From: Iain Barnett <iainspeed@...>
Date: 2010-09-03T22:47:03+09:00
Subject: Re: load path


On 3 Sep 2010, at 09:14, Brian Candler wrote:

> Iain Barnett wrote:
>> Is there somewhere I can just add the path hardcoded?
> 
> At the top of your app you could do
> 
> $LOAD_PATH.unshift ENV['GEM_HOME'] unless $LOAD_PATH.include? 
> ENV['GEM_HOME']
> 
> for a nasty workaround.

I shudder less at this

> 
> As for how $LOAD_PATH is built: well, it's in ruby.c (look for incpush 
> and push_include), but the bits you're looking at are probably added by 
> rubygems.

than at the thought of dealing with C :)


On 3 Sep 2010, at 02:38, Ryan Davis wrote:

> 
> 502 % grep -A1 ryand /etc/sudoers
> # Added by ryand:
> Defaults        env_keep += "GEM_PATH GEM_HOME"
> 
> You need to pay attention to where you put that. It HAS to be after the reset_env line or it obviously won't work.

I don't have a reset line, but here's my sudoers.

# sudoers file.
#
# This file MUST be edited with the 'visudo' command as root.
#
# See the sudoers man page for the details on how to write a sudoers file.
#

# Host alias specification

# User alias specification

# Cmnd alias specification

# Defaults specification
Defaults    env_keep += "GEM_PATH GEM_HOME"

# Runas alias specification

# User privilege specification
root	ALL=(ALL) ALL
%admin	ALL=(ALL) ALL
%iainuser ALL=(ALL) ALL

# Uncomment to allow people in group wheel to run all commands
# %wheel	ALL=(ALL)	ALL

# Same thing without a password
# %wheel	ALL=(ALL)	NOPASSWD: ALL

# Samples
# %users  ALL=/sbin/mount /cdrom,/sbin/umount /cdrom
# %users  localhost=/sbin/shutdown -h now


> 
>> Last login: Thu Sep  2 18:34:01 on ttys002
>> 501 % env | grep GEM
>> GEM_PATH=/Library/Ruby/Gems/1.8
>> 502 % sudo bash
>> 501 % env | grep GEM
>> GEM_PATH=/Library/Ruby/Gems/1.8
> 
> 
> btw... are you sure you've exported your env vars?

I used the method Brian Candler suggested in the other mail, but I get the same with the one you've used here:

sudo zsh
env
(blah blah blah...)
GEM_HOME=/Users/iainuser/.gems
GEM_PATH=/Users/iainuser/.gems


sh -c 'echo $GEM_HOME'
/Users/iainuser/.gems

sudo sh -c 'echo $GEM_HOME'
/Users/iainuser/.gems

sudo sh -c 'env'
(blah blah blah...)
GEM_HOME=/Users/iainuser/.gems
HOME=/Users/iainuser
GEM_PATH=/Users/iainuser/.gems


Here's a relevant portion of my zprofile, with recent additions included:

export RUBY_PLATFORM=darwin
export PLATFORM="$RUBY_PLATFORM"
export RUBY_VERSION=1.9
export GEM_HOME="$HOME/.gems"
export RUBYLIB="$GEM_HOME"
export GEM_PATH="$GEM_HOME"
export RUBYOPT=rubygems

> 
>> ...
>> 
>> Is there somewhere I can just add the path hardcoded? I don't really care about configurability, I'm not moving my gems anywhere else soon.
> 
> Fix it correctly or don't fix it at all. Anything else is just a headache delayed.
> 

I agree, but sometimes you just want a headache tablet. Or anything that comes on prescription, I hear that's what all the top celebrities are doing nowadays. Except for Paris Hilton. Not sure if she counts as a top celebrity though. If she'd been caught with several prescriptions I might change my mind about her...

Regards,
Iain