update handling registry_info(pkg) -> registry_info(registry, pkg) (#455)

Author: IanButterworth

src/Prefix.jl

@@ -613,7 +613,7 @@ function get_addable_spec(name::AbstractString, version::VersionNumber;
             continue
         end
 
-        pkg_info = registry_info(reg[uuid])
+        pkg_info = registry_info(reg, reg[uuid])
         if pkg_info.repo !== nothing
             push!(repo_urls, pkg_info.repo)
         end

src/compat.jl

@@ -31,7 +31,14 @@ else
 end
 
 if isdefined(Pkg, :Registry) && isdefined(Pkg.Registry, :registry_info)
-    const registry_info = Pkg.Registry.registry_info
+    const _Pkg_registry_info = Pkg.Registry.registry_info
 elseif isdefined(Pkg, :RegistryHandling) && isdefined(Pkg.RegistryHandling, :registry_info)
-    const registry_info = Pkg.RegistryHandling.registry_info
+    const _Pkg_registry_info = Pkg.RegistryHandling.registry_info
+end
+
+# Handle Pkg.jl signature change: registry_info(pkg) -> registry_info(registry, pkg)
+if @isdefined(_Pkg_registry_info) && hasmethod(_Pkg_registry_info, Tuple{Pkg.Registry.PkgEntry})
+    registry_info(::Pkg.Registry.RegistryInstance, pkg::Pkg.Registry.PkgEntry) = _Pkg_registry_info(pkg)
+else
+    const registry_info = _Pkg_registry_info
 end