Lua Requires Chilkat v11.0.0+

Unzip Selected Files from a Zip Archive

See more Zip Examples

Demonstrates how to iterate over the files contained within a .zip and unzip specific files. Lua

local chilkat = require("chilkat")

-- This example requires the Chilkat API to have been previously unlocked.
-- See Global Unlock Sample for sample code.

local zip = chilkat.Zip.new()

local success = zip:open_zip("my_files.zip")
if not success then
    print(zip.last_error_text)
    return
end

local unzipDir = "/temp/unzipDir"

-- Get the number of files and directories in the .zip
local n = zip.num_entries

local entry = chilkat.ZipEntry.new()

local i = 0
while i < n do
    zip:entry_at(i, entry)
    if not entry.is_directory then
        -- (the filename may include a path)
        print(entry.file_name)

        -- Your application may choose to unzip this entry
        -- based on the filename.
        -- If the entry should be unzipped, then call Extract(unzipDir)
        success = entry:extract(unzipDir)
        if not success then
            print(entry.last_error_text)
            return
        end
    end

    i = i + 1
end