Lua Requires Chilkat v11.0.0+

Zip and Keep Open

See more Zip Examples

Zip a directory tree by calling WriteZip instead of WriteZipAndClose. When WriteZip is called, the created zip is automatically opened and the zip object contains references to the compressed zip entries (mapped entries) contained within the .zip. Lua

local chilkat = require("chilkat")

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

local zip = chilkat.Zip.new()

local zipPath = "c:/temp/myFiles.zip"

-- Initialize the zip object, which also sets the FileName property to the path of the zip to be created.
zip:new_zip(zipPath)

-- Append references to files to be zipped.
local recurse = true
local success = zip:append_files("c:/temp/files_to_zip/*", recurse)
if not success then
    print(zip.last_error_text)
    return
end

-- Write the .zip, but don't close the zip file.
-- The zip file we just created is automatically opened and the zip object
-- now contains entries that are contained within the zip.  (They are memory-mapped entries)
success = zip:write_zip()
if not success then
    print(zip.last_error_text)
    return
end

print("Successfully created " .. zipPath)

-- Let's look at what's in the .zip we just created..

local numEntries = zip.num_entries

local entry = chilkat.ZipEntry.new()

local i = 0
while i < numEntries do
    zip:entry_at(i, entry)
    if entry.is_directory then
        print(i .. ": " .. entry.file_name .. " (directory)")
    else
        print(i .. ": " .. entry.file_name)
    end

    i = i + 1
end

-- Close the zip file when finished.
zip:close_zip()