From 15e5f05e7d8e020588f8d1a21280954c0d8701a6 Mon Sep 17 00:00:00 2001
From: Jean-Philip Desjardins <jean-philip.desjardins@polymtl.ca>
Date: Fri, 3 Sep 2021 13:43:00 -0400
Subject: [PATCH] Add CMake integration (#1)

* Add CMake config.
* Set proper Swift version.
* Make module usable through Swift header.
* Add some comments in CMake project.
* Add CMake integration steps in README.
---
 CMakeLists.txt                   | 38 ++++++++++++++++++++++++++++++++
 README.md                        | 15 +++++++++++++
 Sources/CAltKit/module.modulemap |  4 ++++
 3 files changed, 57 insertions(+)
 create mode 100644 CMakeLists.txt
 create mode 100644 Sources/CAltKit/module.modulemap

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..d28050e
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,38 @@
+cmake_minimum_required(VERSION 3.15.1)
+
+project(AltKit LANGUAGES C Swift)
+
+add_library(CAltKit
+    Sources/CAltKit/NSError+ALTServerError.h
+    Sources/CAltKit/NSError+ALTServerError.m
+)
+
+add_library(AltKit
+    Sources/AltKit/Extensions/ALTServerError+Conveniences.swift
+    Sources/AltKit/Extensions/Result+Conveniences.swift
+
+    Sources/AltKit/Server/Connection.swift
+    Sources/AltKit/Server/NetworkConnection.swift
+    Sources/AltKit/Server/Server.swift
+    Sources/AltKit/Server/ServerConnection.swift
+    Sources/AltKit/Server/ServerManager.swift
+    Sources/AltKit/Server/ServerProtocol.swift
+
+    Sources/AltKit/Types/CodableServerError.swift
+)
+
+target_link_libraries(AltKit PRIVATE CAltKit)
+
+set_property(TARGET AltKit PROPERTY XCODE_ATTRIBUTE_SWIFT_VERSION "5.0")
+
+# Make CAltKit's modulemap available to AltKit
+set_property(TARGET AltKit PROPERTY XCODE_ATTRIBUTE_SWIFT_INCLUDE_PATHS "${CMAKE_CURRENT_SOURCE_DIR}/Sources/CAltKit")
+
+# Add binary dir to interface include path to make Swift header accessible to targets using AltKit
+target_include_directories(AltKit INTERFACE ${CMAKE_CURRENT_BINARY_DIR})
+
+# Copy generated Swift header to binary dir
+add_custom_command(TARGET AltKit
+                   POST_BUILD
+                   COMMAND cp $DERIVED_SOURCES_DIR/AltKit-Swift.h ${CMAKE_CURRENT_BINARY_DIR}
+)
diff --git a/README.md b/README.md
index a94c2c2..6344989 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,21 @@ Finally, right-click on your app's `Info.plist`, select "Open As > Source Code",
 <string>[Your app] uses the local network to find and communicate with AltServer.</string>
 ```
 
+### CMake Integration
+
+Note: CMake 3.15 is required for the integration. The integration only works with the Xcode generator.
+
+Steps:
+- Add the AltKit CMake project to your CMake project using `add_subdirectory`.
+- Add Swift to your project's supported languages. (ex.: `project(projName LANGUAGES C Swift)`)
+
+If you're using `add_compile_options` or `target_compile_options` and the Swift compiler complains about the option not being supported, it's possible to use CMake's generator expressions to limit the options to non-Swift source files.
+
+Example:
+```
+add_compile_options($<$<NOT:$<COMPILE_LANGUAGE:Swift>>:-fPIC>)
+```
+
 ## Usage
 
 ### Swift
diff --git a/Sources/CAltKit/module.modulemap b/Sources/CAltKit/module.modulemap
new file mode 100644
index 0000000..e52c084
--- /dev/null
+++ b/Sources/CAltKit/module.modulemap
@@ -0,0 +1,4 @@
+module CAltKit {
+    umbrella "./include"
+    export *
+}