adrianaisemberg/CLAP

Return 1

hickford opened this issue · 7 comments

hickford commented

I like how CLAP applications given a bad command give back a useful message. They ought to fail in the Unix sense, ie. give a non-zero return code

$ git party ; echo  $?
git: 'party' is not a git command. See 'git --help'.
1

Whereas with a CLAP app:

 Verb 'party' was not found
 0
adrianaisemberg commented

Interesting.
I'll design something and implement ASAP.

Thanks!

Adrian Aisemberg
vercue.com http://www.vercue.com
sharpregion.com http://www.sharpregion.com

On Thu, Mar 22, 2012 at 11:51 AM, Matt Hickford <
reply@reply.github.com

wrote:

CLAP applications ought to use return codes to mimic Unix commands. For
comparison

$ git party ; echo $?
git: 'party' is not a git command. See 'git --help'.
1

Whereas with a CLAP app

Verb 'party' was not found
0

$ git status ; echo $?
fatal: Not a git repository (or any of the parent directories): .git
128

Reply to this email directly or view it on GitHub:
#12

hickford commented

Another thought: what happens if my verb method returns an int?

adrianaisemberg commented

Fixed in 3.9.
Returns 1 or 0, according to whether an error occurred or not.

hickford commented

Thanks Adrian

adrianaisemberg commented

All verbs are void by design, however, I'll consider changing it to allow returning values, although it will be a conflict to returning an int according to success/failure.

hickford commented

Void verbs is sensible. If I want to exit with a specific code I will use Environment.Exit

adrianaisemberg commented

Cheers!