Merge pull request #7398 from xmake-io/csharp

Add csharp support

Author: waruqi

tests/projects/csharp/console/.gitignore

@@ -0,0 +1,6 @@
+.xmake/
+build/
+bin/
+obj/
+vsxmake*/
+.vs/

tests/projects/csharp/console/src/Program.cs

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+Console.WriteLine("hello xmake!");
+

tests/projects/csharp/console/test.lua

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+import("detect.sdks.find_dotnet")
+
+function test_build(t)
+    if is_subhost("msys") then
+        return t:skip("csharp not supported on msys")
+    end
+    local dotnet = find_dotnet()
+    if dotnet and dotnet.sdkver then
+        t:build()
+    else
+        return t:skip("dotnet sdk not found")
+    end
+end

tests/projects/csharp/console/xmake.lua

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+add_rules("mode.debug", "mode.release")
+
+target("test")
+    set_kind("binary")
+    add_rules("csharp")
+    add_files("src/Program.cs")

tests/projects/csharp/console_with_runtime_json/.gitignore

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+.xmake/
+build/
+bin/
+obj/
+vsxmake*/
+.vs/
+

tests/projects/csharp/console_with_runtime_json/src/Program.cs

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+using System.Text.Json;
+
+var runtimeFile = Path.Combine(Directory.GetCurrentDirectory(), "runtime.json");
+if (!File.Exists(runtimeFile)) {
+    Console.WriteLine("runtime.json missing");
+    return;
+}
+
+var json = File.ReadAllText(runtimeFile);
+using var doc = JsonDocument.Parse(json);
+var runtime = doc.RootElement.TryGetProperty("runtime", out var value)
+    ? value.GetString()
+    : "unknown";
+
+Console.WriteLine($"runtime={runtime}");

tests/projects/csharp/console_with_runtime_json/src/runtime.json

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+{
+  "runtime": "xmake",
+  "featureFlags": {
+    "sample": true
+  }
+}
+

tests/projects/csharp/console_with_runtime_json/test.lua

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+import("detect.sdks.find_dotnet")
+
+function test_build(t)
+    if is_subhost("msys") then
+        return t:skip("csharp not supported on msys")
+    end
+    local dotnet = find_dotnet()
+    if dotnet and dotnet.sdkver then
+        t:build()
+    else
+        return t:skip("dotnet sdk not found")
+    end
+end

tests/projects/csharp/console_with_runtime_json/xmake.lua

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+add_rules("mode.debug", "mode.release")
+
+target("app")
+    set_kind("binary")
+    add_rules("csharp")
+    add_files("src/Program.cs")
+    set_rundir("src")

tests/projects/csharp/multiple_library/.gitignore

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+.xmake/
+build/
+bin/
+obj/
+vsxmake*/
+.vs/