rails console Cloud9 - Can't open console - cloud9-ide

NOTE - I solved my own problem. The issue was I was running the "rails console" command from the workspace, instead of of the sample_app directory.
When I try to run "rails console" in Cloud9, I get the below. All I'm trying to do is open the console - what am I missing? Thanks!
~/workspace $ rails console
Usage:
rails new APP_PATH [options]
Runtime options:
...
Rails options:
...
Description:
The 'rails new' command creates a new Rails application with a default
directory structure and configuration at the path you specify.
You can specify extra command-line arguments to be used every time
'rails new' runs in the .railsrc configuration file in your home directory.
Note that the arguments specified in the .railsrc file don't affect the
defaults values shown above in this help message.
Example:
rails new ~/Code/Ruby/weblog
This generates a skeletal Rails installation in ~/Code/Ruby/weblog.
See the README in the newly created application to get going.

You're probably in the workspace directory. You need to be in your app's directory:
cd app_name/
or
cd ~/workspace/app_name/

Related

Rubymine (Ruby): Why can't I run rspec from within the IDE?

If I run the following command from the terminal I am able to run the rspec test cases successfully.
bundle exec rspec spec/requests/api/contacts/v3_get_tags_spec.rb
However if I am in the Rubymine IDE and do:
1- Right click on the file
2- Select "Run"
Then i get the following error message.
"in `require': cannot load such file -- spec_helper (LoadError)"
Also i am seeing a lot of errors related to gems not found, i feel link Rubymine is not configured correctly. What am i missing?
Note: Both the terminal and the IDE are running in the same root directory. I am pretty sure there is a problem with the configuration of the IDE. I checked the preference setting and it is using the same version of ruby as the one I am running in the termina.
Any help on the issue would be greatly appreciated.

Rails console not working on server

When I run bundle exec rails console production or rails console production via SSH on the server in the Current folder of the Capistrano deploy I get:
Usage:
rails new APP_PATH [options]
Options:
(...)
with an explanation to start a new app. Locally it works. Why can't I start a console remotely?
I'm assuming that you updated to rails 4 from version 3 and your app can't find the executables in the bin directory. Run this to see your rails version:
$ rails -v
If your rails version is 4 or above, try running this:
$ rake rails:update:bin
Source: Rails 4 Release Notes
6.1 Notable changes
Your app's executables now live in the bin/ dir. Run rake rails:update:bin to get bin/bundle, bin/rails, and bin/rake.
I am using capistrano to deploy, including the capistrano/bundler gem. Since the ./bin directory is version controlled in Rails 4, we need to prevent Capistrano from linking it on deployments by removing bin from set :linked_dirs.
Now in order to prevent bundler from overwriting the version controlled binstubs, we can add the line set :bundle_binstubs, nil which will prevent capistrano-bundler from setting the --binstubs option when running bundle install.
My config/deploy.rb file now has these lines:
# Default value for linked_dirs is []
set :linked_dirs, fetch(:linked_dirs, []).push('log', 'tmp/pids', 'tmp/cache', 'tmp/sockets', 'vendor/bundle', 'public/system')
set :bundle_binstubs, nil
Note the lack of the bin directory in the :linked_dirs line.
I have the same problem, and turns out when you deploy through cap shared/bin is symlink to current/bin.
Here's what works for me:
rm current/bin
mkdir current/bin
rake rails:update:bin
This should help, but it is somewhat a temporary solution, I'm trying to find out how to make cap not auto symlink-ing current/bin.
In case of Rails 5.2
I had to remove bin directory by running below command in project root directory.
rm -rf bin
and then I ran another command in project root directory:
rake app:update:bin
It will show you output like below:
create bin
create bin/bundle
create bin/rails
create bin/rake
create bin/setup
create bin/update
create bin/yarn
That's it.
It's been a little while since this was answered.
In my case I needed to run:
rake app:update:bin
Note- app rather than rails.
I was missing the bin directory all-together in my Rails 5.1 App
I faced this issue on my production server when I updated my application from Rails 5.2 to 6.0.4. Simply follow these steps:
cd to_your_project_dir
rm -r bin
rake app:update:bin

rails application command

According to output from "rails" command, there is "rails application" command. When I use it I see the output from "rails new" command.
...
Description:
The 'rails new' command creates a new Rails application with a default
directory structure and configuration at the path you specify.
You can specify extra command-line arguments to be used every time
'rails new' runs in the .railsrc configuration file in your home directory.
Note that the arguments specified in the .railsrc file don't affect the
defaults values shown above in this help message.
Example:
rails new ~/Code/Ruby/weblog
This generates a skeletal Rails installation in ~/Code/Ruby/weblog.
See the README in the newly created application to get going.
Mb I`m doing something wrong? Or these commands do the same?
Sorry for my bad writing.
rails application is not a valid command.
The rails command line tool will print out the man page if an invalid command is given. Most command line tools do the same.
Run rails nonexistent_command and it will print out the man page.
If outside of a rails app, it will print the man page for rails new. If inside a rails app dir, it will print out the other possible commands. e.g rails generate, rails console, etc.

how to use RVM to a ruby app engine?

i wanna make a simple ruby App Engine in rails just like heroku, i'm dealing with a problem now.
My idea was:
1.use rails to establish the App Engine, use a class 'App' to handle all apps.
2.when a user create an ruby app he should offer it's git path
3.when the user deploys it, my app engine will do these things:
clone the git to a path in my server (done
use RVM to designatine the ruby version witch user wanted and make a gemdir for the project (some problems here
create a nginx conf for the project, then include it and reload nginx (i can do it
Problems in the second step:
codes here:
def start_thin
Dir.chdir(proj_path) do
system('rvm use ruby-1.8.7-p352#testname --create')
system('gem env gemdir')
success = system ('thin start -s3 --socket ' + self.proj_sock)
if success
return true
end
end
return false
end
when the code runs here, the log told me "RVM is not a function...blahblah", i know something about the login-shell and non-login-shell, then i try to fix it via editing .bashrc but same problem occurred.
And if i ignore it, the app can't be deployed, because of a Load Error :
myapp.rb:2:in `require': cannot load such file -- sinatra (LoadError)
if i open a terminal in that app directory, i can use thin to start it.
i wanna know how to run cmd just like in a terminal, without all these odd problem?
or how to edit my method to fix it?
Thanks!
Thanks Casper and GhostRider.
The user and rvm settings are correct.
After lots of googles and tests i found it's impossible...
Finally I fixed it by using RVM's ruby api instead of running system command.
Such as :
require 'rvm'
env = RVM.current
env.gemset.create('app1')

How to build and run a Ruby command-line tool found on github?

Hi cloned a simple app ( https://github.com/cfx/twix) on github that allows me to send Twitter messages from the console, but I'm not sure how to run it.
I now have a folder in my users/name director called Twix. Inside twix, I have these folders created by the app.
README Rakefile bin lib test
The readme doesn't provide a lot of instruction to get things started. It just tells you what to do after the program's running (see below).
Questions: What command do I use to get this started? What folder do I need to be in?
The README
Twix 0.0.1
Simple twitter client for console
Keys:
q - quit
t - write new message
If you want to post your twit, finish you message with !SEND
If you want abort and back to your feed, finish your message with !EXIT
new features soon
This program is packaged as a gem. The following command will install the gem (run it in the Twix directory):
rake package && gem install pkg/twix-0.0.1.gem
You can now run the program from anywhere with the twix command.
Edit
The first thing I saw in the repository was the Rakefile, meaning there were some rake tasks defined. When you find yourself in this case, running rake -T is your best bet as it will show you the rake tasks available. Its output was the following:
(in /home/benoit/code/clones/twix)
rake clobber_package # Remove package products
rake gem # Build the gem file twix-0.0.1.gem
rake package # Build all the packages
rake repackage # Force a rebuild of the package files
I picked the command that would be the most likely to build the gem: the package one. I guess the gem task would have worked as well.
Running rake package gave me the following output:
(in /home/benoit/code/clones/twix)
mkdir -p pkg
WARNING: no homepage specified
Successfully built RubyGem
Name: twix
Version: 0.0.1
File: twix-0.0.1.gem
mv twix-0.0.1.gem pkg/twix-0.0.1.gem
All that was left was to install the pkg/twix-0.0.1.gem created by the previous command:
gem install pkg/twix-0.0.1.gem
There's another case you could have encountered: the presence of a twix.gemspec in the root directory of the application. In this case, running:
gem build twix.gemspec
would have built the gem, the installation step remains the same.
ruby ./bin/twix
or
ruby -I lib ./bin/twix

Resources