Mark flag mutually exclusive and required

[shanduur-auto]

Hi!

I want to ask, if there is an option to mark one of n of the mutually exclusive flags required? This means there must appear exactly one of the n flags, otherwise an error should be printed.

For example:

# this should print contents from file:
$ echo -f ./file.txt
hello world

# this should act as a regular echo:
$ echo -i "hello world"
hello world

# this should print help and info about missing required flags:
$ echo
Error: one of mutually exclusive required flag(s) not set: "f", "i"
Usage:
  echo [flags]

[marckhouzam]

Hi @shanduur-auto. Currently there is no special support from Cobra for what you are asking. You would have to do the verification yourself in your program.

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[marckhouzam]

Fixed by @marevers in #1952