godot/modules/zip/doc_classes/ZIPPacker.xml

<?xml version="1.0" encoding="UTF-8" ?>
<class name="ZIPPacker" inherits="RefCounted" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../doc/class.xsd">
	<brief_description>
		Allows the creation of ZIP files.
	</brief_description>
	<description>
		This class implements a writer that allows storing the multiple blobs in a ZIP archive. See also [ZIPReader] and [PCKPacker].
		[codeblock]
		# Create a ZIP archive with a single file at its root.
		func write_zip_file():
			var writer = ZIPPacker.new()
			var err = writer.open("user://archive.zip")
			if err != OK:
				return err
			writer.start_file("hello.txt")
			writer.write_file("Hello World".to_utf8_buffer())
			writer.close_file()

			writer.close()
			return OK
		[/codeblock]
	</description>
	<tutorials>
	</tutorials>
	<methods>
		<method name="close">
			<return type="int" enum="Error" />
			<description>
				Closes the underlying resources used by this instance.
			</description>
		</method>
		<method name="close_file">
			<return type="int" enum="Error" />
			<description>
				Stops writing to a file within the archive.
				It will fail if there is no open file.
			</description>
		</method>
		<method name="open">
			<return type="int" enum="Error" />
			<param index="0" name="path" type="String" />
			<param index="1" name="append" type="int" enum="ZIPPacker.ZipAppend" default="0" />
			<description>
				Opens a zip file for writing at the given path using the specified write mode.
				This must be called before everything else.
			</description>
		</method>
		<method name="start_file">
			<return type="int" enum="Error" />
			<param index="0" name="path" type="String" />
			<description>
				Starts writing to a file within the archive. Only one file can be written at the same time.
				Must be called after [method open].
			</description>
		</method>
		<method name="write_file">
			<return type="int" enum="Error" />
			<param index="0" name="data" type="PackedByteArray" />
			<description>
				Write the given [param data] to the file.
				Needs to be called after [method start_file].
			</description>
		</method>
	</methods>
	<members>
		<member name="compression_level" type="int" setter="set_compression_level" getter="get_compression_level" default="-1">
			The compression level used when [method start_file] is called. Use [enum ZIPPacker.CompressionLevel] as a reference.
		</member>
	</members>
	<constants>
		<constant name="APPEND_CREATE" value="0" enum="ZipAppend">
			Create a new zip archive at the given path.
		</constant>
		<constant name="APPEND_CREATEAFTER" value="1" enum="ZipAppend">
			Append a new zip archive to the end of the already existing file at the given path.
		</constant>
		<constant name="APPEND_ADDINZIP" value="2" enum="ZipAppend">
			Add new files to the existing zip archive at the given path.
		</constant>
		<constant name="COMPRESSION_DEFAULT" value="-1" enum="CompressionLevel">
			Start a file with the default Deflate compression level ([code]6[/code]). This is a good compromise between speed and file size.
		</constant>
		<constant name="COMPRESSION_NONE" value="0" enum="CompressionLevel">
			Start a file with no compression. This is also known as the "Store" compression mode and is the fastest method of packing files inside a ZIP archive. Consider using this mode for files that are already compressed (such as JPEG, PNG, MP3, or Ogg Vorbis files).
		</constant>
		<constant name="COMPRESSION_FAST" value="1" enum="CompressionLevel">
			Start a file with the fastest Deflate compression level ([code]1[/code]). This is fast to compress, but results in larger file sizes than [constant COMPRESSION_DEFAULT]. Decompression speed is generally unaffected by the chosen compression level.
		</constant>
		<constant name="COMPRESSION_BEST" value="9" enum="CompressionLevel">
			Start a file with the best Deflate compression level ([code]9[/code]). This is slow to compress, but results in smaller file sizes than [constant COMPRESSION_DEFAULT]. Decompression speed is generally unaffected by the chosen compression level.
		</constant>
	</constants>
</class>