Date: Thu, 28 Jan 2010 21:50:40 -0700 From: Aaron Gifford <astounding@gmail.com> To: freebsd-ruby@freebsd.org Subject: Solved: Ruby Gem Require LoadError (8-STABLE, Ruby 1.9.1) Message-ID: <e58000751001282050n4c92c3b5pddfb549af1b75050@mail.gmail.com>
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On Thu, Jan 28, 2010 at 7:25 PM, Aaron Gifford <astounding@gmail.com> wrote:
> I wrote:
>> One more interesting thing:
>>
>> % ruby19 -e 'p Gem.default_dir'
>> "/usr/local/lib/ruby19/gems/1.9"
>>
>> That is NOT right. It should be "/usr/local/lib/ruby/gems/1.9" instead.
>>
>> Where does Gem.default_dir get set, does anyone know?
>>
>> Aaron out.
>
> It looks like gem_prelude.rb sets up the gems include path.
>
> The relevant code section is:
>
> def self.default_dir
> File.join File.dirname(ConfigMap[:sitedir]), 'Gems',
> ConfigMap[:ruby_version]
> elsif RUBY_VERSION > '1.9' then
> File.join(ConfigMap[:libdir], ConfigMap[:ruby_install_name], 'gems',
> ConfigMap[:ruby_version])
> else
> File.join(ConfigMap[:libdir], ruby_engine, 'gems',
> ConfigMap[:ruby_version])
> end
> end
>
> So the Gem.default_dir is being set to:
> File.join(ConfigMap[:libdir], ConfigMap[:ruby_install_name], 'gems',
> ConfigMap[:ruby_version])
>
> (that's the middle "RUBY_VERSION > '1.9'" code chunk)
>
> So ConfigMap[:ruby_install_name] is "ruby19" in this case, and THAT's
> what is screwing this up.
>
>
>
> IDEAS:
>
> Either the FreeBSD Ruby 1.9 port needs to install things in
> "/usr/local/lib/ruby19" instead of "/usr/local/lib/ruby/" so the code
> will work as-is, or else something's gotta change with
> ConfigMap[:ruby_install_name], or else gem_prelude.rb code has to be
> changed...
>
> So... anyone with expertise, where does one go from here?
>
> Aaron out.
It looks like ConfigMap[:ruby_install_name] gets set earlier in the
same gem_prelude.rb code to RbConfig::CONFIG["ruby_install_name"]
which in turn is set in rbconfig.rb which sets it to "ruby19". That
file is autogenerated during the build process by the mkconfig.rb
script which gets passed an "install_name" variable setting I'm
assuming.
That in turn gets set during make. The Makefile shows:
$(RBCONFIG): $(srcdir)/mkconfig.rb config.status $(PREP)
@$(MINIRUBY) $(srcdir)/mkconfig.rb -timestamp=$@ \
-install_name=$(RUBY_INSTALL_NAME) \
-so_name=$(RUBY_SO_NAME) rbconfig.rb
So it's getting set to the RUBY_INSTALL_NAME value 'ruby19'. Of
course Makefile is created from the Makefile.in template by the GNU
Autoconf configure process. The configure.in template shows
RUBY_INSTALL_NAME getting set to:
RUBY_INSTALL_NAME="${ri_prefix}ruby${ri_suffix}"
That explains completely how Gem.default_dir is getting set to
""/usr/local/lib/ruby19/gems/1.9" instead of the actual path
"/usr/local/lib/ruby/gems/1.9"
ONE POSSIBLE FIX is this patch to gem_prelude.rb (in
/usr/ports/lang/ruby19/files/patch-gem_prelude.rb):
========================
--- gem_prelude.rb.orig 2010-01-28 21:22:27.307910440 -0700
+++ gem_prelude.rb 2010-01-28 21:22:43.177946726 -0700
@@ -116,7 +116,7 @@
File.join File.dirname(ConfigMap[:sitedir]), 'Gems',
ConfigMap[:ruby_version]
elsif RUBY_VERSION > '1.9' then
- File.join(ConfigMap[:libdir], ConfigMap[:ruby_install_name], 'gems',
+ File.join(ConfigMap[:libdir], 'ruby', 'gems',
ConfigMap[:ruby_version])
else
File.join(ConfigMap[:libdir], ruby_engine, 'gems',
========================
This works. Building/installing gems under 1.9.1 (with
RUBY_VERSION=1.9.1 in /etc/make.conf) did not break (still works), but
this time, no LoadErrors during require. AT LAST!
user@host:/home/user% irb19
irb(main):001:0> require 'net/ssh'
=> true
irb(main):002:0>
And that makes ruby19 -e 'p Gem.default_dir' output
"/usr/local/lib/ruby/gems/1.9" like it should.
Aaron out.
help
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