ruby 脚本 : undefined method `symbolize_keys' error loading YAML files

Question

我有一个用于 yaml 合并的 ruby​​ 脚本，如下所示

#!/usr/bin/env ruby

require 'yaml'

raise "wrong number of parameters" unless ARGV.length == 2

y1 = YAML.load_file(ARGV[0]).symbolize_keys
y2 = YAML.load_file(ARGV[1]).symbolize_keys
puts y1.merge!(y2).to_yaml

当我执行它时:

./test.rb ./src/api/config/config1.yml ./src/api/config/config2.yml

我遇到了以下错误:

./test.rb:5:in `<main>': undefined method `symbolize_keys' for {"root"=>{"cloud.n2"=>{"accessKey"=>"I5VAJUYNR4AAKIZDH777"}}}:Hash (NoMethodError)

Answer 1

Hash#symbolize_keys方法来自 activesupport gem (activesupport/lib/active_support/core_ext/hash/keys.rb)。

为了使用它，您需要在脚本中添加以下行:

require "active_support"