Rails - Dec 2010 - Which RoR to run on Mac OS X for a particular RoR app.

I am extremely new to RoR, I am. I am slowly but surely learning Ruby
and the Rails concepts but the environment is confusing.

I have an application that was written for my company in RoR. It is on a
ubuntu server that is going to be shut down. I want to move the app to
my two Macs (one Leopard and one Snow Leopard). We want to keep the app
to demo a business concept but it can run locally exclusively
(localhost).  So I want to move it to my Macs from the shared Ubuntu
server. I am concerned about Rails and Ruby backwards compatibility; and
if there are any particular sand traps please let me know. Also why does
gem list --local seem to indicate the Macs have multiple versions? Is
this bad? And what should I do to insure I have compatible Mac RoRs for
running the app.

The current Ubuntu is:
gem list --local
*** LOCAL GEMS ***
actionmailer (2.2.2)
actionpack (2.2.2)
activerecord (2.2.2)
activeresource (2.2.2)
activesupport (2.2.2)
builder (2.1.2)
capistrano (2.5.4)
curb (0.3.2)
daemons (1.0.10)
fastthread (1.0.1)
GData (0.0.4)
highline (1.5.0)
hoe (1.9.0)
hpricot (0.6.164)
mysql (2.7)
net-scp (1.0.2)
net-sftp (2.0.2)
net-ssh (2.0.10)
net-ssh-gateway (1.0.1)
parseexcel (0.5.2)
passenger (2.0.6)
rack (0.9.1)
rails (2.2.2)
rak (1.0)
rake (0.8.4, 0.8.3)
rcov (0.8.1.2.0)
roo (1.2.3)
rubyforge (1.0.3)
rubyzip (0.9.1)
uuidtools (1.0.7)
ruby - v
ruby 1.8.7 (2008-08-11 patchlevel 72) [x86_64-linux]
---------------
The Leopard Mac:
gem list --local
*** LOCAL GEMS ***
actionmailer (2.3.8, 2.2.2, 1.3.6)
actionpack (2.3.8, 2.2.2, 1.13.6)
actionwebservice (1.2.6)
activerecord (2.3.8, 2.2.2, 1.15.6)
activeresource (2.3.8, 2.2.2)
activesupport (2.3.8, 2.2.2, 1.4.4)
acts_as_ferret (0.4.1)
capistrano (2.0.0)
cgi_multipart_eof_fix (2.5.0, 2.2)
daemons (1.0.9, 1.0.7)
dnssd (0.6.0)
fastthread (1.0.1, 1.0)
fcgi (0.8.7)
ferret (0.11.4)
gem_plugin (0.2.3, 0.2.2)
highline (1.2.9)
hpricot (0.6)
libxml-ruby (0.9.5, 0.3.8.4)
mongrel (1.1.4, 1.0.1)
needle (1.3.0)
net-sftp (1.1.0)
net-ssh (1.1.2)
rack (1.1.0)
rails (2.3.8, 2.2.2, 1.2.6)
rake (0.8.4, 0.7.3)
RedCloth (3.0.4)
ruby-openid (1.1.4)
ruby-yadis (0.3.4)
rubygems-update (1.3.1)
rubynode (0.1.3)
sqlite3-ruby (1.2.1)
termios (0.9.4)
rails -v
Rails 2.3.8
ruby -v
ruby 1.8.6 (2009-06-08 patchlevel 369) [universal-darwin9.0]

---------------
The Snow Leopard Mac:

gem list --local
*** LOCAL GEMS ***
actionmailer (2.3.8, 2.3.5, 2.2.2, 1.3.6)
actionpack (2.3.8, 2.3.5, 2.2.2, 1.13.6)
actionwebservice (1.2.6)
activerecord (2.3.8, 2.3.5, 2.2.2, 1.15.6)
activeresource (2.3.8, 2.3.5, 2.2.2)
activesupport (2.3.8, 2.3.5, 2.2.2, 1.4.4)
acts_as_ferret (0.4.3)
capistrano (2.5.2)
cgi_multipart_eof_fix (2.5.0)
daemons (1.0.10)
dnssd (0.6.0)
fastthread (1.0.1)
fcgi (0.8.7)
ferret (0.11.6)
gem_plugin (0.2.3)
highline (1.5.0)
hpricot (0.6.164)
libxml-ruby (1.1.2)
mongrel (1.1.5)
needle (1.3.0)
net-scp (1.0.1)
net-sftp (2.0.1, 1.1.1)
net-ssh (2.0.4, 1.1.4)
net-ssh-gateway (1.0.0)
rack (1.1.0, 1.0.1)
rails (2.3.8, 2.3.5, 2.2.2, 1.2.6)
rake (0.8.3)
RedCloth (4.1.1)
ruby-openid (2.1.2)
ruby-yadis (0.3.4)
rubynode (0.1.5)
sqlite3-ruby (1.2.4)
termios (0.9.4)
xmpp4r (0.4)
rails -v
Rails 2.3.8
ruby -v
ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]

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Rob Th wrote in post #966620:
> I am extremely new to RoR, I am. I am slowly but surely learning Ruby
> and the Rails concepts but the environment is confusing.
>
> I have an application that was written for my company in RoR. It is on a
> ubuntu server that is going to be shut down. I want to move the app to
> my two Macs (one Leopard and one Snow Leopard). We want to keep the app
> to demo a business concept but it can run locally exclusively
> (localhost).  So I want to move it to my Macs from the shared Ubuntu
> server. I am concerned about Rails and Ruby backwards compatibility; and
> if there are any particular sand traps please let me know. Also why does
> gem list --local seem to indicate the Macs have multiple versions? Is
> this bad? And what should I do to insure I have compatible Mac RoRs for
> running the app.
Use RVM and setup exactly the same environment that is currently on the 
Ubuntu box and all should be well with the world:

http://rvm.beginrescueend.com/

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Thanks. I found the rvm and installed it. I think...

xxxxiMac:~ uxxx$ rvm gemdir
/Library/Ruby/Gems/1.8

But this is sooo confusing. I do not think this is what I want. I do not
want to switch around from different ruby versions. In fact, the version
I have on my iMac is the same as the one on my Ubuntu server. 1.8.7


I would be happy to just delete the old and newer versions of rails and
just keep the 2.2.2 version.

I don''t think I need the tricked-out rvm.

Can you help me figure out how to remove the other versions of Rails?

R

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Rob Th wrote in post #966660:
> Thanks. I found the rvm and installed it. I think...
>
> xxxxiMac:~ uxxx$ rvm gemdir
> /Library/Ruby/Gems/1.8
>
> But this is sooo confusing. I do not think this is what I want.
But you are probably wrong.
> I do not
> want to switch around from different ruby versions. In fact, the version
> I have on my iMac is the same as the one on my Ubuntu server. 1.8.7
But RVM also lets you switch between different gemsets, which *is* what 
you want.

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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Phew, this is getting even more confusing. Why do I "want to switch 
between gemsets".

I want the version of rail on my Mac to match the Ubuntu which is 2.2.2!

I want the other versions of rails to go bye-bye. How do I do that?

Why would your *think* I want to switch?

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Please quote when replying.

Rob Th wrote in post #966668:
> Phew, this is getting even more confusing. Why do I "want to switch
> between gemsets".
>
So that you can have your Ruby interpreter see only the gems you want it 
to see.
> I want the version of rail on my Mac to match the Ubuntu which is 2.2.2!
>
> I want the other versions of rails to go bye-bye. How do I do that?
By using RVM or Bundler.  Take your pick.  (There are other ways, but 
those tools make life simpler than the other options.)
>
> Why would your *think* I want to switch?
Because that''s exactly what you''re saying you want. 
You''ve said "I want
my Rails application to see these particular gems, and no others". 
That''s basically the definition of a defined gemset.

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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Sorry, I interpreted you remarks as "switch" back and forth. I want to
''blow away'' -  remove - delete all rails except 2.2.2.

Ok, so how do I use rvm to remove the other versions of rails from Macs?

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Please quote when replying!

Rob Th wrote in post #966685:
> Sorry, I interpreted you remarks as "switch" back and forth. I
want to
> ''blow away'' -  remove - delete all rails except 2.2.2.
>
> "RVM also lets you switch between different gemsets" usually
means
> switch between.
Yes.  It''s usually best to have a separate gemset for each Rails 
application.  That way, each application sees only the gems it needs.
> I just want one version.
No, you probably want one version *per application*.
> I still think rvm is confusing.
It''s a lot less confusing that any of the other gem management
solutions
I''m aware of.  Try it!
>
> Ok, so how do I use rvm to remove the other versions of rails from Macs?
You don''t need to.  Just declare a gemset that doesn''t include
the gems
you don''t want.
> Or is there a another way?
Well, you needn''t usually worry too much.  Gems are designed so that 
multiple versions can coexist, and Rails applications pick the version 
they want in the environment.rb file.

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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PLEASE, do not tell me what I want, I WANT to get rid of all versions of 
rails besides 2.2.2.

This is the infuriating thing about RoR. People tell me what I want when 
I tell them what I want and what they want me to want is not want I 
want. jeez.

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For the third time, please quote when replying.

Rob Th wrote in post #966691:
> PLEASE, do not tell me what I want, I WANT to get rid of all versions of
> rails besides 2.2.2.
>
> This is the infuriating thing about RoR. People tell me what I want when
> I tell them what I want and what they want me to want is not want I
> want. jeez.
You yourself said you''re new to Ruby and Rails.  Please try to 
understand the usual Ruby and Rails ways of doing things before you 
decide to do things differently.  That means understanding how to manage 
gems properly, not just deleting things you don''t understand.

You posted here asking for advice.  Don''t ignore the advice
you''re
getting because it isn''t exactly what you wanted to hear.

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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Give me a break.

I asked a question.

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To uninstall a gem version you have 2 options:

a) Declare the version at the end of the uninstall command: gem
uninstall my_gem -v=x.x.x (You replace the ''x.x.x'' with the
version
you want to remove, OR
b) Run the uninstall command without version specified: gem uninstall
my_gem

Option b) will prompt you which version you want to remove out of all
the versions you have loaded but if you only have one version it will
go ahead and remove just that one without asking.

Just a note about the ''what you wants''. I don''t know
if it will be
your case but I''m not a native English speaker and when I first talked
to native speakers it bothered me a lot the ''no, what you want
is...'',
then I realized that it''s just their way of saying ''what you
probably
should do is...'', or I take it that way. It has never bothered me
since I saw it that way.

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Thanks pepe,


RobsMacAir:~ rob$ rails -v
Rails 2.3.8
RobsMacAir:~ rob$ gem uninstall my_gem -v=2.3.8
ERROR:  While executing gem ... (Gem::InstallError)
    Unknown gem my_gem = 2.3.8
RobsMacAir:~ rob$

??

I want to uninstall everything besides 2.2.2

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pepe wrote in post #966708:
[...]
> Just a note about the ''what you wants''. I don''t
know if it will be
> your case but I''m not a native English speaker and when I first
talked
> to native speakers it bothered me a lot the ''no, what you want
is...'',
> then I realized that it''s just their way of saying ''what
you probably
> should do is...'', or I take it that way. It has never bothered me
> since I saw it that way.
Yes, that''s how I meant it.  Sorry for any misunderstanding.

Best,
-- 
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

Sent from my iPhone

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Ok, but do you know how to actually erase the old versions of rails. The 
last suggestion did not work as you can see from my terminal session.

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On 7 December 2010 01:06, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> Thanks pepe,
>
>
> RobsMacAir:~ rob$ rails -v
> Rails 2.3.8
> RobsMacAir:~ rob$ gem uninstall my_gem -v=2.3.8
> ERROR:  While executing gem ... (Gem::InstallError)
>    Unknown gem my_gem = 2.3.8
You have to put the name of the gem you want to uninstall instead of
my_gem.  That was just an example.  Are you sure you are cut out for
this?  In your case you want to uninstall the rails gem, so
gem uninstall rails.
Dependant on which environment you are running in you may have to use
sudo on the front.  Do that if you used sudo to install it.
gem list will show all the gems you have installed by the way.

Colin

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Thanks, Colin. I live in literalville.

I tried as I think you suggested and got this.


Select gem to uninstall:
 1. rails-2.3.8
 2. rails-2.3.8
 3. All versions
> 3
Remove executables:
  rails

in addition to the gem? [Yn]
Removing rails
Successfully uninstalled rails-2.3.8
Remove executables:
  rails

in addition to the gem? [Yn]
Removing rails
Successfully uninstalled rails-2.3.8
RobsiMac:~ rob$ rails -v
-bash: /usr/bin/rails: No such file or directory
RobsiMac:~ rob$ gem list --local

*** LOCAL GEMS ***

actionmailer (2.3.8, 2.3.5, 2.2.2, 1.3.6)
actionpack (2.3.8, 2.3.5, 2.2.2, 1.13.6)
actionwebservice (1.2.6)
activerecord (2.3.8, 2.3.5, 2.2.2, 1.15.6)
activeresource (2.3.8, 2.3.5, 2.2.2)
activesupport (2.3.8, 2.3.5, 2.2.2, 1.4.4)
acts_as_ferret (0.4.3)
capistrano (2.5.2)
cgi_multipart_eof_fix (2.5.0)
daemons (1.0.10)
dnssd (0.6.0)
fastthread (1.0.1)
fcgi (0.8.7)
ferret (0.11.6)
gem_plugin (0.2.3)
highline (1.5.0)
hpricot (0.6.164)
libxml-ruby (1.1.2)
mongrel (1.1.5)
needle (1.3.0)
net-scp (1.0.1)
net-sftp (2.0.1, 1.1.1)
net-ssh (2.0.4, 1.1.4)
net-ssh-gateway (1.0.0)
rack (1.1.0, 1.0.1)
rails (2.3.5, 2.2.2, 1.2.6)
rake (0.8.3)
RedCloth (4.1.1)
ruby-openid (2.1.2)
ruby-yadis (0.3.4)
rubynode (0.1.5)
rvm (1.1.3)
sqlite3-ruby (1.2.4)
termios (0.9.4)
xmpp4r (0.4)
RobsiMac:~ rob$ ruby -v
ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]
RobsiMac:~ rob$ rails -v
-bash: rails: command not found

I expected after deinstalling rails 2.3.8 gem list local would find the 
other rails versions. But did this blow away all rails?

I admit I am in learning mode. I thought this was a place to help out 
beginners. I have been programming in Assembler, C, and tons of SQL and 
now some PHP and writing shell scripts since the late 70s, and the 
complexity and impreciseness of the books and tutorials are amazing RoR,

Is there a way to just go into the file system, and delete all the 
directories for Rails and just do a fresh reinstall. I cannot figure out 
rvm,

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On 7 December 2010 13:25, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> Thanks, Colin. I live in literalville.
>
> I tried as I think you suggested and got this.
>
>
> Select gem to uninstall:
>  1. rails-2.3.8
>  2. rails-2.3.8
>  3. All versions
>> 3
> Remove executables:
>  rails
>
> in addition to the gem? [Yn]
> Removing rails
> Successfully uninstalled rails-2.3.8
> Remove executables:
>  rails
>
> in addition to the gem? [Yn]
> Removing rails
> Successfully uninstalled rails-2.3.8
> RobsiMac:~ rob$ rails -v
> -bash: /usr/bin/rails: No such file or directory
> RobsiMac:~ rob$ gem list --local
>
> *** LOCAL GEMS ***
>
> actionmailer (2.3.8, 2.3.5, 2.2.2, 1.3.6)
> actionpack (2.3.8, 2.3.5, 2.2.2, 1.13.6)
> actionwebservice (1.2.6)
> activerecord (2.3.8, 2.3.5, 2.2.2, 1.15.6)
> activeresource (2.3.8, 2.3.5, 2.2.2)
> activesupport (2.3.8, 2.3.5, 2.2.2, 1.4.4)
> acts_as_ferret (0.4.3)
> capistrano (2.5.2)
> cgi_multipart_eof_fix (2.5.0)
> daemons (1.0.10)
> dnssd (0.6.0)
> fastthread (1.0.1)
> fcgi (0.8.7)
> ferret (0.11.6)
> gem_plugin (0.2.3)
> highline (1.5.0)
> hpricot (0.6.164)
> libxml-ruby (1.1.2)
> mongrel (1.1.5)
> needle (1.3.0)
> net-scp (1.0.1)
> net-sftp (2.0.1, 1.1.1)
> net-ssh (2.0.4, 1.1.4)
> net-ssh-gateway (1.0.0)
> rack (1.1.0, 1.0.1)
> rails (2.3.5, 2.2.2, 1.2.6)
Note the above
> rake (0.8.3)
> RedCloth (4.1.1)
> ruby-openid (2.1.2)
> ruby-yadis (0.3.4)
> rubynode (0.1.5)
> rvm (1.1.3)
> sqlite3-ruby (1.2.4)
> termios (0.9.4)
> xmpp4r (0.4)
> RobsiMac:~ rob$ ruby -v
> ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]
> RobsiMac:~ rob$ rails -v
> -bash: rails: command not found
>
> I expected after deinstalling rails 2.3.8 gem list local would find the
> other rails versions. But did this blow away all rails?
No, 2.3.5, 2.2.2 and 1.2.6 are still installed as noted above
>
> I admit I am in learning mode. I thought this was a place to help out
> beginners. I have been programming in Assembler, C, and tons of SQL and
> now some PHP and writing shell scripts since the late 70s, and the
> complexity and impreciseness of the books and tutorials are amazing RoR,
I can''t say that I agree with you here.  What _is_ confusing is that
there are so many out of date tutorials and mailing list archive
entries that are found when searching for data on rails.  This is
inevitable unfortunately if you want to experiment with fast moving
technologies like Rails.  All the ones you mention have been little
changed for decades so the documentation is stable.
>
> Is there a way to just go into the file system, and delete all the
> directories for Rails and just do a fresh reinstall. I cannot figure out
> rvm,
I don''t understand why you want to that.  What is the problem you are
having?  Having multiple versions of things is not an issue provided
you have the versions you need and they are specified in your app.  It
will then use those versions.

Looking back at the OP I see that you are trying to get an existing
app running.  Why not just concentrate on that and sort out the
problems as you come to them?

Colin

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"No, 2.3.5, 2.2.2 and 1.2.6 are still installed as noted above"

Whoops. Yeah I bought two books on RoR and google like crazy to find 
help and information. The tutorials online assume one is pretty much up 
to speed kind of like a cooking show half way in (what white sauce we 
just made?) The books deal with programming fairly well but not the 
config stuff - especially Mac.

I would just feel 100% more confident going into getting this app 
running if I knew the "environment" was clean and pure. And only one 
version of the software loaded. As you mention this stuff changes a lot. 
For example why is rails -v not working. As you said the command left 
the other versions.

BTW, I do not agree that this is merely a time issue. I programmed on C 
on a PDP when there was exactly one book.  Writing and compiling C is a 
piece of cake compared to RoR.

So I appreciate asking "why", but I would just love a "how".
How do I
blow away all RoR completely and then I think a gem install of version 
2.2.2 would work.

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Rob Th wrote in post #966868:
[...]
> The books deal with programming fairly well but not the
> config stuff - especially Mac.
Then you''re reading the wrong books.   Most Rails developers work on
Mac
OS.
>
> I would just feel 100% more confident going into getting this app
> running if I knew the "environment" was clean and pure. And only
one
> version of the software loaded.
Right.  So create a pristine gemset with RVM for your project and have 
done with it.

[...]
> Why is there such a resistance to blowing away - deleting - RoR? Is it
> that no one actually knows how to do it? Or is there some sort of
> religious thing about deleting old versions of Rails?
Neither.  We do know how to do it, and several of us have told you how. 
But we have also told you that it unnecessary in your particular 
situation -- gems are designed to coexist in multiple versions, and 
anyway RVM can make a pristine environment for you any time you want.

Why is there such a resistance to following the advice of more 
experienced developers?  Really, we *do* know what we''re talking about 
here, and by your own admission, you don''t.  So follow our advice to
get
up to speed with how Rails usually works, then go experiment all you 
like!

Best,
-- 
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

Sent from my iPhone

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> RobsMacAir:~ rob$ gem uninstall my_gem -v=2.3.8
> ERROR:  While executing gem ... (Gem::InstallError)
>    Unknown gem my_gem = 2.3.8
Sorry, I forgot to tell the group to e-mail me updates on the post.
I''m sorry, Colin is right, what I wrote was just an example.
> I expected after deinstalling rails 2.3.8 gem list local would find the
> other rails versions. But did this blow away all rails?
The gem command is being cautious. It doesn''t want to delete anything
but the absolutely necessary. I personally would not want to remove a
gem and find out that the command blew away 10 other gems just because
they are either required by the one I just deleted or compatible with
it. What if I wanted to keep them because they serve me for other
purposes?

Removing gems is a little boring but it shouldn''t take you more than
10 or 15 minutes to remove all the ones you need to remove once you
get the hang of it.
> I admit I am in learning mode. I thought this was a place to help out
> beginners.
Absolutely. I have had great help in this forum from day 1.
>> I have been programming in Assembler, C, and tons of SQL and
>> now some PHP and writing shell scripts since the late 70s, and the
>> complexity and impreciseness of the books and tutorials are amazing
RoR,
> I can''t say that I agree with you here.  What _is_ confusing is
that
>there are so many out of date tutorials and mailing list archive
>entries that are found when searching for data on rails.  This is
>inevitable unfortunately if you want to experiment with fast moving
>technologies like Rails.  All the ones you mention have been little
>changed for decades so the documentation is stable.
+1 with Colin here
> Is there a way to just go into the file system, and delete all the
> directories for Rails and just do a fresh reinstall. I cannot figure out
> rvm,
After reading an entry on the internet I tried just that a week or so
ago as the entry specified that it _might_ be possible. However, after
I blew away all folders in the gem directory and asked for the gem
list all the gems were still there and I had to run the commands
manually anyway to make sure everything was gone as it should. I
didn''t want to have problems during re-installation. You''re
going to
need to uninstall the gems manually and probably selectively I''m
afraid, but if you find a way to do it all at once, please let me (us)
know.

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> -- 
> Marnen Laibow-Koser
> http://www.marnen.org
> marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org
>
> Sent from my iPhone
You are not helpful. Please stop.

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pepe,

"Removing gems is a little boring but it shouldn''t take you more
than
10 or 15 minutes to remove all the ones you need to remove once you
get the hang of it."

How, I tried the
RobsiMac:~ rob$ sudo gem uninstall rails -v 2.3.8

Select gem to uninstall:
 1. rails-2.3.8
 2. rails-2.3.8
 3. All versions
> 3
Remove executables:
  rails

in addition to the gem? [Yn]
Removing rails
Successfully uninstalled rails-2.3.8
Remove executables:
  rails

in addition to the gem? [Yn]
Removing rails
Successfully uninstalled rails-2.3.8
RobsiMac:~ rob$ rails -v
-bash: /usr/bin/rails: No such file or directory

I seem to have messed up somehow. (i.e. I expected after running "sudo 
gem uninstall rails -v 2.3.8" I would get "rails -v" saying the
next
most current version.)

It seems like it uninstalled more than 2.3.8 but on gem list there are 
version still around there. Eww.

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Rob Th wrote in post #966879:
>> -- 
>> Marnen Laibow-Koser
>> http://www.marnen.org
>> marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org
>>
>> Sent from my iPhone
>
> You are not helpful. Please stop.
You know, I had decided I wasn''t going to post further answers here,
but
then it seemed like you actually had started listening to what people 
were telling you.  I guess I was wrong.

Best,
-- 
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

Sent from my iPhone

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Rob Th wrote in post #966881:
> pepe,
>
> "Removing gems is a little boring but it shouldn''t take you
more than
> 10 or 15 minutes to remove all the ones you need to remove once you
> get the hang of it."
>
> How, I tried the
> RobsiMac:~ rob$ sudo gem uninstall rails -v 2.3.8
>
> Select gem to uninstall:
>  1. rails-2.3.8
>  2. rails-2.3.8
>  3. All versions
>> 3
> Remove executables:
>   rails
>
> in addition to the gem? [Yn]
> Removing rails
> Successfully uninstalled rails-2.3.8
> Remove executables:
>   rails
>
> in addition to the gem? [Yn]
> Removing rails
> Successfully uninstalled rails-2.3.8
> RobsiMac:~ rob$ rails -v
> -bash: /usr/bin/rails: No such file or directory
>
> I seem to have messed up somehow. (i.e. I expected after running "sudo
> gem uninstall rails -v 2.3.8" I would get "rails -v" saying
the next
> most current version.)
>
> It seems like it uninstalled more than 2.3.8 but on gem list there are
> version still around there. Eww.
I recently had this happen as well.  If I tell you what I think is going 
on, will you actually pay attention, or will you just give me the 
brush-off again?  If the latter, I''m not going to waste my time writing
an explanation; if the former, I''ll be happy to.  Your choice; just let
me know how you''d like to do things.

Best,
-- 
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

Sent from my iPhone

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Rob Th wrote in post #966852:
> I expected after deinstalling rails 2.3.8 gem list local would find the
> other rails versions. But did this blow away all rails?
>
> I admit I am in learning mode. I thought this was a place to help out
> beginners. I have been programming in Assembler, C, and tons of SQL and
> now some PHP and writing shell scripts since the late 70s, and the
> complexity and impreciseness of the books and tutorials are amazing RoR,
>
> Is there a way to just go into the file system, and delete all the
> directories for Rails and just do a fresh reinstall. I cannot figure out
> rvm,
Hopefully this will help clear things up for you. The installation of 
Ruby on Rails on Mac OS X is a bit different than on other platforms. A 
version of both Ruby and Rails are pre-installed either with the 
operating system or Xcode (not sure which since I always install Xcode 
on all my systems).

Some (usually older) versions of a number of gems are installed in the 
Mac OS X system library (/System/Library/). The gem command (even using 
sudo) cannot be used to uninstall these system gems.

It might be possible to use the root user to delete the framework that 
contains those gems, but I don''t know what you might break in doing so.

With RVM you can effectively "replace" all the pre-installed system
gems
with gemsets that you can fully manage. Installing and learning RVM is 
actually easier than trying to manage the system installed gems 
(including the Rails ones).

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> How, I tried the
> RobsiMac:~ rob$ sudo gem uninstall rails -v 2.3.8
>
> Select gem to uninstall:
>  1. rails-2.3.8
>  2. rails-2.3.8
>  3. All versions> 3
>
> Remove executables:
>   rails
>
> in addition to the gem? [Yn]
> Removing rails
> Successfully uninstalled rails-2.3.8
> Remove executables:
>   rails
>
> in addition to the gem? [Yn]
> Removing rails
> Successfully uninstalled rails-2.3.8
> RobsiMac:~ rob$ rails -v
> -bash: /usr/bin/rails: No such file or directory
>
> I seem to have messed up somehow. (i.e. I expected after running "sudo
> gem uninstall rails -v 2.3.8" I would get "rails -v" saying
the next
> most current version.)
I believe the problem might lie in leaving the ''='' sign out of
the
command:

gem uninstall rails -v=2.3.8 (what I would have typed) vs. gem
uninstall rails -v 2.3.8 (what you actually typed)

I''m not sure, but *maybe* you had 2 different versions of 2.3.8
installed (if that is possible)? I guess it''s possible that when you
answered with option 3 it went out and blanketed out the rails
versions and now you don''t have any of them. :(

If that is the case and since you need rails installed you can install
it by just specifying the version you want:

gem install rails -v=x.x.x (replace the x.x.x with the version you
need). That should install any other dependencies it might need if you
still don''t have them.

If you have problems or more questions I think it might be helpful if
you post the list of gems you have now to give us a better idea about
what mismatches you could have.

There is something you should know I am not sure you are aware of.
Different versions of Ruby and Rails have different dependencies. For
example, a given version of rails might need a minimum (and maybe
maximum) version of activerecord. Just having _any_ version of
activerecord will not do.

In my opinion the best thing you could do if you want to have a
"clean" environment is remove everything you have and install what you
need. The process *shouldn''t* be difficult.

I believe the prior mentions to RVM were meant to indicate to you that
there are ways of keeping separate "environments" if you need them.
For example, you might have an application that runs under Ruby 1.8.6
and Rails 2.3.5 and another one under the latest Ruby and Rails
versions. The activerecord and related gems you need are going to be
different for sure for between both environments. RVM will help you to
keep those 2 environments separate.

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Robert Walker wrote in post #966886:
> Rob Th wrote in post #966852:
>> I expected after deinstalling rails 2.3.8 gem list local would find the
>> other rails versions. But did this blow away all rails?
>>
>> I admit I am in learning mode. I thought this was a place to help out
>> beginners. I have been programming in Assembler, C, and tons of SQL and
>> now some PHP and writing shell scripts since the late 70s, and the
>> complexity and impreciseness of the books and tutorials are amazing
RoR,
>>
>> Is there a way to just go into the file system, and delete all the
>> directories for Rails and just do a fresh reinstall. I cannot figure
out
>> rvm,
>
> Hopefully this will help clear things up for you. The installation of
> Ruby on Rails on Mac OS X is a bit different than on other platforms. A
> version of both Ruby and Rails are pre-installed either with the
> operating system or Xcode (not sure which since I always install Xcode
> on all my systems).
>
> Some (usually older) versions of a number of gems are installed in the
> Mac OS X system library (/System/Library/). The gem command (even using
> sudo) cannot be used to uninstall these system gems.
>
> It might be possible to use the root user to delete the framework that
> contains those gems, but I don''t know what you might break in
doing so.
>
> With RVM you can effectively "replace" all the pre-installed
system gems
> with gemsets that you can fully manage. Installing and learning RVM is
> actually easier than trying to manage the system installed gems
> (including the Rails ones).
I tried rvm and I just don''t get it. Sorry.

I think you are right. I think Xcode installed some of this. Actually I 
do not recall any other install. I was pretty surprised to see all these 
versions. Not sure where they came from. This whole RoR thing makes me 
nervous. I own a bunch of heavy equipment and I have operators and 
mechanics. Most RoR types are users, not mechanics.  I think I am 
leaking hydro and need a wrencher not an operator. :)

I appreciate your help. I did de-intall xcode last night using the 
script from Apple and it did not clean this up either.

Can you explain why after doing a de-install of 2.3.8, ruby -v says no 
ruby? See above.

If I reinstall Mac OS do you think that would make this go away and I 
could do a new install with just ruby 1.8.7 and rails 2.2.2.

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pepe wrote in post #966887:
Pepe, Thanks.
>
> If you have problems or more questions I think it might be helpful if
> you post the list of gems you have now to give us a better idea about
> what mismatches you could have.
RobsiMac:~ rob$ gem list --local

*** LOCAL GEMS ***

actionmailer (2.3.8, 2.3.5, 2.2.2, 1.3.6)
actionpack (2.3.8, 2.3.5, 2.2.2, 1.13.6)
actionwebservice (1.2.6)
activerecord (2.3.8, 2.3.5, 2.2.2, 1.15.6)
activeresource (2.3.8, 2.3.5, 2.2.2)
activesupport (2.3.8, 2.3.5, 2.2.2, 1.4.4)
acts_as_ferret (0.4.3)
capistrano (2.5.2)
cgi_multipart_eof_fix (2.5.0)
daemons (1.0.10)
dnssd (0.6.0)
fastthread (1.0.1)
fcgi (0.8.7)
ferret (0.11.6)
gem_plugin (0.2.3)
highline (1.5.0)
hpricot (0.6.164)
libxml-ruby (1.1.2)
mongrel (1.1.5)
needle (1.3.0)
net-scp (1.0.1)
net-sftp (2.0.1, 1.1.1)
net-ssh (2.0.4, 1.1.4)
net-ssh-gateway (1.0.0)
rack (1.1.0, 1.0.1)
rails (2.3.5, 2.2.2, 1.2.6)
rake (0.8.3)
RedCloth (4.1.1)
ruby-openid (2.1.2)
ruby-yadis (0.3.4)
rubynode (0.1.5)
rvm (1.1.3)
sqlite3-ruby (1.2.4)
termios (0.9.4)
xmpp4r (0.4)
RobsiMac:~ rob$ ruby -v
ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]
RobsiMac:~ rob$ rails -v
-bash: rails: command not found
>
> There is something you should know I am not sure you are aware of.
> Different versions of Ruby and Rails have different dependencies. For
> example, a given version of rails might need a minimum (and maybe
> maximum) version of activerecord. Just having _any_ version of
> activerecord will not do.
Thanks. I am pretty sure this is true. Some people think that is a good 
thing. I am not so sure.
>
> In my opinion the best thing you could do if you want to have a
> "clean" environment is remove everything you have and install
what you
> need.
That is where I got started. But instead people are trying to convince 
me to keep multiple versions, but if this is screwed up why?
>The process *shouldn''t* be difficult.
I wish I could figure out how. Not just what tool to work.
>
> I believe the prior mentions to RVM were meant to indicate to you that
> there are ways of keeping separate "environments" if you need
them.
No kidding.
> For example, you might have an application that runs under Ruby 1.8.6
> and Rails 2.3.5 and another one under the latest Ruby and Rails
> versions. The activerecord and related gems you need are going to be
> different for sure for between both environments. RVM will help you to
> keep those 2 environments separate.
I only need one environment ruby 1.8.7 and rails 2.2.2.

Pepe, thanks again.

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Rob Th wrote in post #966894:
[...]
> I tried rvm and I just don''t get it. Sorry.
What don''t you get?  Perhaps if you were to say what trouble
you''re
having, we could help.  But don''t just give up on it.
>
> I think you are right. I think Xcode installed some of this.
Correct.  Ruby and Rails come with the Mac OS development tools, which 
are installed with Xcode.
> Actually I
> do not recall any other install. I was pretty surprised to see all these
> versions. Not sure where they came from. This whole RoR thing makes me
> nervous.
In what respect?
> I own a bunch of heavy equipment and I have operators and
> mechanics. Most RoR types are users, not mechanics.  I think I am
> leaking hydro and need a wrencher not an operator. :)
And when you get a mechanic, you ignore his advice. :)
>
> I appreciate your help. I did de-intall xcode last night using the
> script from Apple and it did not clean this up either.
Yikes!  Now you have more problems.  You need the Mac OS developer tools 
(in particular a C compiler) to be able to use Ruby effectively.  You 
may have deleted your C compiler by removing Xcode.  What do you get if 
you type
gcc -v
?
>
> Can you explain why after doing a de-install of 2.3.8, ruby -v says no
> ruby? See above.
What deinstallation command did you use?  It wouldn''t surprise me if 
removing Xcode removes Ruby.
>
> If I reinstall Mac OS do you think that would make this go away and I
> could do a new install with just ruby 1.8.7 and rails 2.2.2.
Probably not.  Instead, learn to remove the gems you have, or better 
yet, set up RVM (help is available if you need it) and learn to use it.

If this is beyond you, you''re not ready to work with Rails. 
That''s not
meant as an insult of any sort, merely a statement of fact.

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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On Dec 7, 2010, at 10:25 AM, Rob Th wrote:
> Can you explain why after doing a de-install of 2.3.8, ruby -v says no
> ruby? See above.
Try which ruby in Terminal to see if you don''t in fact have a Ruby  
binary in your path. Then try locate ruby to find one. Correct your  
path as necessary, and try again.
>
> If I reinstall Mac OS do you think that would make this go away and I
> could do a new install with just ruby 1.8.7 and rails 2.2.2.
I think if you re-image this machine (which will leave you with  
Apple''s Ruby 1.8.6), then go to the first chapter of version 3 of the  
Agile book (which does deal with Rails 2, and has a nice install  
section to it) you will be able to install the precise version of  
Rails you desire, by using sudo gem install rails -v 2.2.2. I believe  
Ruby 1.8.7 came well after Rails 2.2, so you would probably be chasing  
errors in Rails if you tried to run it that way.

But to reiterate what others have said over and over here -- RVM is  
designed from its very foundation to support precisely what you state  
you want to do. You have a 2.2.2 application you want to get up and  
running and start working on. We are all trying to reach out to you  
and offer the slender twig of RVM because we also suspect you want to  
do this without hobbling your machine to more modern versions of the  
Rails framework. Once you do get this application up and running,  
you''re probably going to want to develop something else in Rails 3,  
and that requires at minimum 1.8.7 of Ruby.

Walter

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On 7 December 2010 14:32, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> pepe,
>
> "Removing gems is a little boring but it shouldn''t take you
more than
> 10 or 15 minutes to remove all the ones you need to remove once you
> get the hang of it."
>
> How, I tried the
> RobsiMac:~ rob$ sudo gem uninstall rails -v 2.3.8
>
> Select gem to uninstall:
>  1. rails-2.3.8
>  2. rails-2.3.8
>  3. All versions
>> 3
> Remove executables:
>  rails
>
> in addition to the gem? [Yn]
> Removing rails
I think the above may be why rails -v no longer works, I think you
have removed the executable ''rails'' aswell as the gem rails
2.3.8.  I
don''t know how this all works on a mac though
> Successfully uninstalled rails-2.3.8
> Remove executables:
>  rails
>
> in addition to the gem? [Yn]
> Removing rails
> Successfully uninstalled rails-2.3.8
> RobsiMac:~ rob$ rails -v
> -bash: /usr/bin/rails: No such file or directory
>
> I seem to have messed up somehow. (i.e. I expected after running "sudo
> gem uninstall rails -v 2.3.8" I would get "rails -v" saying
the next
> most current version.)
>
> It seems like it uninstalled more than 2.3.8 but on gem list there are
> version still around there. Eww.
>
> --
> Posted via http://www.ruby-forum.com/.
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On 7 December 2010 15:47, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
wrote:
> On 7 December 2010 14:32, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
>> pepe,
>>
>> "Removing gems is a little boring but it shouldn''t take
you more than
>> 10 or 15 minutes to remove all the ones you need to remove once you
>> get the hang of it."
>>
>> How, I tried the
>> RobsiMac:~ rob$ sudo gem uninstall rails -v 2.3.8
>>
>> Select gem to uninstall:
>>  1. rails-2.3.8
>>  2. rails-2.3.8
>>  3. All versions
>>> 3
>> Remove executables:
>>  rails
>>
>> in addition to the gem? [Yn]
>> Removing rails
>
> I think the above may be why rails -v no longer works, I think you
> have removed the executable ''rails'' aswell as the gem
rails 2.3.8.  I
> don''t know how this all works on a mac though
I think I must concur with the others here that you have got things in
rather a mess and the easiest thing would be to use rvm to sort it
out.  If however you have uninstalled the development tools (compilers
and so an as Marmen fears) then you will need to get them back first.

Colin

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Colin Law wrote in post #966901:
> I don''t know how this all works on a mac though
That makes two of us. At least two of us that know what we don''t know.

Installing xcode is not an issue. It is easy.

I pondered that question:
> 1. rails-2.3.8
> 2. rails-2.3.8
> 3. All versions
>> 3
> Remove executables:
> rails
>
> in addition to the gem? [Yn]
> Removing rails
It just not make sense to me that if you are removing a version of 
software you would keep the executable. Right?

I have Agile book and the O''reilly Learning book and can follow those
to
try an install fresh if I can just make sure I am working with a clean 
slate. Seem like as pepe mentioned there are lots of dependencies. I am 
not sure how this Mac or the other one got so many versions of rails on 
it. It just makes me nervous. I never let a mechanic touch my equipment 
unless I understand what he is going to do and most of the time I just 
do it myself.

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Walter Davis wrote in post #966900:
> On Dec 7, 2010, at 10:25 AM, Rob Th wrote:
>
>> Can you explain why after doing a de-install of 2.3.8, ruby -v says no
>> ruby? See above.
>
> Try which ruby in Terminal to see if you don''t in fact have a Ruby
> binary in your path. Then try locate ruby to find one. Correct your
> path as necessary, and try again.
>
>>
>> If I reinstall Mac OS do you think that would make this go away and I
>> could do a new install with just ruby 1.8.7 and rails 2.2.2.
>
> I think if you re-image this machine
What is re-image?
> Once you do get this application up and running,
> you''re probably going to want to develop something else in Rails
3,
> and that requires at minimum 1.8.7 of Ruby.
>
> Walter
Never, this is the one and only rails app ever. I do want to get 1.8.7 
on this machine and rails 2.2.2 to match the source machine.

I would actually like to eventually find a programmer to convert it off 
rails.

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> Never, this is the one and only rails app ever. I do want to get 1.8.7
> on this machine and rails 2.2.2 to match the source machine.
>
> I would actually like to eventually find a programmer to convert it off
> rails.
If you are thinking about getting a programmer anyway maybe it might
be wiser if you get one now to get your RoR environment straight and
your application running as it should. If what you are unhappy about
is the trouble you''re having with it, you not being an expert, but the
application is doing what it is supposed to at your satisfaction when
the setup is correct I think converting the application might be a
mistake. You probably will end up spending a lot more money rewriting
the application than paying somebody to get your application
environment straight. That''s your call, though, of course.

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On Dec 7, 2010, at 11:20 AM, Rob Th wrote:
>> I think if you re-image this machine
>
> What is re-image?
Use the OS install disks to wipe the machine blank and re-install your  
target OS. Given that the Ruby libraries are part of the core OS, not  
just Xcode, this may be your only way forward now that you have nuked  
your Apple Ruby. Or, you could follow one or another of the fine  
Hivelogic install tutorials: google "hivelogic install ruby  
Leopard" (or Snow Leopard, if you''re using 10.6).

Walter

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On 7 December 2010 16:41, Walter Lee Davis
<waltd-HQgmohHLjDZWk0Htik3J/w@public.gmane.org>
wrote:
>
> On Dec 7, 2010, at 11:20 AM, Rob Th wrote:
>
>>> I think if you re-image this machine
>>
>> What is re-image?
>
> Use the OS install disks to wipe the machine blank and re-install your
> target OS. Given that the Ruby libraries are part of the core OS, not just
> Xcode, this may be your only way forward now that you have nuked your Apple
> Ruby. Or, you could follow one or another of the fine Hivelogic install
> tutorials: google "hivelogic install ruby Leopard" (or Snow
Leopard, if
> you''re using 10.6).
I am not sure you have nuked ruby.  You said in an earlier post that
ruby -v failed, but I think you meant rails -v.  If that is true then
rvm should still be an option, provided you have not removed the
development tools (or can get them back).

Colin

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pepe wrote in post #966915:
>> Never, this is the one and only rails app ever. I do want to get 1.8.7
>> on this machine and rails 2.2.2 to match the source machine.
>>
>> I would actually like to eventually find a programmer to convert it off
>> rails.
>
> If you are thinking about getting a programmer anyway maybe it might
> be wiser if you get one now to get your RoR environment straight and
> your application running as it should. If what you are unhappy about
> is the trouble you''re having with it, you not being an expert, but
the
> application is doing what it is supposed to at your satisfaction when
> the setup is correct I think converting the application might be a
> mistake. You probably will end up spending a lot more money rewriting
> the application than paying somebody to get your application
> environment straight. That''s your call, though, of course.
This app is a web front end to a very large piece of other open source 
code that is written in Java. It is very database oriented and more than 
that I cannot say at this time...

It should have been done in java, but it was not my call at that time. I 
want to get the app over to a mac to be able to demo the concept and to 
be a guideline (working prototype) for the eventual conversion. I have 
many, many years of software but I just do not get rails. I see no issue 
with SQL for example. I know rails is a religion to a lot of folks but 
for this app it is just not practical long term.

Horses for courses.

See how complicated this question got. I asked how can I get rid of all 
the other versions and simplify my environment and I got more complexity 
of rvm.

Colin, correct I miss-typed Ruby is still there it is rails that does 
not show up in rails -v but gem list local thinks I still have it.  And 
it looks like de-installing xcode does not remove ruby!

Also, I never heard the term re-image in the context of Mac OS X.

I suppose I am OK with ruby, it is the version I want. Maybe there is a 
directory that has all this rails and I can just delete it? Then 
reinstall. Can I just do a cmd-find rails and delete everything it 
finds?

Also I have been looking for a programmer to convert this but it has not 
been easy and this is not my primary project. I just said, let me grab 
the app off the ubuntu before it goes away and smack here I am.

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Walter Davis wrote in post #966917:
> On Dec 7, 2010, at 11:20 AM, Rob Th wrote:
>
>>> I think if you re-image this machine
>>
>> What is re-image?
>
> Use the OS install disks to wipe the machine blank and re-install your
> target OS.
> Walter
Ouch, this Mac has a lot more than ruby and rails on it. Cannot do that. 
I have a back up of course but what to restore to make sure I get rid of 
all rails, there has to be an easier way. If I know which 
directories/files to not restore to keep from restoring a version of 
rails, I should be able to just delete these directories/files.

I cannot fine documentation as to where on a Mac the rails stuff goes.

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On Tue, Dec 7, 2010 at 11:54 AM, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> I cannot fine documentation as to where on a Mac the rails stuff goes.
It doesn''t matter.  You can leave everything where it is and alter
your environment variables to use another version of ruby/rails
installed where ever you like.

You DO NOT need to re-image the machine just to alter the shell''s
$PATH variable.

export PATH="/path/to/my/ruby:$PATH"

It''s that simple.


-- 
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On 7 December 2010 17:51, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
>
> See how complicated this question got. I asked how can I get rid of all
> the other versions and simplify my environment and I got more complexity
> of rvm.
Correct me if I am wrong but your fundamental problem is that somehow
the rails environment is messed up.  Your proposed solution is to
delete it all and start again.  No-one seems to know how to do this,
though you do know how to remove individual gems (you did it for rails
2.3.8) so you could do this for each of the gems you do not want.  You
still have the problem that somehow
rails -v
does not work so somehow you have lost the rails startup script.

As everyone keeps advising a much better solution is to completely
ignore the current installation and use rvm.  You can then install
just the versions of everything that you want within rvm and run your
app within that environment.  It appears that you tried that and had
some problems, but why not try again and ask for help here if you run
into problems.  It seems to me it is much better than risking the
integrity of your whole machine.

Colin

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On Tue, Dec 7, 2010 at 10:06 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:
> Correct me if I am wrong but your fundamental problem is that somehow
> the rails environment is messed up.  Your proposed solution is to
> delete it all and start again.  No-one seems to know how to do this,
> though you do know how to remove individual gems (you did it for rails
> 2.3.8) so you could do this for each of the gems you do not want.  You
> still have the problem that somehow
> rails -v
> does not work so somehow you have lost the rails startup script.
Uh, "somehow"?? It was deleted when the gem was uninstalled, as a
previous post showed.
-----------------------------
Select gem to uninstall:
 1. rails-2.3.8
 2. rails-2.3.8
 3. All versions
> 3
Remove executables:
 rails

in addition to the gem? [Yn]
Removing rails
Successfully uninstalled rails-2.3.8
-----------------------------

The easiest thing to do would be `sudo gem uninstall rails` to get rid
of *all* the rails versions and then install the one you want.

I would certainly do that before trying to manually remove the gems,
though that''s trivial (use `gem env` to find where they are and
delete).

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Hassan Schroeder wrote in post #966940:
> On Tue, Dec 7, 2010 at 10:06 AM, Colin Law
<clanlaw-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
> wrote:
>
>> Correct me if I am wrong but your fundamental problem is that somehow
>> the rails environment is messed up. Your proposed solution is to
>> delete it all and start again. No-one seems to know how to do this,
>> though you do know how to remove individual gems (you did it for rails
>> 2.3.8) so you could do this for each of the gems you do not want. You
>> still have the problem that somehow
>> rails -v
>> does not work so somehow you have lost the rails startup script.
>
> Uh, "somehow"?? It was deleted when the gem was uninstalled, as a
> previous post showed.
> -----------------------------
> Select gem to uninstall:
>  1. rails-2.3.8
>  2. rails-2.3.8
>  3. All versions
>> 3
> Remove executables:
>  rails
>
> in addition to the gem? [Yn]
> Removing rails
> Successfully uninstalled rails-2.3.8
> -----------------------------
>
> The easiest thing to do would be `sudo gem uninstall rails` to get rid
> of *all* the rails versions and then install the one you want.
>
> I would certainly do that before trying to manually remove the gems,
> though that''s trivial (use `gem env` to find where they are and
delete).
>
> --
> Hassan Schroeder ------------------------
hassan.schroeder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
> twitter: @hassan
I thought uninstalling rails 2.3.8 would uninstall that version then a 
different version would be "current". I paused at that question. I
have
to admit.

BTW...
gem list --local

*** LOCAL GEMS ***

actionmailer (2.3.5, 2.2.2, 1.3.6)
actionpack (2.3.5, 2.2.2, 1.13.6)
actionwebservice (1.2.6)
activerecord (2.3.5, 2.2.2, 1.15.6)
activeresource (2.3.5, 2.2.2)
activesupport (2.3.5, 2.2.2, 1.4.4)
acts_as_ferret (0.4.3)
capistrano (2.5.2)
cgi_multipart_eof_fix (2.5.0)
daemons (1.0.10)
dnssd (0.6.0)
fastthread (1.0.1)
fcgi (0.8.7)
ferret (0.11.6)
gem_plugin (0.2.3)
highline (1.5.0)
hpricot (0.6.164)
libxml-ruby (1.1.2)
mongrel (1.1.5)
needle (1.3.0)
net-scp (1.0.1)
net-sftp (2.0.1, 1.1.1)
net-ssh (2.0.4, 1.1.4)
net-ssh-gateway (1.0.0)
rack (1.0.1)
rails (2.3.5, 2.2.2, 1.2.6)
rake (0.8.3)
RedCloth (4.1.1)
ruby-openid (2.1.2)
ruby-yadis (0.3.4)
rubynode (0.1.5)
rvm (1.1.3)
sqlite3-ruby (1.2.4)
termios (0.9.4)
xmpp4r (0.4)

Looks like several versions of rails are still hanging around!

But...

sudo gem uninstall rails
ERROR:  While executing gem ... (Gem::InstallError)
    cannot uninstall, check `gem list -d rails`


And...
gem list -d rails

*** LOCAL GEMS ***

rails (2.3.5, 2.2.2, 1.2.6)
    Author: David Heinemeier Hansson
    Rubyforge: http://rubyforge.org/projects/rails
    Homepage: http://www.rubyonrails.org
    Installed at (2.3.5): 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8
                 (2.2.2): 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8
                 (1.2.6): 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8

    Web-application framework with template engine, control-flow layer,
    and ORM.

FYI

So it looks like heading over to 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8
and deleting gems/* may do it. In this directory there is an alias to 
/Library/Ruby/Site and one to /Library/Ruby/Gems, which has some 
interesting content.

So, Mr Schroeder, given this:
gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.5
  - RUBY VERSION: 1.8.7 (2009-06-12 patchlevel 174) 
[universal-darwin10.0]
  - INSTALLATION DIRECTORY: /Library/Ruby/Gems/1.8
  - RUBY EXECUTABLE: 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
  - EXECUTABLE DIRECTORY: /usr/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - universal-darwin-10
  - GEM PATHS:
     - /Library/Ruby/Gems/1.8
     - /Users/rob/.gem/ruby/1.8
     - 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - http://gems.rubyforge.org/

What do I drag to the trash? Looks like the stuff in the three GEM 
PATHS?

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On Tue, Dec 7, 2010 at 11:07 AM, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> I thought uninstalling rails 2.3.8 would uninstall that version then a
> different version would be "current".
It would have if you''d answered no :-)
> Looks like several versions of rails are still hanging around!
>
> But...
>
> sudo gem uninstall rails
> ERROR:  While executing gem ... (Gem::InstallError)
>    cannot uninstall, check `gem list -d rails`
mmm, surprising. What happens if you try explicitly uninstalling e.g.
2.3.5 ? It would be preferable to removing directories willy-nilly, IMO.

If that works, uninstall the others also, then re-install 2.2.2.

-- 
Hassan Schroeder ------------------------
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twitter: @hassan

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Hassan Schroeder wrote in post #966954:
> On Tue, Dec 7, 2010 at 11:07 AM, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
>
>> I thought uninstalling rails 2.3.8 would uninstall that version then a
>> different version would be "current".
>
> It would have if you''d answered no :-)
>
>> Looks like several versions of rails are still hanging around!
>>
>> But...
>>
>> sudo gem uninstall rails
>> ERROR: While executing gem ... (Gem::InstallError)
>>  cannot uninstall, check `gem list -d rails`
>
> mmm, surprising. What happens if you try explicitly uninstalling e.g.
> 2.3.5 ? It would be preferable to removing directories willy-nilly, IMO.
>
> If that works, uninstall the others also, then re-install 2.2.2.
>
> --
> Hassan Schroeder ------------------------
hassan.schroeder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
> twitter: @hassan
 gem uninstall rails -v=2.3.5
ERROR:  While executing gem ... (Gem::InstallError)
    cannot uninstall, check `gem list -d rails`

gem list --local

*** LOCAL GEMS ***

actionmailer (2.3.5, 2.2.2, 1.3.6)
actionpack (2.3.5, 2.2.2, 1.13.6)
actionwebservice (1.2.6)
activerecord (2.3.5, 2.2.2, 1.15.6)
activeresource (2.3.5, 2.2.2)
activesupport (2.3.5, 2.2.2, 1.4.4)
acts_as_ferret (0.4.3)
capistrano (2.5.2)
cgi_multipart_eof_fix (2.5.0)
daemons (1.0.10)
dnssd (0.6.0)
fastthread (1.0.1)
fcgi (0.8.7)
ferret (0.11.6)
gem_plugin (0.2.3)
highline (1.5.0)
hpricot (0.6.164)
libxml-ruby (1.1.2)
mongrel (1.1.5)
needle (1.3.0)
net-scp (1.0.1)
net-sftp (2.0.1, 1.1.1)
net-ssh (2.0.4, 1.1.4)
net-ssh-gateway (1.0.0)
rack (1.0.1)
rails (2.3.5, 2.2.2, 1.2.6)
rake (0.8.3)
RedCloth (4.1.1)
ruby-openid (2.1.2)
ruby-yadis (0.3.4)
rubynode (0.1.5)
rvm (1.1.3)
sqlite3-ruby (1.2.4)
termios (0.9.4)
xmpp4r (0.4)

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Even odder.

sudo gem uninstall rails -v 2.3.5
ERROR:  While executing gem ... (Gem::InstallError)
    cannot uninstall, check `gem list -d rails`
RobsiMac:~ rob$ sudo gem install rails -v 2.3.5
Successfully installed rails-2.3.5
1 gem installed
Installing ri documentation for rails-2.3.5...
Installing RDoc documentation for rails-2.3.5...
RobsiMac:~ rob$ sudo gem uninstall rails -v 2.3.5
Successfully uninstalled rails-2.3.5
RobsiMac:~ rob$ rails -v
Rails 2.3.5

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Rob Th wrote in post #966961:
> Even odder.
>
> sudo gem uninstall rails -v 2.3.5
> ERROR:  While executing gem ... (Gem::InstallError)
>     cannot uninstall, check `gem list -d rails`
> RobsiMac:~ rob$ sudo gem install rails -v 2.3.5
> Successfully installed rails-2.3.5
> 1 gem installed
> Installing ri documentation for rails-2.3.5...
> Installing RDoc documentation for rails-2.3.5...
> RobsiMac:~ rob$ sudo gem uninstall rails -v 2.3.5
> Successfully uninstalled rails-2.3.5
> RobsiMac:~ rob$ rails -v
> Rails 2.3.5
Compare the output of "gem env" and "sudo gem env".

Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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On Tue, Dec 7, 2010 at 11:39 AM, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
>
> RobsiMac:~ rob$ sudo gem install rails -v 2.3.5
> Successfully installed rails-2.3.5
> 1 gem installed
> RobsiMac:~ rob$ sudo gem uninstall rails -v 2.3.5
> Successfully uninstalled rails-2.3.5
> RobsiMac:~ rob$ rails -v
> Rails 2.3.5
So what happens now if you `sudo gem uninstall rails` ?

-- 
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twitter: @hassan

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Hassan Schroeder wrote in post #966968:
> On Tue, Dec 7, 2010 at 11:39 AM, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
>>
>> RobsiMac:~ rob$ sudo gem install rails -v 2.3.5
>> Successfully installed rails-2.3.5
>> 1 gem installed
>> RobsiMac:~ rob$ sudo gem uninstall rails -v 2.3.5
>> Successfully uninstalled rails-2.3.5
>> RobsiMac:~ rob$ rails -v
>> Rails 2.3.5
>
> So what happens now if you `sudo gem uninstall rails` ?
>
> --
> Hassan Schroeder ------------------------
hassan.schroeder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
> twitter: @hassan
gem list --local

*** LOCAL GEMS ***

actionmailer (2.3.5, 2.2.2, 1.3.6)
actionpack (2.3.5, 2.2.2, 1.13.6)
actionwebservice (1.2.6)
activerecord (2.3.5, 2.2.2, 1.15.6)
activeresource (2.3.5, 2.2.2)
activesupport (2.3.5, 2.2.2, 1.4.4)
acts_as_ferret (0.4.3)
capistrano (2.5.2)
cgi_multipart_eof_fix (2.5.0)
daemons (1.0.10)
dnssd (0.6.0)
fastthread (1.0.1)
fcgi (0.8.7)
ferret (0.11.6)
gem_plugin (0.2.3)
highline (1.5.0)
hpricot (0.6.164)
libxml-ruby (1.1.2)
mongrel (1.1.5)
needle (1.3.0)
net-scp (1.0.1)
net-sftp (2.0.1, 1.1.1)
net-ssh (2.0.4, 1.1.4)
net-ssh-gateway (1.0.0)
rack (1.0.1)
rails (2.3.5, 2.2.2, 1.2.6)
rake (0.8.3)
RedCloth (4.1.1)
ruby-openid (2.1.2)
ruby-yadis (0.3.4)
rubynode (0.1.5)
rvm (1.1.3)
sqlite3-ruby (1.2.4)
termios (0.9.4)
xmpp4r (0.4)
RobsiMac:~ rob$ sudo gem uninstall rails

Select gem to uninstall:
 1. rails-2.2.2
 2. rails-2.2.2
 3. All versions
>

Ouch.

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On Tue, Dec 7, 2010 at 12:05 PM, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> RobsiMac:~ rob$ sudo gem uninstall rails
>
> Select gem to uninstall:
>  1. rails-2.2.2
>  2. rails-2.2.2
>  3. All versions
> Ouch.
So select 3 and keep going :-)

You can always add back the version you want later.

-- 
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twitter: @hassan

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Hassan Schroeder wrote in post #966986:
> On Tue, Dec 7, 2010 at 12:05 PM, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
>
>> RobsiMac:~ rob$ sudo gem uninstall rails
>>
>> Select gem to uninstall:
>> 1. rails-2.2.2
>> 2. rails-2.2.2
>> 3. All versions
>
>> Ouch.
>
> So select 3 and keep going :-)
>
> You can always add back the version you want later.
>
> --
> Hassan Schroeder ------------------------
hassan.schroeder-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
> twitter: @hassan
sudo gem uninstall rails
Password:

Select gem to uninstall:
 1. rails-2.2.2
 2. rails-2.2.2
 3. All versions
> 3
Remove executables:
  rails

in addition to the gem? [Yn]  y
Removing rails
Successfully uninstalled rails-2.2.2
Remove executables:
  rails

in addition to the gem? [Yn]  y
Removing rails
Successfully uninstalled rails-2.2.2
RobsiMac:~ rob$ rails -v
-bash: /usr/bin/rails: No such file or directory
RobsiMac:~ rob$ sudo gem install rails -v 2.2.2
Successfully installed rails-2.2.2
1 gem installed
Installing ri documentation for rails-2.2.2...
Installing RDoc documentation for rails-2.2.2...
RobsiMac:~ rob$ rails -v
Rails 2.3.5

Oh, no. Night of the Living Dead.

Is there a way to run gem in verbose mode to see what is going on?

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On 7 December 2010 21:23, Rob Th
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> in addition to the gem? [Yn]  y
> Removing rails
> Successfully uninstalled rails-2.2.2
> RobsiMac:~ rob$ rails -v
> -bash: /usr/bin/rails: No such file or directory
> RobsiMac:~ rob$ sudo gem install rails -v 2.2.2
> Successfully installed rails-2.2.2
> 1 gem installed
> Installing ri documentation for rails-2.2.2...
> Installing RDoc documentation for rails-2.2.2...
> RobsiMac:~ rob$ rails -v
> Rails 2.3.5
>
> Oh, no. Night of the Living Dead.
I don''t know why you are so worried about other versions of rails that
may be installed.  If you look at environment.rb for the app you want
to run you will see it requests a particular version of Rails.  Any
other versions installed will be ignored.  They are entirely
independent of each other.  What you see when you type rails -v is
pretty much irrelevant I think.  It is not the version that the app
will use, just the version that will be used if you create a new app
(though even when you create a new app you can specify which version
you want).

Colin

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> Is there a way to run gem in verbose mode to see what is going on?
maybe gem (un)install your_gem_here -V? The flag -V (that''s the
uppercase letter) tells the command to be ''verbose''.

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OK as a famous fictional lawman once said "a man is got to do what a man 
has got to do", or as we do when a hydro-cylindar pin gets stuck on the 
back hoe and we break out the big hammer and torch, I just use the 
wonderful "drag to trash" on all the gem folders I could find,
installed
sudo gem install rails -v 2.2.2 and look here:


gem list --local

*** LOCAL GEMS ***

actionmailer (2.2.2)
actionpack (2.2.2)
activerecord (2.2.2)
activeresource (2.2.2)
activesupport (2.2.2)
rails (2.2.2)
rake (0.8.7)

Did a quick rails hello222 and got the whole mess.

script/server and up we go.

script/server
=> Booting WEBrick...
=> Rails 2.2.2 application started on http://0.0.0.0:3000
=> Ctrl-C to shutdown server; call with --help for options
[2010-12-07 17:10:32] INFO  WEBrick 1.3.1
[2010-12-07 17:10:32] INFO  ruby 1.8.7 (2009-06-12) 
[universal-darwin10.0]
[2010-12-07 17:10:32] INFO  WEBrick::HTTPServer#start: pid=67167 
port=3000
127.0.0.1 - - [07/Dec/2010:17:11:18 EST] "GET / HTTP/1.1" 200 7385
- -> /
127.0.0.1 - - [07/Dec/2010:17:11:18 EST] "GET /javascripts/effects.js 
HTTP/1.1" 200 38675
http://localhost:3000/ -> /javascripts/effects.js
127.0.0.1 - - [07/Dec/2010:17:11:18 EST] "GET /javascripts/prototype.js 
HTTP/1.1" 200 129738
http://localhost:3000/ -> /javascripts/prototype.js
127.0.0.1 - - [07/Dec/2010:17:11:18 EST] "GET /images/rails.png 
HTTP/1.1" 200 6646
http://localhost:3000/ -> /images/rails.png
127.0.0.1 - - [07/Dec/2010:17:11:18 EST] "GET /favicon.ico HTTP/1.1"
200
0
http://localhost:3000/ -> /favicon.ico
127.0.0.1 - - [07/Dec/2010:17:11:21 EST] "GET /rails/info/properties 
HTTP/1.1" 500 15464
http://localhost:3000/ -> /rails/info/properties


Woohoo. Who said RoR is oblique??

localhost:3000 is responding.

One remaining glitch.

"About your application’s environment:

MissingSourceFile in Rails/infoController#properties

no such file to load -- sqlite3
RAILS_ROOT: /Users/rob/hello222

Is this a missing sqlite gem?

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> One remaining glitch.
>
> "About your application’s environment:
>
> MissingSourceFile in Rails/infoController#properties
>
> no such file to load -- sqlite3
> RAILS_ROOT: /Users/rob/hello222
>
> Is this a missing sqlite gem?
I believe it could be. Try loading the gem and see what happens, you
can always remove it. Is your application using sqlite as a DB?

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Shoot. What the heck is this


sudo gem install sqlite3-ruby -v 1.2.4
Password:
Building native extensions.  This could take a while...
ERROR:  Error installing sqlite3-ruby:
  ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby 
extconf.rb
mkmf.rb can''t find header files for ruby at 
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h


Gem files will remain installed in 
/Library/Ruby/Gems/1.8/gems/sqlite3-ruby-1.2.4 for inspection.
Results logged to 
/Library/Ruby/Gems/1.8/gems/sqlite3-ruby-1.2.4/ext/sqlite3_api/gem_make.out
RobsiMac:~ rob$

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That probably means that you need a C compiler or DevKit so the
install command can build the gem.

On Dec 7, 6:27 pm, Rob Th <li...-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> Shoot. What the heck is this
>
> sudo gem install sqlite3-ruby -v 1.2.4
> Password:
> Building native extensions.  This could take a while...
> ERROR:  Error installing sqlite3-ruby:
>   ERROR: Failed to build gem native extension.
>
> /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
> extconf.rb
> mkmf.rb can''t find header files for ruby at
> /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h
>
> Gem files will remain installed in
> /Library/Ruby/Gems/1.8/gems/sqlite3-ruby-1.2.4 for inspection.
> Results logged to
> /Library/Ruby/Gems/1.8/gems/sqlite3-ruby-1.2.4/ext/sqlite3_api/gem_make.out
> RobsiMac:~ rob$
>
> --
> Posted viahttp://www.ruby-forum.com/.
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