RVM + 1.9.3pre == broken readline

Ruby
1

I have not been able to get readline working with the 1.9.3 preview
using
RVM. The results of my most latest attempt follow:

Readline was unable to be required, if you need completion or

history
install readline then reinstall the ruby.
You may follow ‘rvm notes’ for dependencies and/or read the docs
page
https://rvm.beginrescueend.com/packages/readline/ . Be sure you ‘rvm
remove X ; rvm install X’ to re-compile your ruby with readline
support after obtaining the readline libraries.

I did, by the way, try following the instructions at the referenced URI
(replacing “1.9.2” with “ruby-1.9.3-preview1”). No dice. Any
suggestions on how to resolve this problem would be appreciated.

2

On Thu, Sep 15, 2011 at 3:03 PM, Chad P. [email protected] wrote:

I have not been able to get readline working with the 1.9.3 preview using
RVM.

I did, by the way, try following the instructions at the referenced URI
(replacing “1.9.2” with “ruby-1.9.3-preview1”). No dice. Any
suggestions on how to resolve this problem would be appreciated.

$ uname -a
Darwin Mac-mini.local 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun 7
16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 i386

$ rvm get latest
$ rvm reload
$ rvm pkg install readline
(skipping remove since I haven’t installed 1.9.3 at all yet)
$ rvm install 1.9.3-preview1 --with-readline-dir=$rvm_path/usr
$ rvm use 1.9.3-preview1

$ ruby -v -e “p require ‘readline’”
ruby 1.9.3dev (2011-07-31 revision 32789) [x86_64-darwin10.8.0]
true

And it seems to be working in irb. Can you tell us more about your
host?

3

On Fri, Sep 16, 2011 at 10:55:03AM +0900, [email protected] wrote:

16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 i386
Linux hemlock 3.0.0-1-amd64 #1 SMP Sat Aug 27 16:21:11 UTC 2011 x86_64
GNU/Linux

true

And it seems to be working in irb. Can you tell us more about your host?

Just for completeness’ sake, (and because I hope it works this time, for
some reason – or maybe because I’m a glutton for punishment) I’ll do it
all again:

$ rvm get latest

Original installed RVM version:

rvm 1.8.3 by Wayne E. Seguin ([email protected])
[https://rvm.beginrescueend.com/]

You already have the latest version!
$ rvm reload
RVM reloaded!
$ rvm pkg remove readline
(elided output)
$ rvm pkg install readline
(elided output)
$ rvm remove ruby-1.9.3-preview1
(elided output)
$ rvm install 1.9.3-preview1 --with-readline-dir=$rvm_path/usr
(elided output)
$ rvm use 1.9.3-preview1
Using /home/user/.rvm/gems/ruby-1.9.3-preview1
$ ruby -v -e "p require 'readline'"
ruby 1.9.3dev (2011-07-31 revision 32789) [x86_64-linux]
/home/user/.rvm/rubies/ruby-1.9.3-preview1/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in

require': cannot load such file -- readline (LoadError) from /home/user/.rvm/rubies/ruby-1.9.3-preview1/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:inrequire’
from -e:1:in `’

Elided output is here (plus the require ‘readline’ output):

http://pastebin.com/F1VCWEaZ
4

On Fri, Sep 16, 2011 at 1:42 PM, Chad P. [email protected] wrote:

Darwin Mac-mini.local 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun 7
16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 i386

Linux hemlock 3.0.0-1-amd64 #1 SMP Sat Aug 27 16:21:11 UTC 2011 x86_64
GNU/Linux

$ ruby -v -e “p require ‘readline’”
ruby 1.9.3dev (2011-07-31 revision 32789) [x86_64-linux]

/home/user/.rvm/rubies/ruby-1.9.3-preview1/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
`require’: cannot load such file – readline (LoadError)

 from

/home/user/.rvm/rubies/ruby-1.9.3-preview1/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
`require’

 from -e:1:in `<main>'

Thanks; trying again on another host:

[same rvm process]

$ uname -a
Linux linux116.ctc.com 2.6.32-131.6.1.el6.x86_64 #1 SMP Tue Jul 12
17:14:50 CDT 2011 x86_64 x86_64 x86_64 GNU/Linux

$ cat /etc/redhat-release
Scientific Linux release 6.1 (Carbon)

$ ruby -v -e “p require ‘readline’”
ruby 1.9.3dev (2011-07-31 revision 32789) [x86_64-linux]
true

I still don’t know what’s going on then, sorry.

5

On Fri, Sep 23, 2011 at 02:12:57AM +0900, Roger P. wrote:

Chad P. wrote in post #1022208:

I have not been able to get readline working with the 1.9.3 preview
using
RVM. The results of my most latest attempt follow:

Maybe install pure ruby readline?

Please elaborate.

6

Chad P. wrote in post #1022208:

I have not been able to get readline working with the 1.9.3 preview
using
RVM. The results of my most latest attempt follow:

Maybe install pure ruby readline?

7

On Fri, Sep 23, 2011 at 05:00:58AM +0900, [email protected] wrote:

On Thu, Sep 22, 2011 at 2:21 PM, Chad P. [email protected] wrote:

On Fri, Sep 23, 2011 at 02:12:57AM +0900, Roger P. wrote:

Maybe install pure ruby readline?

Please elaborate.

GitHub - ConnorAtherton/rb-readline: Pure-Ruby Readline Implementation

Thanks. I had no idea that existed. “gem install rb-readline” solved
the problem.

I’m still a bit mystified by the fact the standard readline wouldn’t
work, though.

8

On Thu, Sep 22, 2011 at 2:21 PM, Chad P. [email protected] wrote:

On Fri, Sep 23, 2011 at 02:12:57AM +0900, Roger P. wrote:

Chad P. wrote in post #1022208:

I have not been able to get readline working with the 1.9.3 preview
using
RVM. The results of my most latest attempt follow:

Maybe install pure ruby readline?

Please elaborate.