+NEWS for rsync 2.6.4 (30 March 2005)
+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 for a pull.)
+
+ - The "%o" (operation) log-format escape now has a third value (besides
+ "send" and "recv"): "del." (with trailing dot to make it 4 chars).
+ This changes the way deletions are logged in the daemon's log file.
+
+ - When the --log-format option is combined with --verbose, rsync now
+ avoids outputting the name of the file twice in most circumstances.
+ As long as the --log-format item does not refer to any post-transfer
+ items (such as %b or %c), the --log-format message is output prior to
+ the transfer, so --verbose is now the equivalent of a --log-format of
+ '%n%L' (which outputs the name and any link info). If the log output
+ must occur after the transfer to be complete, the only time the name
+ is also output prior to the transfer is when --progress was specified
+ (so that the name will precede the progress stats, and the full
+ --log-format output will come after).
+
+ 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 the full list
+ of changes that would be output without --dry-run.
+
+ - 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 cygwin) needed
+ setmode(fd, O_BINARY) called on the temp-file we opened with
+ mkstemp(). (Fix derived from the cygwin's 2.6.3 rsync package.)
+
+ - Fixed a potential hang when verbosity is high, the client side is
+ the sender, and the file-list is large.
+
+ - Fixed a potential protocol-corrupting bug where the generator could
+ merge a message from the receiver into the middle of a multiplexed
+ packet of data if only part of that data had been written out to the
+ socket when the message from the generator arrived.
+
+ - We now check if the OS doesn't support using mknod() for creating
+ FIFOs and sockets, and compile-in some compatibility code using
+ mkfifo() and socket() when necessary.
+
+ - Fixed an off-by-one error in the handling of --max-delete=N. Also,
+ if the --max-delete limit is exceeded during a run, we now output a
+ warning about this at the end of the run and exit with a new error
+ code (25).
+
+ - One place in the code wasn't checking if fork() failed.
+
+ - The "ignore nonreadable" daemon parameter used to erroneously affect
+ readable symlinks that pointed to a non-existent file.
+
+ - If the OS does not have lchown() and a chown() of a symlink will
+ affect 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.
+
+ - If a file gets resent in a single transfer and the --backup option is
+ enabled along with --inplace, rsync no longer performs a duplicate
+ backup (it used to overwrite the first backup with the failed file).
+
+ - 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 (e.g. rsync might have
+ exited with an error for large files).
+
+ - Fixed a bug that would sometimes surface when using --compress and
+ sending a file with a block-size larger than 64K (either manually
+ specified, or computed due to the file being really large). Prior
+ versions of rsync would sometimes fail to decompress the data
+ properly, and thus the transferred file would fail its verification.
+
+ - If a daemon can't open the specified log file (i.e. syslog is not
+ being used), die without crashing. We also output an error about
+ the failure on stderr (which will only be seen if --no-detach was
+ specified) and exit with a new error code (6).
+
+ - A local transfer no longer duplicates all its include/exclude options
+ (since the forked process already has a copy of the exclude list,
+ there's no need to send them a set of duplicates).
+
+ - When --progress is specified, the output of items that the generator
+ is creating (e.g. dirs, symlinks) is now integrated into the progress
+ output without overlapping it. (Requires protocol 29.)
+
+ - When --timeout is specified, lulls that occur in the transfer while
+ the generator is doing work that does not generate socket traffic
+ (looking for changed files, deleting files, doing directory-time
+ touch-ups, etc.) will cause a new keep-alive packet to be sent that
+ should keep the transfer going as long as the generator continues to
+ make progress. (Requires protocol 29.)
+
+ - The stat size of a device is not added to the total file size of the
+ items in the transfer (the size might be undefined on some OSes).
+
+ - Fixed a problem with refused-option messages sometimes not making it
+ back to the client side when a remote --files-from was in effect and
+ the daemon was the receiver.
+
+ - The --compare-dest option was not updating a file that differred in
+ (the preserved) attributes from the version in the compare-dest DIR.
+
+ - When rsync is copying files into a write-protected directory, fixed
+ the change-report output for the directory so that we don't report
+ an identical directory as changed.
+
+ ENHANCEMENTS:
+
+ - Rsync now supports popt's option aliases, which means that you can
+ use /etc/popt and/or ~/.popt to create your own option aliases.
+
+ - Added the --delete-during (--del) option which will delete files
+ from the receiving side incrementally as each directory in the
+ transfer is being processed. This makes it more efficient than the
+ default, before-the-transfer behavior, which is now also available as
+ --delete-before (and is still the default --delete-WHEN option that
+ will be chosen if --delete or --delete-excluded is specified without
+ a --delete-WHEN choice). All the --del* options infer --delete, so
+ an rsync daemon that refuses "delete" will still refuse to allow any
+ file-deleting options (including the new --remove-sent-files option).
+
+ - All the --delete-WHEN options are now more memory efficient:
+ Previously an 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 (for files
+ inside the transfer).
+
+ - Added the --copy-dest option, which works like --link-dest except
+ that it locally copies identical files instead of hard-linking them.
+
+ - 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.) (Requires protocol 29.)
+
+ - Added the --max-size option. (Promoted from the patches dir.)
+
+ - The daemon-mode options are now separated from the normal rsync
+ options so that they can't be mixed together. This makes it
+ impossible to start a daemon that has improper default option values
+ (which could cause problems when a client connects, such as hanging
+ or crashing).
+
+ - 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". The command-line options
+ take precedence over a config-file option, as expected.
+
+ - 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.
+
+ - The --inplace support was enhanced to work with --compare-dest,
+ --link-dest, and (the new) --copy-dest options. (Requires protocol
+ 29.)
+
+ - Added the --dirs (-d) option for an easier way to copy directories
+ without recursion.
+
+ - 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
+ internal option kluges (e.g. the age-old use of "-r --exclude="/*/*"
+ for a non-recursive listing). This option is used automatically
+ (behind the scenes) 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 may provide
+ 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 and enhanced.)
+
+ - 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 try to do a file transfer on a
+ non-file index (since that would indicate that something had gone
+ very wrong).
+
+ - Added the --itemize-changes (-i) option, which is a way to output a
+ more detailed list of what files changed and in what way. The effect
+ is the same as specifying a --log-format of "%i %n%L" (see both the
+ rsync and rsyncd.conf manpages). Works with --dry-run too.
+
+ - Added the --fuzzy (-y) 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.) (Requires protocol 29.)
+
+ - Added the --remove-sent-files option, which lets you move files
+ between systems.
+
+ - The hostname in HOST:PATH or HOST::PATH may now be an IPv6 literal
+ enclosed in '[' and ']' (e.g. "[::1]"). (We already allowed IPv6
+ literals in the rsync://HOST:PORT/PATH format.)
+
+ - When rsync recurses to build the file list, it no longer keeps open
+ one or more directory handles from the dir's parent dirs.
+
+ - When building under windows, the default for --daemon is now to
+ avoid detaching, requiring the new --detach option to force rsync
+ to detach.
+
+ - The --dry-run option can now be combined with either --write-batch or
+ --read-batch, allowing you to run a do-nothing test command to see
+ what would happen without --dry-run.
+
+ - The daemon's "read only" config item now sets an internal read_only
+ variable that makes extra sure that no write/delete calls on the
+ read-only side can succeed.
+
+ - The log-format % escapes can now have a numeric field width in
+ between the % and the escape letter (e.g. "%-40n %08p").
+
+ - Improved the option descriptions in the --help text.
+
+ SUPPORT FILES:
+
+ - Added atomic-rsync to the support dir: 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 mnt-excl to the support dir: a perl script 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 savetransfer.c to the support dir: 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) and provides one way to debug a protocol error.
+
+ - Added rrsync to the support dir: this is an updated 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.
+
+ INTERNAL:
+
+ - Added better checking of the checksum-header values that come over
+ the socket.
+
+ - Merged a variety of file-deleting 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:
+
+ - A 16-bit flag-word is transmitted after every file-list index. This
+ indicates what is changing between the sender and the receiver. The
+ generator now transmits an index and a flag-word to indicate when
+ dirs and symlinks have changed (instead of producing a message),
+ which makes the outputting of the information more consistent and
+ less prone to screen corruption (because the local receiver/sender is
+ now outputting all the file-change info messages).
+
+ - If a file is being hard-linked, the ITEM_XNAME_FOLLOWS bit is enabled
+ in the flag-word and the name of the file that was linked immediately
+ follows in vstring format (see below).
+
+ - If a file is being transferred with an alternate-basis file, the
+ ITEM_BASIS_TYPE_FOLLOWS bit is enabled in the flag-word and a single
+ byte follows, indicating what type of basis file was chosen. If that
+ indicates that a fuzzy-match was selected, the ITEM_XNAME_FOLLOWS bit
+ is set in the flag-word and the name of the match in vstring format
+ follows the basis byte. A vstring is a variable length string that
+ has its size written prior to the string, and no terminating null.
+ If the string is from 1-127 bytes, the length is a single byte. If
+ it is from 128-32767 bytes, the length is written as ((len >> 8) |
+ 0x80) followed by (len % 0x100).
+
+ - 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 included in the options.
+
+ - 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 now initiate a send of the rules to
+ the receiver (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). Note that, as with all the
+ filter-list sending, only items that are significant to the other
+ side will actually be sent over the wire, so the filter-rule list
+ that is sent in this scenario is often empty.
+
+ - An index equal to the file-list count is sent as a keep-alive packet
+ from the generator to the sender, which then forwards it on to the
+ receiver. This normally invalid index is only a valid keep-alive
+ packet if the 16-bit flag-word that follows it contains a single bit
+ (ITEM_IS_NEW, which is normally an illegal flag to appear alone).
+
+ - A protocol-29 batch file includes a bit for the setting of the --dirs
+ option and for the setting of the --compress 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:
+
+ - Handle an operating system that use mkdev() in place of makedev().
+
+ - Improved configure to better handle cross-compiling.
NEWS for rsync 2.6.3 (30 Sep 2004)
Protocol: 28 (unchanged)
Changes since 2.6.2:
Matt McCutchen's Web Site / rsync / rsync.git / commitdiff