我可以让 Ruby on Rails 控制台记住我的命令历史，嗯，更好吗? [英] Can I get the Ruby on Rails console to remember my command history, umm, better?

问题描述

我在 Ruby on Rails 3.1.1 中使用控制台，我发现它的命令历史记录(向上箭头)非常不稳定.我今天在多个控制台会话中多次运行命令 p = Product.by_name 'Acme' 和 p.add_search_term('Snipe').

I'm using the console in Ruby on Rails 3.1.1, and I'm finding its command history (up arrow) to be really flaky. I've run the commands p = Product.by_name 'Acme' and p.add_search_term('Snipe') several times today, across several console sessions.

然而，当我重新加载 Ruby on Rails 控制台时，我的命令历史中只显示第一个，而不是第二个.有时，在我重新加载控制台后，它们都在历史记录中.最重要的是，我在我的历史记录中看到了几天前按下向上箭头几次后的命令.我需要更改某种配置还是这是一个错误?

Yet, when I reload the Ruby on Rails console, only the first one shows in my command history, not the second. Sometimes they are both there in the history after I reload the console. On top of that, I see commands in my history that are from several days ago after pressing up arrow only a few times. Is there some sort of configuration that I need to change or is this a bug?

• Ruby on Rails 3.1.1`
• Ruby 1.9.2p290`
• Ubuntu 11.10`

推荐答案

来自 如何 - 退出后保留 Rails 或 IRB 控制台命令历史.

创建或编辑您的 ~/.irbrc 文件以包含:

Create, or edit your ~/.irbrc file to include:

require 'irb/ext/save-history'
IRB.conf[:SAVE_HISTORY] = 200
IRB.conf[:HISTORY_FILE] = "#{ENV['HOME']}/.irb-history"

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