fix(cli): create file on disk before adding source in ts-morph project to resolve bun issue

Closes: #536

Author: Romakita

packages/cli/src/services/ProjectClient.spec.ts

@@ -0,0 +1,46 @@
+import {CliFs, inject} from "@tsed/cli-core";
+import {CliPlatformTest, FakeCliFs} from "@tsed/cli-testing";
+
+import {ProjectClient} from "./ProjectClient.js";
+
+describe("ProjectClient", () => {
+  beforeEach(() =>
+    CliPlatformTest.bootstrap({
+      project: {
+        rootDir: "./project-name",
+        srcDir: "src"
+      }
+    })
+  );
+  afterEach(() => CliPlatformTest.reset());
+
+  it("should create a ts source file from string content", async () => {
+    const project = new ProjectClient({
+      rootDir: "./project-name"
+    });
+
+    const source = await project.createSource("src/Server.ts", "export class Server {}");
+
+    expect(source?.getBaseName()).toBe("Server.ts");
+    expect(source?.getText()).toContain("export class Server");
+    expect(FakeCliFs.files.get("project-name/src/Server.ts")).toContain("export class Server");
+  });
+
+  it("should create a ts source file from a structure", async () => {
+    const project = new ProjectClient({
+      rootDir: "./project-name"
+    });
+
+    const source = await project.createSource("src/config/config.ts", {
+      statements: ["export const config = {};"]
+    });
+
+    expect(source?.getBaseName()).toBe("config.ts");
+    expect(source?.getText()).toContain("export const config");
+
+    const fs = inject(CliFs);
+    const content = await fs.readFile("project-name/src/config/config.ts", "utf8");
+
+    expect(content).toContain("export const config");
+  });
+});

packages/cli/src/services/ProjectClient.ts

@@ -72,9 +72,16 @@ export class ProjectClient extends Project {
     path = join(this.rootDir, path);
 
     if (path.endsWith(".ts") || path.endsWith(".mts")) {
-      const source = this.createSourceFile(path, sourceFileText, options);
+      await this.fs.mkdir(dirname(path));
+
+      if (typeof sourceFileText === "string") {
+        await this.fs.writeFile(path, sourceFileText, {encoding: "utf-8"});
 
-      await source.save();
+        return this.getSourceFile(path) || this.addSourceFileAtPath(path);
+      }
+
+      const source = this.createSourceFile(path, sourceFileText, options);
+      await this.fs.writeFile(path, source.getFullText(), {encoding: "utf-8"});
 
       return source;
     }