The Juggernaut plugin for Ruby on Rails aims to revolutionize your Rails app by letting the server initiate a connection and push data to the client. In other words your app can have a real time connection to the server with the advantage of instant updates. Although the obvious use of this is for chat, the most exciting prospect is collaborative cms and wikis.
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| #!/bin/sh -e
APP_PATH=/home/zooz.com/current
JUGGERNAUT_CONFIG="$APP_PATH/juggernaut.yml"
JUGGERNAUT_PID="$APP_PATH/tmp/pids/juggernaut.pid"
JUGGERNAUT_LOG="$APP_PATH/log/juggernaut.log"
RAILS_ENV=production
case $1 in
start)
echo "Starting Juggernaut ..."
juggernaut -d -c $JUGGERNAUT_CONFIG --pid $JUGGERNAUT_PID --log $JUGGERNAUT_LOG
;;
stop)
echo "Stopping Juggernaut ..."
juggernaut -k * -c $JUGGERNAUT_CONFIG --pid $JUGGERNAUT_PID --log $JUGGERNAUT_LOG
;;
restart)
echo "Juggernaut restart ..."
echo "Stopping Juggernaut ..."
juggernaut -k * -c $JUGGERNAUT_CONFIG --pid $JUGGERNAUT_PID --log $JUGGERNAUT_LOG
echo "Starting Juggernaut ..."
juggernaut -d -c $JUGGERNAUT_CONFIG --pid $JUGGERNAUT_PID --log $JUGGERNAUT_LOG
;;
esac |
you my check for further info on how to create
Marouan OMEZZINE Tips & Tricks, how-to init.d, linux, rails, shell script
Q : What’s the best thing that may happen to a developer ?
A : A Bug 
at the beginning of the day
I ran script/console in a rails project to debug something on console, but I got this LoadError:
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| Loading development environment (Rails 2.1.0)
/usr/local/lib/ruby/1.8/irb/completion.rb:10:in `require’: no such file to load — readline (LoadError)
from /usr/local/lib/ruby/1.8/irb/completion.rb:10
from /usr/local/lib/ruby/1.8/irb/init.rb:252:in `require’
from /usr/local/lib/ruby/1.8/irb/init.rb:252:in `load_modules’
from /usr/local/lib/ruby/1.8/irb/init.rb:250:in `each’
from /usr/local/lib/ruby/1.8/irb/init.rb:250:in `load_modules’
from /usr/local/lib/ruby/1.8/irb/init.rb:21:in `setup’
from /usr/local/lib/ruby/1.8/irb.rb:54:in `start’
from /usr/local/bin/irb:13 |
I figured out that some libraries are missing after installing ruby from sources (I got those troubles after upgrading my ubuntu from 8.10 to 9.04 and then reinstalling ruby from sources to solve a non-compatibility problem of the already installed ruby binary package with ubuntu 9.04) :
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| sudo apt-get install libncurses5-dev
sudo apt-get install libreadline5-dev |
Then move to your ruby source folder, subfolder ext/readline and then configure, build and install stuffs.
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| cd /usr/src/ruby-1.8.6-p368/ext/readline/
ruby extconf.rb
sudo make
sudo make install |
you may get something like this : ( when running ruby extconf.rb)
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| marouan@myownpercept:/usr/src/ruby-1.8.6-p368/ext/readline$ sudo ruby extconf.rb
checking for tgetnum() in -lncurses... yes
checking for readline/readline.h... yes
checking for readline/history.h... yes
checking for readline() in -lreadline... yes
checking for rl_filename_completion_function()... yes
checking for rl_username_completion_function()... yes
checking for rl_completion_matches()... yes
checking for rl_deprep_term_function in stdio.h,readline/readline.h,readline/history.h... yes
checking for rl_completion_append_character in stdio.h,readline/readline.h,readline/history.h... yes
checking for rl_basic_word_break_characters in stdio.h,readline/readline.h,readline/history.h... yes
checking for rl_completer_word_break_characters in stdio.h,readline/readline.h,readline/history.h... yes
checking for rl_basic_quote_characters in stdio.h,readline/readline.h,readline/history.h... yes
checking for rl_completer_quote_characters in stdio.h,readline/readline.h,readline/history.h... yes
checking for rl_filename_quote_characters in stdio.h,readline/readline.h,readline/history.h... yes
checking for rl_attempted_completion_over in stdio.h,readline/readline.h,readline/history.h... yes
checking for rl_library_version in stdio.h,readline/readline.h,readline/history.h... yes
checking for rl_event_hook in stdio.h,readline/readline.h,readline/history.h... yes
checking for rl_cleanup_after_signal()... yes
checking for rl_clear_signals()... yes
checking for rl_vi_editing_mode()... yes
checking for rl_emacs_editing_mode()... yes
checking for replace_history_entry()... yes
checking for remove_history()... yes
creating Makefile |
Marouan OMEZZINE Tips & Tricks, Web development, how-to error, extconf, rails, ruby
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