Module: MadbitConfig

Defined in:
lib/jirarest2/madbitconfig.rb

Overview

Module to handle configuration files

Defined Under Namespace

Classes: FileExistsException

Class Method Summary collapse

Class Method Details

.read_configfile(config_file, whitespace = false) ⇒ Hash

reads a config-file and returns a hash The config file can either contain key = value pairs or JSON data JSON and simple “key = valuen” lines work TODO make it work with “key = [value,value]n” or even “key = value1 n value2 n …”

Parameters:

  • config_file (String)
  • whitespace (Boolean) (defaults to: false) —

    Keep whitespace characters?

Returns:

  • (Hash) —

    Hash configparameters

Raises:

  • (IOError) —

    Raised if the file indicated by config_file is not found



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# File 'lib/jirarest2/madbitconfig.rb', line 37

def self.read_configfile(config_file,whitespace = false)
  if whitespace then    
    regexp = Regexp.new(/"|\[|\]/)
  else
    regexp = Regexp.new(/\s+|"|\[|\]/)
  end
  
  temp = Array.new
  vars = Hash.new
  file = String.new

  if config_file == "-" then
    # caller wants STDIN
    file = ARGF.read
  else
    # caller wants real file
    config_file = File.expand_path(config_file)
    unless File.exists?(config_file) then
      raise IOError, "Unable to find config file \"#{config_file}\""
    end
    file = IO.read(config_file)
  end
  if file =~ /^\s*{/ then
    vars = JSON.parse(file)
  else
    file.each_line { |line|
      if line.match(/^\s*#/) #  don't care about lines starting with an # (even after whitespace)
        next
      elsif line.match(/^\s*$/) # no text, no content
        next
      else
        # Right now I don't know what to use scan for. It will escape " nice enough. But once that is excaped the regexp doesn't work any longer.
        temp[0],temp[1] = line.to_s.scan(/^.*$/).to_s.split("=")
        #temp[0],temp[1] = line.to_s.split("=")
        temp.collect! { |val|
          val.gsub(regexp, "")
        }
        vars[temp[0]] = temp[1]
      end
    }
  end # JSON or not?
  return vars
end

.write_configfile(config_file, configoptions, save = :noforce) ⇒ Object

write a configfile

Parameters:

  • config_file (String) —

    Name (and path) of the config file

  • configoptions (Hash) —

    Hash of “option” => “value” pairs

  • save (Symbol) (defaults to: :noforce) —

    Determines if an existing file is to be kept. :force replaces an existing file

Raises:

  • (FileExistsException) —

    Raised if the file that is to be written already exists and the overwrite flag (save) is not set to :force



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# File 'lib/jirarest2/madbitconfig.rb', line 87

def self.write_configfile(config_file, configoptions, save = :noforce)
  config_file = File.expand_path(config_file) # Be save
  
  # First we make sure we don't overwrite a file if the save - flag is set.
  if save != :force then
    if File.exists?(config_file) then
      raise FileExistsException, config_file
    end
  end
  # write the file
  File.open(config_file, File::CREAT|File::TRUNC|File::RDWR,0600) { |f|
    configoptions.each { |option,value|
      f.write( option + " = " + value  + "\n")
    }
  } # File
end