Respect --ignore-engines flag when creating Angular v12 workspace

[prabh-62]

🐞 Bug report

Command (mark with an x)

• new
• build
• serve
• test
• e2e
• generate
• add
• update
• lint
• extract-i18n
• run
• config
• help
• version
• doc

Is this a regression?

Not applicable

Description

Developers should be able to create angular applications under any node runtime using custom CLI flags

🔬 Minimal Reproduction

❯ npx @angular/cli@12.0.0-next.0 new admin-console --ignore-engines

🔥 Exception or Error

Node.js version v15.8.0 detected.
Odd numbered Node.js versions will not enter LTS status and should not be used for production. For more information, please see https://nodejs.org/en/about/releases/.

🌍 Your Environment

❯ node --version
v15.8.0
❯ yarn --version
1.22.10
❯ npm --version
7.5.0

Anything else relevant?

[clydin]

That message should actually be a warning. A fix will be available in the next version.
However, the CLI cannot be executed under an arbitrary Node.js version. It requires a minimum set of versions to ensure that the necessary APIs are present and that those APIs provide the expected behavior. The Angular CLI would crash, act erratically, and/or generate invalid output otherwise. For v12, the minimums are either Node.js 12.13 or 14.15; both of which are LTS versions.

[prabh-62]

I understand the intent. I am just trying to experiment with Angular v12 on another machine and don't want to go through the hassle of uninstalling/installing node runtimes.
I am not going to run this application in production.

[angular-automatic-lock-bot]

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