Lua module to work with file zips.

Module with function for creating, modifying, and extracting files from zip archives.

hslua-module-zip

Lua module to work with file zips.

zip

Functions to create, modify, and extract files from zip archives.

The module can be called as a function, in which case it behaves like the zip function described below.

Zip options are optional; when defined, they must be a table with any of the following keys:

• recursive: recurse directories when set to true;
• verbose: print info messages to stdout;
• destination: the value specifies the directory in which to extract;
• location: value is used as path name, defining where files are placed.
• preserve_symlinks: Boolean value, controlling whether symbolic links are preserved as such. This option is ignored on Windows.

Functions

Archive

Archive (bytestring_or_entries)

Reads an Archive structure from a raw zip archive or a list of Entry items; throws an error if the given string cannot be decoded into an archive.

Since: 1.0.0

Parameters:

bytestring_or_entries : (string|{ZipEntry,...})

Returns:

• (ZipArchive)

Entry

Entry (path, contents[, modtime])

Generates a zip Entry from a filepath, the file's uncompressed content, and the file's modification time.

Since: 1.0.0

Parameters:

path : file path in archive (string)

contents : uncompressed contents (string)

modtime : modification time (integer)

read_entry

read_entry (filepath, opts)

Generates a ZipEntry from a file or directory.

Since: 1.0.0

Parameters:

filepath : (string)

opts : zip options (table)

Returns:

• a new zip archive entry (ZipEntry)

zip

zip (filepaths[, options])

Package and compress the given files into a new Archive.

Since: 1.0.0

Parameters:

filepaths : list of files from which the archive is created. ({string,...})

options : zip options (table)

Returns:

• a new archive (ZipArchive)

Types

Archive

A zip archive with file entries.

Fields

entries : files in this zip archive ({Entry,...})

Methods

extract([opts]) : Extract all files from this archive, creating directories as needed. Note that the last-modified time is set correctly only in POSIX, not in Windows. This function fails if encrypted entries are present.

Use `archive:extract{destination = 'dir'}` to extract to
subdirectory `dir`.

bytestring() : Returns the raw binary string representation of the archive.

Entry

File or directory entry in a zip archive.

Fields:

path : relative path, using / as separator

modtime : modification time (seconds since unix epoch)

Methods:

contents([password]) : Get the uncompressed contents of a zip entry. If password is given, then that password is used to decrypt the contents. An error is throws if decrypting fails.