红宝石要求不工作 [英] ruby require not working

问题描述

我是红宝石的新手，但是我正在开发我的第一个红宝石程序.它目前有两个文件，一个是函数库(xgync.rb存储在lib中)，另一个是可执行文件xgync存储在"bin"中. (在此处 https://bitbucket.org/jeffreycwitt/xgync/src 可见的项目)还创建了到我的/usr/local/bin/xgync的符号链接，以便我可以从终端的任何位置编写命令xgync {arguments}.

I'm new to ruby, but I'm working on my first ruby program. It currently has two files, one is a library of functions (xgync.rb stored in lib) the other is the executable xgync stored in 'bin'. (Project visible here https://bitbucket.org/jeffreycwitt/xgync/src) I've also created a symlink to my /usr/local/bin/xgync so that I can write the command xgync {arguments} from anywhere in the terminal.

问题似乎是bin/xgync依赖于库lib/xgync.rb.我在bin/xgync中将这种依赖关系编写如下:

The problem seems to be that bin/xgync depends on the library lib/xgync.rb. I've written this dependency in bin/xgync as follows:

$:.unshift(File.dirname(__FILE__) + '/../lib')
require "xgync"

但是，我不断收到以下错误消息:

However, i keep getting the following error:

/Users/JCWitt/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- xgync (LoadError)
from /Users/JCWitt/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from /usr/local/bin/xgync:4:in `<main>'

您看到我写的东西有什么问题吗?符号链接会以某种方式弄乱东西吗?

can you see anything wrong with what I've written? Could the symlink be somehow messing things up?

感谢您的帮助:)

推荐答案

使用 ruby​​ 1.9.x 时，在项目中需要其他文件时，通常不会使用$:.unshift更改路径

When using ruby 1.9.x you don't usually alter the path with the $:.unshift when requiring other files in your project.

相反，最佳做法是改用require_relative.

Instead the best practice is to use require_relative instead.

require_relative '../lib/xgync.rb'

require_relative需要相对于您当前正在编辑的文件的文件.

require_relative requires files relative to the file you are currently editing.

但是出现错误，因为您需要一个不存在的文件:

But the error you experience appears, because you require a file, which does not exist:

• bin/xgync
• lib/xgync.rb

• bin/xgync
• lib/xgync.rb

根据您的问题，这些是项目中的文件，并且代码摘录来自 bin/xgync ，您扩展了路径以在 lib/中查找文件但是您尝试使用require 'xgync'这是一个文件，而该文件在 lib/中不存在，因此，如果要使用此方法(必须使用require 'xgync.rb'来代替require_relative.

These are the files in your project according to your question, and the code-excerpt is from bin/xgync you extended the path to look for files in lib/ but you try to require 'xgync' which is a file, that is not present in lib/, so if you wanted to use this method (instead of require_relative you would have to use require 'xgync.rb'.

这篇关于红宝石要求不工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！