Comments (6)
Is https://hackage.haskell.org/package/cmdargs-0.10.20/docs/System-Console-CmdArgs-Implicit.html#v:ignore what you are after?
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Thanks Neil!
Unfortunately that's not quite what I want. I still want this to be a valid parameter to the program, just not displayed in the "help" output.
I've found this stack-overflow question that describes the issue https://stackoverflow.com/questions/33199324/hidden-arguments-with-cmdargs
But the accepted solution seems quite hackish and it dates back to 2015. So, I'm wondering if there's a better way to do the same.
from cmdargs.
Unfortunately nothing better available I'm afraid. I can't think of a better way than that.
from cmdargs.
Thanks! I'll close this ticket; but feel free to re-open it if you want to implement something! It's definitely a nice-to-have. Much appreciated.
from cmdargs.
Let's leave open to add - it's pretty hacky as it stands now...
from cmdargs.
In case this helps anyone else, I found a workaround that sort of works. You first do:
allNames :: [String]
allNames = concatMap flagNames $ modeFlags defaultOptions
where defaultOptions
is the record you construct for arguments. This grabs all the flag names. Then, do a preprocessing step and check all "flag-like" arguments to be in this list before calling cmdArgs
itself. If you find anything outside, you can do a more detailed analysis as needed.
Rather hackish, but it does do the trick for my use case. I'd like to hear if anyone has a better idea that doesn't require mocking with cmdArgs
itself.
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Related Issues (20)
- expandArgsAt doesn't understand ~ HOT 1
- modeHelp eats blank lines HOT 1
- Generate help text if no default mode was specified HOT 2
- Wondering how to make a required argument. HOT 4
- A problem with common flags and multiple typFile resulting in "ITEM" HOT 4
- sudo-like cli: a way to instruct `cmdargs` to not look for flags in the remaining arguments HOT 2
- man and info generation
- Using `&= help` with `&= argPos` throws an error HOT 1
- Comments in args file HOT 5
- Default Lists?
- Running multiple sub-commands HOT 1
- Inconsistency in handling boolean arguments HOT 1
- Way to use multiple modes without partial record field selectors? HOT 2
- Tighter bounds base for old cmdargs HOT 1
- Is it possible to create arguments with only a single dash? HOT 1
- splitArgs: document quoting rules
- How can I customize --numeric-version? HOT 13
- Incorrect handling of subcommands with the same argument HOT 1
- ghc-9.6.1 runtime error HOT 1
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