-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 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 with --verbose being the equivalent of a --log-format of
- '%n%L' (which outputs the name and any symlink 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).
-
+NEWS for rsync 3.0.0 (UNRELEASED)
+Protocol: 30 (changed)
+Changes since 2.6.9:
+
+ NOTABLE CHANGE IN BEHAVIOR:
+
+ - The handling of implied directories when using --relative has changed
+ to send them as directories (e.g. no implied dir is ever sent as a
+ symlink). This avoids unexpected behavior and should not adversely
+ affect most people. If you're one of those rare people who relied
+ upon having an implied dir be duplicated as a symlink, either specify
+ --keep-dirlinks or --no-implied-dirs.
+
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).
+ - Fixed the output of -ii when combined with one of the --*-dest options:
+ it now itemizes all the items, not just the changed ones.
- - The combination of --verbose and --dry-run now mentions the full list
- of changes that would be output without --dry-run.
+ - Made the output of all file types consistent when using a --*-dest
+ option. Prior versions used to output too many creation events for
+ matching items.
- - Avoid a mkdir warning when removing a directory in the destination
- that already exists in the --backup-dir.
+ - The code that waits for a child pid now handles being interrupted by a
+ signal. This fixes a problem with the pre-xfer exec function not being
+ able to get the exit status from the script.
- - 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.)
+ - A negated filter rule (with a '!' modifier) no longer loses the negation
+ when sending the filter rules to the remote rsync.
- - Fixed a potential hang when verbosity is high, the client side is
- the sender, and the file-list is large.
+ - Fixed a problem with the --out-format (aka --log-format) option %f: it
+ would output superfluous directory information for a non-daemon rsync.
- - 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 was written out to the
- socket when we got the message from the generator.
+ - Fixed a problem with -vv (double --verbose) and --stats when "pushing"
+ files (which includes local copies). Version 2.6.9 would complete the
+ copy, but exit with an error when the receiver output its memory stats.
- - 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.
+ - If --password-file is used on a non-daemon transfer, rsync now complains
+ and exits. This should help users figure out that they can't use this
+ option to control a remote shell's password prompt.
- - Fixed an off-by-one error in the handling of --max-delete=N.
+ - Make sure that directory permissions of a newly-created destination
+ directory are handled right when --perms is left off.
- - One place in the code wasn't checking if fork() failed.
+ - The itemized output of a newly-created destination directory is now
+ output as a creation event, not a change event.
- - The "ignore nonreadable" daemon parameter used to erroneously affect
- symlinks that pointed to a non-existent file. This has been fixed.
+ - Improved --hard-link so that more corner cases are handled correctly
+ when combined with options such as --link-dest and/or --ignore-existing.
- - 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 --append option no longer updates a file that has the same size.
- - 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.
+ - Fixed a bug when combining --backup and --backup-dir with --inplace:
+ any missing backup directories are now created.
- - 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.
+ - Fixed a bug when using --backup and --inplace with --whole-file or
+ --read-batch: backup files are actually created now.
- - 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).
+ - Starting up an extra copy of an rsync daemon does not delete the pidfile
+ for the running daemon -- if the pidfile exists, the extra program will
+ exit with an error.
- - One call to flush_write_file() was not being checked for an error.
+ - The daemon pidfile is checked and created sooner in the startup sequence.
- - The --no-relative option was not being sent from the client to a
- server sender.
+ ENHANCEMENTS:
- - 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).
+ - A new incremental-recursion algorithm is now used when rsync is talking
+ to another 3.x version. This starts the transfer going more quickly
+ (before all the files have been found), and requires much less memory.
+ See the --recursive option in the manpage for some restrictions.
+
+ - Saved memory in the non-incremental-recursion algorithm for typical
+ option values (usually saving from 21-29 bytes per file).
+
+ - The default --delete algorithm is now --delete-during when talking to a
+ 3.x rsync. This is a faster scan than using --delete-before (which is
+ the default when talking to older rsync versions), and is compatible with
+ the new incremental recursion mode.
+
+ - Rsync now allows multiple remote-source args to be specified rather than
+ having to rely on a special space-splitting side-effect of the remote-
+ shell. Additional remote args must specify the same host or have an
+ empty hostname, as seen here: :file1 ::module/file2. This means that
+ local use of brace expansion now works: rsync -av host:path/{f1,f2} .
+
+ - Added the --delete-delay option, which is a more efficient way to delete
+ files at the end of the transfer without needing a separate delete pass.
+
+ - Added the --acls (-A) option to preserve Access Control Lists. This is
+ an improved version of the prior patch that was available, and it even
+ supports OS X ACLs. (If you need to have backward compatibility with
+ old, patched versions of rsync, apply the acls.diff file from the patches
+ dir.)
+
+ - Added the --xattrs (-X) option to preserver extended attributes. This is
+ an improved version of the prior patch that was available. (If you need
+ to have backward compatibility with old, patched versions of rsync, apply
+ the xattrs.diff file from the patches dir.)
+
+ - Added the --fake-super option that allows a non-super user to preserve
+ all attributes of a file by using a special extended-attribute idiom.
+ There is also an analogous "fake super" option for an rsync daemon.
+
+ - Added the --iconv option, which allows rsync to convert filenames from
+ one character-set to another during the transfer. The default is to make
+ this feature available as long as your system has iconv_open(). If
+ compilation fails, specify --disable-iconv to configure, and then
+ rebuild. If you want rsync to perform character-set conversions by
+ default, you can specify --enable-iconv=CONVERT_STRING with the default
+ value for the --iconv option that you wish to use. For example,
+ --enable-iconv=. is a good choice. See the rsync manpage for an
+ explanation of the --iconv option's settings.
+
+ - Added the --skip-compress=LIST option to override of the default list of
+ file suffixes that will not be compressed when using --compress.
+
+ - The daemon's default for "dont compress" was extended to include:
+ *.7z *.mp[34] *.mov *.avi *.ogg *.jpg *.jpeg
+ The matching routine was also optimized to run more quickly.
+
+ - The --max-delete option now outputs a warning if it skipped any file
+ deletions, including a count of how many deletions were skipped. (Older
+ versions just silently stopped deleting things.)
+
+ - You may specify --max-delete=0 to a 3.0.0 client to request that it warn
+ about extraneous files without deleting anything. If you're not sure
+ what version the client is, you can use the less-obvious --max-delete=-1,
+ as both old and new versions will treat that as the same request (though
+ older versions don't warn).
+
+ - The --hard-link option now uses less memory on both the sending and
+ receiving side for all protocol versions. For protocol 30, the use of a
+ hashtable on the sending side allows us to more efficiently convey to the
+ receiver what files are linked together. This reduces the amount of data
+ sent over the socket by a considerable margin (rather than adding more
+ data), and limits the in-memory storage of the device+inode information
+ to just the sending side for the new protocol 30, or to the receiving
+ side when speaking an older protocol (note that older rsync versions kept
+ the device+inode information on both sides).
+
+ - The filter rules now support a perishable ("p") modifier that marks rules
+ that should not have an effect in a directory that is being deleted. e.g.
+ -f '-p .svn/' would only affect "live" .svn directories.
+
+ - If we get an error setting the time on a symlink, we don't complain about
+ it anymore (since some operating systems don't support that, and it's not
+ that important).
+
+ - Protocol 30 now uses MD5 checksums instead of MD4.
+
+ - If a daemon module's "path" value is not an absolute pathname, the code
+ now makes it absolute internally (making it work properly).
+
+ - Changed the --append option to not checksum the existing data in the
+ destination file, which speeds up file appending.
+
+ - Added the --append-verify option, which works like the older --append
+ option (verifying the existing data in the destination file). For
+ compatibility with older rsync versions, any use of --append that is
+ talking protocol 29 or older will revert to the --append-verify method.
+
+ - Documented and extended the support for the RSYNC_CONNECT_PROG variable
+ that can be used to enhance the client side of a daemon connection.
+
+ - Added the --protect-args (-s) option, that tells rsync to send most of
+ the command-line args at the start of the transfer rather than as args
+ to the remote-shell command. This protects them from space-splitting,
+ and only interprets basic wildcard special shell characters (*?[).
+
+ - Improved the dashes and double-quotes in the nroff manpage output.
+
+ - We now support a lot more --no-OPTION override options.
- - 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.
+ INTERNAL:
- - 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).
+ - The file-list sorting algorithm now uses a sort that keeps any same-
+ named items in the same order as they were specified. This allows
+ rsync to always ensure that the first of the duplicates is the one
+ that will be included in the copy. The new sort was also faster
+ than the glibc version of qsort() and mergesort() in my testing.
- - 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).
+ - Rsync now supports the transfer of 64-bit timestamps (time_t values).
- - 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.)
+ - Fixed a build problem with older (2.x) versions of gcc.
- - 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.)
+ - Added some isType() functions that make dealing with signed characters
+ easier without forcing variables via casts.
- - The stat size of a device is not added to the total file size of the
- items in the transfer since the size might be undefined on some OSes.
+ - Changed strcat/strcpy/sprintf function calls to use safer versions.
- - 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.
+ - Upgraded the included popt version to 1.10.2 and improved its use of
+ string-handling functions.
- - The --compare-dest option was not updating a file that differred in
- (the preserved) attributes from the version in the compare-dest DIR.
+ - Added missing prototypes for compatibility functions from the lib 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.
+ - Configure determines if iconv() has a const arg, allowing us to avoid a
+ compiler warning.
- ENHANCEMENTS:
+ - Made the sending of some numbers more efficient for protocol 30.
- - 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 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.
-
- - 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 (for files
- inside the transfer).
-
- - Added the --copy-dest option, which works like --link-dest except
- that it 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 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 when a client connects (e.g. a hang or an abort).
-
- - 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.
-
- - 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 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 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 in any way and how they
- changed. The effect is the same as specifying a --log-format of
- "%i %n%L" (see the rsyncd.conf manpage). Works with --dry-run too.
-
- - 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.) (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 building under windows, the default for --daemon is now to
- avoid detaching, requiring the new --detach option to force rsync
- to detach.
-
- - 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) or provides a way to help debug a protocol error.
-
- - Added rrsync to the support dir: this is 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.
+ - Make sure that a daemon process doesn't mind if the client was weird and
+ omitted the --server option.
- INTERNAL:
+ - Improved the use of "const" on pointers.
+
+ - Improved J.W.'s pool_alloc routines to add a way of freeing older
+ sections of a pool's memory.
+
+ DEVELOPER RELATED:
+
+ - Rsync is now licensed under the GPLv3 or later.
+
+ - When running the tests, we now put our per-test temp dirs into a sub-
+ directory named testtmp (which is created, if missing). This allows
+ someone to symlink the testtmp directory to another filesystem (which is
+ useful if the build dir's filesystem does not support ACLs and xattrs,
+ and another file system does).
- - 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.
-
- - 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.
-
- 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 either the receiver or the
- sender is now outputting all the file-change info).
-
- - If a file is being hard-linked, the appropriate 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
- appropriate 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 name of the match
- immediately follows in vstring format. 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 excludes, a
- client sender will now initiate a send of the filter 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
- is often empty in this scenario.
-
- - 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.
-
- - 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).
-
- BUILD CHANGES:
-
- - Handle an operating system that use mkdev() in place of makedev().
-
- - Improved configure to better handle cross-compiling.
+ - Rsync now has a way of handling protocol-version changes during the
+ development of a new protocol version. This exchange of sub-version
+ info does not interfere with the {MIN,MAX}_PROTOCOL_VERSION checking
+ in older versions (since we'd quickly exceed the MAX_PROTOCOL_VERSION
+ if we incremented the main PROTOCOL_VERSION value for every minor
+ change during development).
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff