rake tasks dry up namespace with namespace - ruby-on-rails

Question

I setup a series of custom rake tasks for a project that I am building that are name spaced to placewise. These tasks can be viewed by running rake tasks from the console.
desc 'List all available placewise rake tasks for this application.'
task :tasks do
result = %x[rake -T | sed -n '/placewise:/{/grep/!p;}']
result.each_line do |task|
puts task
end
end
All of these tasks are stored in lib/tasks/placewise and built like so:
namespace :placewise do
namespace :db do
desc "Drop and create the current database, the argument [env] = environment."
task :recreate, [:env] do |t,args|
env = environments(args.env)
msg("Dropping the #{env} database")
shell("RAILS_ENV=#{env} rake db:drop", step: "1/3")
msg("Creating the #{env} database")
shell("RAILS_ENV=#{env} rake db:create", step: "2/3")
msg("Running the #{env} database migrations")
shell("RAILS_ENV=#{env} rake db:migrate", step: "3/3")
end
end
end
A new task, for example may start with the base setup as follows:
namespace :placewise do
namespace :example do
desc "example"
task :example do
end
end
end
As you can see the namespace :placewise do will be replicated each time. I want to keep all of our custom rake tasks in the same group, however, I am curious if there is a way to avoid having to add that namespace to each .rake file?
Cheers.

Answer 1

Unfortunately I was advised against this strategy and in the process of discovery I found out my helper methods were not setup correctly. So here goes.
I created a new modules folder in lib/modules with the new helper_functions.rb file inside that directory. Here are my helpers:
module HelperFunctions
# ------------------------------------------------------------------------------------
# Permitted environments
# ------------------------------------------------------------------------------------
def environments(arg)
arg = arg || "development"
environments = ["development", "test", "production"]
if environments.include?(arg)
puts
msg("Environment parameter is valid")
return arg
else
error("Invalid environment parameter")
exit
end
end
# ------------------------------------------------------------------------------------
# Console message handler
# ------------------------------------------------------------------------------------
def msg(txt, periods: "yes", new_line: "yes")
txt = txt + "..." if periods == "yes"
puts "===> " + txt
puts if new_line == "yes"
end
def error(reason)
puts "**** ERROR! ABORTING: " + reason + "!"
end
# ------------------------------------------------------------------------------------
# Execute Shell Commands
# ------------------------------------------------------------------------------------
def shell(cmd, step: nil)
msg("Starting step #{step}", new_line: "no") if step.present?
if ENV['TRY']
puts "-->> " + cmd
else
sh %{#{cmd}}
end
msg("#{step} completed!", periods: "no")
end
end
Then in the Rakefile add:
# Shared Ruby functions used in rake tasks
require File.expand_path('../lib/modules/helper_functions', __FILE__)
include HelperFunctions
Rails.application.load_tasks
# Do not add other tasks to this file, make files in the primary lib/tasks dir ending in .rake
# All placewise tasks should be under the lib/tasks/placewise folder and end in .rake
desc 'List all available placewise rake tasks for this application.'
task :tasks do
result = %x[rake -T | sed -n '/placewise:/{/grep/!p;}']
result.each_line do |task|
puts task
end
end
And finally my .rake tasks look like:
namespace :placewise do
# ------------------------------------------------------------------------------------
namespace :db do
# ------------------------------------------------------------------------------------
desc "Drop and create the current database, the argument [env] = environment."
task :recreate, [:env] do |t,args|
env = HelperFunctions::environments(args.env)
HelperFunctions::msg("Dropping the #{env} database")
HelperFunctions::shell("RAILS_ENV=#{env} rake db:drop", step: "1/3")
HelperFunctions::msg("Creating the #{env} database")
HelperFunctions::shell("RAILS_ENV=#{env} rake db:create", step: "2/3")
HelperFunctions::msg("Running the #{env} database migrations")
HelperFunctions::shell("RAILS_ENV=#{env} rake db:migrate", step: "3/3")
end
# ------------------------------------------------------------------------------------
end
# ------------------------------------------------------------------------------------
end