fix exceptions from integration tests due to no metadata finders (#9697)

common/lib/dependabot/metadata_finders/base/changelog_finder.rb

@@ -297,6 +297,7 @@ def fetch_dependency_file_list(ref)
           when "gitlab" then fetch_gitlab_file_list
           when "azure" then fetch_azure_file_list
           when "codecommit" then [] # TODO: Fetch Files from Codecommit
+          when "example" then []
           else raise "Unexpected repo provider '#{T.must(source).provider}'"
           end
         end

common/lib/dependabot/metadata_finders/base/commits_finder.rb

@@ -51,6 +51,7 @@ def commits_url
             when "bitbucket" then bitbucket_compare_path(new_tag, previous_tag)
             when "gitlab" then gitlab_compare_path(new_tag, previous_tag)
             when "azure" then azure_compare_path(new_tag, previous_tag)
+            when "example" then ""
             else raise "Unexpected source provider '#{T.must(source).provider}'"
             end
 

common/lib/dependabot/metadata_finders/base/release_finder.rb

@@ -242,7 +242,7 @@ def fetch_dependency_releases
           when "github" then fetch_github_releases
           # Bitbucket and CodeCommit don't support releases and
           # Azure can't list API for annotated tags
-          when "bitbucket", "azure", "codecommit" then []
+          when "bitbucket", "azure", "codecommit", "example" then []
           when "gitlab" then fetch_gitlab_releases
           else raise "Unexpected repo provider '#{T.must(source).provider}'"
           end

common/lib/dependabot/pull_request_creator/pr_name_prefixer.rb

@@ -317,6 +317,7 @@ def recent_commit_messages
         when "azure" then recent_azure_commit_messages
         when "bitbucket" then recent_bitbucket_commit_messages
         when "codecommit" then recent_codecommit_commit_messages
+        when "example" then []
         else raise "Unsupported provider: #{source.provider}"
         end
       end
@@ -402,6 +403,7 @@ def last_dependabot_commit_message
             when "azure" then last_azure_dependabot_commit_message
             when "bitbucket" then last_bitbucket_dependabot_commit_message
             when "codecommit" then last_codecommit_dependabot_commit_message
+            when "example" then nil
             else raise "Unsupported provider: #{source.provider}"
             end,
             T.nilable(String)

silent/lib/dependabot/silent.rb

@@ -7,7 +7,7 @@
 require "dependabot/silent/file_parser"
 require "dependabot/silent/update_checker"
 require "dependabot/silent/file_updater"
-# require "dependabot/silent/metadata_finder" TODO
+require "dependabot/silent/metadata_finder"
 require "dependabot/silent/requirement"
 require "dependabot/silent/version"
 
@@ -18,3 +18,5 @@
 require "dependabot/dependency"
 Dependabot::Dependency
   .register_production_check("silent", ->(groups) { groups.empty? || groups.include?("prod") })
+
+Dependabot::MetadataFinders.register("silent", Dependabot::Silent::MetadataFinder)

silent/lib/dependabot/silent/metadata_finder.rb

@@ -0,0 +1,32 @@
+# typed: strong
+# frozen_string_literal: true
+
+require "dependabot/metadata_finders"
+require "dependabot/metadata_finders/base"
+
+module Dependabot
+  module Silent
+    class MetadataFinder < Dependabot::MetadataFinders::Base
+      extend T::Sig
+
+      sig { returns(String) }
+      def homepage_url
+        ""
+      end
+
+      private
+
+      sig { override.returns(Dependabot::Source) }
+      def look_up_source
+        Dependabot::Source.new(
+          provider: "example",
+          hostname: "example.com",
+          api_endpoint: "https://example.com/api/v3",
+          repo: dependency.name,
+          directory: nil,
+          branch: nil
+        )
+      end
+    end
+  end
+end