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Search found 550 results on 22 pages for 'rubygems'.

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• post-install hook for a particular gem

  - by Henry Flower

  Here is what I've googled: http://www.mail-archive.com/[email protected]/msg02168.html Gem.post_install do |installer| puts "!!! #{installer.spec.full_name} INSTALLED !!!" end But where to put this snipped? If I put it in my Rakefile and/or src_of_myproject/lib/rubygems_plugin.rb file, than build the gem, install it--but the expected string is never printed after the installation. I'm totally confused. How to embed the post-install hook into the gem spec? Update: it's getting more interesting. If I put Gem.post_uninstall hook in src_of_myproject/lib/rubygems_plugin.rb--that hook works. Gem.post_uninstall do |uninstaller| puts "!!! #{uninstaller.spec.full_name} UNINSTALLED !!!" end Hm... And wtf is with Gem.post_install?

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• Plotting Tweets from DB in Ruby, grouping by hour.

  - by plotti

  Hey guys I've got a couple of issues with my code. I was wondering that I am plotting the results very ineffectively, since the grouping by hour takes ages the DB is very simple it contains the tweets, created date and username. It is fed by the twitter gardenhose. Thanks for your help ! require 'rubygems' require 'sequel' require 'gnuplot' DB = Sequel.sqlite("volcano.sqlite") tweets = DB[:tweets] def get_values(keyword,tweets) my_tweets = tweets.filter(:text.like("%#{keyword}%")) r = Hash.new start = my_tweets.first[:created_at] my_tweets.each do |t| hour = ((t[:created_at]-start)/3600).round r[hour] == nil ? r[hour] = 1 : r[hour] += 1 end x = [] y = [] r.sort.each do |e| x << e[0] y << e[1] end [x,y] end keywords = ["iceland", "island", "vulkan", "volcano"] values = {} keywords.each do |k| values[k] = get_values(k,tweets) end Gnuplot.open do |gp| Gnuplot::Plot.new(gp) do |plot| plot.terminal "png" plot.output "volcano.png" plot.data = [] values.each do |k,v| plot.data << Gnuplot::DataSet.new([v[0],v[1]]){ |ds| ds.with = "linespoints" ds.title = k } end end end

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• Capistrano SSH::AuthenticationFailed, not prompting for password

  - by Sparkmasterflex

  I've been using capistrano successfully for a while now and all of a sudden in every project I've lost the ability to deploy. Environment: os X (Mavericks) ruby 1.9.3p194 rvm (locally, not on server) rails 3.2 and up RubyGems 1.8.25 I'm not using rsa_keys or anything I want capistrano to prompt for user and password. Suddenly it has decided not to ask for a password, but does ask for user. Then it rolls back and gives me the following error. [deploy:update_code] exception while rolling back: Capistrano::ConnectionError, connection failed for: sub.example.com (Net::SSH::AuthenticationFailed: Authentication failed for user [email protected]) connection failed for: sub.example.com (Net::SSH::AuthenticationFailed: Authentication failed for user [email protected]) This has occurred on my personal laptop and my iMac at work. It occurs when deploying to two different servers (both linux) I'm completely at a loss here. Any ideas?

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• Finding relative libraries when using symlinks to ruby executables

  - by dgtized

  Imagine you have an executable foo.rb, with libraries bar.rb layed out in the following manner: <root>/bin/foo.rb <root>/lib/bar.rb In the header of foo.rb you place the following require to bring in functionality in bar.rb: require File.dirname(__FILE__)+"../lib/bar.rb" This works fine so long as all calls to foo.rb are direct. If you put as say $HOME/project, and symlink foo.rb into $HOME/usr/bin, then __FILE__ resolves to $HOME/usr/bin/foo.rb, and is thus unable to locate bar.rb in relation to the dirname for foo.rb. I realize that packaging systems such as rubygems fix this by creating a namespace to search for the library, and that it is also possible to adjust the load_path using $: to include $HOME/project/lib, but it seems as if a more simple solution should exist. Has anyone had experience with this problem and found a useful solution or recipe?

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• Using Nokogiri to scrape groupon deal

  - by hyngyn

  I'm following the Nokogiri railscast to write a scraper for Groupon. I keep on getting the following error when I run my rb file. traveldeal_scrape.rb:10: warning: regular expression has ']' without escape: /\[0-9 \.]+/ Flamingo Conference Resort and Spa Deal of the Day | Groupon Napa / Sonoma traveldeal_scrape.rb:9:in `block in <main>': undefined local variable or method `item' for main:Object (NameError) Here is my scrape file. require 'rubygems' require 'nokogiri' require 'open-uri' url = "http://www.groupon.com/deals/ga-flamingo-conferences-resort-spa?c=all&p=0" doc = Nokogiri::HTML(open(url)) puts doc.at_css("title").text doc.css(".deal").each do |deal| title = deal.at_css("#content//a").text price = deal.at_css("#amount").text[/\[0-9\.]+/] puts "#{title} - #{price}" puts deal.at_css(".deal")[:href] end I used the exact same rubular expression as the tutorial. I am also unsure of whether or not my CSS tags are correct. Thanks!

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• How to install mysql gem on Mac os 10.6 ?

  - by Mr_Nizzle

  i just installed MAMP on this iMac and the rubygems but when i run: sudo gem install mysql — –with-mysql-config=/usr/local/mysql/bin/mysql_config gives me Building native extensions. This could take a while... ERROR: Error installing mysql: 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/mysql-2.8.1 for inspection. Results logged to /Library/Ruby/Gems/1.8/gems/mysql-2.8.1/ext/mysql_api/gem_make.out ERROR: could not find gem — locally or in a repository ERROR: could not find gem –with-mysql-config=/usr/local/mysql/bin/mysql_config locally or in a repository how can i install this gem ?

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• Can EventMachine recognize all threads are completed?

  - by philipjkim

  I'm an EM newbie and writing two codes to compare synchronous and asynchronous IO. I'm using Ruby 1.8.7. The example for sync IO is: def pause_then_print(str) sleep 2 puts str end 5.times { |i| pause_then_print(i) } puts "Done" This works as expected, taking 10+ seconds until termination. On the other hand, the example for async IO is: require 'rubygems' require 'eventmachine' def pause_then_print(str) Thread.new do EM.run do sleep 2 puts str end end end EventMachine.run do EM.add_timer(2.5) do puts "Done" EM.stop_event_loop end EM.defer(proc do 5.times { |i| pause_then_print(i) } end) end 5 numbers are shown in 2.x seconds. Now I explicitly wrote code that EM event loop to be stopped after 2.5 seconds. But what I want is that the program terminates right after printing out 5 numbers. For doing that, I think EventMachine should recognize all 5 threads are done, and then stop the event loop. How can I do that? Also, please correct the async IO example if it can be more natural and expressive. Thanks in advance.

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• Getting Started With Sinatra

  - by Liam McLennan

  Sinatra is a Ruby DSL for building web applications. It is distinguished from its peers by its minimalism. Here is hello world in Sinatra: require 'rubygems' require 'sinatra' get '/hi' do "Hello World!" end A haml view is rendered by: def '/' haml :name_of_your_view end Haml is also new to me. It is a ruby-based view engine that uses significant white space to avoid having to close tags. A hello world web page in haml might look like: %html %head %title Hello World %body %div Hello World You see how the structure is communicated using indentation instead of opening and closing tags. It makes views more concise and easier to read. Based on my syntax highlighter for Gherkin I have started to build a sinatra web application that publishes syntax highlighted gherkin feature files. I have found that there is a need to have features online so that customers can access them, and so that they can be linked to project management tools like Jira, Mingle, trac etc. The first thing I want my application to be able to do is display a list of the features that it knows about. This will happen when a user requests the root of the application. Here is my sinatra handler: get '/' do feature_service = Finding::FeatureService.new(Finding::FeatureFileFinder.new, Finding::FeatureReader.new) @features = feature_service.features(settings.feature_path, settings.feature_extensions) haml :index end The handler and the view are in the same scope so the @features variable will be available in the view. This is the same way that rails passes data between actions and views. The view to render the result is: %h2 Features %ul - @features.each do |feature| %li %a{:href => "/feature/#{feature.name}"}= feature.name Clearly this is not a complete web page. I am using a layout to provide the basic html page structure. This view renders an <li> for each feature, with a link to /feature/#{feature.name}. Here is what the page looks like: When the user clicks on one of the links I want to display the contents of that feature file. The required handler is: get '/feature/:feature' do @feature_name = params[:feature] feature_service = Finding::FeatureService.new(Finding::FeatureFileFinder.new, Finding::FeatureReader.new) # TODO replace with feature_service.feature(name) @feature = feature_service.features(settings.feature_path, settings.feature_extensions).find do |feature| feature.name == @feature_name end haml :feature end and the view: %h2= @feature.name %pre{:class => "brush: gherkin"}= @feature.description %div= partial :_back_to_index %script{:type => "text/javascript", :src => "/scripts/shCore.js"} %script{:type => "text/javascript", :src => "/scripts/shBrushGherkin.js"} %script{:type => "text/javascript" } SyntaxHighlighter.all(); Now when I click on the Search link I get a nicely formatted feature file: If you would like see the full source it is available on bitbucket.

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• Fetching e-mails into Redmine via IMAP

  - by Danilo Bargen

  I'm trying to fetch e-mails into Redmine via IMAP. The e-mails I'm generating look like this: FooBar Ltd 123456 http://example.com/Foobar-Ltd-123456.html Project: backend Tracker: Dataerror Beschreibung: This is the description =========================== CLIENT_IP: 192.168.1.215 HTTP_USER_AGENT: mozilla/asdfjköl I try to fetch them into Redmine via this command: rake -f /var/www/projects/redmine/Rakefile redmine:email:receive_imap \ RAILS_ENV="production" host=example.com port=993 ssl=true username=redmine \ password=1234 project=myproject tracker=other \ allow_override=project,tracker,category,priority \ move_on_success=read move_on_failure=failed But the e-mails get moved into the failed folder. I had this setup running some time ago with a different e-mail generator but pretty much the same template, and I can't figure out why it's not working. The permissions seem to be OK too. In order to further debug this issue, I need some logfiles. Are there any logfiles written by this command? Or are there any other suggestions to solve this issue? My environment: danilo@jabba:/var/www/projects/redmine$ RAILS_ENV=production script/about About your application's environment Ruby version 1.8.7 (i486-linux) RubyGems version 1.3.5 Rack version 1.0 Rails version 2.3.5 Active Record version 2.3.5 Active Resource version 2.3.5 Action Mailer version 2.3.5 Active Support version 2.3.5 Application root /var/www/projects/redmine Environment production Database adapter mysql Database schema version 20100819172912

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• Installing sqlite gem fails on AWS Linux instance with sqlite-devel libraries installed

  - by Scott

  Hi, I'm running an instance built off ami-595a0a1c. I am trying to install the sqlite3 (or sqlite) gem and it's failing with the below error: $ sudo gem install sqlite3 Building native extensions. This could take a while... ERROR: Error installing sqlite3: ERROR: Failed to build gem native extension. /usr/bin/ruby extconf.rb checking for sqlite3.h... no sqlite3.h is missing. Try 'port install sqlite3 +universal' or 'yum install sqlite3-devel' and check your shared library search path (the location where your sqlite3 shared library is located). extconf.rb failed * Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. Provided configuration options: --with-opt-dir --without-opt-dir --with-opt-include --without-opt-include=${opt-dir}/include --with-opt-lib --without-opt-lib=${opt-dir}/lib --with-make-prog --without-make-prog --srcdir=. --curdir --ruby=/usr/bin/ruby --with-sqlite3-dir --without-sqlite3-dir --with-sqlite3-include --without-sqlite3-include=${sqlite3-dir}/include --with-sqlite3-lib --without-sqlite3-lib=${sqlite3-dir}/lib Gem files will remain installed in /usr/lib64/ruby/gems/1.8/gems/sqlite3-1.3.3 for inspection. Results logged to /usr/lib64/ruby/gems/1.8/gems/sqlite3-1.3.3/ext/sqlite3/gem_make.out Typically, this just means you need to install the development libraries and everything is cool. However, I have installed the sqlite-devel packages and still no dice. Since this is the Amazon Linux instance, I'd rather not add more repositories than the ones Amazon provides if possible. What can i do to get this thing to compile? Thanks for any insight! From a brand new instance, here's what I've done: $ sudo yum install rubygems ruby-devel $ sudo gem update --system $ sudo gem install rails $ rails new app $ cd app $ rails server Could not find gem 'sqlite3 (= 0)' in any of the gem sources listed in your Gemfile. $ sudo yum install sqlite-devel $ sudo gem install sqlite (or sqlite3 -- same result) See breakage above

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• Upgrading Redmine, activerecord-mysql2-adapter not recognized

  - by David Kaczynski

  For upgrading Redmine from 1.0.1 to 2.1.2, I need to execute the command: rake db:migrate RAILS_ENV=production However, doing so produces the following error: rake aborted! Please install the mysql2 adapter: gem install activerecord-mysql2-adapter (mysql2 is not part of the bundle. Add it to Gemfile.) I have ran gem install activerecord-mysql2-adapter, but I still get the same error when I try to run the rake ... command. How do I get my RoR app to recognize that I have the mysql2 adapter installed already? or Is there something wrong with my activerecord-mysql2-adapter installation? Results of sudo bundle install: Using rake (10.0.0) Using i18n (0.6.1) Using multi_json (1.3.7) Using activesupport (3.2.8) Using builder (3.0.0) Using activemodel (3.2.8) Using erubis (2.7.0) Using journey (1.0.4) Using rack (1.4.1) Using rack-cache (1.2) Using rack-test (0.6.2) Using hike (1.2.1) Using tilt (1.3.3) Using sprockets (2.1.3) Using actionpack (3.2.8) Using mime-types (1.19) Using polyglot (0.3.3) Using treetop (1.4.12) Using mail (2.4.4) Using actionmailer (3.2.8) Using arel (3.0.2) Using tzinfo (0.3.35) Using activerecord (3.2.8) Using activeresource (3.2.8) Using coderay (1.0.8) Using fastercsv (1.5.5) Using rack-ssl (1.3.2) Using json (1.7.5) Using rdoc (3.12) Using thor (0.16.0) Using railties (3.2.8) Using jquery-rails (2.0.3) Using metaclass (0.0.1) Using mocha (0.12.3) Using mysql (2.8.1) Using net-ldap (0.3.1) Using pg (0.14.1) Using ruby-openid (2.1.8) Using rack-openid (1.3.1) Using bundler (1.2.1) Using rails (3.2.8) Using rmagick (2.13.1) Using shoulda (2.11.3) Using sqlite3 (1.3.6) Using yard (0.8.3) [32mYour bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.[0m Results of sudo find / -name "*mysql2*": /var/lib/gems/1.8/doc/mysql2-0.3.11 /var/lib/gems/1.8/doc/activerecord-3.2.9/ri/ActiveRecord/Base/mysql2_connection-c.ri /var/lib/gems/1.8/doc/activerecord-mysql2-adapter-0.0.3 /var/lib/gems/1.8/doc/activerecord-mysql2-adapter-0.0.3/ri/ActiveRecord/Base/em_mysql2_connection-c.ri /var/lib/gems/1.8/doc/activerecord-mysql2-adapter-0.0.3/ri/ActiveRecord/Base/mysql2_connection-c.ri /var/lib/gems/1.8/gems/mysql2-0.3.11 /var/lib/gems/1.8/gems/mysql2-0.3.11/spec/mysql2 /var/lib/gems/1.8/gems/mysql2-0.3.11/mysql2.gemspec /var/lib/gems/1.8/gems/mysql2-0.3.11/lib/mysql2.rb /var/lib/gems/1.8/gems/mysql2-0.3.11/lib/mysql2 /var/lib/gems/1.8/gems/mysql2-0.3.11/lib/mysql2/mysql2.so /var/lib/gems/1.8/gems/mysql2-0.3.11/ext/mysql2 /var/lib/gems/1.8/gems/mysql2-0.3.11/ext/mysql2/mysql2.so /var/lib/gems/1.8/gems/mysql2-0.3.11/ext/mysql2/mysql2_ext.c /var/lib/gems/1.8/gems/mysql2-0.3.11/ext/mysql2/mysql2_ext.h /var/lib/gems/1.8/gems/mysql2-0.3.11/ext/mysql2/mysql2_ext.o /var/lib/gems/1.8/gems/activerecord-3.2.9/lib/active_record/connection_adapters/mysql2_adapter.rb /var/lib/gems/1.8/gems/activerecord-mysql2-adapter-0.0.3 /var/lib/gems/1.8/gems/activerecord-mysql2-adapter-0.0.3/activerecord-mysql2-adapter.gemspec /var/lib/gems/1.8/gems/activerecord-mysql2-adapter-0.0.3/lib/arel/engines/sql/compilers/mysql2_compiler.rb /var/lib/gems/1.8/gems/activerecord-mysql2-adapter-0.0.3/lib/activerecord-mysql2-adapter.rb /var/lib/gems/1.8/gems/activerecord-mysql2-adapter-0.0.3/lib/activerecord-mysql2-adapter /var/lib/gems/1.8/gems/activerecord-mysql2-adapter-0.0.3/lib/active_record/connection_adapters/em_mysql2_adapter.rb /var/lib/gems/1.8/gems/activerecord-mysql2-adapter-0.0.3/lib/active_record/connection_adapters/mysql2_adapter.rb /var/lib/gems/1.8/gems/activerecord-3.2.8/lib/active_record/connection_adapters/mysql2_adapter.rb /var/lib/gems/1.8/cache/mysql2-0.3.11.gem /var/lib/gems/1.8/cache/activerecord-mysql2-adapter-0.0.3.gem /var/lib/gems/1.8/specifications/activerecord-mysql2-adapter-0.0.3.gemspec /var/lib/gems/1.8/specifications/mysql2-0.3.11.gemspec Contents of /usr/share/redmine/Gemfile: source 'http://rubygems.org' gem 'rails', '3.2.8' gem "jquery-rails", "~> 2.0.2" gem "i18n", "~> 0.6.0" gem "coderay", "~> 1.0.6" gem "fastercsv", "~> 1.5.0", :platforms => [:mri_18, :mingw_18, :jruby] gem "builder", "3.0.0" # Optional gem for LDAP authentication group :ldap do gem "net-ldap", "~> 0.3.1" end # Optional gem for OpenID authentication group :openid do gem "ruby-openid", "~> 2.1.4", :require => "openid" gem "rack-openid" end # Optional gem for exporting the gantt to a PNG file, not supported with jruby platforms :mri, :mingw do group :rmagick do # RMagick 2 supports ruby 1.9 # RMagick 1 would be fine for ruby 1.8 but Bundler does not support # different requirements for the same gem on different platforms gem "rmagick", ">= 2.0.0" end end # Database gems platforms :mri, :mingw do group :postgresql do gem "pg", ">= 0.11.0" end group :sqlite do gem "sqlite3" end end platforms :mri_18, :mingw_18 do group :mysql do gem "mysql" end end platforms :mri_19, :mingw_19 do group :mysql do gem "mysql2", "~> 0.3.11" end end platforms :jruby do gem "jruby-openssl" group :mysql do gem "activerecord-jdbcmysql-adapter" end group :postgresql do gem "activerecord-jdbcpostgresql-adapter" end group :sqlite do gem "activerecord-jdbcsqlite3-adapter" end end group :development do gem "rdoc", ">= 2.4.2" gem "yard" end group :test do gem "shoulda", "~> 2.11" # Shoulda does not work nice on Ruby 1.9.3 and seems to need test-unit explicitely. gem "test-unit", :platforms => [:mri_19] gem "mocha", "0.12.3" end local_gemfile = File.join(File.dirname(__FILE__), "Gemfile.local") if File.exists?(local_gemfile) puts "Loading Gemfile.local ..." if $DEBUG # `ruby -d` or `bundle -v` instance_eval File.read(local_gemfile) end # Load plugins' Gemfiles Dir.glob File.expand_path("../plugins/*/Gemfile", __FILE__) do |file| puts "Loading #{file} ..." if $DEBUG # `ruby -d` or `bundle -v` instance_eval File.read(file) end Contents of /usr/share/redmine/Gemfile.lock: GEM remote: http://rubygems.org/ specs: actionmailer (3.2.8) actionpack (= 3.2.8) mail (~> 2.4.4) actionpack (3.2.8) activemodel (= 3.2.8) activesupport (= 3.2.8) builder (~> 3.0.0) erubis (~> 2.7.0) journey (~> 1.0.4) rack (~> 1.4.0) rack-cache (~> 1.2) rack-test (~> 0.6.1) sprockets (~> 2.1.3) activemodel (3.2.8) activesupport (= 3.2.8) builder (~> 3.0.0) activerecord (3.2.8) activemodel (= 3.2.8) activesupport (= 3.2.8) arel (~> 3.0.2) tzinfo (~> 0.3.29) activeresource (3.2.8) activemodel (= 3.2.8) activesupport (= 3.2.8) activesupport (3.2.8) i18n (~> 0.6) multi_json (~> 1.0) arel (3.0.2) builder (3.0.0) coderay (1.0.8) erubis (2.7.0) fastercsv (1.5.5) hike (1.2.1) i18n (0.6.1) journey (1.0.4) jquery-rails (2.0.3) railties (>= 3.1.0, < 5.0) thor (~> 0.14) json (1.7.5) mail (2.4.4) i18n (>= 0.4.0) mime-types (~> 1.16) treetop (~> 1.4.8) metaclass (0.0.1) mime-types (1.19) mocha (0.12.3) metaclass (~> 0.0.1) multi_json (1.3.7) mysql (2.8.1) mysql2 (0.3.11) net-ldap (0.3.1) pg (0.14.1) polyglot (0.3.3) rack (1.4.1) rack-cache (1.2) rack (>= 0.4) rack-openid (1.3.1) rack (>= 1.1.0) ruby-openid (>= 2.1.8) rack-ssl (1.3.2) rack rack-test (0.6.2) rack (>= 1.0) rails (3.2.8) actionmailer (= 3.2.8) actionpack (= 3.2.8) activerecord (= 3.2.8) activeresource (= 3.2.8) activesupport (= 3.2.8) bundler (~> 1.0) railties (= 3.2.8) railties (3.2.8) actionpack (= 3.2.8) activesupport (= 3.2.8) rack-ssl (~> 1.3.2) rake (>= 0.8.7) rdoc (~> 3.4) thor (>= 0.14.6, < 2.0) rake (10.0.0) rdoc (3.12) json (~> 1.4) rmagick (2.13.1) ruby-openid (2.1.8) shoulda (2.11.3) sprockets (2.1.3) hike (~> 1.2) rack (~> 1.0) tilt (~> 1.1, != 1.3.0) sqlite3 (1.3.6) test-unit (2.5.2) thor (0.16.0) tilt (1.3.3) treetop (1.4.12) polyglot polyglot (>= 0.3.1) tzinfo (0.3.35) yard (0.8.3) PLATFORMS ruby DEPENDENCIES activerecord-jdbcmysql-adapter activerecord-jdbcpostgresql-adapter activerecord-jdbcsqlite3-adapter builder (= 3.0.0) coderay (~> 1.0.6) fastercsv (~> 1.5.0) i18n (~> 0.6.0) jquery-rails (~> 2.0.2) jruby-openssl mocha (= 0.12.3) mysql mysql2 (~> 0.3.11) net-ldap (~> 0.3.1) pg (>= 0.11.0) rack-openid rails (= 3.2.8) rdoc (>= 2.4.2) rmagick (>= 2.0.0) ruby-openid (~> 2.1.4) shoulda (~> 2.11) sqlite3 test-unit yard Results of gem list: actionmailer (3.2.9, 3.2.8) actionpack (3.2.9, 3.2.8) activemodel (3.2.9, 3.2.8) activerecord (3.2.9, 3.2.8) activerecord-mysql2-adapter (0.0.3) activeresource (3.2.9, 3.2.8) activesupport (3.2.9, 3.2.8) arel (3.0.2) builder (3.0.0) bundler (1.2.1) coderay (1.0.8) erubis (2.7.0) fastercsv (1.5.5) hike (1.2.1) i18n (0.6.1) journey (1.0.4) jquery-rails (2.0.3) json (1.7.5) mail (2.4.4) metaclass (0.0.1) mime-types (1.19) mocha (0.12.3) multi_json (1.3.7) mysql (2.8.1) mysql2 (0.3.11) net-ldap (0.3.1) pg (0.14.1) polyglot (0.3.3) rack (1.4.1) rack-cache (1.2) rack-openid (1.3.1) rack-ssl (1.3.2) rack-test (0.6.2) rails (3.2.9, 3.2.8) railties (3.2.9, 3.2.8) rake (10.0.0) rdoc (3.12) rmagick (2.13.1) ruby-openid (2.1.8) shoulda (2.11.3) sprockets (2.2.1, 2.1.3) sqlite3 (1.3.6) thor (0.16.0) tilt (1.3.3) treetop (1.4.12) tzinfo (0.3.35) yard (0.8.3) Results of 'bundle show`: Gems included by the bundle: * actionmailer (3.2.8) * actionpack (3.2.8) * activemodel (3.2.8) * activerecord (3.2.8) * activeresource (3.2.8) * activesupport (3.2.8) * arel (3.0.2) * builder (3.0.0) * bundler (1.2.1) * coderay (1.0.8) * erubis (2.7.0) * fastercsv (1.5.5) * hike (1.2.1) * i18n (0.6.1) * journey (1.0.4) * jquery-rails (2.0.3) * json (1.7.5) * mail (2.4.4) * metaclass (0.0.1) * mime-types (1.19) * mocha (0.12.3) * multi_json (1.3.7) * mysql (2.8.1) * net-ldap (0.3.1) * pg (0.14.1) * polyglot (0.3.3) * rack (1.4.1) * rack-cache (1.2) * rack-openid (1.3.1) * rack-ssl (1.3.2) * rack-test (0.6.2) * rails (3.2.8) * railties (3.2.8) * rake (10.0.0) * rdoc (3.12) * rmagick (2.13.1) * ruby-openid (2.1.8) * shoulda (2.11.3) * sprockets (2.1.3) * sqlite3 (1.3.6) * thor (0.16.0) * tilt (1.3.3) * treetop (1.4.12) * tzinfo (0.3.35) * yard (0.8.3)

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• Ruby net:LDAP returns "code = 53 message = Unwilling to perform" error

  - by Yong

  Hi, I am getting this error "code = 53, message = Unwilling to perform" while I am traversing the eDirectory treebase = "ou=Users,o=MTC". My ruby script can read about 126 entries from eDirectory and then it stops and prints out this error. I do not have any clue of why this is happening. I am using the ruby net:LDAP library version 0.0.4. The following is an excerpt of the code. require 'rubygems' require 'net/ldap' ldap = Net::LDAP.new :host => "10.121.121.112", :port => 389, :auth => {:method => :simple, :username => "cn=abc,ou=Users,o=MTC", :password => "123" } filter = Net::LDAP::Filter.eq( "mail", "*mtc.ca.gov" ) treebase = "ou=Users,o=MTC" attrs = ["mail", "uid", "cn", "ou", "fullname"] i = 0 ldap.search( :base => treebase, :attributes => attrs, :filter => filter ) do |entry| puts "DN: #{entry.dn}" i += 1 entry.each do |attribute, values| puts " #{attribute}:" values.each do |value| puts " --->#{value}" end end end puts "Total #{i} entries found." p ldap.get_operation_result Here is the output and the error at the end. Thank you very much for your help. DN: cn=uvogle,ou=Users,o=MTC mail: --->[email protected] fullname: --->Ursula Vogler ou: --->Legislation and Public Affairs dn: --->cn=uvogle,ou=Users,o=MTC cn: --->uvogle Total 126 entries found. OpenStruct code=53, message="Unwilling to perform"

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• Puppet write hosts using api call

  - by Ben Smith

  I'm trying to write a puppet function that calls my hosting environment (rackspace cloud atm) to list servers, then update my hosts file. My get_hosts function is currently this: require 'rubygems' require 'cloudservers' module Puppet::Parser::Functions newfunction(:get_hosts, :type => :rvalue) do |args| unless args.length == 1 raise Puppet::ParseError, "Must provide the datacenter" end DC = args[0] USERNAME = DC == "us" ? "..." : "..." API_KEY = DC == "us" ? "..." : "..." AUTH_URL = DC == "us" ? CloudServers::AUTH_USA : CloudServers::AUTH_UK DOMAIN = "..." cs = CloudServers::Connection.new(:username => USERNAME, :api_key => API_KEY, :auth_url => AUTH_URL) cs.list_servers_detail.map {|server| server.map {|s| { s[:name] + "." + DC + DOMAIN => { :ip => s[:addresses][:private][0], :aliases => s[:name] }}} } end end And I have a hosts.pp that calls this and 'should' write it to /etc/hosts. class hosts::us { $hosts = get_hosts("us") hostentry { $hosts: } } define hostentry() { host{ $name: ip => $name[ip], host_aliases => $name[aliases] } } As you can imagine, this isn't currently working and I'm getting a 'Symbol as array index at /etc/puppet/manifests/hosts.pp:2' error. I imagine, once I've realised what I'm currently doing wrong there will be more errors to come. Is this a good idea? Can someone help me work out how to do this?

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• Use preforker(ruby gem) with supervisor

  - by user1548832

  I also asked same question on stackoverflow.com http://stackoverflow.com/questions/13871169/use-preforkerruby-gem-with-supervisor But, superuser.com might much help to me. Can anyone amswer this? I want to run a server program using preforker ruby gem with supervisor. But error has occured. I wrote a following test program using preforker. #!/usr/bin/env ruby require 'rubygems' require 'preforker' Preforker.new(:app_name => 'test-preforker', :timeout => 60, :workers => 1) do |master| while master.wants_me_alive? do puts "hello" sleep 10 end end.run And a following supervisor config. [program:test-preforker] command=/home/tkono/tmp/test-preforker.rb stdout_logfile_maxbytes=1MB stderr_logfile_maxbytes=1MB stdout_logfile=/var/log/%(program_name)s.log stderr_logfile=/var/log/%(program_name)s.log autorestart=true Then, reload supervisor. # supervisorctl reload Restarted supervisord Here is the log file of supervisor. 2012-12-13 17:50:47,161 CRIT Supervisor running as root (no user in config file) 2012-12-13 17:50:47,163 WARN Included extra file "/etc/supervisor.d/test-preforker.ini" during parsing 2012-12-13 17:50:47,209 INFO RPC interface 'supervisor' initialized 2012-12-13 17:50:47,213 CRIT Server 'unix_http_server' running without any HTTP authentication checking 2012-12-13 17:50:47,215 INFO supervisord started with pid 12437 2012-12-13 17:50:48,231 INFO spawned: 'test-preforker' with pid 12440 2012-12-13 17:50:48,233 INFO exited: test-preforker (exit status 1; not expected) 2012-12-13 17:50:49,248 INFO spawned: 'test-preforker' with pid 12441 2012-12-13 17:50:49,261 INFO exited: test-preforker (exit status 1; not expected) 2012-12-13 17:50:51,267 INFO spawned: 'test-preforker' with pid 12442 2012-12-13 17:50:51,284 INFO exited: test-preforker (exit status 1; not expected) 2012-12-13 17:50:54,305 INFO spawned: 'test-preforker' with pid 12443 2012-12-13 17:50:54,308 INFO exited: test-preforker (exit status 1; not expected) 2012-12-13 17:50:55,311 INFO gave up: test-preforker entered FATAL state, too many start retries too quickly Please tell me what is wrong? A program using preforker cannot run with supervisor? preforker https://github.com/dcadenas/preforker supervisor http://supervisord.org/index.html

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• How to set up a server without a hosting control panel

  - by A4J

  I have always used a control panel on my dedicated servers - from cPanel to Plesk to Virtualmin, and I am now considering ditching a CP altogether and manually editing config files. My requirements are fairly simple, I will host multiple sites on the server; some Apache with PHP & Mysql and some Passenger with Rails & Postgres. All will require email smtp/pop. FTP/Stats will not be required. Could someone please give me a quick run-down of what I would need to do - in terms of installing software and configuration? My server will come with a base install of CentOS 6.4 minimal. My thoughts so far: Install/update latest versions of MySQL & Postgres (are they 'safe' out of the box? Or do I need to do anything else like set up root passwords etc?) Install Apache & PHP (again, are the base installs good to go or do they require security tweaks?) Set up nameservers/hostnames/reverse DNS etc (Any guides on how to do this please?) Install Rubygems Install and configure Dovecot and Postfix (any tips on doing this? Or links to how-tos that cover it please?) Set up each website - any links to guides on how to do this? Install/configure firewall (or is the default install good to go?) Any other tips or advice would be greatly appreciated, as would links to guides or how-tos.

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• Bundler isn't loading gems

  - by Garrett

  I have been having a problem with using Bundler and being able to access my gems without having to require them somewhere, as config.gem used to do that for me (as far as I know). In my Rails 3 app, I defined my Gemfile like so: clear_sources source "http://gemcutter.org" source "http://gems.github.com" bundle_path "vendor/bundler_gems" ## Bundle edge rails: git "git://github.com/rails/arel.git" git "git://github.com/rails/rack.git" gem "rails", :git => "git://github.com/rails/rails.git" ## Bundle gem "mongo_mapper", :git => "git://github.com/jnunemaker/mongomapper.git" gem "bluecloth", ">= 2.0.0" Then I run gem bundle, it bundles it all up like expected. Inside the environment.rb file that is included within boot.rb it looks like this: # DO NOT MODIFY THIS FILE module Bundler file = File.expand_path(__FILE__) dir = File.dirname(file) ENV["PATH"] = "#{dir}/../../../../bin:#{ENV["PATH"]}" ENV["RUBYOPT"] = "-r#{file} #{ENV["RUBYOPT"]}" $LOAD_PATH.unshift File.expand_path("#{dir}/gems/builder-2.1.2/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/builder-2.1.2/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/text-hyphen-1.0.0/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/text-hyphen-1.0.0/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/i18n-0.3.3/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/i18n-0.3.3/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/arel/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/arel/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/activemodel/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/activemodel/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/jnunemaker-validatable-1.8.1/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/jnunemaker-validatable-1.8.1/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/abstract-1.0.0/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/abstract-1.0.0/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/erubis-2.6.5/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/erubis-2.6.5/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/mime-types-1.16/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/mime-types-1.16/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/mail-2.1.2/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/mail-2.1.2/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/rake-0.8.7/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/rake-0.8.7/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/railties/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/railties/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/memcache-client-1.7.7/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/memcache-client-1.7.7/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rack/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rack/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/rack-test-0.5.3/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/rack-test-0.5.3/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/rack-mount-0.4.5/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/rack-mount-0.4.5/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/actionpack/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/actionpack/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/bluecloth-2.0.7/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/bluecloth-2.0.7/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/bluecloth-2.0.7/ext") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/activerecord/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/activerecord/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/text-format-1.0.0/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/text-format-1.0.0/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/actionmailer/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/actionmailer/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/tzinfo-0.3.16/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/tzinfo-0.3.16/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/activesupport/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/activesupport/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/activeresource/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/activeresource/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/rails/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/mongo-0.18.2/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/gems/mongo-0.18.2/lib") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/mongomapper/bin") $LOAD_PATH.unshift File.expand_path("#{dir}/dirs/mongomapper/lib") @gemfile = "#{dir}/../../../../Gemfile" require "rubygems" unless respond_to?(:gem) # 1.9 already has RubyGems loaded @bundled_specs = {} @bundled_specs["builder"] = eval(File.read("#{dir}/specifications/builder-2.1.2.gemspec")) @bundled_specs["builder"].loaded_from = "#{dir}/specifications/builder-2.1.2.gemspec" @bundled_specs["text-hyphen"] = eval(File.read("#{dir}/specifications/text-hyphen-1.0.0.gemspec")) @bundled_specs["text-hyphen"].loaded_from = "#{dir}/specifications/text-hyphen-1.0.0.gemspec" @bundled_specs["i18n"] = eval(File.read("#{dir}/specifications/i18n-0.3.3.gemspec")) @bundled_specs["i18n"].loaded_from = "#{dir}/specifications/i18n-0.3.3.gemspec" @bundled_specs["arel"] = eval(File.read("#{dir}/specifications/arel-0.2.pre.gemspec")) @bundled_specs["arel"].loaded_from = "#{dir}/specifications/arel-0.2.pre.gemspec" @bundled_specs["activemodel"] = eval(File.read("#{dir}/specifications/activemodel-3.0.pre.gemspec")) @bundled_specs["activemodel"].loaded_from = "#{dir}/specifications/activemodel-3.0.pre.gemspec" @bundled_specs["jnunemaker-validatable"] = eval(File.read("#{dir}/specifications/jnunemaker-validatable-1.8.1.gemspec")) @bundled_specs["jnunemaker-validatable"].loaded_from = "#{dir}/specifications/jnunemaker-validatable-1.8.1.gemspec" @bundled_specs["abstract"] = eval(File.read("#{dir}/specifications/abstract-1.0.0.gemspec")) @bundled_specs["abstract"].loaded_from = "#{dir}/specifications/abstract-1.0.0.gemspec" @bundled_specs["erubis"] = eval(File.read("#{dir}/specifications/erubis-2.6.5.gemspec")) @bundled_specs["erubis"].loaded_from = "#{dir}/specifications/erubis-2.6.5.gemspec" @bundled_specs["mime-types"] = eval(File.read("#{dir}/specifications/mime-types-1.16.gemspec")) @bundled_specs["mime-types"].loaded_from = "#{dir}/specifications/mime-types-1.16.gemspec" @bundled_specs["mail"] = eval(File.read("#{dir}/specifications/mail-2.1.2.gemspec")) @bundled_specs["mail"].loaded_from = "#{dir}/specifications/mail-2.1.2.gemspec" @bundled_specs["rake"] = eval(File.read("#{dir}/specifications/rake-0.8.7.gemspec")) @bundled_specs["rake"].loaded_from = "#{dir}/specifications/rake-0.8.7.gemspec" @bundled_specs["railties"] = eval(File.read("#{dir}/specifications/railties-3.0.pre.gemspec")) @bundled_specs["railties"].loaded_from = "#{dir}/specifications/railties-3.0.pre.gemspec" @bundled_specs["memcache-client"] = eval(File.read("#{dir}/specifications/memcache-client-1.7.7.gemspec")) @bundled_specs["memcache-client"].loaded_from = "#{dir}/specifications/memcache-client-1.7.7.gemspec" @bundled_specs["rack"] = eval(File.read("#{dir}/specifications/rack-1.1.0.gemspec")) @bundled_specs["rack"].loaded_from = "#{dir}/specifications/rack-1.1.0.gemspec" @bundled_specs["rack-test"] = eval(File.read("#{dir}/specifications/rack-test-0.5.3.gemspec")) @bundled_specs["rack-test"].loaded_from = "#{dir}/specifications/rack-test-0.5.3.gemspec" @bundled_specs["rack-mount"] = eval(File.read("#{dir}/specifications/rack-mount-0.4.5.gemspec")) @bundled_specs["rack-mount"].loaded_from = "#{dir}/specifications/rack-mount-0.4.5.gemspec" @bundled_specs["actionpack"] = eval(File.read("#{dir}/specifications/actionpack-3.0.pre.gemspec")) @bundled_specs["actionpack"].loaded_from = "#{dir}/specifications/actionpack-3.0.pre.gemspec" @bundled_specs["bluecloth"] = eval(File.read("#{dir}/specifications/bluecloth-2.0.7.gemspec")) @bundled_specs["bluecloth"].loaded_from = "#{dir}/specifications/bluecloth-2.0.7.gemspec" @bundled_specs["activerecord"] = eval(File.read("#{dir}/specifications/activerecord-3.0.pre.gemspec")) @bundled_specs["activerecord"].loaded_from = "#{dir}/specifications/activerecord-3.0.pre.gemspec" @bundled_specs["text-format"] = eval(File.read("#{dir}/specifications/text-format-1.0.0.gemspec")) @bundled_specs["text-format"].loaded_from = "#{dir}/specifications/text-format-1.0.0.gemspec" @bundled_specs["actionmailer"] = eval(File.read("#{dir}/specifications/actionmailer-3.0.pre.gemspec")) @bundled_specs["actionmailer"].loaded_from = "#{dir}/specifications/actionmailer-3.0.pre.gemspec" @bundled_specs["tzinfo"] = eval(File.read("#{dir}/specifications/tzinfo-0.3.16.gemspec")) @bundled_specs["tzinfo"].loaded_from = "#{dir}/specifications/tzinfo-0.3.16.gemspec" @bundled_specs["activesupport"] = eval(File.read("#{dir}/specifications/activesupport-3.0.pre.gemspec")) @bundled_specs["activesupport"].loaded_from = "#{dir}/specifications/activesupport-3.0.pre.gemspec" @bundled_specs["activeresource"] = eval(File.read("#{dir}/specifications/activeresource-3.0.pre.gemspec")) @bundled_specs["activeresource"].loaded_from = "#{dir}/specifications/activeresource-3.0.pre.gemspec" @bundled_specs["rails"] = eval(File.read("#{dir}/specifications/rails-3.0.pre.gemspec")) @bundled_specs["rails"].loaded_from = "#{dir}/specifications/rails-3.0.pre.gemspec" @bundled_specs["mongo"] = eval(File.read("#{dir}/specifications/mongo-0.18.2.gemspec")) @bundled_specs["mongo"].loaded_from = "#{dir}/specifications/mongo-0.18.2.gemspec" @bundled_specs["mongo_mapper"] = eval(File.read("#{dir}/specifications/mongo_mapper-0.6.10.gemspec")) @bundled_specs["mongo_mapper"].loaded_from = "#{dir}/specifications/mongo_mapper-0.6.10.gemspec" def self.add_specs_to_loaded_specs Gem.loaded_specs.merge! @bundled_specs end def self.add_specs_to_index @bundled_specs.each do |name, spec| Gem.source_index.add_spec spec end end add_specs_to_loaded_specs add_specs_to_index def self.require_env(env = nil) context = Class.new do def initialize(env) @env = env && env.to_s ; end def method_missing(*) ; yield if block_given? ; end def only(*env) old, @only = @only, _combine_only(env.flatten) yield @only = old end def except(*env) old, @except = @except, _combine_except(env.flatten) yield @except = old end def gem(name, *args) opt = args.last.is_a?(Hash) ? args.pop : {} only = _combine_only(opt[:only] || opt["only"]) except = _combine_except(opt[:except] || opt["except"]) files = opt[:require_as] || opt["require_as"] || name files = [files] unless files.respond_to?(:each) return unless !only || only.any? {|e| e == @env } return if except && except.any? {|e| e == @env } if files = opt[:require_as] || opt["require_as"] files = Array(files) files.each { |f| require f } else begin require name rescue LoadError # Do nothing end end yield if block_given? true end private def _combine_only(only) return @only unless only only = [only].flatten.compact.uniq.map { |o| o.to_s } only &= @only if @only only end def _combine_except(except) return @except unless except except = [except].flatten.compact.uniq.map { |o| o.to_s } except |= @except if @except except end end context.new(env && env.to_s).instance_eval(File.read(@gemfile), @gemfile, 1) end end module Gem @loaded_stacks = Hash.new { |h,k| h[k] = [] } def source_index.refresh! super Bundler.add_specs_to_index end end But when I try to access any of my gems, e.g. MongoMapper, Paperclip, Haml, etc. I get: NameError: uninitialized constant MongoMapper The same goes for any other gem. Does Bundler not include gems like the old Rails 2.0 did? Or is something messed up with my system? Any help would be appreciated, thank you!

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• Impossible to do POSTs with appengine-jruby/RoR: Reflection is not allowed

  - by Joel Cuevas

  I'm trying to build a site with RoR on Google App Engine. I'm using the google-appengine gem (http://appengine-jruby.googlecode.com) and following the instructions in (http://gist.github.com/268192). The problem is that I can't submit ANY form! I've already tried this in two diferent clean Win 7 Pro envs and the result is the same. After install Ruby 1.8.6 (One-Click Installer): 1. gem update --system 2. gem install rails 3. gem install google-appengine 4. gem install rails_dm_datastore 5. gem install activerecord-nulldb-adapter 6. curl -O http://appengine-jruby.googlecode.com/hg/demos/rails2/rails2_appengine.rb 7. ruby rails2_appengine.rb (previously downloaded) 8. rails myproj 9. chmod myproj 10. ruby script/generate dd_model MyModel f1:string f2:float f3:float f4:float f5:integer f6:integer f7:integer -f 11. ruby script/generate scaffold MyModel f1:string f2:float f3:float f4:float f5:integer f6:integer f7:integer -f --skip-migration 12. dev_appserver.rb -p 3000 . At this point, I manually test the scaffold in (http://localhost:3000/my_models). The index is OK, then I create a new registry with the generated form, everything's fine, but when I try to create a second one, I get a "java.lang.RuntimeException: DummyDynamicScope should never be used for backref storage" in the console. As far as I read this is a won't-fix behavior in JRuby 1.4.1, but it's converted to a debug only warning in 1.5.0, so I proceed to install the pre release. 13. gem install appengine-jruby-jars --pre With this, that exception is solved and everything works great... until I move the project to the GAE server. 14. ruby appcfg.rb update . And now, in (http://myproj.appspot.com/my_models), again, the index is fine, also the new form, but in the moment that I submit it with valid data, I get a 500 error: "java.lang.IllegalAccessException: Reflection is not allowed on public int". As I said, this behavior is not present in the local SDK. In both cases, I'm completely unable to post anything. This is what I have right now in the GAE environment: Ruby version 1.8.7 (java) RubyGems disabled Rack version 1.1 Rails version 2.3.5 Action Pack version 2.3.5 Active Support version 2.3.5 DataMapper version 0.10.2 Environment production JRuby Runtime version 1.5.0.pre JRuby-Rack version 0.9.7 AppEngine SDK version Google App Engine/1.3.3 AppEngine APIs version 0.0.15 And this are my intalled gems: actionmailer (2.3.5) actionpack (2.3.5) activerecord (2.3.5) activerecord-nulldb-adapter (0.2.0) activeresource (2.3.5) activesupport (2.3.5) addressable (2.1.2) appengine-apis (0.0.15) appengine-jruby-jars (0.0.8.pre, 0.0.7) appengine-rack (0.0.8) appengine-sdk (1.3.3.1) appengine-tools (0.0.12) bundler08 (0.8.5) dm-appengine (0.0.8) dm-ar-finders (0.10.2) dm-core (0.10.2) dm-timestamps (0.10.2) dm-validations (0.10.2) extlib (0.9.14) fxri (0.3.7, 0.3.6) google-appengine (0.0.12) hpricot (0.8.2 x86-mswin32, 0.6 mswin32) jruby-rack (0.9.8, 0.9.7) log4r (1.1.7, 1.0.5) rack (1.1.0, 1.0.1) rails (2.3.5) rails_appengine (0.0.3) rails_dm_datastore (0.2.9) rake (0.8.7, 0.7.3) rubygems-update (1.3.7, 1.3.6) rubyzip (0.9.4) sources (0.0.1) win32-api (1.4.6 x86-mswin32-60, 1.0.4 mswin32) win32-clipboard (0.5.2, 0.4.3) win32-dir (0.3.6, 0.3.2) win32-eventlog (0.5.2, 0.4.6) win32-file (0.6.3, 0.5.4) win32-file-stat (1.3.4, 1.2.7) win32-process (0.6.2, 0.5.3) win32-sapi (0.1.5, 0.1.4) win32-sound (0.4.2, 0.4.1) windows-api (0.4.0, 0.2.0) windows-pr (1.0.9, 0.7.2) I'm unable to attach the full logs of the exceptions because of the character limits, but I can provide them under request. Here's an abstract of them: DummyDynamicScope (dev and prod envs): 14-may-2010 7:18:40 com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1273821520195000] javax.servlet.ServletContext log: Application Error java.lang.RuntimeException: DummyDynamicScope should never be used for backref storage at org.jruby.runtime.scope.DummyDynamicScope.getBackRef(DummyDynamicScope.java:49) at org.jruby.RubyRegexp.updateBackRef(RubyRegexp.java:1404) at org.jruby.RubyRegexp.updateBackRef(RubyRegexp.java:1396) at org.jruby.RubyRegexp.search(RubyRegexp.java:1386) at org.jruby.RubyRegexp.op_match(RubyRegexp.java:1301) at org.jruby.RubyString.op_match(RubyString.java:1446) at org.jruby.RubyString$i_method_1_0$RUBYINVOKER$op_match.call(org/jruby/RubyString$i_method_1_0$RUBYINVOKER$op_match.gen) at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodOneOrN.call(JavaMethod.java:721) at org.jruby.RubyClass.finvoke(RubyClass.java:472) at org.jruby.RubyObject.send(RubyObject.java:1442) at org.jruby.RubyObject$i_method_multi$RUBYINVOKER$send.call(org/jruby/RubyObject$i_method_multi$RUBYINVOKER$send.gen) at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodZeroOrOneOrTwoOrNBlock.call(JavaMethod.java:276) at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:330) at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:189) at ruby.jit.ruby.C_3a_.Desarrollo.AppEngine.gorgory.WEB_minus_INF.lib.gems_dot_jar.bundler_gems.jruby.$1_dot_8.gems.dm_minus_validations_minus_0_dot_10_dot_2.lib.dm_minus_validations.validators.numeric_validator.validate_with_comparison at ruby.jit.ruby.C_3a_.Desarrollo.AppEngine.gorgory.WEB_minus_INF.lib.gems_dot_jar.bundler_gems.jruby.$1_dot_8.gems.dm_minus_validations_minus_0_dot_10_dot_2.lib.dm_minus_validations.validators.numeric_validator.validate_with_comparison at org.jruby.internal.runtime.methods.JittedMethod.call(JittedMethod.java:102) at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:144) at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:280) at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:69) at org.jruby.ast.FCallManyArgsNode.interpret(FCallManyArgsNode.java:60) at org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104) at org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:229) at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:193) at org.jruby.RubyClass.finvoke(RubyClass.java:491) at org.jruby.RubyObject.send(RubyObject.java:1448) at org.jruby.RubyObject$i_method_multi$RUBYINVOKER$send.call(org/jruby/RubyObject$i_method_multi$RUBYINVOKER$send.gen) at org.jruby.internal.runtime.methods.JavaMethod$JavaMethodZeroOrOneOrTwoOrThreeOrNBlock.call(JavaMethod.java:293) at org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:350) at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:229) at ruby.jit.ruby.C_3a_.Desarrollo.AppEngine.gorgory.WEB_minus_INF.lib.gems_dot_jar.bundler_gems.jruby.$1_dot_8.gems.dm_minus_validations_minus_0_dot_10_dot_2.lib.dm_minus_validations.validators.numeric_validator.validate_with28985350_50 at ruby.jit.ruby.C_3a_.Desarrollo.AppEngine.gorgory.WEB_minus_INF.lib.gems_dot_jar.bundler_gems.jruby.$1_dot_8.gems.dm_minus_validations_minus_0_dot_10_dot_2.lib.dm_minus_validations.validators.numeric_validator.validate_with28985350_50 at org.jruby.internal.runtime.methods.JittedMethod.call(JittedMethod.java:221) at org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:201) at org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:227) at org.jruby.ast.FCallThreeArgNode.interpret(FCallThreeArgNode.java:40) Reflection (only prod env): Java::JavaLang::SecurityException (java.lang.IllegalAccessException: Reflection is not allowed on public int java.lang.String$CaseInsensitiveComparator.compare(java.lang.String,java.lang.String)): com.google.appengine.runtime.Request.process-92563a0605f433ea(Request.java) java.lang.reflect.AccessibleObject.setAccessible(AccessibleObject.java:40) org.jruby.javasupport.JavaMethod.<init>(JavaMethod.java:176) org.jruby.javasupport.JavaMethod.create(JavaMethod.java:183) org.jruby.java.invokers.MethodInvoker.createCallable(MethodInvoker.java:23) org.jruby.java.invokers.RubyToJavaInvoker.<init>(RubyToJavaInvoker.java:63) org.jruby.java.invokers.MethodInvoker.<init>(MethodInvoker.java:13) org.jruby.java.invokers.InstanceMethodInvoker.<init>(InstanceMethodInvoker.java:15) org.jruby.javasupport.JavaClass$InstanceMethodInvokerInstaller.install(JavaClass.java:339) org.jruby.javasupport.JavaClass.installClassMethods(JavaClass.java:723) org.jruby.javasupport.JavaClass.setupProxy(JavaClass.java:586) org.jruby.javasupport.Java.createProxyClass(Java.java:506) org.jruby.javasupport.Java.getProxyClass(Java.java:445) org.jruby.javasupport.Java.getInstance(Java.java:354) org.jruby.javasupport.JavaUtil.convertJavaToUsableRubyObject(JavaUtil.java:143) org.jruby.javasupport.JavaClass$ConstantField.install(JavaClass.java:360) org.jruby.javasupport.JavaClass.installClassFields(JavaClass.java:711) org.jruby.javasupport.JavaClass.setupProxy(JavaClass.java:585) org.jruby.javasupport.Java.createProxyClass(Java.java:506) org.jruby.javasupport.Java.getProxyClass(Java.java:445) org.jruby.javasupport.Java.getProxyOrPackageUnderPackage(Java.java:885) org.jruby.javasupport.Java.get_proxy_or_package_under_package(Java.java:918) org.jruby.javasupport.JavaUtilities.get_proxy_or_package_under_package(JavaUtilities.java:54) org.jruby.javasupport.JavaUtilities$s_method_2_0$RUBYINVOKER$get_proxy_or_package_under_package.call(org/jruby/javasupport/JavaUtilities$s_method_2_0$RUBYINVOKER$get_proxy_or_package_under_package.gen:65535) org.jruby.runtime.callsite.CachingCallSite.cacheAndCall(CachingCallSite.java:329) org.jruby.runtime.callsite.CachingCallSite.call(CachingCallSite.java:188) org.jruby.ast.CallTwoArgNode.interpret(CallTwoArgNode.java:59) org.jruby.ast.NewlineNode.interpret(NewlineNode.java:104) org.jruby.ast.BlockNode.interpret(BlockNode.java:71) org.jruby.internal.runtime.methods.InterpretedMethod.call(InterpretedMethod.java:113) org.jruby.internal.runtime.methods.DefaultMethod.call(DefaultMethod.java:138) org.jruby.javasupport.util.RuntimeHelpers$MethodMissingMethod.call(RuntimeHelpers.java:389) org.jruby.internal.runtime.methods.DynamicMethod.call(DynamicMethod.java:182) What should I do now? Any hint would be wellcome. Thanks!

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• WebSocket handshake with Ruby and EM::WebSocket::Server

  - by Chad Johnson

  I am trying to create a simple WebSocket connection in JavaScript against my Rails app. I get the following: WebSocket connection to 'ws://localhost:4000/' failed: Error during WebSocket handshake: 'Sec-WebSocket-Accept' header is missing What am I doing wrong? Here is my code: JavaScript: var socket = new WebSocket('ws://localhost:4000'); socket.onopen = function() { var handshake = "GET / HTTP/1.1\n" + "Host: localhost\n" + "Upgrade: websocket\n" + "Connection: Upgrade\n" + "Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==\n" + "Sec-WebSocket-Protocol: quote\n" + "Sec-WebSocket-Version: 13\n" + "Origin: http://localhost\n"; socket.send(handshake); }; socket.onmessage = function(data) { console.log(data); }; Ruby: require 'rubygems' require 'em-websocket-server' module QuoteService class WebSocket < EventMachine::WebSocket::Server def on_connect handshake_response = "HTTP/1.1 101 Switching Protocols\n" handshake_response << "Upgrade: websocket\n" handshake_response << "Connection: Upgrade\n" handshake_response << "Sec-WebSocket-Accept: HSmrc0sMlYUkAGmm5OPpG2HaGWk=\n" handshake_response << "Sec-WebSocket-Protocol: quote\n" send_message(handshake_response) end def on_receive(data) puts 'RECEIVED: ' + data end end end EventMachine.run do print 'Starting WebSocket server...' EventMachine.start_server '0.0.0.0', 4000, QuoteService::WebSocket puts 'running' end The handshake headers are per Wikipedia.

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• how to use nokogiri methods .xpath & .at_xpath

  - by Radek

  I'm learning how to use nokogiri and few questions came to me based on the code below require 'rubygems' require 'mechanize' post_agent = WWW::Mechanize.new post_page = post_agent.get('http://www.vbulletin.org/forum/showthread.php?t=230708') puts "\nabsolute path with tbody gives nil" puts post_page.parser.xpath('/html/body/div/div/div/div/div/table/tbody/tr/td/div[2]').xpath('text()').to_s.strip.inspect puts "\n.at_xpath gives an empty string" puts post_page.parser.at_xpath("//div[@id='posts']/div/table/tr/td/div[2]").at_xpath('text()').to_s.strip.inspect puts "\ntwo lines solution with .at_xpath gives an empty string" rows = post_page.parser.xpath("//div[@id='posts']/div/table/tr/td/div[2]") puts rows[0].at_xpath('text()').to_s.strip.inspect puts puts "two lines working code" rows = post_page.parser.xpath("//div[@id='posts']/div/table/tr/td/div[2]") puts rows[0].xpath('text()').to_s.strip puts "\none line working code" puts post_page.parser.xpath("//div[@id='posts']/div/table/tr/td/div[2]")[0].xpath('text()').to_s.strip puts "\nanother one line code" puts post_page.parser.at_xpath("//div[@id='posts']/div/table/tr/td/div[2]").xpath('text()').to_s.strip puts "\none line code with full path" puts post_page.parser.xpath("/html/body/div/div/div/div/div/table/tr/td/div[2]")[0].xpath('text()').to_s.strip is it better to use // or / in xpath? @AnthonyWJones says that 'the use of an unprefixed //' is not so good idea I had to remove tbody from any working xpath otherwise I got 'nil' result. How is possible to remove an element from the xpath to get things work? do I have to use .xpath twice to extract data if not using full xpath? why I cannot make .at_xpath working to extract data? it works nicely here what is the difference?

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• Missing functions in ruby 1.8

  - by Adrian

  I have a ruby gem that I developed with ruby 1.9, and it works. With ruby 1.8, though, it says this when I try to run it: dyld: lazy symbol binding failed: Symbol not found: _RBIGNUM_SIGN Referenced from: /Users/Adrian/Desktop/num_to_bytes/ext/num_to_bytes/num_to_bytes.bundle Expected in: flat namespace dyld: Symbol not found: _RBIGNUM_SIGN Referenced from: /Users/Adrian/Desktop/num_to_bytes/ext/num_to_bytes/num_to_bytes.bundle Expected in: flat namespace Trace/BPT trap If I comment out the line that uses RBIGNUM_SIGN, it complains about other functions like rb_big_modulo. Some things work, like NUM2LONG. Here are some things I have tried: In http://github.com/ruby/ruby/blob/ruby_1_8_7/ruby.h, RBIGNUM_SIGN is defined. But in all versions of ruby I have tried, it is not there. I guessed that maybe it was defined in a different .h file. Knowing that Hpricot works with 1.8, I looked at http://github.com/hpricot/hpricot/blob/master/ext/hpricot_scan/hpricot_scan.h. It doesn't include any other files that #define it. Putting things like extern VALUE rb_big_modulo(VALUE x); at the beginning of my extension don't help. Using a brand new Ubuntu installation, I apt-getted ruby, tried to install the gem, and it didn't work either. Putting have_library 'ruby', 'rb_big_modulo' in my extconf.rb didn't work. As you can probably see, I am getting desperate (after weeks of trying things!). So, how can I get this to work? Here is the gem: http://rubygems.org/gems/num_to_bytes Here is the source: http://gist.github.com/404584

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• Send and Receive JSON using RestClient and Sinatra

  - by lakshmanan

  Hi, I am trying to send a JSON data to a Sinatra app by RestClient ruby API. At client(client.rb) (using RestClient API) response = RestClient.post 'http://localhost:4567/solve', jdata, :content_type => :json, :accept => :json At server (Sinatra) require "rubygems" require "sinatra" post '/solve/:data' do jdata = params[:data] for_json = JSON.parse(jdata) end I get the following error /Library/Ruby/Gems/1.8/gems/rest-client-1.5.1/lib/restclient/abstract_response.rb:53:in `return!': Resource Not Found (RestClient::ResourceNotFound) from /Library/Ruby/Gems/1.8/gems/rest-client-1.5.1/lib/restclient/request.rb:193:in `process_result' from /Library/Ruby/Gems/1.8/gems/rest-client-1.5.1/lib/restclient/request.rb:142:in `transmit' from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/net/http.rb:543:in `start' from /Library/Ruby/Gems/1.8/gems/rest-client-1.5.1/lib/restclient/request.rb:139:in `transmit' from /Library/Ruby/Gems/1.8/gems/rest-client-1.5.1/lib/restclient/request.rb:56:in `execute' from /Library/Ruby/Gems/1.8/gems/rest-client-1.5.1/lib/restclient/request.rb:31:in `execute' from /Library/Ruby/Gems/1.8/gems/rest-client-1.5.1/lib/restclient.rb:72:in `post' from client.rb:52 All I want is to send JSON data and receive a JSON data back using RestClient and Sinatra..but whatever I try, I get the above error. I m stuck with this for 3 hours. Please help

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• Ruby on Rails undefined method `camelize' for "app":String

  - by Lukasz

  Hi! I just tried to play with Ruby on Rails on Snow Leopard. I was following this tutorial: http://developer.apple.com/tools/rubyonrails.html Whatever I try to do with rails I end up with: MacBook-Pro-lm:~ lukasz$ rails blog **undefined method `camelize' for "app":String** MacBook-Pro-lm:~ lukasz$ rails --help **undefined method `camelize' for "app":String** Really basic things... however - verbosing rails works: MacBook-Pro-lm:bin lukasz$ rails -v Rails 2.3.5 MacBook-Pro-lm:~ lukasz$ ruby -v ruby 1.8.7 (2010-01-10 patchlevel 249) [i686-darwin10] MacBook-Pro-lm:bin lukasz$ gem -v 1.3.7 So it seems I have installed and upgarded ruby (using macports), rubygems and rails successfully (according to terminal). There are also few other packages installed to support we development like passenger and mysql5, etc... I can find ruby installed in the /opt/local/bin directory. My environment PATH variable is: PATH=/opt/local/bin:/opt/local/sbin:/opt/local/bin:/opt/local/sbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin The is something fishy going on. It must be some stupid basic problem. Google says that there could be a problem with ruby-iconv library but I can not find/install this package using port or gem commands. Plese help.... what am I missing here?

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• Why don't RSpec's methods, "get", "post", "put", "delete" work in a controller spec in a gem (or out

  - by ramon.tayag

  I'm not new to Rails or Rspec, but I'm new to making gems. When I test my controllers, the REST methods "get", "post", "put", "delete" give me an undefined method error. Below you'll find code, but if you prefer to see it in a pastie, click here. Thanks! Here's my spec_helper: $LOAD_PATH.unshift(File.dirname(__FILE__)) $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib')) require 'rubygems' require 'active_support' unless defined? ActiveSupport # Need this so that mattr_accessor will work in Subscriber module require 'active_record/acts/subscribable' require 'active_record/acts/subscriber' require 'action_view' require 'action_controller' # Since we'll be testing subscriptions controller #require 'action_controller/test_process' require 'spec' require 'spec/autorun' # Need active_support to user mattr_accessor in Subscriber module, and to set the following inflection ActiveSupport::Inflector.inflections do |inflect| inflect.irregular 'dorkus', 'dorkuses' end require 'active_record' # Since we'll be testing a User model which will be available in the app # Tell active record to load the subscribable files ActiveRecord::Base.send(:include, ActiveRecord::Acts::Subscribable) ActiveRecord::Base.send(:include, ActiveRecord::Acts::Subscriber) require 'app/models/user' # The user model we expect in the application require 'app/models/person' require 'app/models/subscription' require 'app/models/dorkus' require 'app/controllers/subscriptions_controller' # The controller we're testing #... more but I think irrelevant My subscriptions_spec: require File.expand_path(File.dirname(__FILE__) + '/../spec_helper') describe SubscriptionsController, "on GET index" do load_schema describe ", when only subscribable params are passed" do it "should list all the subscriptions of the subscribable object" end describe ", when only subscriber params are passed" do it "should list all the subscriptions of the subscriber" do u = User.create d1 = Dorkus.create d2 = Dorkus.create d1.subscribe! u d2.subscribe! u get :index, {:subscriber_type = "User", :subscriber_id = u.id} assigns[:subscriptions].should == u.subscriptions end end end My subscriptions controller: class SubscriptionsController The error: NoMethodError in 'SubscriptionsController on GET index , when only subscriber params are passed should list all the subscriptions of the subscriber' undefined method `get' for # /home/ramon/rails/acts_as_subscribable/spec/controllers/subscriptions_controller_spec.rb:21:

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• Reloading Sinatra app on every request on Windows

  - by Darth

  I've set up Rack::Reload according to this thread # config.ru require 'rubygems' require 'sinatra' set :environment, :development require 'app' run Sinatra::Application # app.rb class Sinatra::Reloader < Rack::Reloader def safe_load(file, mtime, stderr = $stderr) if file == Sinatra::Application.app_file ::Sinatra::Application.reset! stderr.puts "#{self.class}: reseting routes" end super end end configure(:development) { use Sinatra::Reloader } get '/' do 'foo' end Running with thin via thin start -R config.ru, but it only reloads newly added routes. When I change already existing route, it still runs the old code. When I add new route, it correctly reloads it, so it is accessible, but it doesn't reload anything else. For example, if I changed routes to get '/' do 'bar' end get '/foo' do 'baz' end Than / would still serve foo, even though it has changed, but /foo would correctly reload and serve baz. Is this normal behavior, or am I missing something? I'd expect whole source file to be reloaded. The only way around I can think of right now is restarting whole webserver when filesystem changes. I'm running on Windows Vista x64, so I can't use shotgun because of fork().

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• Using HAML with custom filters

  - by Guard

  Hi everybody. I feel quite excited about HAML and CoffeeScript and am working on tutorial showing how to use them in non-Rails environment. So, haml has easy to use command-line utility haml input.haml output.html. And, what is great, there exist a project (one of many forks: https://github.com/aussiegeek/coffee-haml-filter) aimed at providing custom filter that converts CoffeeScript into JS inside of HAML files. Unfortunately (or am I missing something?) haml doesn't allow specifying custom filters on the command line or with some configuration file. I (not being a Ruby fan or even knowing it enough) managed to solve it (based on some clever suggestion somewhere on SO) with this helper script: haml.rb require 'rubygems' require 'active_support/core_ext/object/blank' require 'haml' require 'haml/filters/coffee' template = ARGV.length > 0 ? File.read(ARGV.shift) : STDIN.read haml_engine = Haml::Engine.new(template) file = ARGV.length > 0 ? File.open(ARGV.shift, 'w') : STDOUT file.write(haml_engine.render) file.close Which is quite straightforward, except of requires in the beginning. Now, the questions are: 1) should I really use it, or is there another way to have on-demand HAML to HTML compilation with custom filters? 2) What about HAML watch mode? It's great and convenient. I can, of course, create a polling script in python that will watch the directory changes and call this .rb script, but it looks like a dirty solution.

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