class Chef::Util::Backup
Attributes
new_resource[R]
path[RW]
Public Class Methods
new(new_resource, path = nil)
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# File lib/chef/util/backup.rb, line 27 def initialize(new_resource, path = nil) @new_resource = new_resource @path = path.nil? ? new_resource.path : path end
Public Instance Methods
backup!()
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# File lib/chef/util/backup.rb, line 32 def backup! if @new_resource.backup != false && @new_resource.backup > 0 && ::File.exist?(path) do_backup # Clean up after the number of backups slice_number = @new_resource.backup backup_files = sorted_backup_files if backup_files.length >= @new_resource.backup remainder = backup_files.slice(slice_number..-1) remainder.each do |backup_to_delete| delete_backup(backup_to_delete) end end end end
Private Instance Methods
backup_filename()
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# File lib/chef/util/backup.rb, line 49 def backup_filename @backup_filename ||= begin time = Time.now nanoseconds = sprintf("%6f", time.to_f).split(".")[1] savetime = time.strftime("%Y%m%d%H%M%S.#{nanoseconds}") backup_filename = "#{path}.chef-#{savetime}" backup_filename = backup_filename.sub(/^([A-Za-z]:)/, "") # strip drive letter on Windows end end
backup_path()
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# File lib/chef/util/backup.rb, line 66 def backup_path @backup_path ||= ::File.join(prefix, backup_filename) end
delete_backup(backup_file)
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# File lib/chef/util/backup.rb, line 76 def delete_backup(backup_file) FileUtils.rm(backup_file) Chef::Log.info("#{@new_resource} removed backup at #{backup_file}") end
do_backup()
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# File lib/chef/util/backup.rb, line 70 def do_backup FileUtils.mkdir_p(::File.dirname(backup_path)) if Chef::Config[:file_backup_path] FileUtils.cp(path, backup_path, preserve: true) Chef::Log.info("#{@new_resource} backed up to #{backup_path}") end
prefix()
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# File lib/chef/util/backup.rb, line 59 def prefix # if :file_backup_path is nil, we fallback to the old behavior of # keeping the backup in the same directory. We also need to to_s it # so we don't get a type error around implicit to_str conversions. @prefix ||= Chef::Config[:file_backup_path].to_s end
sorted_backup_files()
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# File lib/chef/util/backup.rb, line 89 def sorted_backup_files unsorted_backup_files.sort { |a, b| b <=> a } end
unsorted_backup_files()
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# File lib/chef/util/backup.rb, line 81 def unsorted_backup_files # If you replace this with Dir[], you will probably break Windows. fn = Regexp.escape(::File.basename(path)) Dir.entries(::File.dirname(backup_path)).select do |f| !!(f =~ /\A#{fn}.chef-[0-9.]*\B/) end.map { |f| ::File.join(::File.dirname(backup_path), f) } end