Add a option to opt into central package management

- New Option 'useCentralPackageManagement'
- Deactive package management by default

Author: janbiehl

CodeGenerator/Generators/CsprojGen.cs

@@ -23,7 +23,9 @@ private string GetFileContents()
     {
         var optionalNullableProperty = dbDriver.Options.DotnetFramework.IsDotnetCore() ? Environment.NewLine + "        <Nullable>enable</Nullable>" : "";
         var referenceItems = dbDriver.GetPackageReferences()
-            .Select(p => $"""        <PackageReference Include="{p.Key}" Version="{p.Value}"/>""")
+            .Select(p => dbDriver.Options.UseCentralPackageManagement 
+                    ? $"""        <PackageReference Include="{p.Key}" />"""
+                    : $"""        <PackageReference Include="{p.Key}" Version="{p.Value}"/>""")
             .JoinByNewLine();
 
         return $"""
@@ -37,8 +39,7 @@ dotnet sln add {outputDirectory}/{projectName}.csproj
                         <TargetFramework>{dbDriver.Options.DotnetFramework.ToName()}</TargetFramework>
                         <RootNamespace>{namespaceName}</RootNamespace>
                         <OutputType>Library</OutputType>{optionalNullableProperty}
-                        <!-- Opt out of centralized package management -->
-                        <ManagePackageVersionsCentrally>false</ManagePackageVersionsCentrally>
+                        <ManagePackageVersionsCentrally>{dbDriver.Options.UseCentralPackageManagement}</ManagePackageVersionsCentrally>
                     </PropertyGroup>
                 
                     <ItemGroup>

PluginOptions/Options.cs

@@ -25,6 +25,8 @@ public Options(GenerateRequest generateRequest)
         if (rawOptions.DebugRequest && generateRequest.Settings.Codegen.Wasm is not null)
             throw new ArgumentException("Debug request mode cannot be used with WASM plugin");
         DebugRequest = rawOptions.DebugRequest;
+        
+        UseCentralPackageManagement = rawOptions.UseCentralPackageManagement;
     }
 
     public DriverName DriverName { get; }
@@ -45,6 +47,12 @@ public Options(GenerateRequest generateRequest)
 
     public bool DebugRequest { get; }
 
+    /// <summary>
+    /// When true generated code will opt in to central package management.
+    /// https://learn.microsoft.com/en-us/nuget/consume-packages/central-package-management
+    /// </summary>
+    public bool UseCentralPackageManagement { get; }
+
     private static readonly Dictionary<string, DriverName> EngineToDriverMapping = new()
     {
         { "mysql", DriverName.MySqlConnector },

PluginOptions/RawOptions.cs

@@ -28,6 +28,9 @@ public record RawOptions
 
     [JsonPropertyName("debugRequest")]
     public bool DebugRequest { get; init; }
+
+    [JsonPropertyName("useCentralPackageManagement")]
+    public bool UseCentralPackageManagement { get; init; }
 }
 
 public class OverrideOption

unit-tests/CodegenTests/CodegenCsprojTests.cs

@@ -105,4 +105,54 @@ public void TestOverrideDapperVersion()
 
         Assert.That(actual, Is.EqualTo(expected));
     }
+
+    [Test]
+    public async Task TestGenerationWithoutCentralPackageManagement()
+    {
+        GenerateRequest request = new () 
+        {
+            Settings = _mysqlSettings,
+            Catalog = _emptyCatalog,
+            PluginOptions =
+                ByteString.CopyFrom("{\"useCentralPackageManagement\": false}",
+                    Encoding.UTF8)
+        };
+        
+        var response = await CodeGenerator.Generate(request);
+        var csprojFile = response.Files.First(f => f.Name == $"{request.Settings.Codegen.Out}.csproj");
+        XmlDocument doc = new ();
+        doc.LoadXml(csprojFile.Contents.ToStringUtf8());
+
+        var centralPackageManagementNode = doc.SelectSingleNode("//ManagePackageVersionsCentrally");
+        Assert.That(centralPackageManagementNode, Is.Not.Null);
+        Assert.That(centralPackageManagementNode.InnerText, Is.EqualTo("False"));
+            
+        var firstPackageReference = doc.SelectSingleNode("//PackageReference[@Version]");
+        Assert.That(firstPackageReference, Is.Not.Null);
+    }
+
+    [Test]
+    public async Task TestGenerationWithCentralPackageManagement()
+    {
+        GenerateRequest request = new () 
+        {
+            Settings = _mysqlSettings,
+            Catalog = _emptyCatalog,
+            PluginOptions =
+                ByteString.CopyFrom("{\"useCentralPackageManagement\": true}",
+                    Encoding.UTF8)
+        };
+        
+        var response = await CodeGenerator.Generate(request);
+        var csprojFile = response.Files.First(f => f.Name == $"{request.Settings.Codegen.Out}.csproj");
+        XmlDocument doc = new ();
+        doc.LoadXml(csprojFile.Contents.ToStringUtf8());
+
+        var centralPackageManagementNode = doc.SelectSingleNode("//ManagePackageVersionsCentrally");
+        Assert.That(centralPackageManagementNode, Is.Not.Null);
+        Assert.That(centralPackageManagementNode.InnerText, Is.EqualTo("True"));
+            
+        var firstPackageReference = doc.SelectSingleNode("//PackageReference[@Version]");
+        Assert.That(firstPackageReference, Is.Null); 
+    }
 }