Create an inverseBoolFlag

[skelouse]

What type of PR is this?

This is a new feature for handling IsSet of a BoolFlag by introducing an inverseFlag alongside it.

• feature

What this PR does / why we need it:

I made it here when trying to implement flags where the following commands are valid with a flag --local

$ tau local is not set, thus we prompt the user

$ tau --local local is set as true

$ tau --local=false local is set as false

I decided on an alternative where I take a flag, say local

$ tau --local local is set as true

$ tau --no-local local is set as false

Which issue(s) this PR fixes:

Somewhat Fixes #424

Testing

I simply tested the basic IsSet, value and an error with:

• TestBoolWithInverse
• Basic for testing the basic functionality
• Action for testing the running of the provided BoolFlag's ActionFunc
• EnvVars for testing positive and negative environment variables being set
• WithPrefix for confirming the InversePrefix value is being used as expected
• An example: ExampleNewBoolWithInverse

Release Notes

BoolWithInverseFlag is a new flag struct to handle IsSet of a BoolFlag by introducing an inverseFlag alongside it

TODO

Coverage

Options handling:

• Negative Description
• Negative suffix || prefix
• Negative FilePath
  - Negative Destination && Count
• Negative Usage

There are likely things I did not take into account which represent how a normal flag is expected to function.

[dearchap]

@skelouse Can you add more tests for to exercise new interface ?

[skelouse]

@skelouse Can you add more tests for to exercise new interface ?

Added more tests and removed the interface so that it acts, and can be used as any other flag type.

[dearchap]

@skelouse Also main is the default v3 branch now no need for v3-dev-main

[skelouse]

Good to go. Swapped in place for my original BoolWithInverse interface, and ran e2e tests on current project.