how to update an app when ng cli and angular chang

问题:

How to update an app when ng cli and angular change version like now with ng cli 1.5 and angular 5 ?

My goal is to have an existing project with for instance angular 4 and ng cli 1.4,updated to angular 5 and the one scaffold built by ng cli. (I don't know in this case but also the scaffold have sometime changed so I want the brand new scaffold)

An alternative should be using meld.

I'm looking for a best way/practice because right now I'm following all of these steps.

By now I update if possible the node version with nvm so for instance

• nvm install v9.0.0

• nvm use v9.0.0

• npm install -g @angular/cli

• ng new myproject

• overwrite the src and assets folders

• update package.json

• copy files like .stylelintrc

• delete package-lock.json

• npm install

As you can see a lot of work and also error prone so I'm wondering if there is a smarter way to do the update.

UPDATE

The really problems are the external lib for instance for the OpaqueToken :(

回答1:

UPDATE 23-Oct-2018:

If you are on Angular CLI version 6+ just run ng update then follow the command line instructions. Also checkout this guide Updating your Angular projects

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It is not hard at all to update Angular CLI from 1.4 to 1.5. All you need to do is to use angular-cli-diff

1. choose the cli from and to versions https://github.com/cexbrayat/angular-cli-diff/compare/1.4.0...1.5.0
2. click on File changed tab
3. Apply the changes to your current project.
4. npm install / yarn