Add postupgrade hook after yarn upgrade is run

[matty-liu]

Bug Description

Sorry if I am not following procedure, was looking at this issue
#2878
and saw a note that if the issue still exists to create a new ticket.

After running yarn upgrade, my postinstall script is not run.

Command

yarn upgrade

What is the current behavior?

yarn upgrade runs without trigger the postinstall script after it runs

Steps to Reproduce

Add the below script into package.json

{
  "scripts": {
    "postinstall": "echo post install script ran"
  }
}

Execute yarn upgrade.

Either behavior of having the postinstall script run after yarn upgrade or if a postupgrade hook was added that I could use to run my script would be desirable.

Environment
Node Version: 14.6.0
Yarn v1 Version: v1.22.4
OS and version: MacOS Catalina 10.15.7

[jlurena]

The same should be applied for yarn remove

[merceyz]

Closing as fixed in v2 where the postinstall script is called whenever the dependency tree of your workspace changes

https://yarnpkg.com/getting-started/migration

[klemenoslaj]

@merceyz could we get the fix to v1 as well?

A lot of repositories are still unable to move to v2 so I wonder if such issues should really be just closed?
In other words, you're alienating a lot of repositories, forcing people to work around yarn v1 issues or alternatively migrate back to npm.