48 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			48 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Ruby
		
	
	
	
| # frozen_string_literal: true
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| 
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| module Gitlab
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|   class SubmoduleLinks
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|     include Gitlab::Utils::StrongMemoize
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| 
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|     Urls = Struct.new(:web, :tree, :compare)
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| 
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|     def initialize(repository)
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|       @repository = repository
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|       @cache_store = {}
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|     end
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| 
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|     def for(submodule, sha, diff_file = nil)
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|       submodule_url = submodule_url_for(sha, submodule.path)
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|       old_submodule_id = old_submodule_id(submodule_url, diff_file)
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|       urls = SubmoduleHelper.submodule_links_for_url(submodule.id, submodule_url, repository, old_submodule_id)
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|       Urls.new(*urls) if urls.any?
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|     end
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| 
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|     private
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| 
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|     attr_reader :repository
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| 
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|     def submodule_urls_for(sha)
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|       @cache_store.fetch(sha) do
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|         submodule_urls = repository.submodule_urls_for(sha)
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|         @cache_store[sha] = submodule_urls
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|       end
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|     end
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| 
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|     def submodule_url_for(sha, path)
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|       urls = submodule_urls_for(sha)
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|       urls && urls[path]
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|     end
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| 
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|     def old_submodule_id(submodule_url, diff_file)
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|       return unless diff_file&.old_blob && diff_file.old_content_sha
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| 
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|       # if the submodule url has changed from old_sha to sha, a compare link does not make sense
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|       #
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|       old_submodule_url = submodule_url_for(diff_file.old_content_sha, diff_file.old_blob.path)
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| 
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|       diff_file.old_blob.id if old_submodule_url == submodule_url
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|     end
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|   end
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| end
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