(feat, csharp): support extra dependencies (#3957)

generators/csharp/codegen/src/context/AbstractCsharpGeneratorContext.ts

@@ -172,6 +172,8 @@ export abstract class AbstractCsharpGeneratorContext<
 
     public abstract getNamespaceForTypeId(typeId: TypeId): string;
 
+    public abstract getExtraDependencies(): Record<string, string>;
+
     // STOLEN FROM: ruby/TypesGenerator.ts
     // We need a better way to share this sort of ir-processing logic.
     //

generators/csharp/codegen/src/project/CsharpProject.ts

@@ -131,7 +131,8 @@ export class CsharpProject {
                 github: (github) => github.repoUrl,
                 publish: () => undefined,
                 _other: () => undefined
-            })
+            }),
+            context: this.context
         });
         const templateCsProjContents = csproj.toString();
         await writeFile(
@@ -248,6 +249,7 @@ declare namespace CsProj {
         version?: string;
         license?: string;
         githubUrl?: string;
+        context: AbstractCsharpGeneratorContext<BaseCsharpCustomConfigSchema>;
     }
 }
 
@@ -257,15 +259,18 @@ class CsProj {
     private version: string | undefined;
     private license: string | undefined;
     private githubUrl: string | undefined;
+    private context: AbstractCsharpGeneratorContext<BaseCsharpCustomConfigSchema>;
 
-    public constructor({ version, license, githubUrl }: CsProj.Args) {
+    public constructor({ version, license, githubUrl, context }: CsProj.Args) {
         this.version = version;
         this.license = license;
         this.githubUrl = githubUrl;
+        this.context = context;
     }
 
     public toString(): string {
         const propertyGroups = this.getPropertyGroups();
+        const dependencies = this.getDependencies();
         return `
 <Project Sdk="Microsoft.NET.Sdk">
 
@@ -277,8 +282,7 @@ class CsProj {
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="OneOf" Version="3.0.263" />
-        <PackageReference Include="System.Text.Json" Version="8.0.3" />
+        ${dependencies.join(`\n${FOUR_SPACES}${FOUR_SPACES}`)}
     </ItemGroup>
 
     <ItemGroup>
@@ -290,6 +294,16 @@ ${this.getAdditionalItemGroups().join(`\n${FOUR_SPACES}`)}
 `;
     }
 
+    private getDependencies(): string[] {
+        const result: string[] = [];
+        result.push('<PackageReference Include="OneOf" Version="3.0.263" />');
+        result.push('<PackageReference Include="System.Text.Json" Version="8.0.3" />');
+        for (const [name, version] of Object.entries(this.context.getExtraDependencies())) {
+            result.push(`<PackageReference Include="${name}" Version="${version}" />`);
+        }
+        return result;
+    }
+
     private getPropertyGroups(): string[] {
         const result: string[] = [];
         if (this.version != null) {

generators/csharp/model/src/ModelGeneratorContext.ts

@@ -29,4 +29,8 @@ export class ModelGeneratorContext extends AbstractCsharpGeneratorContext<ModelC
     public getAsIsFiles(): string[] {
         return [AsIsFiles.StringEnumSerializer, AsIsFiles.OneOfSerializer, AsIsFiles.CollectionItemSerializer];
     }
+
+    public getExtraDependencies(): Record<string, string> {
+        return {};
+    }
 }

generators/csharp/sdk/CHANGELOG.md

@@ -5,6 +5,19 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.0.33 - 2024-06-21]
+
+- Improvement: The C# generator now supports configuration to specify extra dependencies. Below
+  is an example of the `generators.yml` configuration:  
+
+  ```yml
+  - name: fernapi/fern-csharp-sdk
+    version: 0.0.33
+    config: 
+      extra-dependencies: 
+        moq: "0.23.4"
+  ```
+
 ## [0.0.32 - 2024-06-21]
 
 - Fix: Enum values are JSON serialized before they are sent to the server. For example, if the

generators/csharp/sdk/VERSION

@@ -1 +1 @@
-0.0.32
+0.0.33

generators/csharp/sdk/src/SdkCustomConfig.ts

@@ -2,7 +2,8 @@ import { z } from "zod";
 
 export const SdkCustomConfigSchema = z.strictObject({
     namespace: z.string().optional(),
-    "client-class-name": z.string().optional()
+    "client-class-name": z.string().optional(),
+    "extra-dependencies": z.record(z.string()).optional()
 });
 
 export type SdkCustomConfigSchema = z.infer<typeof SdkCustomConfigSchema>;

generators/csharp/sdk/src/SdkGeneratorContext.ts

@@ -137,6 +137,10 @@ export class SdkGeneratorContext extends AbstractCsharpGeneratorContext<SdkCusto
         return `${endpoint.name.pascalCase.safeName}Async`;
     }
 
+    public getExtraDependencies(): Record<string, string> {
+        return this.customConfig["extra-dependencies"] ?? {};
+    }
+
     private getNamespaceFromFernFilepath(fernFilepath: FernFilepath): string {
         return [this.getNamespace(), ...fernFilepath.packagePath.map((path) => path.pascalCase.safeName)].join(".");
     }