嵌套的角度添加原理图

Question

我有一个具有add schematic的项目Child。如果Child成为具有add schematic的项目父项目的依赖项，ng-cli将如何处理此问题？我没有看到任何对ng add级联或对依赖模式的调用的引用。Parent是否需要复制Child的原理图，或者是否有一种方法可以手动调用父原理图中的Child's schematic？

Answer 1

我真的希望文档更好，但解决方案最终是两件事的组合：

首先，您可以像这样调用外部原理图：

externalSchematic('@keysight/alloy', 'ng-add', options)

然而，单凭这一点是不够的，因为它无法找到您的包。你需要先安装它。这是最终的解决方案：

export function ngAdd(options: any): Rule {
  return (tree: Tree, context: SchematicContext) => {
    console.log('Adding Pathwave Core dependencies...\n');
    dependencies.forEach(dep => addPackageJsonDependency(tree, dep));
    const installTaskId = context.addTask(new NodePackageInstallTask());

    // Chain won't work here since we need the externals to be actually installed before we call their schemas
    // This ensures the externals are a dependency of the node install, so they exist when their schemas run.
    context.addTask(new RunSchematicTask('addExternals', options), [installTaskId]);
  };
}

export function addExternals(options: any): Rule {
  return (_tree: Tree, _context: SchematicContext) => {
    console.log('Running dependency schematics...\n');
    return chain([
      externalSchematic('@keysight/alloy', 'ng-add', options)
    ]);
  };
}

在collection.json中，addExternals必须是自己的逻辑示意图

    "addExternals": {
      "description": "Calls dependency add schemas",
      "private": true,
      "factory": "./ng-add/index#addExternals"
    }