Module: SystemHelper

Defined in:
lib/cartocss_helper/util/systemhelper.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.not_enough_free_space ⇒ Object 



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# File 'lib/cartocss_helper/util/systemhelper.rb', line 33

def self.not_enough_free_space
  minimum_gb = 2
  available_gb = get_available_space_for_cache_in_gb
  if available_gb < minimum_gb
    puts "get_available_space_for_cache_in_gb: #{available_gb}, minimum_gb: #{minimum_gb}"
    return true
  else
    return false
  end
end

Instance Method Details

#check_error_code(command, stderr, status, allowed_return_codes) ⇒ Object

Raises:



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# File 'lib/cartocss_helper/util/systemhelper.rb', line 7

def check_error_code(command, stderr, status, allowed_return_codes)
  returned = status.exitstatus
  return if status.success?
  return if allowed_return_codes.include?(returned)
  explanation = "failed command #{command} due to error code #{returned}. stderr was #{stderr}"
  raise FailedCommandException.new(explanation)
end

#check_stderr(command, stderr, status, ignore_stderr_presence) ⇒ Object

Raises:



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# File 'lib/cartocss_helper/util/systemhelper.rb', line 15

def check_stderr(command, stderr, status, ignore_stderr_presence)
  return if ignore_stderr_presence
  return if stderr == ''
  returned = status.exitstatus
  explanation = "failed command #{command} due to < #{stderr}> on stderr. return code was #{returned}"
  raise FailedCommandException.new(explanation)
end

#delete_file(filename, reason) ⇒ Object 



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# File 'lib/cartocss_helper/util/systemhelper.rb', line 49

def delete_file(filename, reason)
  open(CartoCSSHelper::Configuration.get_path_to_folder_for_output + 'deleting_files_log.txt', 'a') do |file|
    message = "deleting #{filename}, #{File.size(filename) / 1024 / 1024}MB - #{reason}"
    puts message
    file.puts(message)
    File.delete(filename)
  end
end

#execute_command(command, debug = false, allowed_return_codes: [], ignore_stderr_presence: false) ⇒ Object 



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# File 'lib/cartocss_helper/util/systemhelper.rb', line 23

def execute_command(command, debug = false, allowed_return_codes: [], ignore_stderr_presence: false)
  puts command if debug
  stdout, stderr, status = Open3.capture3(command)

  check_error_code(command, stderr, status, allowed_return_codes)
  check_stderr(command, stderr, status, ignore_stderr_presence)

  return stderr + stdout
end

#get_available_space_for_cache_in_gb ⇒ Object 



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# File 'lib/cartocss_helper/util/systemhelper.rb', line 44

def get_available_space_for_cache_in_gb
  stat = Sys::Filesystem.stat(CartoCSSHelper::Configuration.get_path_to_folder_for_cache)
  return stat.block_size * stat.blocks_available / 1024 / 1024 / 1024
end