Question

我正在尝试编写一个rake任务，该任务将设置一个镜像我的项目的环境。

task :environment do 
  require 'rubygems'
  require 'sequel'
  # require 'my_projects_special_files'
end

task :foo => [:environment] do
  require 'irb'
  IRB.start
end

导致irb抱怨“foo”不存在（任务的名称）

10:28:01:irb_test >> rake foo --trace
(in /Users/mwlang/projects/personal/rake/irb_test)
** Invoke foo (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute foo
rake aborted!
No such file or directory - foo
/opt/local/lib/ruby/1.8/irb/input-method.rb:68:in `initialize'
/opt/local/lib/ruby/1.8/irb/input-method.rb:68:in `open'
/opt/local/lib/ruby/1.8/irb/input-method.rb:68:in `initialize'
/opt/local/lib/ruby/1.8/irb/context.rb:80:in `new'
/opt/local/lib/ruby/1.8/irb/context.rb:80:in `initialize'
/opt/local/lib/ruby/1.8/irb.rb:92:in `new'
/opt/local/lib/ruby/1.8/irb.rb:92:in `initialize'
/opt/local/lib/ruby/1.8/irb.rb:57:in `new'
/opt/local/lib/ruby/1.8/irb.rb:57:in `start'
/Users/mwlang/projects/personal/rake/irb_test/Rakefile:9

Answer 1

IRB.start正在查看ARGV，其中包含来自rake命令行的任务名称。首先尝试清除ARGV。

require 'irb'
ARGV.clear
IRB.start

Answer 2

从Ruby 2.4.0开始，你可以这样做：

require 'irb'
binding.irb

Answer 3

显然，您定义任务的方式一定存在问题。如果你改变

会发生什么

task :foo => [:environment] do

到

task :foo => :environment do

Answer 4

我在运行这样的任务时遇到了类似的问题。将其设置为默认任务解决了问题，但它对bug没有帮助。在这里：我做了什么

task :console do
  exec 'irb -I lib -r startingscript.rb'
end

Answer 5

rake文件内容如下，名为Rakefile 使用rake test：console

从终端运行它

require 'rubygems'
require 'rake'

namespace :test do
desc "Test Task"

 desc "Load stuff in IRB."
 task :console do

   exec "irb -r rubygems -r sanitize" #require multiple gems by typing -r gemname

 end

 end

一旦你执行了rake测试：console，irb弹出，你可以通过使用Sanitize的清洁方法看到它的工作原理。
Sanitize.clean“some text”

如何从rake任务启动IRB控制台？

5 个答案: