{Facter::Util::FileRead} is a utility module intended to provide easily mockable methods that delegate to simple file read methods. The intent is to avoid the need to execute the `cat` system command or `File.read` directly in Ruby, as mocking these behaviors can have wide-ranging effects.
All Facter facts are encouraged to use this method instead of File.read or Facter::Core::Execution#exec('cat …')
@api public
read returns the raw content of a file as a string. If the file does not exist, or the process does not have permission to read the file then nil is returned.
@api public
@param path [String] the path to be read
@return [String, nil] the raw contents of the file or `nil` if the
file cannot be read because it does not exist or the process does not have permission to read the file.
# File lib/facter/util/file_read.rb, line 25 def self.read(path) File.read(path) rescue Errno::ENOENT, Errno::EACCES => detail Facter.debug "Could not read #{path}: #{detail.message}" nil end
# File lib/facter/util/file_read.rb, line 32 def self.read_binary(path) File.open(path, "rb") { |contents| contents.read } end