From c76d7131a48c59ead6173de0eaa30e767ad4cee3 Mon Sep 17 00:00:00 2001
From: Ian Butterworth <i.r.butterworth@gmail.com>
Date: Sat, 29 Nov 2025 10:04:13 -0500
Subject: [PATCH] switch to using RegistryInstances.jl

---
 Project.toml             |  2 ++
 src/BinaryBuilderBase.jl |  1 +
 src/Prefix.jl            | 26 ++++++++++++++++++++------
 src/compat.jl            | 13 -------------
 4 files changed, 23 insertions(+), 19 deletions(-)

diff --git a/Project.toml b/Project.toml
index eddbdead..12b0636e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -20,6 +20,7 @@ OrderedCollections = "bac558e1-5e72-5ebc-8fee-abe8a469f55d"
 OutputCollectors = "6c11c7d4-943b-4e2b-80de-f2cfc2930a8c"
 Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"
 Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
+RegistryInstances = "2792f1a3-b283-48e8-9a74-f99dce5104f3"
 ProgressMeter = "92933f4c-e287-5a05-a399-4b506db050ca"
 REPL = "3fa0cd96-eef1-5676-8a61-b3b8758bbffb"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
@@ -56,6 +57,7 @@ Printf = "1.7"
 ProgressMeter = "1"
 REPL = "1.7"
 Random = "1.7"
+RegistryInstances = "0.1"
 SHA = "0.7, 1"
 Scratch = "1.0"
 SimpleBufferStream = "1"
diff --git a/src/BinaryBuilderBase.jl b/src/BinaryBuilderBase.jl
index 77dffa79..44f5bc49 100644
--- a/src/BinaryBuilderBase.jl
+++ b/src/BinaryBuilderBase.jl
@@ -5,6 +5,7 @@ using Base.BinaryPlatforms
 using Downloads
 using JSON, OutputCollectors, Scratch
 import HistoricalStdlibVersions
+using RegistryInstances: reachable_registries, registry_info, uuids_from_name
 
 # Re-export useful stuff from Base.BinaryPlatforms:
 export HostPlatform, platform_dlext, valid_dl_path, arch, libc,
diff --git a/src/Prefix.jl b/src/Prefix.jl
index f4504963..32adeb70 100644
--- a/src/Prefix.jl
+++ b/src/Prefix.jl
@@ -597,23 +597,37 @@ Given a JLL name and registered version, return a `PackageSpec` that, when passe
     ]
 """
 function get_addable_spec(name::AbstractString, version::VersionNumber;
-                          ctx = Pkg.Types.Context(), verbose::Bool = false)
+                          verbose::Bool = false)
     @debug "Getting addable spec" name version
     # Zeroth, update the registry
     update_registry(verbose ? stdout : devnull)
+
+    # Get registries using RegistryInstances
+    registries = reachable_registries()
+
     # First, resolve the UUID
-    uuid = first(Pkg.Types.registry_resolve!(ctx.registries, Pkg.Types.PackageSpec(;name))).uuid
+    uuid = nothing
+    for reg in registries
+        uuids = uuids_from_name(reg, name)
+        if !isempty(uuids)
+            uuid = first(uuids)
+            break
+        end
+    end
+    if uuid === nothing
+        error("Unable to find package $name in any registry")
+    end
     @debug "Resolved UUID" name uuid
 
     # Next, determine the tree hash from the registry
     repo_urls = Set{String}()
     tree_hashes = Set{Base.SHA1}()
-    for reg in ctx.registries
+    for reg in registries
         if !haskey(reg, uuid)
             continue
         end
 
-        pkg_info = registry_info(reg, reg[uuid])
+        pkg_info = registry_info(reg[uuid])
         if pkg_info.repo !== nothing
             push!(repo_urls, pkg_info.repo)
         end
@@ -630,7 +644,7 @@ function get_addable_spec(name::AbstractString, version::VersionNumber;
         @error("Unable to find dependency!",
             name,
             version,
-            registries=ctx.registries,
+            registries,
         )
         error("Unable to find dependency!")
     end
@@ -639,7 +653,7 @@ function get_addable_spec(name::AbstractString, version::VersionNumber;
             name,
             version,
             tree_hashes,
-            registries=ctx.registries,
+            registries,
         )
         error("Multiple treehashes found!")
     end
diff --git a/src/compat.jl b/src/compat.jl
index dcc54a71..2efe7b90 100644
--- a/src/compat.jl
+++ b/src/compat.jl
@@ -29,16 +29,3 @@ if !isdefined(Pkg.Types, :stdlib_version)
 else
     const stdlib_version = Pkg.Types.stdlib_version
 end
-
-if isdefined(Pkg, :Registry) && isdefined(Pkg.Registry, :registry_info)
-    const _Pkg_registry_info = Pkg.Registry.registry_info
-elseif isdefined(Pkg, :RegistryHandling) && isdefined(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