Method postCreateSetup

src/node/runtime/DockerRuntime.ts:463–516

* Post-create setup: provision container OR detect fork and setup credentials. * Runs after mux persists workspace metadata so build logs stream to UI in real-time. * * Handles ALL environment setup: * - Fresh workspace: provisions container (create, sync, checkout, credentials) * - F

(params: WorkspaceInitParams)

   * After this completes, the container is ready for initWorkspace() to run the hook.
   */
  async postCreateSetup(params: WorkspaceInitParams): Promise<void> {
    const {
      projectPath,
      branchName,
      trunkBranch,
      workspacePath,
      initLogger,
      abortSignal,
      env,
      skipInitHook,
    } = params;

    if (!this.containerName) {
      throw new Error("Container not initialized. Call createWorkspace first.");
    }
    const containerName = this.containerName;

    // Check if container already exists (e.g., from successful fork or aborted previous attempt)
    const containerCheck = await this.checkExistingContainer(
      containerName,
      workspacePath,
      branchName
    );
    switch (containerCheck.action) {
      case "skip":
        // Fork path: container already valid, just log and setup credentials
        initLogger.logStep(
          skipInitHook
            ? "Container already running (from fork), skipping init hook..."
            : "Container already running (from fork), running init hook..."
        );
        await this.setupCredentials(containerName, env);
        return;
      case "cleanup":
        initLogger.logStep(containerCheck.reason);
        await runDockerCommand(`docker rm -f ${containerName}`, 10000);
        break;
      case "create":
        break;
    }

    // Provision container (throws on error - caller handles)
    await this.provisionContainer({
      containerName,
      projectPath,
      workspacePath,
      branchName,
      trunkBranch,
      initLogger,
      abortSignal,
      env,
      trusted: params.trusted,
    });
  }

  /**
   * Initialize workspace by running .mux/init hook.