range_limit#237)

But that leaves me stuck on view_component 2.x, as for some reason BL 7 is incompat with 3.x. This has been fixed in BL8. I am worried about staying on view_component 2.x, as it will not be getting bugfixes anymore, may not be compatible with future versions of Rails, etc.

I wonder if it could be figured out what was changed to create view_component 3.x compat, and if that could be backported to Blacklight 7.x?

[jrochkind]

Possibly relevant PR's/commits, found just from log search, I don't have personal familiarity.

• Continue to provide access to the view component's controller #3014
• Use collection parameters in line with idiomatic ViewComponent behaviors #2698
• 4ff24b5342e1917
• not sure if required: Component template override #2979

Don't know if these are exhaustive; don't know if they are easily back-ported

[jrochkind]

Sadly the release-7.x branch isn't passing tests locally for me as is, even with view_component 2.x So that makes it a lot more of a challenge.

I am not sure if my failures are reproducible or not, but I get these failures:

rspec ./spec/components/blacklight/facet_item_pivot_component_spec.rb:34 # Blacklight::FacetItemPivotComponent links to the facet and shows the number of hits
rspec ./spec/helpers/blacklight/search_history_constraints_helper_behavior_spec.rb:50 # Blacklight::SearchHistoryConstraintsHelperBehavior render_search_to_s_* render_search_to_s_element does not escape with options set thus
rspec ./spec/helpers/blacklight/search_history_constraints_helper_behavior_spec.rb:34 # Blacklight::SearchHistoryConstraintsHelperBehavior render_search_to_s_* render_search_to_s_element escapes them that need escaping
rspec ./spec/helpers/blacklight/search_history_constraints_helper_behavior_spec.rb:25 # Blacklight::SearchHistoryConstraintsHelperBehavior render_search_to_s_* render_search_to_s_element renders basic element
rspec ./spec/controllers/catalog_controller_spec.rb:479 # CatalogController GET suggest returns suggestions
rspec ./spec/presenters/blacklight/show_presenter_spec.rb:69 # Blacklight::ShowPresenter link_rel_alternates with no arguments generates <link rel=alternate> tags

[jrochkind]

Has already been backported to release-7.x branch in #3069