Class: Omnizip::Formats::SevenZip::SplitArchiveWriter

Inherits:
Object
  • Object
show all
Includes:
Constants
Defined in:
lib/omnizip/formats/seven_zip/split_archive_writer.rb

Overview

Split archive writer for .7z format Creates multi-volume archives with size limits

Defined Under Namespace

Classes: VolumeInfo

Constant Summary

Constants included from Constants

Constants::MAJOR_VERSION, Constants::MAX_NUM_BONDS, Constants::MAX_NUM_CODERS, Constants::MAX_NUM_PACK_STREAMS, Constants::MINOR_VERSION, Constants::SIGNATURE, Constants::SIGNATURE_SIZE, Constants::START_HEADER_SIZE

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(base_path, options = {}, split_options = nil) ⇒ SplitArchiveWriter

Initialize writer

Parameters:

  • base_path (String) —

    Base path (e.g., "backup.7z.001")

  • options (Hash) (defaults to: {}) —

    Compression options

  • split_options (Models::SplitOptions) (defaults to: nil) —

    Split configuration



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# File 'lib/omnizip/formats/seven_zip/split_archive_writer.rb', line 30

def initialize(base_path, options = {}, split_options = nil)
  @base_path = base_path
  @options = {
    algorithm: :lzma2,
    level: 5,
    solid: true,
    filters: [],
  }.merge(options)
  @split_options = split_options || Models::SplitOptions.new
  @split_options.validate!
  @collector = FileCollector.new
  @entries = []
  @volumes = []
  @current_volume = nil
  @current_volume_number = 1
  @global_offset = 0
end

Instance Attribute Details

#base_path ⇒ Object (readonly)

Returns the value of attribute base_path.



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# File 'lib/omnizip/formats/seven_zip/split_archive_writer.rb', line 11

def base_path
  @base_path
end

#entries ⇒ Object (readonly)

Returns the value of attribute entries.



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# File 'lib/omnizip/formats/seven_zip/split_archive_writer.rb', line 11

def entries
  @entries
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/omnizip/formats/seven_zip/split_archive_writer.rb', line 11

def options
  @options
end

#split_options ⇒ Object (readonly)

Returns the value of attribute split_options.



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# File 'lib/omnizip/formats/seven_zip/split_archive_writer.rb', line 11

def split_options
  @split_options
end

#volumes ⇒ Object (readonly)

Returns the value of attribute volumes.



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# File 'lib/omnizip/formats/seven_zip/split_archive_writer.rb', line 11

def volumes
  @volumes
end

Instance Method Details

#add_directory(dir_path, recursive: true) ⇒ Object

Add directory to archive

Parameters:

  • dir_path (String) —

    Path to directory

  • recursive (Boolean) (defaults to: true) —

    Add contents recursively



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# File 'lib/omnizip/formats/seven_zip/split_archive_writer.rb', line 61

def add_directory(dir_path, recursive: true)
  @collector.add_path(dir_path, recursive: recursive)
end

#add_file(file_path, archive_path = nil) ⇒ Object

Add file to archive

Parameters:

  • file_path (String) —

    Path to file

  • archive_path (String, nil) (defaults to: nil) —

    Path in archive



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# File 'lib/omnizip/formats/seven_zip/split_archive_writer.rb', line 52

def add_file(file_path, archive_path = nil)
  @collector.add_path(file_path, archive_path: archive_path,
                                 recursive: false)
end

#add_files(pattern) ⇒ Object

Add files matching glob pattern

Parameters:

  • pattern (String) —

    Glob pattern



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# File 'lib/omnizip/formats/seven_zip/split_archive_writer.rb', line 68

def add_files(pattern)
  @collector.add_glob(pattern)
end

#write ⇒ Object

Write split archive

Raises:

  • (RuntimeError) —

    on write error



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# File 'lib/omnizip/formats/seven_zip/split_archive_writer.rb', line 75

def write
  # Collect files
  @entries = @collector.collect_files

  # Determine spanning strategy
  if @split_options.span_strategy == Omnizip::Models::SplitOptions::STRATEGY_BALANCED
    write_balanced
  else
    write_first_fit
  end
end