Enhancement: Handle syntax --[no-]cheese

[fodil-a-mindflow]

Hello,

I hope you're doing well! I just wanted to say that your library is fantastic. While working with it, I discovered that to create flags for both yes and no, I need to declare each one separately.

I was wondering if you might consider an enhancement to the syntax, such as using [no-], to automatically generate both commands with true/false values. 😃

I'd be happy to contribute by submitting a PR for this feature if you're interested.

Have a great day!

[shadowspawn]

Not sure quite what you have in mind. Would you see one option or two in the help?

For some historical background, the original support for a negated option (e.g. --no-cheese) was for a stand-alone option and it did not work as part of a yes/no pair of options.

Support was added in #795 to allow a yes/no pair of options to work nicely together, and extended in in #987 and #1652 for defaults and presets.

Now that we have a solid implementation, I am reluctant to add support for a single-option supporting both yes/no as an alternative way of implementing the same behaviour (#1355) without some compelling need or a lot of up-votes.

If you were thinking of an author shortcut for creating the pair of options with a single call, I think you could implement that with an override to Command.

[shadowspawn]

I noticed git uses this syntax in the synopsis for some of its boolean options, as well as other forms for options with an option-value:

clone
       --[no-]single-branch
push
       --[no-]signed, --signed=(true|false|if-asked)
       --[no-]atomic
       --[no-]force-with-lease, --force-with-lease=<refname>,
       --no-recurse-submodules, --recurse-submodules=check|on-demand|only|no
pull
       --[no-]recurse-submodules[=yes|on-demand|no]
       --log[=<n>], --no-log
branch
       --no-contains [<commit>]
       --no-merged [<commit>]

[shadowspawn]

An answer was provided, and no further activity in a few months. Closing this as resolved.

Feel free to open a new issue if it comes up again, with new information and renewed interest.