Working with ZIP files

Livecode has the ZIP libraries integrated, so you can work with zip files.
In order to compress files or folder you have to use the absolute path of the new archive, example:

revZipOpenArchive "C:/myarchive.zip", "write"



Now you can add files and folders, just indicate the absolute paths inside the archive. You specify just files one by one, and directories are created by the path used, this is the code:

revZipAddItemWithFile "C:/myarchive.zip", "test.txt", "C:/Programs/RunRev/test.txt"
revZipAddItemWithFile "C:/myarchive.zip", "folder1/test.txt", "C:/Programs/RunRev/test.txt"
revZipAddItemWithFile "C:/myarchive.zip", "temp/folder2/test.txt", "C:/Programs/RunRev/test.txt"



After adding files, you have to close the archive, only at this point the ZIP file is correctly created:

revZipCloseArchive "C:/myarchive.zip"

In order to unzip files, first you have to get the list of files and folders, then you have to create all the folders needed on the destination filesystem, finally you can decompress files. For example, this is the code to do it on Windows:

on mouseUp
   answer file "Select Zip file to decommpress:"
   put it into myzip
   revZipOpenArchive myzip,"read"
   put revZipEnumerateItems(myzip) into tItems
   repeat for each line tline in tItems
      if last char of tline is "/" then
         create folder "C:/Documents and Settings/max/Desktop/" & tline
      else         
         put "C:/Documents and Settings/max/Desktop/" & tline into temp
         revZipExtractItemToFile myzip, tline, temp
      end if
   end repeat
   revZipCloseArchive myzip
end mouseUp

You can modify the above code for your needs.