Generating a local copy of a virtualized application package from a local installation

A computer-implemented method for generating a copy of a file package from one or more component files of the file package, wherein the file package comprises one or more data blocks containing a contents of the one or more component files, the method comprising:

• generating an empty copy of the file package on a local storage device of a computer from a skeleton file comprising a data block hash corresponding to each of the one or more data blocks in the file package;
• for each of the one or more component files of the file package, dividing the component file into one or more blocks of data of a size less than or equal to a maximum block size;
• for each of the one or more blocks of data, computing a hash value for the block of data;
• searching the skeleton file for a data block hash matching the hash value computed for the block of data;
• and
• upon locating a matching data block hash in the skeleton file, copying the block of data to the data block of the copy of the file package corresponding to the matching data block hash from the skeleton file.

A system for generating a local copy of a virtualized application package from and a virtual file system representation of a local installation of an application associated with the virtualized application package, the system comprising:

• a computer;
• a virtual application client executing on the computer and configured to stream the application from an original copy of the virtualized application package on a server computer and present one or more component files of the application through the virtual file system representation;
• the virtualized application package comprising one or more data blocks containing a contents of the one or more component files of the application;
• a skeleton file comprising a data block header and a data block hash pair corresponding to each of the one or more data blocks in the virtualized application package;
• and
• an application package generation module executing on the computer and configured to
• generate an empty copy of the virtualized application package on a local storage device of the computer from the skeleton file,
• for each of the one or more component files of the application, dividing the component file into one or more blocks of data,
• for each of the one or more blocks of data, computing a hash value for the block of data,
• searching the skeleton file for a data block hash matching the hash value computed for the block of data;
• and
• upon locating a matching data block hash in the skeleton file, copying the block of data to the data block of the local copy of the virtualized application package corresponding to the data block header and the data block hash pair from the skeleton file.