komb
August 2, 2006, 4:40pm
1
I’m planning on using RMagick to do thumbnails for a Rails project.
Installed RMagick using ‘gem install rmagick’
Here are last few lines…
gcc -fPIC -Wall -g -I. -I/usr/lib/ruby/1.8/i386-linux
make install
post-install.rb: installing documentation…
‘post-setup.rb’ error codes worry me…
Tried using it anyway as installation reported as ‘successful’ anyway.
Rails complained about not finding the methods.
tried testing the “require ‘RMagick’” in irb.
LoadError: no such file to load – RMagick
tried the sample script from the ‘Users Guide’
require ‘RMagick’
cat = ImageList.new(“Cheetah.jpg”)
Results:
Rmagicktest.rb:1:in `require’: no such file to load – RMagick
Checked locations of Rmagick.so and libMagick.so
locate RMagick.so
No 'usr/local/lib/ to worry about…
Any ideas on where to look/ how to fix?
Thanks,
Lance F. Squire
komb
August 2, 2006, 9:27pm
2
Lance S. wrote:
LoadError: no such file to load – RMagick
tried the sample script from the ‘Users Guide’
require ‘RMagick’
cat = ImageList.new(“Cheetah.jpg”)
Results:
Rmagicktest.rb:1:in `require’: no such file to load – RMagick
Checked locations of Rmagick.so and libMagick.so
locate RMagick.so
No 'usr/local/lib/ to worry about…
Any ideas on where to look/ how to fix?
Thanks,
Lance F. Squire
Try to run following line
Also you could read this article - you could find some interesting
http://blog.pomozov.info/posts/adventure-with-rmagick-and-mongrel.html
komb
August 2, 2006, 9:34pm
3
Anatol P. wrote:
Try to run following line
Also you could read this article - you could find some interesting
http://blog.pomozov.info/posts/adventure-with-rmagick-and-mongrel.html
$ ruby -rrubygems -e “require ‘RMagick’; puts Magick::Long_version;”http://rmagick.rubyforge.org [email protected]
Interesting… That seems to work…
Reading website…
komb
August 3, 2006, 12:03am
4
Lance S. wrote:
Anatol P. wrote:
Try to run following line
Also you could read this article - you could find some interesting
http://blog.pomozov.info/posts/adventure-with-rmagick-and-mongrel.html
$ ruby -rrubygems -e “require ‘RMagick’; puts Magick::Long_version;”http://rmagick.rubyforge.org [email protected]
Interesting… That seems to work…
Reading website…
Add explicit
require ‘rubygems’
komb
August 2, 2006, 9:52pm
5
Anatol P. wrote:
Also you could read this article - you could find some interesting
http://blog.pomozov.info/posts/adventure-with-rmagick-and-mongrel.html
Um… This is FC4 no sudo to worry about (there is a root account to
libs ARN’T in ‘usr/local/lib’ they are in ‘usr/lib’ (see top)
Running the irb or ruby tests above produce the same results under root.
Still stumped…
Lance
komb
August 3, 2006, 1:15pm
6
On Thu, 3 Aug 2006, Lance S. wrote:
Anatol P. wrote:
Also you could read this article - you could find some interesting
http://blog.pomozov.info/posts/adventure-with-rmagick-and-mongrel.html
Um… This is FC4 no sudo to worry about (there is a root account to
you should never, never compile as root. fyi.
libs ARN’T in ‘usr/local/lib’ they are in ‘usr/lib’ (see top)
and do you have ld.so configured to look there?
-a
komb
August 3, 2006, 12:59pm
7
Lance S. wrote:
I’m planning on using RMagick to do thumbnails for a Rails project.
Installed RMagick using ‘gem install rmagick’
> locate RMagick.so
> Any ideas on where to look/ how to fix?
>
> Thanks,
>
> Lance F. Squire
>
If you are using a library installed with gems, you will need to
require ‘rubygems’
first. Give that a try.
-Justin
komb
August 4, 2006, 4:05pm
8
Justin C. wrote:
If you are using a library installed with gems, you will need to
require ‘rubygems’
first. Give that a try.
-Justin
This dose make the test code from the ‘Users guide’ work.
Though you would think they would have included it…
Lance
komb
August 4, 2006, 4:11pm
9
unknown wrote:
you should never, never compile as root. fyi.
Yes, but I must ‘su’ for the ‘gem install rmagick’ to work properly.
libs ARN’T in ‘usr/local/lib’ they are in ‘usr/lib’ (see top)
and do you have ld.so configured to look there?
Well, as Rails is working properly, and was installed the same way, I
Can’t find relevent ld.so to check…
locate ld.so
/etc/ld.so.cache
Lance
komb
August 4, 2006, 4:24pm
10
I usually use require_gem to get a gem into Rails:
require ‘rubygems’
HTH,
komb
August 4, 2006, 4:06pm
11
Justin C. wrote:
require ‘rubygems’
first. Give that a try.
-Justin
Unfortunatly, no love from rails…
Lance
komb
August 4, 2006, 4:41pm
12
Jeff Everett wrote:
I usually use require_gem to get a gem into Rails:
require ‘rubygems’
HTH,
This at least gives me a new error message.
uninitialized constant RMagick
Previous rails error was:
can’t ‘locate’ a r_magick.rb on my system…
Lance
komb
August 4, 2006, 4:30pm
13
On Fri, 4 Aug 2006, Lance S. wrote:
unknown wrote:
you should never, never compile as root. fyi.
Yes, but I must ‘su’ for the ‘gem install rmagick’ to work properly.
that means you are compiling as root. if the installs uses non-standard
libs ARN’T in ‘usr/local/lib’ they are in ‘usr/lib’ (see top)
and do you have ld.so configured to look there?
Well, as Rails is working properly, and was installed the same way, I
rails doesn’t require a properly configured ld.so since it uses now
/usr/share/doc/man-pages-ja-20060115/translation_lists/ld.so.translation_list
to check - find the ‘*.so’ created by the ‘gem instann rmagick’ command,
ldd RMagick.so
for instance
jib:~ > ldd
-a
komb
August 4, 2006, 5:18pm
14
On Fri, 4 Aug 2006, Lance S. wrote:
Sorry for longish posts…
no prob.
it looks RMagick compiled ok - otherwise you wouldn’t have an so…
what do these commands do for you
harp:~ > ruby -r rubygems -e’ require “RMagick”; p Magick ’
if that doesn’t work try
harp:~ > LD_LIBRARY_PATH=/usr/lib ruby -r rubygems -e’ require
??
-a
komb
August 4, 2006, 5:18pm
15
On Fri, 4 Aug 2006, Lance S. wrote:
This at least gives me a new error message.
uninitialized constant RMagick
ah.
that is your problem
it’s Magick - not RMagick!
-a
komb
August 4, 2006, 4:56pm
16
unknown wrote:
Yes, but I must ‘su’ for the ‘gem install rmagick’ to work properly.
that means you are compiling as root. if the installs uses non-standard
should I then remove the package and again attempt to install as user?
(Thought I installed rails as user, but could not get rmagick to install
to check - find the ‘*.so’ created by the ‘gem instann rmagick’ command,
found:
]$ locate RMagick.so
do something like
ldd RMagick.so
$ ldd /usr/lib/ruby/gems/1.8/gems/rmagick-1.13.0/lib/RMagick.so
Sorry for longish posts…
Lance
komb
August 4, 2006, 6:48pm
18
On Sat, 5 Aug 2006, Lance S. wrote:
Magick
therefore, you’ve got it installed. if you are having issues with rails
$ ruby -r rubygems -e’ require “RMagick”; p Magick 'Magick
-e:1: warning: parenthesize argument(s) for future versionObject:0xb7f3f970 (NoMethodError)
cut and past error. this is fine
if that doesn’t work try
harp:~ > LD_LIBRARY_PATH=/usr/lib ruby -r rubygems -e’ require
$ LD_LIBRARY_PATH=/usr/lib ruby -r rubygems -e’ require
-e:1:in `require’: wrong number of arguments (0 for 1) (ArgumentError)
that has to be on one line!
anyhow. you have installed RMagick and can use it fine from the command
-a
komb
August 4, 2006, 5:53pm
19
unknown wrote:
that is your problem
it’s Magick - not RMagick!
-a
changing:
to:
strangly produces this message:
undefined method `include’ for #MyBountyController:0xb796d1d4
Lance
komb
August 4, 2006, 7:08pm
20
unknown wrote:
Magick
therefore, you’ve got it installed. if you are having issues with rails
This may or may not have happened when I tried to upgrade the version of
anyhow. you have installed RMagick and can use it fine from the command
Trying to use Rmagick to make thumbnails of images previously stored on
You’ve seen the errors above. here is the code as it stands now:
def make_thumb(location, image, thumb)
require 'rubygems'
require_gem 'rmagick'
include Magick
pic = Magick::Image.read("#{location}#{image}")
imgwidth = pic.columns
imgheight = pic.rows
imgratio = imgwidth.to_f / imgheight.to_f
imgratio > aspectratio ? scaleratio = 64 / imgwidth : scaleratio =
64 / imgheight
white_bg = Magick::Image.new(64, thumb.height)
pic = white_bg.composite(thumb, Magick::CenterGravity,
Magick::OverCompositeOp)
modified from this site:
(bottom 2 examples)
Lance