Completely remove dependencies on python & boost.

Signed-off-by: furby™ <devs@wabi.foundation>

Package.resolved

@@ -1,5 +1,5 @@
 {
-  "originHash" : "f5e02745871b95617e6f30f7baca9016ed665f2d27342bc87f9d5f6d804b536a",
+  "originHash" : "574e70c31d2f9e918e37ad66f2b3778e74a498b10fbcf408505b90a3b7d2c027",
   "pins" : [
     {
       "identity" : "icu",
@@ -15,17 +15,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/wabiverse/MetaverseKit",
       "state" : {
-        "revision" : "49525217e4ef540408c062c8190895afc3b8e7b1",
-        "version" : "1.8.9"
-      }
-    },
-    {
-      "identity" : "metaversepythonframework",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/wabiverse/MetaversePythonFramework",
-      "state" : {
-        "revision" : "e2f4ba867b7e287a283a27a0005ab64deef14279",
-        "version" : "3.11.7"
+        "branch" : "main",
+        "revision" : "8cf6729a950092be3d3d627964731c3b974531b8"
       }
     },
     {
@@ -37,15 +28,6 @@
         "version" : "1.26.2"
       }
     },
-    {
-      "identity" : "pythonkit",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/pvieito/PythonKit.git",
-      "state" : {
-        "revision" : "43647b36cacb99558e57ef98e97ef598f91d1164",
-        "version" : "0.5.0"
-      }
-    },
     {
       "identity" : "rainbow",
       "kind" : "remoteSourceControl",

Package.swift

@@ -280,7 +280,7 @@ let package = Package(
     // prepare for SwiftCrossUI, for a cross-platform UsdView.
     // .package(url: "https://github.com/stackotter/swift-cross-ui", revision: "5c5d8c8"),
     .package(url: "https://github.com/wabiverse/icu.git", from: "76.1.2"),
-    .package(url: "https://github.com/wabiverse/MetaverseKit", from: "1.8.9"),
+    .package(url: "https://github.com/wabiverse/MetaverseKit", branch: "main"),
     .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "600.0.1"),
     .package(url: "https://github.com/swiftlang/swift-docc-plugin", from: "1.4.3"),
     .package(url: "https://github.com/apple/swift-log.git", from: "1.5.3"),
@@ -307,7 +307,6 @@ let package = Package(
         .target(name: "pxr"),
         /* ------------ VFX Platform. ----------- */
         .product(name: "MetaTBB", package: "MetaverseKit"),
-        .product(name: "PyBind11", package: "MetaverseKit", condition: .when(platforms: Arch.OS.nix.platform)),
         .product(name: "MaterialX", package: "MetaverseKit"),
         .product(name: "Alembic", package: "MetaverseKit"),
         .product(name: "OpenColorIO", package: "MetaverseKit"),
@@ -323,12 +322,12 @@ let package = Package(
         /* ---------- Console logging. ---------- */
         .product(name: "Logging", package: "swift-log"),
         .product(name: "Rainbow", package: "Rainbow")
-      ] + Arch.OS.dependency(.boost),
+      ],
       publicHeadersPath: "include",
       cxxSettings: [
         /* ---------- Turn everything on. ---------- */
         .define("PXR_USE_NAMESPACES", to: "1"),
-        .define("PXR_PYTHON_SUPPORT_ENABLED", to: "1", .when(platforms: Arch.OS.nix.platform)),
+        .define("PXR_PYTHON_SUPPORT_ENABLED", to: "0"),
         .define("PXR_PREFER_SAFETY_OVER_SPEED", to: "1"),
         .define("PXR_OCIO_PLUGIN_ENABLED", to: "1"),
         .define("PXR_OIIO_PLUGIN_ENABLED", to: "1"),
@@ -1862,7 +1861,7 @@ let package = Package(
         .target(name: "UsdShade"),
         .target(name: "UsdLux"),
         .target(name: "UsdHydra"),
-        .target(name: "UsdAbc", condition: .when(platforms: Arch.OS.nix.platform)),
+        .target(name: "UsdAbc"),
         .target(name: "UsdDraco"),
         .target(name: "UsdMedia"),
         .target(name: "UsdMtlx"),
@@ -1910,7 +1909,6 @@ let package = Package(
         .define("static_assert(_conditional, ...)", to: "", .when(platforms: [.windows])),
       ],
       swiftSettings: [
-        // enable to debug bundled (python, plugins, resources).
         .define("DEBUG_PIXAR_BUNDLE"),
         .interoperabilityMode(.Cxx),
       ]
@@ -1994,38 +1992,5 @@ enum Arch
         case .noembeddedapple: [.macOS, .linux, .android, .openbsd, .windows]
       }
     }
-
-    public static func dependency(_ dependency: Dependency) -> [Target.Dependency]
-    {
-      #if os(macOS) || os(visionOS) || os(iOS) || os(tvOS) || os(watchOS)
-        [dependency.product(for: .apple)].compactMap { $0 }
-      #elseif os(Linux) || os(Android) || os(OpenBSD) || os(FreeBSD)
-        [dependency.product(for: .linux)].compactMap { $0 }
-      #elseif os(Windows) || os(Cygwin)
-        [dependency.product(for: .windows)].compactMap { $0 }
-      #elseif os(WASI)
-        [dependency.product(for: .web)].compactMap { $0 }
-      #else
-        []
-      #endif
-    }
-
-    enum Dependency
-    {
-      case boost
-
-      public func product(for os: OS) -> Target.Dependency?
-      {
-        switch self
-        {
-          case .boost:
-            switch os
-            {
-              case .apple: .product(name: "Boost", package: "MetaverseKit")
-              default: nil
-            }
-        }
-      }
-    }
   }
 }

Sources/Tf/preprocessorUtils.cpp

@@ -23,7 +23,7 @@
 //
 #include "Tf/preprocessorUtils.h"
 
-#if !defined(ARCH_OS_WINDOWS)
+#if __has_include(<boost/preprocessor/arithmetic/inc.hpp>)
 
 #  include <boost/preprocessor/arithmetic/sub.hpp>
 #  include <boost/preprocessor/cat.hpp>

Sources/UsdAbc/alembicFileFormat.cpp

@@ -36,7 +36,6 @@
 #include "Tf/registryManager.h"
 #include "Tf/staticData.h"
 
-#include <boost/assign.hpp>
 #include <ostream>
 
 PXR_NAMESPACE_OPEN_SCOPE

Sources/UsdAbc/alembicReader.cpp

@@ -51,8 +51,7 @@
 #include <Alembic/AbcGeom/IXform.h>
 #include <Alembic/AbcGeom/SchemaInfoDeclarations.h>
 #include <Alembic/AbcGeom/Visibility.h>
-#include <boost/type_traits/is_base_of.hpp>
-#include <boost/utility/enable_if.hpp>
+#include <optional>
 #include <functional>
 #include <memory>
 #include <mutex>
@@ -609,7 +608,7 @@ class _ReaderContext {
   typedef std::function<bool(const UsdAbc_AlembicDataAny &, const ISampleSelector &)> Converter;
 
   /// An optional ordering of name children or properties.
-  typedef boost::optional<TfTokenVector> Ordering;
+  typedef std::optional<TfTokenVector> Ordering;
 
   /// Sample times.
   typedef UsdAbc_AlembicDataReader::TimeSamples TimeSamples;
@@ -773,13 +772,17 @@ class _ReaderContext {
                  const UsdAbc_AlembicDataAny &value) const;
 
   // Custom auto-lock that safely ignores a NULL pointer.
-  class _Lock : boost::noncopyable {
+  class _Lock {
    public:
     _Lock(std::recursive_mutex *mutex) : _mutex(mutex)
     {
       if (_mutex)
         _mutex->lock();
     }
+
+    _Lock (const _Lock &) = delete;
+    _Lock &operator=(const _Lock &) = delete;
+
     ~_Lock()
     {
       if (_mutex)
@@ -2457,7 +2460,7 @@ struct _CopyXform {
   }
 
  private:
-  mutable boost::optional<MetaData> _metadata;
+  mutable std::optional<MetaData> _metadata;
 };
 
 /// Base class to copy attributes of an almebic camera to a USD camera
@@ -3480,7 +3483,7 @@ static std::string _ReadPrim(_ReaderContext &context,
 
     // Discard name children ordering since we don't have any name
     // children (except via the prototype reference).
-    instance->primOrdering = boost::none;
+    instance->primOrdering = std::nullopt;
   }
 
   // Get the prim cache.  If instance is true then prim is the prototype,
@@ -3533,7 +3536,7 @@ static std::string _ReadPrim(_ReaderContext &context,
     if (instance && instance->promoted) {
       // prim is the prototype.
       prim.properties.clear();
-      prim.propertyOrdering = boost::none;
+      prim.propertyOrdering = std::nullopt;
       prim.metadata.clear();
       prim.propertiesCache.clear();
     }

Sources/UsdAbc/alembicWriter.cpp

@@ -47,7 +47,6 @@
 #include <Alembic/AbcGeom/OXform.h>
 #include <Alembic/AbcGeom/Visibility.h>
 #include <algorithm>
-#include <boost/functional/hash.hpp>
 #include <functional>
 #include <memory>
 #include <pxr/pxrns.h>
@@ -651,7 +650,7 @@ class _WriterContext {
   /// Returns the Usd data.
   const SdfAbstractData &GetData() const
   {
-    return *boost::get_pointer(_data);
+    return *get_pointer(_data);
   }
 
   /// Sets or resets the flag named \p flagName.
@@ -1388,8 +1387,7 @@ void _Copy(const _WriterSchema &schema,
            DST *dst,
            R (DST::*method)(T))
 {
-  typedef typename boost::remove_const<typename boost::remove_reference<T>::type>::type
-      SampleValueType;
+  typedef std::remove_const_t<std::remove_reference_t<T>> SampleValueType;
 
   const SdfValueTypeName &usdType = samples.GetTypeName();
   const _WriterSchema::Converter &converter = schema.GetConverter(usdType);
@@ -1414,8 +1412,7 @@ void _Copy(const _WriterSchema &schema,
            DST *dst,
            R (DST::*method)(T))
 {
-  typedef typename boost::remove_const<typename boost::remove_reference<T>::type>::type
-      SampleValueType;
+  typedef std::remove_const_t<std::remove_reference_t<T>> SampleValueType;
 
   const SdfValueTypeName &usdType = samples.GetTypeName();
 

Sources/UsdAbc/include/UsdAbc/alembicReader.h

@@ -29,7 +29,6 @@
 #include "Sdf/abstractData.h"
 #include "Sdf/fileFormat.h"
 #include "Tf/token.h"
-#include <boost/noncopyable.hpp>
 #include <memory>
 #include <pxr/pxrns.h>
 #include <stdint.h>
@@ -45,11 +44,13 @@ PXR_NAMESPACE_OPEN_SCOPE
 ///
 /// An alembic reader suitable for an SdfAbstractData.
 ///
-class UsdAbc_AlembicDataReader : boost::noncopyable {
+class UsdAbc_AlembicDataReader {
  public:
   typedef int64_t Index;
 
   UsdAbc_AlembicDataReader();
+  UsdAbc_AlembicDataReader(const UsdAbc_AlembicDataReader &) = delete;
+  UsdAbc_AlembicDataReader &operator=(const UsdAbc_AlembicDataReader &) = delete;
   ~UsdAbc_AlembicDataReader();
 
   /// Open a file.  Returns \c true on success;  errors are reported by