As the question states, where is the Rakefile in a Railsapp?
In my app it is no where to be found. I'm working on an app with another developer and he's just pushed code to the Rakefile as such:
7 Rakefile
## -0,0 +1,7 ##
+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require File.expand_path('../config/application', __FILE__)
+require 'rake'
+
+Newapp::Application.load_tasks
Although, I can't find this code anywhere in the actual app. Please help clear this up for me!
Thanks!
Conventionally, the Rakefile usually goes at the Rails root of your project (this is the location first generated when you ran rails new ...).
rake can also be run by using a Rakefile anywhere, by using rake -f path/to/my/rakefile.rb, so if you need to diverge from the convention for some reason, that's possible too.
However, note that many third-party services presume that it's possible to run rake from the root of your project and get the desired result (e.g. heroku rake).
Related
I have some rake tasks that I only perform locally. However since I refer to the some gem classes in rake tasks, this seems to require that the gem be installed and loaded on the production server. Among other things this increases deploy time and memory usage on the server.
This may or may not have to do with my setting:
config.autoload_paths += Dir["#{config.root}/lib/**/"]
I have a number of lib files and subdirectories.
I guess my options are to
move all my lib files somewhere else and add that path to autoload_paths
try to exclude the tasks dir from autoload_paths
do something fancy in the rake tasks themselves (if possible) to avoid the need to have the gems present.
configure rake tasks to live somewhere else (seems like a bad idea)
This seems like a pretty common issue and probably has a common way to solve it or avoid it. What am I missing?
Maybe not the most exciting answer but I just moved the require 'dev_gem' inside the rake task block for that task.
namespace :elasticbeanstalk do
desc 'Creates a new web & worker environment pair for testing'
task :create do
require 'aws-sdk-elasticbeanstalk'
# Do stuff with beanstalk that we wouldn't from a production env
end
end
This way the library only gets loaded when the rake task is invoked rather than when the rake task is defined.
doing something like this may work
require "prod_gem_name"
unless Rails.env.production?
require 'dev_gem_name'
desc "Task that run something with a dev gem"
# code that uses the gem on dev group
end
or another solution maybe will be to add those .rake files to the gitignore. maybe it wouldn't work on all cases but it's another option.
In a fresh(ish) rails project, the Rakefile looks like this:
# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
require File.expand_path('../config/application', __FILE__)
Blog::Application.load_tasks
Yet rake routes produces the following output:
cpe-74-72-73-47:rails-blog-example djechlin$ rake routes
home_index GET /home/index(.:format) home#index
root / home#index
I don't understand how rake works so that it can get to the routes file or the routes task. Per the command line usage documentation, rake is invoked as
rake [options ...] [VAR=VALUE ...] [targets ...]
But the page has no explanation of what the targets are. I assume rake is called directly on the routes.rb file from this and that Rakefile is not related, but I can't confirm this at all.
A Rakefile contains executable Ruby code. Anything legal in a ruby script is allowed in a Rakefile.
When you trigger rake routes you call this piece of Ruby code .
Actually, the Rakefile is very related, and rake isn't called directly on routes.rb at all. Rake needs a rakefile. The magic happens inside load_tasks, which load the numerious Rails-specific Rake tasks that come with the framework.
When you invoke Rake, it looks for a Rakefile. The Rakefile is just Ruby. In your default Rakefile, first it includes ../config/application, where your application class (Blog::Application) is defined; then it invokes load_tasks, which is provided by Rails::Application, from which your Blog::Application inherits.
From there there are a million ways for each part of Rails to make Rake tasks available. Typically the core libraries provide Rail ties which expose tasks.
Hey people i know maybe 1% of ruby and need many help...
I migrated a system from one server to another server
When I try to insert an entry to the database using the system, I get the following error (remembering that I use ruby is 2.1):
undefined method `insert_record' for #<Array:0x007fec2a2b2fa0>
i know maybe this is a solution:
http://alok-anand-ror.blogspot.com.br/2013/11/undefined-method-insertrecord-for.html
i have gems of rake instaled 0.9.2 and 0.9.2.2
when i try run "rake db:migrate" (I think it would solve, I do not know) i received
rake aborted No rake file found
if somebody can help me I greatly appreciate.
thanks in advanced.
it seems your Rakefile is missing .
Check your rails folder should contain Rakefile with following content
#!/usr/bin/env rake
# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
require File.expand_path('../config/application', __FILE__)
Demo::Application.load_tasks
~
and
undefined method `insert_record' for #<Array:0x007fec2a2b2fa0>
this error is because of incompatibility issues with rails and ruby , try upgrading rails
So, the title is quite self explanatory, but here's the following ..
rake db:create
rake aborted!
No rakefile found (looking for: rakefile, Rakefile, rakefile.rb, Rakefile.rb)
Any help would be appreciated.
What is your current working directory when calling the rake db:create command? Are you in the root of the Rails app?
You have to be in the root of the Rails app that you are creating.
Currently you must be one step up.
Case I:
Check out your directory. If you are in same directory where your application is available then you wont' get is this message. You are getting this message because you are out of your application directory. To check you present directory you can use this command
pwd
Case II
You might missing your Rakefile. Check it out in your directory. For example,
$ ls
app/
bin/
config/
db/
...
If you don't find Rakefile then create new one. Puts this code
# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
require File.expand_path('../config/application', __FILE__)
Blog::Application.load_tasks
I am using Ruby on Rails and I see a 'Rakefile' in my application's root directory. What is its purpose and when will it get executed?
The Rakefile is a ruby-written file which contains the definition of Rake tasks.
Here you can find a small introduction to Rake.
The Rakefile can include other Ruby files. This is the case of Rails projects.
In fact, in a Rails project you shouldn't change the Rakefile directly. Instead, you can add more rake tasks by creating .rake files in the lib/tasks folder of your Rails project.
It contains several pre-defined actions (named tasks) that you could perform on the Rails project. If you run rake -T, it will show you a list of all available tasks. That will provide you with more info.