GNU bug report logs - #36594
No hint for missing argument

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Package: guix; Reported by: Julien Lepiller <julien@HIDDEN>; Keywords: easy; dated Thu, 11 Jul 2019 09:50:02 UTC; Maintainer for guix is bug-guix@HIDDEN.

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Date: Thu, 11 Jul 2019 23:45:19 +0200
From: Julien Lepiller <julien@HIDDEN>
To: Ludovic =?UTF-8?B?Q291cnTDqHM=?= <ludo@HIDDEN>
Subject: Re: bug#36594: No hint for missing argument
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Le Thu, 11 Jul 2019 22:40:58 +0200,
Ludovic Court=C3=A8s <ludo@HIDDEN> a =C3=A9crit :

> Julien Lepiller <julien@HIDDEN> skribis:
>=20
> > When you type an option that requires an argument, but don't
> > provide one, you get an error message that says there is a missing
> > argument. There should brobably be a hint on what values are
> > acceptable. For instance, there is no way to know from "guix
> > package -v" or "guix package --help" what values are accepted. In
> > other cases, there is a --list-something option.
> >
> > Maybe -v is the only case where it would be useful to do something,
> > because you could guess its existence and not use a verbosity
> > level. Maybe fixing the help message to say --verbosity=3D[0-5] is
> > enough? =20
>=20
> Currently it says:
>=20
> --8<---------------cut here---------------start------------->8---
> $ guix build --help | grep -e -verbo
>   -v, --verbosity=3DLEVEL  use the given verbosity LEVEL
> --8<---------------cut here---------------end--------------->8---
>=20
> We could add =E2=80=9Can integer between 0 and 2=E2=80=9D, but this was l=
eft
> non-explicit in case we eventually extend it to -7 to +42.
>=20
> Maybe there=E2=80=99s a limit on what we can do to help users?  :-)
>=20
> Ludo=E2=80=99.

If users have no idea what value to use though, they just won't use the
feature...




Information forwarded to bug-guix@HIDDEN:
bug#36594; Package guix. Full text available.
Added tag(s) easy. Request was from Ludovic Courtès <ludo@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: Julien Lepiller <julien@HIDDEN>
Subject: Re: bug#36594: No hint for missing argument
References: <C500F9C2-AEBB-4FE7-A826-A4A75E280031@HIDDEN>
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Julien Lepiller <julien@HIDDEN> skribis:

> When you type an option that requires an argument, but don't provide one,=
 you get an error message that says there is a missing argument. There shou=
ld brobably be a hint on what values are acceptable. For instance, there is=
 no way to know from "guix package -v" or "guix package --help" what values=
 are accepted. In other cases, there is a --list-something option.
>
> Maybe -v is the only case where it would be useful to do something, becau=
se you could guess its existence and not use a verbosity level. Maybe fixin=
g the help message to say --verbosity=3D[0-5] is enough?

Currently it says:

--8<---------------cut here---------------start------------->8---
$ guix build --help | grep -e -verbo
  -v, --verbosity=3DLEVEL  use the given verbosity LEVEL
--8<---------------cut here---------------end--------------->8---

We could add =E2=80=9Can integer between 0 and 2=E2=80=9D, but this was left
non-explicit in case we eventually extend it to -7 to +42.

Maybe there=E2=80=99s a limit on what we can do to help users?  :-)

Ludo=E2=80=99.




Information forwarded to bug-guix@HIDDEN:
bug#36594; Package guix. Full text available.

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Subject: No hint for missing argument
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 Content preview:  When you type an option that requires an argument, but don't
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 There should brobably be a hint on what values are acceptable. [...] 
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 Content preview:  When you type an option that requires an argument, but don't
    provide one, you get an error message that says there is a missing argument.
    There should brobably be a hint on what values are acceptable. [...] 
 
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When you type an option that requires an argument, but don't provide one, y=
ou get an error message that says there is a missing argument=2E There shou=
ld brobably be a hint on what values are acceptable=2E For instance, there =
is no way to know from "guix package -v" or "guix package --help" what valu=
es are accepted=2E In other cases, there is a --list-something option=2E

Maybe -v is the only case where it would be useful to do something, becaus=
e you could guess its existence and not use a verbosity level=2E Maybe fixi=
ng the help message to say --verbosity=3D[0-5] is enough?




Acknowledgement sent to Julien Lepiller <julien@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-guix@HIDDEN. Full text available.
Report forwarded to bug-guix@HIDDEN:
bug#36594; Package guix. Full text available.
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