From: Josh Cheek <josh.cheek@...>
Date: 2013-04-05T20:49:31+09:00
Subject: Re: Role of bundler in creating and installing a gem

--047d7b3432fafe569604d99badcd
Content-Type: text/plain; charset=ISO-8859-1

On Fri, Apr 5, 2013 at 6:39 AM, Jon Cairns <lists@ruby-forum.com> wrote:

> Hi fellow rubyists,
>
> I have a question about the role of bundler when creating a gem. I'm
> familiar with bundler and the way that it handles dependencies in a
> rails app, but I've run into a few snags with using it to manage
> dependencies for gems that I've created.
>
> In a gemspec you can use `add_dependency` to include other gems as a
> dependency for your gem. Random example:
>
>   Gem::Specification.new do |gem|
>     #...
>     gem.add_dependency 'json'
>   end
>
> That means that installing my gem will also install json (if it doesn't
> exist).
>
>   $ gem install mygem
>   Successfully installed json-x.x.x
>   Successfully installed mygem-x.x.x
>
> However, creating a gem with `bundle new` seems to want you to specify
> dependencies in the Gemfile. So, if I do that:
>
>
I'm pretty sure `bundle new` isn't a thing. If it is for you, then maybe
you have an older version.

On mine, I would do `bundle gem mygem` and when I cat mygem/Gemfile it says

source 'https://rubygems.org'
# Specify your gem's dependencies in mygem.gemspec
gemspec


The gemspec is what tells it to look in mygem.gemspec for the dependencies
list.

-Josh

--047d7b3432fafe569604d99badcd
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">On Fri, Apr 5, 2013 at 6:39 AM, Jon Cairns <span dir=3D"lt=
r">&lt;<a href=3D"mailto:lists@ruby-forum.com" target=3D"_blank">lists@ruby=
-forum.com</a>&gt;</span> wrote:<br><div class=3D"gmail_extra"><div class=
=3D"gmail_quote">
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;p=
adding-left:1ex">Hi fellow rubyists,<br>
<br>
I have a question about the role of bundler when creating a gem. I&#39;m<br=
>
familiar with bundler and the way that it handles dependencies in a<br>
rails app, but I&#39;ve run into a few snags with using it to manage<br>
dependencies for gems that I&#39;ve created.<br>
<br>
In a gemspec you can use `add_dependency` to include other gems as a<br>
dependency for your gem. Random example:<br>
<br>
=A0 Gem::Specification.new do |gem|<br>
=A0 =A0 #...<br>
=A0 =A0 gem.add_dependency &#39;json&#39;<br>
=A0 end<br>
<br>
That means that installing my gem will also install json (if it doesn&#39;t=
<br>
exist).<br>
<br>
=A0 $ gem install mygem<br>
=A0 Successfully installed json-x.x.x<br>
=A0 Successfully installed mygem-x.x.x<br>
<br>
However, creating a gem with `bundle new` seems to want you to specify<br>
dependencies in the Gemfile. So, if I do that:<br>
<br></blockquote><div><br></div><div style>I&#39;m pretty sure `bundle new`=
 isn&#39;t a thing. If it is for you, then maybe you have an older version.=
</div><div style><br></div><div style>On mine, I would do `bundle gem mygem=
` and when I cat mygem/Gemfile it says</div>
<div style><br></div><div style><div>source &#39;<a href=3D"https://rubygem=
s.org">https://rubygems.org</a>&#39;</div><div># Specify your gem&#39;s dep=
endencies in mygem.gemspec<br></div><div>gemspec</div><div><br></div><div>
<br></div><div style>The gemspec is what tells it to look in mygem.gemspec =
for the dependencies list.</div><div style><br></div><div style>-Josh</div>=
<div style><br></div></div></div></div></div>

--047d7b3432fafe569604d99badcd--