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How do I pass arguments from the parent task to the child task in Rake?


How do I pass arguments from the parent task to the child task in Rake?

By : user3861909
Date : November 21 2020, 07:01 PM
I wish this helpful for you I can actually think of three ways for passing arguments between Rake tasks.
code :


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How do you pass arguments to a rake task in RubyMine 3.0?

How do you pass arguments to a rake task in RubyMine 3.0?


By : user2781020
Date : March 29 2020, 07:55 AM
it helps some times This is a bug in RubyMine. See Issue #8527 at jetbrains.net
jruby pass jvm arguments to rake task

jruby pass jvm arguments to rake task


By : user3022644
Date : March 29 2020, 07:55 AM
wish helps you How do i pass jvm arguments like Xmx to a rake task in jruby? Am using rvm and running the rake task "rake db:migrate". , Found it!
code :
jruby -J-Xmx2048m -S /home/prats/.rvm/gems/jruby-1.6.1@myapp/bin/rake db:migrate
How do I pass an argument from a child task to a parent task in Rake

How do I pass an argument from a child task to a parent task in Rake


By : user6535355
Date : March 29 2020, 07:55 AM
help you fix your problem Not sure if you can set or pass a parameter, but you can use instance variables:
code :
task :first_task  => :dep do
   puts "something else"
   puts @dir
end

task :dep do
  puts "something"
  @dir = "Foo"
end
dir = "default_dir"

task :first_task  => :dep do
   puts "something else"
   puts dir
end

task :dep do
  puts "something"
  dir = "Foo"
end
task :first_task  => :dep do
   puts "something else"
   puts ENV['dir']
end

task :dep do
  puts "something"
  ENV['dir'] = "Foo"
end
Pass arguments to Rake default task without specifying task name

Pass arguments to Rake default task without specifying task name


By : tkordjuriya
Date : March 29 2020, 07:55 AM
hop of those help? If you look at the rake source code, you can see that it is not possible (GitHub):
code :
# Collect the list of tasks on the command line.  If no tasks are
# given, return a list containing only the default task.
# Environmental assignments are processed at this time as well.
def collect_tasks
  @top_level_tasks = []
  ARGV.each do |arg|
    if arg =~ /^(\w+)=(.*)$/m
      ENV[$1] = $2
    else
      @top_level_tasks << arg unless arg =~ /^-/
    end
  end
  @top_level_tasks.push(default_task_name) if @top_level_tasks.empty?
end
How do I pass environmental variables to a Rake task invoked from another Rake task?

How do I pass environmental variables to a Rake task invoked from another Rake task?


By : Den
Date : March 29 2020, 07:55 AM
like below fixes the issue I have three Rake tasks invoked from another Rake task. The first Rake task requires that an environmental variable is set before it is executed.
code :
ENV['EXAMPLE'] = 'something'
Rake::Task['db:rebuild'].invoke
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