[SOLVED] ruby parse init file

fritz001 · 10-08-2018, 10:18 AM

Hello,

I'm writing some custom facts for a puppet server.

I need a ruby function for reading a ini file:

eg:

users_prop.cfg

Code:

[user1]
command1 = cmdA
command2 = cmdB
command3 = cmdC

[user2]
command1 = NA

Before someone recommend me : rubygem inifile, puppetmaster + clinets , none of them have internet access, + I've been prohibited to install any 3rd party applications/module from internet w/o special permission, so, I just have to reinvent the wheel...

Any help is appreciated...

grail · 10-09-2018, 06:01 AM

So where are you stuck and what have you written so far?

fritz001 · 10-09-2018, 06:37 AM

Quote:

Originally Posted by grail

So where are you stuck and what have you written so far?

Code:

require 'fileutils'
require 'pp'
s = Hash.new{|h,k| h[k] = ''}

file_contents = File.read('/root/xox')
                        File.readlines('/root/xox').each do |line|
                                line = line.chomp
                                 if (line =~ /^\[(.*)\]\s*$/)
                                        section = $1
                                         next
                                end
                                 if (line =~ /^([^=]+?)\s*=\s*(.*?)\s*$/)
                                        param = $1
                                        val   = $2
                                        s[param]  << val
                                 end
                        end

pp s

but I should get a hash like[ "user1"=> command1 => cmdA ,command2 => cmdB, command3 => cmdC, "user2" =>....]

kind of hash of hashes.

I'm not such a pro in ruby.

fritz001 · 10-09-2018, 10:04 AM

Quote:

Originally Posted by grail

So where are you stuck and what have you written so far?

~~~~~~Solved ~~~~~~~~

Code:

require 'fileutils'
require 'pp'
s = Hash.new{|h,k| h[k] = ''}
@data = {}
section = nil

file_contents = File.read('/root/xox')
                        File.readlines('/root/xox').each do |line|
                                line = line.chomp
                                 if (line =~ /^\[(.*)\]\s*$/)
                                        section = $1
                                        @data[section] = {}
                                         next
                                end
                                 if (line =~ /^([^=]+?)\s*=\s*(.*?)\s*$/)
                                        param, val = line.split(/\s*=\s*/, 2)
                                        var_name = "#{param}".chomp.strip
                                        val      = val.chomp.strip
                                        #s[param]  << val
                                        @data[section][var_name] = val
                                 end
                        end


#pp @data


@data.each do |k,q|
        puts "~~~[ #{k} ]~~~~"
        q.each do |a,b|
                  puts a + "===>"+ b
        end
end

grail · 10-10-2018, 09:00 AM

I am guessing you have lots of left over cruft you haven't trimmed out of this code and perhaps some other code that may need
some of your extra variables or libraries, but this can be trimmed a littler more to be:

Code:

data = {}
section = nil 

File.readlines('/root/xox').each do |line|
  if /^\[(?<user>[^\]]*)/ =~ line
    section = user
    data[section] = {}
  end 
  if /^(?<lhs>[^=]+)\s*=\s*(?<rhs>.*)\s*$/ =~ line
    data[section][lhs] = rhs 
  end 
end

data.each do |k,q|
  puts "~~~[ #{k} ]~~~~"
  q.each do |a,b|
    puts a + "===>"+ b
  end 
end

Seems to produce the same output and you are welcome to take or leave any of the above