I'm having trouble getting a rails app on Dreamhost's Passenger to see compiled libraries in my ~/opt/lib directory. I have to put them here because I don't have root access.
I can boot up my app in ./script/console and it sees them libraries just fine because I updated my .bash_profile's LD_LIBRARY_PATH environment variable to include ~/opt/lib.
I've tried putting ENV['LD_LIBRARY_PATH'] = '~/opt/lib' in my environment.rb file but it doesn't seem too help. I get the following error from Passenger when I navigate to my site:
libodbcinst.so.1: cannot open shared object file: No such file or directory - /home/username/opt/lib/odbc.so
Anyone have experience with this?
Thanks
I had similar issue with Passenger that I described in http://blog.rayapps.com/2008/05/21/using-mod_rails-with-rails-applications-on-oracle/
But in your case this migth not work as you will not be able to change Dreamhost's httpd.conf file.
Other thing that you can try is to set LD_LIBRARY_PATH in .bashrc - according to http://www.wavethenavel.com/jonathanpenn/2008/09/08/bootstrapping-a-dreamhost-account-for-rails-and-git/ this has worked in Dreamhost's case. Have not verified that Passenger will execute .bashrc before launching ruby.
Using .bashrc won't work, as the library path that Passenger uses is the one that Apache loads on boot. There is no way it would look at a user's directory as that would be a major security issue.
The environment.rb way sounds like the way to go, though you might want to append to LD_LIBRARY_PATH instead. Also I'd make sure to use the full path to that directory just in case.
Alternatively you might be able to use .htaccess directives, similar to what is described # http://wiki.rubyonrails.org/rails/pages/HowToUseOracleWithFastCGI
This is an old thread, but for completeness this is how to achieve your goal:
Do not set the LD_LIBRARY_PATH if possible - it's horrendous.
As you do not have control over the environment that the Apache
user's environment, attempting to set a LD_LIBRARY_PATH env var per
the methods above will not work anyway.
Set the LDFLAGS environment variable with link and record path flags set prior to compiling the library files to set the correct search paths - e.g.:
export LDFLAGS="-L$HOME/opt/lib -R$HOME/opt/lib"
Once compiled, the files will have the correct links set to the relevant libraries. You can check this using the ldd command line tool - e.g.:
ldd /$HOME/your/custom/complied/library/file.so
Related
I recently installed homebrew-cask and one of the things that I see is that it installs applications by default into the following directories:
Versioned package downloads => /opt/homebrew-cask/Caskroom/
Example : /opt/homebrew-cask/Caskroom/pdftk/2.02
Application binaries/libraries => /opt/
Example : /opt/pdftk/bin/
Instead of using the /opt directory, I would really like to use a directory located in /usr/local which is where my homebrew installation resides.
I can see from the docs that I can set an environment variable for #1, but I can't seem to figure out where to change #2.
I'd like to have the above two settings go to:
/usr/local/Caskroom/packages/pdftk/2.02
/usr/local/Caskroom/pdftk/bin
Any ideas on how I can change both settings or are there good ideas why I wouldn't want to do this?
Thanks.
From the Caskroom manual (specifically the Usage manual) you can change where the actual application will be installed by adding a line like this to your .bash_profile or .zshenv etc.
# Specify your defaults in this environment variable
export HOMEBREW_CASK_OPTS="--appdir=/Applications --caskroom=/usr/local/Caskroom"
I was having some trouble installing the gem libv8. Apparently I need to have python installed. I installed Python and was attempting to update my path with command from another forum:
SET PATH=C:[Ruby Directory]\bin;C:[Python Directory]
or in my case:
SET PATH=C:\Ruby192\bin;C:\Python27
I am not strong with paths and I can't figure out what I did. Now my environment can't find my Ruby directory.
Can someone explain what I did and how I might fix it?
That is most likely because your PATH variable already had a bunch of stuff that you simply throwed away with that line:
echo %PATH%
# a bunch of stuff
SET PATH=C:\Ruby192\bin;C:\Python27
echo %PATH%
# C:\Ruby192\bin;C:\Python27
You can try to append to it instead instead:
set PATH=%PATH%;C:\Ruby192\bin;C:\Python27
echo %PATH%
# a bunch of stuff plus C:\Ruby192\bin;C:\Python27
This change will be avalid for your terminal session only. Closing it and open again should restore the default path. If you need to make it permanent, you need to change your path throught the windows (for example, following this instructions)
I am following the tutorial : http://java.sun.com/developer/onlineTraining/Programming/JDCBook/jniexamp.html
when I reach the part where I am supposed to set the library path :
Unix or Linux:
LD_LIBRARY_PATH=`pwd`
export LD_LIBRARY_PATH
Windows NT/2000/95:
set PATH=%path%;
Neither of these work in cygwin. I keep getting an error when trying to run my program.
Cygwin doesn't use LD_LIBRARY_PATH, it looks for shared libraries in PATH, so try:
export PATH=`pwd`:$PATH
That will add the current directory to the front of the PATH.
Is that
LD_LIBRARY_PATH=$(pwd)
and you just messed up the html, or are you really running:
LD_LIBRARY_PATH=pwd
If the latter, try adding the $() to get the current working directory into the path. Also, you can
echo $LD_LIBRARY_PATH
to ensure it contains what you want. You might consider doing
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$(pwd)
to avoid discarding previous contents of the path.
I am relatively new to dealing with command line issues, compiling programs, and UNIX. Coming from a PHP background, I just fired off MAMP and never worried about this kind of stuff.
I am diving into Rails, and running into some issues. I tried to create a .bash_profile in my home directory to create some shortcuts for myself. I added /usr/local/git/bin to my .profile file, but it seems to have no effect on my PATH variable inside a new terminal window (i.e. it only lasts the session).
The .bash_profile seemed to persist across logins, but once I had that setup, Rails stopped working as expected! I would run rails server in my application's root directory, and Rails would create a new app called 'server' with another directory tree inside my existing app. It does this even with an empty .bash_profile. But I delete the .bash_profile, and everything works like normal.
I am in over my head here - I have very little understanding of how this all works. Any advice on where to look? Or am I missing something obvious?
Post what you added to your .bash_profile. To pre-pend something to your path the syntax is:
export PATH=/usr/local/bin:$PATH
to append you swap the "/usr/local/bin" and $PATH
export PATH=$PATH:/usr/local/bin
After you make changes to your .bash_profile you can make them available in the current terminal session by running source .bash_profile. Then if you run echo $PATH you can see the updated PATH. You should try running rails --version in your different configurations to see if the version is changing. That may account for your odd behavior.
also checkout:
path-helper as extend PATH is sooo 2010
I'm on shared server environment (Dreamhost.com uses Linux/Debian).
I followed their instructions # http://wiki.dreamhost.com/Advanced_PHP_configuration
on setting up a local PHP5 instance on my user account so that I could use APC (php5 accelerator)
A couple of caveats is that I dont have php5 installed on the root directory "/home/php5" as assumed by the instructions/install script
rather I have it in another directory "home/subdir-path/php5", so I had to change the script to address that.
I tried adding this dir to the env $PATH
but when I do phpinfo(), i see that it's not using the local php.ini settings =[
Any thoughts on how to remedy this is greatly appreciated.
==OR==
If someone could show me the right steps to setup a custom php5 instance, with fastcgi, and APC (php cache/accelerator) that'd be just as great.
symlink from the expected location to the location where php.ini really is