[WiP] Drop support for .NET Standard 2.0 and Mono

See: https://devblogs.microsoft.com/dotnet/the-future-of-net-standard/
kleisauke · Jan 14, 2024 · 4d627c6 · 4d627c6
1 parent 095b2ec
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diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -17,10 +17,6 @@ jobs:
           - os: ubuntu-22.04
             container: mcr.microsoft.com/dotnet/sdk:8.0-alpine3.18
             script: ./build.sh
-          # TODO(kleisauke): Re-enable Mono CI when C# 9 features are supported.
-          # - os: ubuntu-22.04
-          #   script: ./build/test-mono.sh
-          #   allow_failures: true
           - os: macos-12
             script: ./build.sh
           - os: windows-2022

diff --git a/README.md b/README.md
@@ -37,8 +37,7 @@ which gives some more background.
 ## Supported platforms
 
 - .NET Framework 4.5.2 and higher
-- .NET Standard 2.0 and higher
-- Mono
+- .NET 6.0 and higher
 
 ## Install
 
@@ -58,7 +57,7 @@ libvips binaries for the most common platforms (see
 | **Linux ARM64v8 musl**<sup>3</sup>  | [![NetVips.Native.linux-musl-arm64-badge]][NetVips.Native.linux-musl-arm64-nuget] |
 | **Linux ARMv7**                     | [![NetVips.Native.linux-arm-badge]][NetVips.Native.linux-arm-nuget]               |
 | **macOS x64**                       | [![NetVips.Native.osx-x64-badge]][NetVips.Native.osx-x64-nuget]                   |
-| **macOS ARM64**<sup>4</sup>         | [![NetVips.Native.osx-arm64-badge]][NetVips.Native.osx-arm64-nuget]               |
+| **macOS ARM64**                     | [![NetVips.Native.osx-arm64-badge]][NetVips.Native.osx-arm64-nuget]               |
 
 [NetVips.Native.win-x64-badge]: https://img.shields.io/nuget/v/NetVips.Native.win-x64.svg
 [NetVips.Native.win-x64-nuget]: https://www.nuget.org/packages/NetVips.Native.win-x64
@@ -83,8 +82,7 @@ libvips binaries for the most common platforms (see
 
 <sup>1</sup> The version number of these NuGet packages is in sync with libvips' version number.  
 <sup>2</sup> Uses glibc as the standard C library (Ubuntu, Debian, etc).  
-<sup>3</sup> Uses musl as the standard C library (Alpine, Gentoo Linux, etc).  
-<sup>4</sup> Requires .NET 6.0 or higher.
+<sup>3</sup> Uses musl as the standard C library (Alpine, Gentoo Linux, etc).
 
 Then just install this package, perhaps:
 

diff --git a/build/Build.cs b/build/Build.cs
@@ -132,21 +132,10 @@ protected override void OnBuildInitialized()
         .DependsOn(Clean)
         .Executes(() =>
         {
-            // Need to build the macOS and *nix DLL first.
-            DotNetBuild(c => c
-                .SetProjectFile(Solution.NetVips)
-                .SetConfiguration(Configuration)
-                .SetFramework("netstandard2.0")
-                .AddProperty("Platform", "AnyCPU")
-                .CombineWith(
-                    new[] { "OSX", "Unix" },
-                    (_, os) => _.AddProperty("TargetOS", os)));
-
             DotNetPack(c => c
                 .SetProject(Solution.NetVips)
                 .SetConfiguration(Configuration)
                 .SetOutputDirectory(ArtifactsDirectory)
-                .AddProperty("TargetOS", "Windows")
             );
         });
 

diff --git a/build/native/NetVips.Native.linux-arm.nuspec b/build/native/NetVips.Native.linux-arm.nuspec
@@ -22,9 +22,6 @@
   </metadata>
   <files>
 
-    <!-- The .NET Framework >= 4.6.1 build bits for Mono runtime -->
-    <file src="targets\NetVips.Native.linux-arm.targets" target="build/net461" />
-
     <!-- Include libvips Linux ARM64v8 binaries -->
     <file src="pack\linux-arm\*.so*" target="runtimes/linux-arm/native" />
 
@@ -35,7 +32,7 @@
     <file src="pack\linux-arm\versions.json" />
 
     <!-- A dummy reference which prevents NuGet from adding any compilation references when this package is imported -->
-    <file src="_._" target="lib/netstandard1.0" />
+    <file src="_._" target="lib/net6.0" />
 
   </files>
 </package>
diff --git a/build/native/NetVips.Native.linux-arm64.nuspec b/build/native/NetVips.Native.linux-arm64.nuspec
@@ -22,9 +22,6 @@
   </metadata>
   <files>
 
-    <!-- The .NET Framework >= 4.6.1 build bits for Mono runtime -->
-    <file src="targets\NetVips.Native.linux-arm64.targets" target="build/net461" />
-
     <!-- Include libvips Linux ARM64v8 binaries -->
     <file src="pack\linux-arm64\*.so*" target="runtimes/linux-arm64/native" />
 
@@ -35,7 +32,7 @@
     <file src="pack\linux-arm64\versions.json" />
 
     <!-- A dummy reference which prevents NuGet from adding any compilation references when this package is imported -->
-    <file src="_._" target="lib/netstandard1.0" />
+    <file src="_._" target="lib/net6.0" />
 
   </files>
 </package>
diff --git a/build/native/NetVips.Native.linux-musl-arm64.nuspec b/build/native/NetVips.Native.linux-musl-arm64.nuspec
@@ -32,8 +32,7 @@
     <file src="pack\linux-musl-arm64\versions.json" />
 
     <!-- A dummy reference which prevents NuGet from adding any compilation references when this package is imported -->
-    <!-- Note: Linux musl ARM64v8 is supported since .NET Core 3.0 (.NET Standard 2.1) -->
-    <file src="_._" target="lib/netstandard2.1" />
+    <file src="_._" target="lib/net6.0" />
 
   </files>
 </package>
diff --git a/build/native/NetVips.Native.linux-musl-x64.nuspec b/build/native/NetVips.Native.linux-musl-x64.nuspec
@@ -22,9 +22,6 @@
   </metadata>
   <files>
 
-    <!-- The .NET Framework >= 4.6.1 build bits for Mono runtime -->
-    <file src="targets\NetVips.Native.linux-musl-x64.targets" target="build/net461" />
-
     <!-- Include libvips Linux musl x64 binaries -->
     <file src="pack\linux-musl-x64\*.so*" target="runtimes/linux-musl-x64/native" />
 
@@ -35,7 +32,7 @@
     <file src="pack\linux-musl-x64\versions.json" />
 
     <!-- A dummy reference which prevents NuGet from adding any compilation references when this package is imported -->
-    <file src="_._" target="lib/netstandard1.0" />
+    <file src="_._" target="lib/net6.0" />
 
   </files>
 </package>
diff --git a/build/native/NetVips.Native.linux-x64.nuspec b/build/native/NetVips.Native.linux-x64.nuspec
@@ -22,9 +22,6 @@
   </metadata>
   <files>
 
-    <!-- The .NET Framework >= 4.6.1 build bits for Mono runtime -->
-    <file src="targets\NetVips.Native.linux-x64.targets" target="build/net461" />
-
     <!-- Include libvips Linux x64 binaries -->
     <file src="pack\linux-x64\*.so*" target="runtimes/linux-x64/native" />
 
@@ -35,7 +32,7 @@
     <file src="pack\linux-x64\versions.json" />
 
     <!-- A dummy reference which prevents NuGet from adding any compilation references when this package is imported -->
-    <file src="_._" target="lib/netstandard1.0" />
+    <file src="_._" target="lib/net6.0" />
 
   </files>
 </package>
diff --git a/build/native/NetVips.Native.nuspec b/build/native/NetVips.Native.nuspec
@@ -21,33 +21,20 @@
 
     <!-- dependencies -->
     <dependencies>
-	  <!-- In-sync with netstandard2.0 below except for NetVips.Native.win-arm64, NetVips.Native.linux-musl-arm64 and NetVips.Native.osx-arm64 -->
-      <group targetFramework="netstandard2.1">
+      <group targetFramework="net6.0">
         <dependency id="NetVips.Native.linux-x64" version="$version$" include="native" />
         <dependency id="NetVips.Native.linux-musl-x64" version="$version$" include="native" />
-        <!-- Linux musl ARM64v8 is supported since .NET Core 3.0 (.NET Standard 2.1) -->
         <dependency id="NetVips.Native.linux-musl-arm64" version="$version$" include="native" />
         <dependency id="NetVips.Native.linux-arm" version="$version$" include="native" />
         <dependency id="NetVips.Native.linux-arm64" version="$version$" include="native" />
         <dependency id="NetVips.Native.osx-x64" version="$version$" include="native" />
-        <!-- macOS ARM64 (Apple Silicon) is supported on .NET 6.0, but Mono has back-ported this to .NET Standard 2.1 -->
         <dependency id="NetVips.Native.osx-arm64" version="$version$" include="native" />
         <dependency id="NetVips.Native.win-x64" version="$version$" include="native" />
         <dependency id="NetVips.Native.win-x86" version="$version$" include="native" />
-        <!-- Windows ARM64 is supported since .NET 5.0 and back-ported to .NET Core 3.1 (.NET Standard 2.1) -->
         <dependency id="NetVips.Native.win-arm64" version="$version$" include="native" />
       </group>
-      <group targetFramework="netstandard2.0">
-        <dependency id="NetVips.Native.linux-x64" version="$version$" include="native" />
-        <dependency id="NetVips.Native.linux-musl-x64" version="$version$" include="native" />
-        <dependency id="NetVips.Native.linux-arm" version="$version$" include="native" />
-        <dependency id="NetVips.Native.linux-arm64" version="$version$" include="native" />
-        <dependency id="NetVips.Native.osx-x64" version="$version$" include="native" />
-        <dependency id="NetVips.Native.win-x64" version="$version$" include="native" />
-        <dependency id="NetVips.Native.win-x86" version="$version$" include="native" />
-      </group>
       <group targetFramework="net452">
-        <!-- Only .NET Framework/Mono needs to include the build directory containing the .targets file -->
+        <!-- Only .NET Framework needs to include the build directory containing the .targets file -->
         <dependency id="NetVips.Native.win-x64" version="$version$" include="native, build" />
         <dependency id="NetVips.Native.win-x86" version="$version$" include="native, build" />
       </group>

diff --git a/build/native/NetVips.Native.osx-arm64.nuspec b/build/native/NetVips.Native.osx-arm64.nuspec
@@ -32,8 +32,7 @@
     <file src="pack\osx-arm64\versions.json" />
 
     <!-- A dummy reference which prevents NuGet from adding any compilation references when this package is imported -->
-    <!-- Note: macOS ARM64 (Apple Silicon) is supported on .NET 6.0, but Mono has back-ported this to .NET Standard 2.1 -->
-    <file src="_._" target="lib/netstandard2.1" />
+    <file src="_._" target="lib/net6.0" />
 
   </files>
 </package>
diff --git a/build/native/NetVips.Native.osx-x64.nuspec b/build/native/NetVips.Native.osx-x64.nuspec
@@ -22,9 +22,6 @@
   </metadata>
   <files>
 
-    <!-- The .NET Framework >= 4.6.1 build bits for Mono runtime -->
-    <file src="targets\NetVips.Native.osx-x64.targets" target="build/net461" />
-
     <!-- Include libvips macOS x64 binaries -->
     <file src="pack\osx-x64\*.dylib" target="runtimes/osx-x64/native" />
 
@@ -35,7 +32,7 @@
     <file src="pack\osx-x64\versions.json" />
 
     <!-- A dummy reference which prevents NuGet from adding any compilation references when this package is imported -->
-    <file src="_._" target="lib/netstandard1.0" />
+    <file src="_._" target="lib/net6.0" />
 
   </files>
 </package>
diff --git a/build/native/NetVips.Native.win-arm64.nuspec b/build/native/NetVips.Native.win-arm64.nuspec
@@ -32,8 +32,7 @@
     <file src="pack\win-arm64\versions.json" />
 
     <!-- A dummy reference which prevents NuGet from adding any compilation references when this package is imported -->
-    <!-- Note: Windows ARM64 is supported since .NET 5.0 and back-ported to .NET Core 3.1 (.NET Standard 2.1) -->
-    <file src="_._" target="lib/netstandard2.1" />
+    <file src="_._" target="lib/net6.0" />
 
   </files>
 </package>
diff --git a/build/native/NetVips.Native.win-x64.nuspec b/build/native/NetVips.Native.win-x64.nuspec
@@ -22,8 +22,8 @@
   </metadata>
   <files>
 
-    <!-- The .NET Framework >= 4.5 build bits -->
-    <file src="targets\NetVips.Native.win-x64.targets" target="build/net45" />
+    <!-- The .NET Framework >= 4.5.2 build bits -->
+    <file src="targets\NetVips.Native.win-x64.targets" target="build/net452" />
 
     <!-- Include libvips Windows x64 binaries -->
     <file src="pack\win-x64\*.dll" target="runtimes/win-x64/native" />

diff --git a/build/native/NetVips.Native.win-x86.nuspec b/build/native/NetVips.Native.win-x86.nuspec
@@ -22,8 +22,8 @@
   </metadata>
   <files>
 
-    <!-- The .NET Framework >= 4.5 build bits -->
-    <file src="targets\NetVips.Native.win-x86.targets" target="build/net45" />
+    <!-- The .NET Framework >= 4.5.2 build bits -->
+    <file src="targets\NetVips.Native.win-x86.targets" target="build/net452" />
 
     <!-- Include libvips Windows x86 binaries -->
     <file src="pack\win-x86\*.dll" target="runtimes/win-x86/native" />

diff --git a/build/native/targets/NetVips.Native.linux-arm.targets b/build/native/targets/NetVips.Native.linux-arm.targets
diff --git a/build/native/targets/NetVips.Native.linux-arm64.targets b/build/native/targets/NetVips.Native.linux-arm64.targets
diff --git a/build/native/targets/NetVips.Native.linux-musl-x64.targets b/build/native/targets/NetVips.Native.linux-musl-x64.targets
diff --git a/build/native/targets/NetVips.Native.linux-x64.targets b/build/native/targets/NetVips.Native.linux-x64.targets
diff --git a/build/native/targets/NetVips.Native.osx-x64.targets b/build/native/targets/NetVips.Native.osx-x64.targets
diff --git a/build/test-mono.sh b/build/test-mono.sh