ruby - nconf.js 像 gem 一样用于 ruby​​ 配置

Question

我正在用 ruby​​ 构建一个 cli 工具，我需要从不同的来源获取配置:环境变量、点文件、参数或硬编码值。 (有优先系统)

在 node.js 中我会使用 nconf.js , 做到这一点。

在 ruby​​ 中是否有一些配置 gem 可以做这样的事情？

Answer 1

实际答案是这样的:

更新时间:2020-02-26

https://github.com/infochimps-labs/configliere

引用作者的话:

Be willing to sit down with the Five Families. Takes settings from (at your option):

• Pre-defined defaults from constants
• Simple config files
• Environment variables
• Commandline options and git-style command runners
• Ruby block (called when all other options are in place)

简而言之。就像 nconf 一样。

require 'configliere'

Settings.use :commandline
Settings({
    :dest_time => '11-05-1955',
    :fluxcapacitor => {
        :speed => 88,
    },
    :delorean => {
        :power_source => 'plutonium',
        :roads_needed => true,
    },
    :username => 'marty',
    :password => '',
})

#set a value to possibly also come from env
Settings.define :dest_time,   :env_var => 'DEST_TIME'

Settings.read "#{__dir__}/config.yml"
Settings.read "#{Dir.pwd()}/config.yml"
Settings.resolve!

旧答案:

https://github.com/rubyconfig/config#working-with-environment-variables

它不执行 argv，但它允许您对各种 yaml 文件进行分层，然后使用 ENV 覆盖，就像 nconf 允许的那样。