Best way to diff two huge directory trees Post: 302224286

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librsync

librsync(3)						     Library Functions Manual						       librsync(3)

NAME

       librsync - library for delta compression of streams

SYNOPSYS

	#include <stdio.h>
	#include <stdlib.h>
	#include <librsync.h>

	cc ... -lrsync

DESCRIPTION

       The  librsync library implements network delta-compression of streams and files.  The algorithm is similar to that used in the rsync(1) and
       xdelta(2) programs, but specialized for transfer of arbitrary-length octet streams.  Unlike most diff programs, librsync does  not  require
       access to both of the files on the same machine, but rather only a short ``signature'' of the old file and the complete contents of the new
       file.

       The canonical use of librsync is in the rproxy(8) reference implementation of the rsync proposed extension to HTTP.  It may  be	useful	to
       other  programs which wish to do delta-compression in HTTP, or within their own protocol.  There are HTTP-specific utility functions within
       librsync, but they need not be used.

       A number of tools such as rdiff(1) provide command-line and scriptable access to rsync functions.

SEE ALSO

       rdiff(1)

       rdiff and librsync Manual

       http://rproxy.sourceforge.net/.

       draft-pool-rsync

BUGS

       The rsync protocol is still evolving.  There may be bugs in the implementation.	The interface may change in the future, but it is becoming
       more stable.

       Many  routines  will panic in case of error rather than returning an error code to the caller.  Patches to fix this are welcome, but at the
       current state of development aborting seems as useful as trusting to possibly-incomplete checking in the client.

AUTHOR

       Martin Pool <mbp@samba.org>, with Andrew Tridgell <tridge@samba.org>.

       rdiff development has been supported by Linuxcare, Inc and VA Linux Systems.

Martin Pool						   $Date: 2003/06/12 06:03:32 $ 					       librsync(3)