From: Alex Young <alex@...>
Date: 2006-10-12T07:36:48+09:00
Subject: Re: Silent install of a gem and its dependencies

Timothy Goddard wrote:
> 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 problem is that different gems have different platforms appearing as 
their '1' choice - I've got a sneaking suspicion that some have even 
changed priorities between versions, although I'd be happy to be proved 
wrong on that point.  I think it needs to be RExpected, but I haven't 
needed to do it myself.

-- 
Alex
-- 
Alex