Add the ability to skip dependencies with ng update

[pavankjadda]

🚀 Feature request

Command (mark with an x)

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Description

At present when I do ng update --all, the command fails when it finds incompatible dependencies(Attached image). I force update all dependencies and revert back incompatible dependencies through a shell script

Describe the solution you'd like

Provide the ability to skip dependencies through flag like below

ng update --all --skip "zone.js"

Describe alternatives you've considered

I have a script that force updates the all dependencies and reverts incompatible dependencies

### Update all dependencies
ng update --all --force

### Install compatible zone.js version
npm i [email protected] --save

[alan-agius4]

Also related to #15296

[pavankjadda]

@alan-agius4 Does this mean we have to use npm update command from now on? When will this change be pushed to CLI npm package?

[alan-agius4]

@pavankjadda, yes. For packages which do not explicitly support ng update. You should update packages which support ng update prior to running the package manager update command.

This will be available in v11.0.0-next.4.

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