class Xlsxrb::Ooxml::ZipGenerator

Generates a simple ZIP file using only the standard library.

Public Class Methods

(Time time) → Array[Integer]

Source

# File lib/xlsxrb/ooxml/zip_generator.rb, line 57
def self.dos_datetime(time)
  dos_date = ((time.year - 1980) << 9) + (time.month << 5) + time.day
  dos_time = (time.hour << 11) + (time.min << 5) + (time.sec / 2)
  le16(dos_time) + le16(dos_date)
end

Returns MS-DOS format datetime byte array (little-endian 16-bit time + date).

@param time [Time] @return [Array<Integer>]

le16 (value)

(Integer value) → Array[Integer]

Source

# File lib/xlsxrb/ooxml/zip_generator.rb, line 42
def self.le16(value)
  [value].pack("v").bytes
end

Returns little-endian 16-bit unsigned integer as an Array of byte values.

le32 (value)

(Integer value) → Array[Integer]

Source

# File lib/xlsxrb/ooxml/zip_generator.rb, line 48
def self.le32(value)
  [value].pack("V").bytes
end

Returns little-endian 32-bit unsigned integer as an Array of byte values.

new (filepath)

(untyped filepath) → untyped

Source

# File lib/xlsxrb/ooxml/zip_generator.rb, line 11
def initialize(filepath)
  @filepath = filepath
  @entries = []
  @file = nil
end

Public Instance Methods

add_entry (filepath, content)

(untyped filepath, untyped content) → untyped

Source

# File lib/xlsxrb/ooxml/zip_generator.rb, line 18
def add_entry(filepath, content)
  compressed_data = compress(content)
  @entries << {
    path: filepath,
    content: content,
    compressed_data: compressed_data,
    crc32: crc32(content),
    uncompressed_size: content.bytesize,
    compressed_size: compressed_data.bytesize,
    mtime: Time.now
  }
end

Adds an entry to the ZIP archive.

generate ()

() → untyped

Source

# File lib/xlsxrb/ooxml/zip_generator.rb, line 32
def generate
  File.open(@filepath, "wb") do |f|
    @file = f
    write_entries
    write_central_directory
  end
end

Generates the ZIP file.