linux 运行轨道转轮与一些参数

hs1rzwqc  于 2023-06-21  发布在  Linux
关注(0)|答案(3)|浏览(99)

这个命令是我的问题:

/usr/local/bin/ruby **script/runner** --environment=production app/jobs/**my_job.rb** -t my_arg

`my_job.rb` is my script, which handles command line arguments. In this case it is `-t my_arg`.

my_job.rb也以`--environment=production'作为参数,应该是script/runner的参数。
我想这可以用一些括号来解决,但没有一个想法。
如果解决方案不涉及(或不依赖于)Rails或Linux的全局环境,那就更好了。

/usr/local/lib/ruby/1.8/optparse.rb:1450:in `complete': invalid option: --environment=production (OptionParser::InvalidOption)
  from /usr/local/lib/ruby/1.8/optparse.rb:1448:in `catch'
  from /usr/local/lib/ruby/1.8/optparse.rb:1448:in `complete'
  from /usr/local/lib/ruby/1.8/optparse.rb:1261:in `parse_in_order'
  from /usr/local/lib/ruby/1.8/optparse.rb:1254:in `catch'
  from /usr/local/lib/ruby/1.8/optparse.rb:1254:in `parse_in_order'
  from /usr/local/lib/ruby/1.8/optparse.rb:1248:in `order!'
  from /usr/local/lib/ruby/1.8/optparse.rb:1339:in `permute!'
  from /usr/local/lib/ruby/1.8/optparse.rb:1360:in `parse!'
  from app/jobs/2new_error_log_rt_report.rb:12:in `execute'
  from app/jobs/2new_error_log_rt_report.rb:102
  from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `eval'
  from /home/www/maldive/admin/releases/20120914030956/vendor/rails/railties/lib/commands/runner.rb:46
  from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
  from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
  from script/runner:3
bq3bfh9z

bq3bfh9z1#

script/runner不接受文件的路径,而是接受它将要执行的一些Ruby:

script/runner "MyClass.do_something('my_arg')"

您可以使用环境变量设置Rails环境,例如:

RAILS_ENV=production script/runner "MyClass.do_something('my_arg')"

如果你想运行一些复杂的任务,你最好把它写成一个Rake任务。例如,您可以创建文件lib/tasks/foo.rake

namespace :foo do
  desc 'Here is a description of my task'
  task :bar => :environment do
    # Your code here
  end
end

您可以使用以下命令执行此操作:

rake foo:bar

script/runner一样,您可以使用环境变量设置环境:

RAILS_ENV=production rake foo:bar

也可以是pass arguments to a Rake task

dwthyt8l

dwthyt8l2#

我假设你使用的是基于script/runner的旧版Rails,我不知道这是否适用于旧版Rails,但在新版Rails中,你可以只使用require 'config/environment',它就会加载应用程序。然后你就可以在里面写剧本了。
例如,我有一个脚本,它接受一个参数,如果提供了参数,则将其打印出来,然后打印出我的应用中有多少用户:
文件:app/jobs/my_job.rb

require 'optparse'

parser = OptionParser.new do |options|
  options.on '-t', '--the-arg SOME_ARG', 'Shows that we can take an arg' do |arg|
    puts "THE ARGUMENT WAS #{arg.inspect}"
  end
end

parser.parse! ARGV

require_relative '../../config/environment'

puts "THERE ARE #{User.count} USERS" # I have a users model

不带args的调用:

$ be ruby app/jobs/my_job.rb 
THERE ARE 2 USERS

使用arg速记调用:

$ be ruby app/jobs/my_job.rb -t my_arg
THE ARGUMENT WAS "my_arg"
THERE ARE 2 USERS

用arg long-hand调用:

$ be ruby app/jobs/my_job.rb --the-arg my_arg
THE ARGUMENT WAS "my_arg"
THERE ARE 2 USERS
xzabzqsa

xzabzqsa3#

只需使用以下语法:

rails runner <.rb file path> [..args]

您的ruby文件将接收ARGV变量中的参数,该变量的类型为数组。

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