From cb9efa4e8266b67ddb5c19a107af389cdedce49c Mon Sep 17 00:00:00 2001
From: Jesse Plamondon-Willard <github@jplamondonw.com>
Date: Fri, 21 Oct 2016 19:42:09 -0400
Subject: add support for platform targeting

---
 README.md           | 55 ++++++++++++++++++++++++++++++++++++++++++++---------
 build/smapi.targets | 31 ++++++++++++++++++++++++++----
 package.nuspec      |  8 ++++----
 3 files changed, 77 insertions(+), 17 deletions(-)

diff --git a/README.md b/README.md
index e1b065ec..b94c118b 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,18 @@
 **Stardew.ModBuildConfig** is an open-source NuGet package which automates the build configuration
 for crossplatform [Stardew Valley](http://stardewvalley.net/) mods that use SMAPI.
 
-The configuration...
+## Usage
+Basically this package lets you write your mod once, and compile it on any computer. It detects
+your current platform (Linux, Mac, or Windows) and game path, and injects the right references
+automatically. You can also target a specific platform to create a mod package compatible with that
+platform.
 
-1. detects the operating system (Linux, Mac, or Windows) and the Stardew Valley install path;
-2. injects the correct references to Stardew Valley, SMAPI, and XNA/MonoGame;
-3. (on Windows) configures Visual Studio so you can launch the game for debugging;
-4. and adds a `GamePath` variable which can be used to automate mod installation during testing
-   if desired.
+More specifically, the configuration...
+
+1. detects the operating system and Stardew Valley path;
+2. injects the right references to Stardew Valley, SMAPI, and XNA/MonoGame for your platform;
+3. configures Visual Studio so you can launch the game for debugging (_Windows only_);
+4. and adds a `GamePath` variable which can be used to script mod packaging if desired.
 
 ## Installation
 ### Creating a new mod
@@ -23,7 +28,7 @@ The configuration...
 
 ## Configuration
 ### Custom game path
-If you customised where Stardew Valley is installed, you can add your path to the list to try.
+If you customised where Stardew Valley is installed, you can specify where it is.
 
 1. Get the full path to the directory containing the Stardew Valley executable.
 2. Add this section to your `.csproj` file (anywhere before the added `<Import` line):
@@ -34,10 +39,42 @@ If you customised where Stardew Valley is installed, you can add your path to th
    </PropertyGroup>
    ```
 
+The configuration will check your custom path first, then fall back to the default paths. (That way
+you can still compile it normally on a different computer.)
+
+### Target platform
+By default the build configuration will target your current platform (e.g. Linux, Mac, or Windows).
+If you're compiling it for a different platform (and have the required dependencies installed), you
+can manually override the platform detection.
+
+You can define it...
+
+* in your `.csproj` (anywhere before the added `<Import` line). Valid values are `Linux`, `Mac`, or
+  `Windows`.
+   
+   ```
+   <PropertyGroup>
+     <GamePlatform>Windows</GamePlatform>
+   </PropertyGroup>
+   ```
+
+* _or_ by setting one of these compile constant: `GAME_PLATFORM_LINUX`, `GAME_PLATFORM_MAC`, or
+  `GAME_PLATFORM_WINDOWS`.
+  * <small>In Visual Studio: right-click on the project and choose _Properties_. Click the _Build_
+    tab, and enter the constants into the _Conditional compilation symbols_ field.</small>
+  * <small>In MonoDevelop: right-click on the project and choose _Options. Click the
+    _Build » Compiler_ tab, and enter the constants into the _Define Symbols_ field.</small>
+
 ### Compatibility with mod builders
 The configuration is designed for compatibility with third-party mod compilers. [Silverplum](https://github.com/rumangerst/SilVerPLuM)
-is officially supported, and you can inject the `GAMEPATH` environment variable to override the
-detected game path.
+is officially supported, and mod builds can set the following environment variables:
+
+* `GAMEPATH`: overrides the Stardew Valley install path.
+* `GAMEPLATFORM`: overrides the detected platform. Should be only of `Linux`, `Mac`, or `Windows`.
+
+## Versions
+* 1.0: initial release.
+* 1.1: added support for targeting platforms.
 
 ## See also
 * [NuGet package](https://www.nuget.org/packages/Pathoschild.Stardew.ModBuildConfig)
diff --git a/build/smapi.targets b/build/smapi.targets
index 2c0ca5b7..074581b4 100644
--- a/build/smapi.targets
+++ b/build/smapi.targets
@@ -1,5 +1,23 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <!-- find game install path -->
+  <!--######
+  ## select target OS
+  #######-->
+  <PropertyGroup>
+    <!-- from override -->
+    <GamePlatform Condition="$(GamePlatform) != 'Linux' AND $(GamePlatform) != 'Mac' AND $(GamePlatform) != 'Windows'"></GamePlatform>
+    <GamePlatform Condition="$(DefineConstants.Contains('GAME_PLATFORM_LINUX'))">Linux</GamePlatform>
+    <GamePlatform Condition="$(DefineConstants.Contains('GAME_PLATFORM_MAC'))">Mac</GamePlatform>
+    <GamePlatform Condition="$(DefineConstants.Contains('GAME_PLATFORM_WINDOWS'))">Windows</GamePlatform>
+
+    <!-- from OS -->
+    <GamePlatform Condition="$(GamePlatform) == '' AND $(OS) == 'Unix'">Linux</GamePlatform>
+    <GamePlatform Condition="$(GamePlatform) == '' AND $(OS) == 'OSX'">Mac</GamePlatform>
+    <GamePlatform Condition="$(GamePlatform) == '' AND $(OS) == 'Windows_NT'">Windows</GamePlatform>
+  </PropertyGroup>
+
+  <!--######
+  ## select game path
+  #######-->
   <PropertyGroup>
     <!-- injected by Silverplum -->
     <GamePath Condition="!Exists('$(GamePath)')">$(STARDEWVALLEY_DIR)</GamePath>
@@ -16,9 +34,11 @@
     <GamePath Condition="!Exists('$(GamePath)')">C:\Program Files (x86)\Steam\steamapps\common\Stardew Valley</GamePath>
   </PropertyGroup>
 
-  <!-- set up configuration -->
+  <!--######
+  ## set up configuration
+  #######-->
   <Choose>
-    <When Condition="$(OS) == 'Windows_NT'">
+    <When Condition="$(GamePlatform) == 'Windows'">
       <!-- references -->
       <ItemGroup>
         <Reference Include="Microsoft.Xna.Framework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=842cf8be1de50553, processorArchitecture=x86" />
@@ -63,8 +83,11 @@
     </Otherwise>
   </Choose>
 
-  <!-- if game path is invalid, show one user-friendly error instead of a slew of reference errors -->
+  <!--######
+  ## validate
+  #######-->
   <Target Name="BeforeBuild">
+    <!-- if game path is invalid, show one user-friendly error instead of a slew of reference errors -->
     <Error Condition="!Exists('$(GamePath)')" Text="Failed to find the game install path automatically; edit the *.csproj file and manually add a &lt;GamePath&gt; setting with the full directory path containing the Stardew Valley executable." />
   </Target>
 </Project>
\ No newline at end of file
diff --git a/package.nuspec b/package.nuspec
index 58701695..3236e636 100644
--- a/package.nuspec
+++ b/package.nuspec
@@ -2,16 +2,16 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
   <metadata>
     <id>Pathoschild.Stardew.ModBuildConfig</id>
-    <version>1.0.1</version>
+    <version>1.1</version>
     <title>MSBuild config for Stardew Valley mods</title>
     <authors>Pathoschild</authors>
     <owners>Pathoschild</owners>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <licenseUrl>https://github.com/Pathoschild/Stardew.ModBuildConfig/blob/1.0/LICENSE.txt</licenseUrl>
+    <licenseUrl>https://github.com/Pathoschild/Stardew.ModBuildConfig/blob/1.1/LICENSE.txt</licenseUrl>
     <projectUrl>https://github.com/Pathoschild/Stardew.ModBuildConfig</projectUrl>
-    <iconUrl>https://raw.githubusercontent.com/Pathoschild/Stardew.ModBuildConfig/1.0/assets/nuget-icon.png</iconUrl>
+    <iconUrl>https://raw.githubusercontent.com/Pathoschild/Stardew.ModBuildConfig/1.1/assets/nuget-icon.png</iconUrl>
     <description>Automates the build configuration for a crossplatform Stardew Valley mod that uses SMAPI.</description>
-    <releaseNotes>Corrected package structure</releaseNotes>
+    <releaseNotes>Added support for targeting platforms.</releaseNotes>
   </metadata>
   <files>
     <file src="build/smapi.targets" target="build/Pathoschild.Stardew.ModBuildConfig.targets" />
-- 
cgit