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syrep is a generic file repository synchronization tool
syrep is a generic file repository synchronization tool. syrep software may be used to synchronize large file hierarchies bidirectionally by exchanging patch files. Syrep is truely peer-to-peer, no central servers are involved. Synchronizations between more than two repositories are supported. The patch files may be transferred via offline media, e.g. removable hard disks or compact discs.
Files are tracked by their message digests, currently MD5. The following file operations are tracked in the snapshot files: creation, deletion, modification, creation of new hard or symbolic links, renaming.
(The latter is nothing more than a new hard link and removal of the old file). syrep doesn't distuinguish between soft and hard links. In fact even copies of files are treated as the same. Currently, syrep doesn't synchronize file attributes like access modes or modification times.
syrep was written to facilitate the synchronization of two large digital music repositories without direct network connection. Patch files of several gigabytes are common in this situation.
syrep is able to cope with 64 bit file sizes. (LFS)
syrep is optimized for speed. It may make use of a message digest cache to accelerate the calculation of digests of a whole directory hierarchy.
syrep requires installed development versions of zlib and Berkeley DB 4.3. If you want build syrep with support for extended attributes (currently supported on Linux only) you have to install libattr and a kernel that supports it.
syrep was developed and tested on Debian GNU/Linux "testing" from September 2003, it should work on most other Linux distributions and may be POSIX implementations since it uses GNU autoconf for source code configuration.
Some support for for big endian architectures is included, however, it is incomplete. You're welcome to send me patches.
If the syrep build system detects Oliver Kurth's xmltoman the man page is rebuilt. Otherwise the pre-compiled versions shipped with syrep are used.
What's New in This Release:
This version was ported to Win32/Cygwin.
Compatibility with Berkeley DB 4.4 was added.
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