(Lua) Zip

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Zip a directory tree.

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    -- In the following call to loadlib, change the path (./chilkat.dll) to the relative or absolute directory where the chilkat.dll, chilkat.so, or chilkat.dylib is located.
    chilkat = assert(package.loadlib("./chilkat.dll", "luaopen_chilkat"))()
    print(chilkat._VERSION)

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

    local zip = chilkat.newZip{}

    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:NewZip(zipPath)

    -- Append references to files to be zipped.
    local recurse = true
    local success = zip:AppendFiles("c:/temp/files_to_zip/*",recurse)
    if success == false then
        print(zip:LastErrorText())

    end

    -- Write the .zip and close the zip file (and clears the zip object).
    success = zip:WriteZipAndClose()
    if success == false then
        print(zip:LastErrorText())

    end

    print("Successfully created ", zipPath)

    -- If the following files existed under c:/temp/files_to_zip

    -- c:/temp/files_to_zip/aaa/pigs.json
    -- c:/temp/files_to_zip/bbb/base64Cert.txt
    -- c:/temp/files_to_zip/bbb/sub1/brasil_cert.pem
    -- c:/temp/files_to_zip/bbb/sub2/penguins.gif
    -- c:/temp/files_to_zip/bbb/sub2/starfish.jpg
    -- c:/temp/files_to_zip/hamlet.xml
    -- c:/temp/files_to_zip/hello.pdf

    -- then the zip we created would contain:

    -- aaa/pigs.json
    -- bbb/base64Cert.txt
    -- bbb/sub1/brasil_cert.pem
    -- bbb/sub2/penguins.gif
    -- bbb/sub2/starfish.jpg
    -- hamlet.xml
    -- hello.pdf