Gem dependency (Hpricot)

Han Holl

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Nov 22, 2006, 7:38:13 AM11/22/06

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Hi,

This is from Hpricot's install page:

If you'd prefer not to use RubyGems, you can also acquire a plain Ruby
distribution: http://code.whytheluckystiff.net/dist/hpricot-0.4.tgz

However, if you download, and try to build with rake, you get:
bever:/usr/src/ruby/hpricot-0.4> rake
(in /home/source/src/ruby/hpricot-0.4)
rake aborted!
no such file to load -- rubygems
/home/source/src/ruby/hpricot-0.4/Rakefile:3:in `require'
(See full trace by running task with --trace)

So not preferring to use gems doesn't really buy you much.

Han Holl

PS I'm sending this to this list because Hpricot is not alone in this.
Dependencies on gem are not good. Of course I'll give in, install gem,
and subsequent dependencies will go unnoticed here, until I try to run
something on a different computer.

Ross Bamford

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Nov 22, 2006, 8:12:05 AM11/22/06

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I think that most projects whose Rakefile depends on Gems do so because
they need Gem::Specification for the Rake GemPackageTask. Generally I tend
to leave out an explicit require and do something like:

require 'rubygems' rescue nil

# .... later:

if ! defined?(Gem)
warn "Package Target requires RubyGEMs"
else
spec = Gem::Specification.new do |s|
...
end
end

--
Ross Bamford - ro...@roscopeco.remove.co.uk

Ross Bamford

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Nov 22, 2006, 8:15:57 AM11/22/06

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On Wed, 22 Nov 2006 13:12:05 -0000, Ross Bamford
<ro...@roscopeco.remove.co.uk> wrote:

> I think that most projects whose Rakefile depends on Gems do so because
> they need Gem::Specification for the Rake GemPackageTask. Generally I
> tend to leave out an explicit require and do something like:
>

Oops, I meant explicit dependency (in gems) rather than explicit require.

_why

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Nov 22, 2006, 12:28:05 PM11/22/06

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On Wed, Nov 22, 2006 at 09:38:13PM +0900, Han Holl wrote:
> If you'd prefer not to use RubyGems, you can also acquire a plain Ruby
> distribution: http://code.whytheluckystiff.net/dist/hpricot-0.4.tgz
>
> However, if you download, and try to build with rake, you get:
> bever:/usr/src/ruby/hpricot-0.4> rake
> (in /home/source/src/ruby/hpricot-0.4)
> rake aborted!
> no such file to load -- rubygems
> /home/source/src/ruby/hpricot-0.4/Rakefile:3:in `require'
> (See full trace by running task with --trace)
>
> So not preferring to use gems doesn't really buy you much.

Oh, I'm sorry, there should be a setup.rb in there. I've just updated the file
give it a try again. The installation commands is just `ruby setup.rb`.

_why

Han Holl

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Nov 23, 2006, 5:34:14 AM11/23/06

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On 11/22/06, _why <w...@ruby-lang.org> wrote:
> Oh, I'm sorry, there should be a setup.rb in there. I've just updated the file
> give it a try again. The installation commands is just `ruby setup.rb`.
>

Thanks. It doesn't seem to be in SVN though, which is what I use.
It's no big deal, and I'm very enthioustastic about Hpricot.
Before this I experimented with htree, to_rexml and xpath, but this
combo was to slow to be workable.
The README file, by the way, ends rather abrubtly.

Han Holl

(Gmail seems to encourage top-posting, strange)