From: Timothy Goddard <interfecus@...>
Date: 2006-10-12T04:30:18+09:00
Subject: Re: Silent install of a gem and its dependencies

vasudevram wrote:
> Jan Svitok wrote:
> > Hi,
> >
> > I'm wondering whether there is a way to install a gem and its
> > dependecies without rubygems asking anything.
> >
> > I need to deploy on several machines a set of gems. I created special
> > gem for the purpose that depends on all of them. Even though I install
> > the gem event with -y and there is only one available choice, rubygems
> > ask which one I want to install (1. the gem, 2. cancel). Is there a
> > way to get rid of this question?
> >
> > TIA
> > J.
>
> Hi,
>
> [What do you mean by "gem event"?]
>
> Ans 1: Check the gem help for all relevant options (like -q for quiet,
> -s for silent, etc.) if you haven't already.
>
> Ans2: (If Ans 1 doesn't help):
>
> I haven't tried this out (not at my machine right now) but it may work,
> if gem reads standard input for the answer:
>
> Create a file called inp.txt that contains a "1" (withut the quotes)
> followed by a newline.
>
> gem gem_options your_gem_name < inp.txt
>
> Another way, if you're on Linux or *NIX, may be:
>
> yes | gem gem_options your_gem_name

If you change this to:

yes 1 | gem gem_options your_gem_name

it will send in ones instead of 'y's

> The yes command writes (in an infinite loop), a "y" followed by a
> newline, to standard output.
> And if gem reads its standard input for the answer, this may work.
>
> Best way is to try it out.
>
> HTH
> Vasudev
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Vasudev Ram
> Software training and consulting
> 10.times say "Truly rural"
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~