-rsync changes since last release
+NEWS for rsync 2.6.4 (UNRELEASED)
+Protocol: 29 (changed)
+Changes since 2.6.3:
+
+ OUTPUT CHANGES:
+
+ - When rsync deletes a directory and outputs a verbose message about
+ it, it now appends a trailing slash to the name instead of (only
+ sometimes) outputting a preceding "directory " string.
+
+ - The --stats output will contain file-list time-statistics if both
+ sides are 2.6.4, or if the local side is 2.6.4 and the files are
+ being pushed (since the stats come from the sending side).
+ (Requires protocol 29.)
+
+ BUG FIXES:
+
+ - Restore the list-clearing behavior of "!" in a .cvsignore file (2.6.3
+ was only treating it as a special token in an rsync include/exclude
+ file).
+
+ - The combination of --verbose and --dry-run now mentions changes in
+ directories and it now includes the full update information that
+ would be output without --dry-run at higher levels of verbosity.
+
+ - Avoid a mkdir warning when removing a directory in the destination
+ that already exists in the --backup-dir.
+
+ - An OS that has a binary mode for its files (such as cygwin0 needed
+ setmode(fd, O_BINARY) called on the temp-file we opened with
+ mkstemp(). (Fix derived from the cygwin's rsync package.)
+
+ - Fixed a potential hang when verbosity is high, the client side is
+ the sender, and the file-list is large.
+
+ - We now check if the OS doesn't support using mknod() for creating
+ FIFOs and sockets, and compile-in using mkfifo() and socket() when
+ necessary.
+
+ - Fixed an off-by-one error in the handling of --max-delete=N.
+
+ - One place in the code wasn't checking if fork() failed.
+
+ - The "ignore nonreadable" daemon parameter no longer affects symlinks
+ that are being copied, even if they point nowhere.
+
+ - If the OS does not have lchown() and its chown() tries to set the
+ referent of a symlink (as it should), we no longer try to set the
+ user and group of a symlink.
+
+ - The generator now properly runs the hard-link loop and the dir-time
+ rewriting loop after we're sure that the redo phase is complete.
+
+ - When --backup was specified with --partial-dir=DIR (where DIR is a
+ relative path), the backup code was erroneously trying to backup a
+ file that was put into the partial-dir.
+
+ - One call to flush_write_file() was not being checked for an error.
+
+ - The --no-relative option was not being sent from the client to a
+ server sender.
+
+ - If an rsync daemon specified "dont compress = ..." for a file and the
+ client tried to specify --compress, the libz code was not handling a
+ compression level of 0 properly. This could cause a transfer failure
+ if the block-size for a file was large enough (i.e. rsync might have
+ exited with an error for large files).
+
+ - If a daemon can't open the specified log file (i.e. syslog is not
+ being used), die without crashing. We also try to output an error
+ about the failure (which will only be seen if --no-detach was
+ specified).
+
+ - A local transfer no longer duplicates all its include/exclude options
+ by sending the forked process a copy of the list it already has.
ENHANCEMENTS:
- * The --delete-after option now implies --delete. (Wayne Davison)
+ - Rsync now supports popt's option aliases, which means that you can
+ use /etc/popt and/or ~/.popt to create your own option aliases.
- * The --suffix option can now be used with --backup-dir. (Michael
- Zimmerman)
+ - Added the --delete-during (--del) option which will delete files
+ from on the receiving side incrementally as each directory in the
+ transfer is being processed (which makes it more efficient than the
+ default, before-the-transfer behavior of --delete). Note that the
+ --del option is implemented as an internally-defined popt alias, so
+ an rsync daemon that refuses "delete" (which, for safety's sake,
+ really matches "delete*") will still refuse all delete options. The
+ default --delete behavior is also explicitly selectable via
+ --delete-before.
- * Combining "::" syntax with the -rsh/-e option now uses the
- specified remote-shell as a transport to talk to a (newly-spawned)
- server-daemon. This allows someone to use daemon features, such
- as modules, over a secure protocol, such as ssh. (JD Paul)
+ - All the --delete-WHEN options are now more memory efficient:
+ Previously an entire duplicate set of file-list objects was created
+ on the receiving side for the entire destination hierarchy. The new
+ algorithm only creates one directory of objects at a time.
- * The rsync:// syntax for daemon connections is now accepted in the
- destination field.
+ - Added the --copy-dest option, which works like --link-dest except
+ that it includes copies of identical files.
- BUG FIXES:
-
- * Fix "forward name lookup failed" errors on AIX 4.3.3. (John
- L. Allen, Martin Pool)
+ - Added support for specifying multiple --compare-dest, --copy-dest, or
+ --link-dest options, but only of a single type. (Promoted from the
+ patches dir and enhanced.)
+
+ - Added the --max-size option. (Promoted from the patches dir.)
+
+ - The daemon-mode options were separated from the normal rsync options
+ so that they can't be mixed together. This makes it impossible to
+ start a daemon that had improper default option values that could
+ cause problems (such as a hang or an abort) when a client connects.
+
+ - The --bwlimit option may now be used in combination with --daemon
+ to specify both a default value for the daemon side and a value
+ that cannot be exceeded by a user-specified --bwlimit option.
+
+ - Added the "port" parameter to the rsyncd.conf file. (Promoted from
+ the patches dir.) Also added "address". A command-line option
+ will take precedence over a config-file option, as expected.
- * Generate each file's rolling-checksum data as we send it, not
- in a separate (memory-eating) pass before hand. This prevents
- timeout errors on really large files. (Stefan Nehlsen)
+ - In _exit_cleanup(): when we are exiting with a partially-received
+ file, we now flush any data in the write-cache before closing the
+ partial file.
- * Fix compilation on Tru64. (Albert Chin, Zoong Pham)
+ - The --inplace support was enhanced to work with --compare-dest,
+ --link-dest, and (the new) --copy-dest options. (Requires protocol
+ 29.)
- * Better handling of some client-server errors. (Martin Pool)
+ - Added the --dirs (-d) option for an easier way to copy directories
+ without recursion.
- * Fixed a crash that would occur when sending a list of files that
- contains a duplicate name (if it sorts to the end of the file
- list) and using --delete. (Wayne Davison)
+ - Added the --list-only option which is mainly a way for the client to
+ put the server into listing mode without needing to resort to any
+ option kluges (e.g. the age-old use of "-r --exclude="/*/*" for a
+ non-recursive listing). This option is used automatically when a
+ modern rsync speaks to a modern daemon, but may also be specified
+ manually if you want to force the use of the --list-only option over
+ a remote-shell connection.
+
+ - Added the --omit-dir-times (-O) option which will avoid updating the
+ modified time for directories when --times was specified. This
+ option will avoid an extra pass through the file-list at the end of
+ the transfer (to tweak all the directory times), which can result in
+ an appreciable speedup for a really large transfer. (Promoted from
+ the patches dir.)
+
+ - Added the --filter (-f) option and its helper option, -F. Filter
+ rules are an extension to the existing include/exclude handling
+ that also supports nested filter files as well as per-directory
+ filter files (like .cvsignore, but with full filter-rule parsing).
+ This new option was chosen in order to ensure that all existing
+ include/exclude processing remained 100% compatible with older
+ versions. Protocol 29 is needed for full filter-rule support, but
+ backward-compatible rules work with earlier protocol versions.
+ (Promoted from the patches dir.)
+
+ - Added the --delay-updates option that puts all updated files into
+ a temporary directory (by default ".~tmp~", but settable via the
+ --partial-dir=DIR option) until the end of the transfer. This
+ makes the updates a little more atomic for a large transfer.
+
+ - If rsync is put into the background, any output from --progress is
+ reduced.
+
+ - Documented the "max verbosity" setting for rsyncd.conf. (This
+ setting was added a couple releases ago, but left undocumented.)
+
+ - The sender and the generator now double-check the file-list index
+ they are given, and refuse to operate on a directory index (since
+ that would indicate that something had gone very wrong).
+
+ - Added the --fuzzy option, which attempts to find a basis file for a
+ file that is being created from scratch. The current algorithm
+ only looks in the destination directory for the created file, but
+ it does attempt to find a match based on size/mod-time (in case the
+ file was renamed with no other changes) as well as based on a fuzzy
+ name-matching algorithm. This option requires protocol 29 because
+ it needs the new file-sorting order. (Promoted from patches dir
+ and enhanced.)
+
+ SUPPORT FILES:
+
+ - Added support/atomic-rsync -- a perl script that will transfer some
+ files using rsync, and then move the updated files into place all at
+ once at the end of the transfer. Only works when pulling, and uses
+ --link-dest and a parallel hierarchy of files to effect its update.
+
+ - Added support/mnt-excl that takes the /proc/mounts file and
+ translates it into a set of excludes that will exclude all mount
+ points (even mapped mounts to the same disk). The excludes are made
+ relative to the specified source dir and properly anchored.
+
+ - Added support/savetransfer.c -- a C program that can make a copy of
+ all the data that flows over the wire. This lets you test for data
+ corruption (by saving the data on both the sending side and the
+ receiving side) or provides a way to help debug a protocol error.
+
+ - Added support/rrsync -- my version of Joe Smith's restricted rsync
+ perl script. This helps to ensure that only certain rsync commands
+ can be run by an ssh invocation.
+
+ - Improved the option descriptions in the --help text.
INTERNAL:
- * Many code cleanups and improved internal documentation. (Martin
- Pool, Nelson Beebe)
+ - Added better checking of the checksum-header values that come over
+ the socket.
+
+ - Merged the various delete-file functions into a single function so
+ that it is easier to maintain.
+
+ - Improved the type of some variables (particularly blocksize vars) for
+ consistency and proper size.
+
+ - Got rid of the uint64 type (which we didn't need).
+
+ - Use a slightly more compatible set of core #include directives.
+
+ - Defined int32 in a way that ensures that the build dies if we can't
+ find a variable with at least 32 bits.
+
+ PROTOCOL DIFFERENCES FOR VERSION 29:
+
+ - If --inplace is specified, the generator sends an extra byte after
+ each index integer indicating what kind of basis file is being used
+ for the transfer (see the FNAMECMP_* defines).
+
+ - The sending of exclude names is done using filter-rule syntax. This
+ means that all names have a prefixed rule indicator, even excludes
+ (which used to be sent as a bare pattern, when possible). The -C
+ option will include the per-dir .cvsignore merge file in the list of
+ filter rules so it is positioned correctly (unlike in some older
+ transfer scenarios).
+
+ - Rsync sorts the filename list in a different way: it sorts the
+ subdir names after the non-subdir names for each dir's contents, and
+ it always puts a dir's contents immediately after the dir's name in
+ the list. (Previously an item named "foo.txt" would sort in between
+ directory "foo/" and "foo/bar".)
+
+ - When talking to a protocol 29 rsync daemon, a list-only request
+ is able to note this before the options are sent over the wire, and
+ the new --list-only option is enabled.
+
+ - When the --stats bytes are sent over the wire (or stored in a batch),
+ they now include two elapsed-time values: one for how long it took to
+ build the file-list, and one for how long it took to send it over the
+ wire (each expressed in thousandths of a second).
+
+ - When --delete-excluded is specified with some filter rules (AKA
+ excludes), a client sender will still initiate a send of the filter
+ rules to the receiver, but it only includes those rules that are
+ receiver-specific. Older protocols used to omit the sending of
+ excludes in this situation (since there were no receiver-specific
+ rules that survived --delete-excluded back then).
+
+ - A protocol-29 batch file includes a bit for the setting of the --dirs
+ option. Also, the shell script created by --write-batch will use the
+ --filter option instead of --exclude-from to capture any filter rules.
+
+ BUILD CHANGES:
- * More test cases. (Martin Pool)
+ - Handle an operating system that use mkdev() in place of makedev().
- * Updated included popt to the latest vendor drop, version 1.6.4.
- (Jos Backus)
+ - Improved configure to better handle cross-compiling.