[vcpkg] Add support for --overlay-ports to versioning (#15013)

Co-authored-by: Robert Schumacher <roschuma@microsoft.com>

3 files changed, 12 insertions, 2 deletions

diff --git a/toolsrc/include/vcpkg/dependencies.h b/toolsrc/include/vcpkg/dependencies.h
index f4e061b03..4736bc02c 100644
--- a/toolsrc/include/vcpkg/dependencies.h
+++ b/toolsrc/include/vcpkg/dependencies.h
@@ -178,6 +178,7 @@ namespace vcpkg::Dependencies
     /// <param name="status_db">Status of installed packages in the current environment.</param>
     ExpectedS<ActionPlan> create_versioned_install_plan(const PortFileProvider::IVersionedPortfileProvider& vprovider,
                                                         const PortFileProvider::IBaselineProvider& bprovider,
+                                                        const PortFileProvider::IOverlayProvider& oprovider,
                                                         const CMakeVars::CMakeVarProvider& var_provider,
                                                         const std::vector<Dependency>& deps,
                                                         const std::vector<DependencyOverride>& overrides,
diff --git a/toolsrc/include/vcpkg/fwd/portfileprovider.h b/toolsrc/include/vcpkg/fwd/portfileprovider.h
index dc381eb92..a75cfc137 100644
--- a/toolsrc/include/vcpkg/fwd/portfileprovider.h
+++ b/toolsrc/include/vcpkg/fwd/portfileprovider.h
@@ -6,4 +6,5 @@ namespace vcpkg::PortFileProvider
     struct PathsPortFileProvider;
     struct IVersionedPortfileProvider;
     struct IBaselineProvider;
+    struct IOverlayProvider;
 }
diff --git a/toolsrc/include/vcpkg/portfileprovider.h b/toolsrc/include/vcpkg/portfileprovider.h
index fde28b0df..d297af739 100644
--- a/toolsrc/include/vcpkg/portfileprovider.h
+++ b/toolsrc/include/vcpkg/portfileprovider.h
@@ -55,6 +55,14 @@ namespace vcpkg::PortFileProvider
         virtual ~IBaselineProvider() = default;
     };
 
-    std::unique_ptr<IBaselineProvider> make_baseline_provider(const VcpkgPaths&);
-    std::unique_ptr<IVersionedPortfileProvider> make_versioned_portfile_provider(const VcpkgPaths&);
+    struct IOverlayProvider
+    {
+        virtual ~IOverlayProvider() = default;
+        virtual Optional<const SourceControlFileLocation&> get_control_file(StringView port_name) const = 0;
+    };
+
+    std::unique_ptr<IBaselineProvider> make_baseline_provider(const vcpkg::VcpkgPaths& paths);
+    std::unique_ptr<IVersionedPortfileProvider> make_versioned_portfile_provider(const vcpkg::VcpkgPaths& paths);
+    std::unique_ptr<IOverlayProvider> make_overlay_provider(const vcpkg::VcpkgPaths& paths,
+                                                            View<std::string> overlay_ports);
 }