Add a Swift Package Manager package

.gitignore

@@ -81,3 +81,7 @@ Thumbs.db
 # Ignore python compiled files
 *.pyc
 /test/android/jni/#Android.mk#
+
+# Swift package manager
+/.swiftpm
+/.build

CMakeLists.txt

@@ -118,7 +118,7 @@ check_include_files(malloc.h HAVE_MALLOC_H)
 configure_file(src/realm/util/config.h.in src/realm/util/config.h)
 
 # Configure source code to use right version number
-configure_file(src/realm/version.hpp.in src/realm/version.hpp)
+configure_file(src/realm/version_numbers.hpp.in src/realm/version_numbers.hpp)
 
 set(DEPRECATED_CONFIG_FILE "${RealmCore_SOURCE_DIR}/src/realm/util/config.h")
 if(EXISTS "${DEPRECATED_CONFIG_FILE}")

Package.swift

@@ -0,0 +1,46 @@
+// swift-tools-version:5.0
+
+import PackageDescription
+import Foundation
+
+let versionStr = "5.22.0"
+let versionPieces = versionStr.split(separator: "-")
+let versionCompontents = versionPieces[0].split(separator: ".")
+let versionExtra = versionPieces.count > 1 ? versionPieces[1] : ""
+
+let package = Package(
+    name: "RealmCore",
+    products: [
+        .library(
+            name: "RealmCore",
+            targets: ["RealmCore"]),
+    ],
+    targets: [
+        .target(
+            name: "RealmCore",
+            path: "src",
+            exclude: [
+                "realm/tools",
+                "realm/parser",
+                "realm/metrics",
+                "realm/exec",
+                "win32",
+                "external"
+            ],
+            publicHeadersPath: ".",
+            cxxSettings: [
+                .headerSearchPath("src"),
+                .define("REALM_NO_CONFIG"),
+                .define("REALM_INSTALL_LIBEXECDIR", to: ""),
+                .define("REALM_ENABLE_ASSERTIONS", to: "1"),
+                .define("REALM_ENABLE_ENCRYPTION", to: "1"),
+
+                .define("REALM_VERSION_MAJOR", to: String(versionCompontents[0])),
+                .define("REALM_VERSION_MINOR", to: String(versionCompontents[1])),
+                .define("REALM_VERSION_PATCH", to: String(versionCompontents[2])),
+                .define("REALM_VERSION_EXTRA", to: "\"\(versionExtra)\""),
+                .define("REALM_VERSION_STRING", to: "\"\(versionStr)\""),
+            ]),
+    ],
+    cxxLanguageStandard: .cxx14
+)

src/realm/CMakeLists.txt

@@ -129,6 +129,7 @@ set(REALM_INSTALL_GENERAL_HEADERS
     timestamp.hpp
     unicode.hpp
     utilities.hpp
+    version.hpp
     version_id.hpp
     views.hpp
 ) # REALM_INSTALL_GENERAL_HEADERS
@@ -368,7 +369,7 @@ install(FILES ${REALM_OTHER_UTIL_HEADERS}
 install(FILES ${REALM_METRICS_HEADERS}
         DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/realm/metrics
         COMPONENT devel)
-install(FILES ${PROJECT_BINARY_DIR}/src/realm/version.hpp
+install(FILES ${PROJECT_BINARY_DIR}/src/realm/version_numbers.hpp
         DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/realm
         COMPONENT devel)
 install(FILES ${PROJECT_BINARY_DIR}/src/realm/util/config.h

src/realm/util/features.h

@@ -27,7 +27,9 @@
 #define NOMINMAX
 #endif
 
+#ifndef REALM_NO_CONFIG
 #include <realm/util/config.h>
+#endif
 
 /* The maximum number of elements in a B+-tree node. Applies to inner nodes and
  * to leaves. The minimum allowable value is 2.

src/realm/version.hpp.in → src/realm/version.hpp

@@ -21,13 +21,9 @@
 
 #include <string>
 
-// Do not use `cmakedefine` here, as certain versions can be 0, which CMake
-// interprets as being undefined.
-#define REALM_VERSION_MAJOR @CONFIG_VERSION_MAJOR@
-#define REALM_VERSION_MINOR @CONFIG_VERSION_MINOR@
-#define REALM_VERSION_PATCH @CONFIG_VERSION_PATCH@
-#define REALM_VERSION_EXTRA "@CONFIG_VERSION_TWEAK@"
-#define REALM_VERSION_STRING "@CONFIG_VERSION@"
+#ifndef REALM_VERSION_MAJOR
+#include <realm/version_numbers.hpp>
+#endif
 
 #define REALM_PRODUCT_NAME "realm-core"
 #define REALM_VER_CHUNK "[" REALM_PRODUCT_NAME "-" REALM_VERSION_STRING "]"

src/realm/version_numbers.hpp.in

@@ -0,0 +1,30 @@
+/*************************************************************************
+ *
+ * Copyright 2016 Realm Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ **************************************************************************/
+
+#ifndef REALM_VERSION_NUMBERS_HPP
+#define REALM_VERSION_NUMBERS_HPP
+
+// Do not use `cmakedefine` here, as certain versions can be 0, which CMake
+// interprets as being undefined.
+#define REALM_VERSION_MAJOR @CONFIG_VERSION_MAJOR@
+#define REALM_VERSION_MINOR @CONFIG_VERSION_MINOR@
+#define REALM_VERSION_PATCH @CONFIG_VERSION_PATCH@
+#define REALM_VERSION_EXTRA "@CONFIG_VERSION_TWEAK@"
+#define REALM_VERSION_STRING "@CONFIG_VERSION@"
+
+#endif // REALM_VERSION_NUMBERS_HPP

tools/release-init.sh

@@ -21,6 +21,10 @@ git checkout -b prepare-$realm_version
 sed -i.bak -e "s/^VERSION.*/VERSION=${realm_version}/" "${project_dir}/dependencies.list"
 rm "${project_dir}/dependencies.list.bak" || exit 1
 
+# update Package.swift
+sed -i.bak -e "s/^let versionStr =.*/let versionStr = \"${realm_version}\"/" "${project_dir}/Package.swift"
+rm "${project_dir}/Package.swift.bak" || exit 1
+
 RELEASE_HEADER="# $realm_version Release notes" || exit 1
 sed -i.bak -e "1s/.*/$RELEASE_HEADER/" "${project_dir}/CHANGELOG.md" || exit 1
 rm "${project_dir}/CHANGELOG.md.bak" || exit 1