How do I parse a YAML file in Ruby?
Maybe I'm missing something, but why try to parse the file? Why not just load the YAML and examine the object(s) that result?
If your sample YAML is in some.yml, then this:
require 'yaml'thing = YAML.load_file('some.yml')puts thing.inspectgives me
{"javascripts"=>[{"fo_global"=>["lazyload-min", "holla-min"]}]}
I had the same problem but also wanted to get the content of the file (after the YAML front-matter).
This is the best solution I have found:
if (md = contents.match(/^(?<metadata>---\s*\n.*?\n?)^(---\s*$\n?)/m)) self.contents = md.post_match self.metadata = YAML.load(md[:metadata])endSource and discussion: https://practicingruby.com/articles/tricks-for-working-with-text-and-files
Here is the one liner i use, from terminal, to test the content of yml file(s):
$ ruby -r yaml -r pp -e 'pp YAML.load_file("/Users/za/project/application.yml")'{"logging"=> {"path"=>"/var/logs/", "file"=>"TacoCloud.log", "level"=> {"root"=>"WARN", "org"=>{"springframework"=>{"security"=>"DEBUG"}}}}}