ng add - please specify a project name

首先，在同时包含 mylibrary 和 myapp 的 workspace 中复现 ng add @angular/material myapp 流程，然后跟踪 ng add 命令的入口点。当该命令接受项目名称并为 Angular Material 配置 myapp，而不只是安装 package 时，即表示完成。

Versions

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    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
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Angular CLI: 6.0.5
Node: 10.1.0
OS: darwin x64
Angular: 6.0.3
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

Package                            Version
------------------------------------------------------------
@angular-devkit/architect          0.6.5
@angular-devkit/build-angular      0.6.5
@angular-devkit/build-ng-packagr   0.6.5
@angular-devkit/build-optimizer    0.6.5
@angular-devkit/core               0.6.5
@angular-devkit/schematics         0.6.5
@angular/cli                       6.0.5
@angular/material                  6.1.0
@ngtools/json-schema               1.1.0
@ngtools/webpack                   6.0.5
@schematics/angular                0.6.5
@schematics/update                 0.6.5
ng-packagr                         3.0.0-rc.5
rxjs                               6.2.0
typescript                         2.7.2
webpack                            4.8.3

Repro steps

• Step 1
  starting a new project with ng new angular-project
• Step 2
  generate a library/application inside the new angular-cli project

  ng g library mylibrary
  ng g application myapp
  

• Step 3
  Add @angular/material

  ng add @angular/material myapp
  Installing packages for tooling via npm.
  Multiple projects are defined; please specify a project name
  

Observed behavior

@angular/material gets correclty installed in the node dependencies but the myapp project is not configured for using the library.

Desired behavior

The current ng add usage is: usage: ng add <collection>
Ideally this should allow passing the target app like this:

usage: ng add <collection> [options]
options:
  --project
      The name of the project.