-NEWS for rsync 2.6.3 (30 Sep 2004)
-Protocol: 28 (unchanged)
-Changes since 2.6.2:
-
- SECURITY FIXES:
-
- - A bug in the sanitize_path routine (which affects a non-chrooted
- rsync daemon) could allow a user to craft a pathname that would get
- transformed into an absolute path for certain options (but not for
- file-transfer names). If you're running an rsync daemon with chroot
- disabled, *please upgrade*, ESPECIALLY if the user privs you run
- rsync under is anything above "nobody".
-
- OUTPUT CHANGES (ATTN: those using a script to parse the verbose output):
-
- - Please note that the 2-line footer (output when verbose) now uses the
- term "sent" instead of "wrote" and "received" instead of "read". If
- you are not parsing the numeric values out of this footer, a script
- would be better off using the empty line prior to the footer as the
- indicator that the verbose output is over.
-
- - The output from the --stats option was similarly affected to change
- "written" to "sent" and "read" to "received".
-
- - Rsync ensures that a filename that contains a newline gets mentioned
- with each newline transformed into a question mark (which prevents a
- filename from causing an empty line to be output).
-
- - The "backed up ..." message that is output when at least 2 --verbose
- options are specified is now the same both with and without the
- --backup-dir option.
+NEWS for rsync 3.0.0 (UNRELEASED)
+Protocol: 30 (changed)
+Changes since 2.6.9:
+
+ NOTABLE CHANGES 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 individuals who relied upon having
+ an implied dir be duplicated as a symlink, you should specify the
+ transfer of the symlink and the transfer of the referent directory as
+ separate args. (See also --keep-dirlinks and --no-implied-dirs.)
+
+ - Requesting a remote file list without specifying -r (--recursive) now
+ sends the -d (--dirs) option to the remote rsync rather than sending -r
+ along with an extra exclude of /*/*. If the remote rsync does not
+ understand the -d option (i.e. it is 2.6.3 or older), you will need to
+ either turn off -d (--no-d), or specify -r --exclude='/*/*' manually.
BUG FIXES:
- - Fixed a crash bug that might appear when --delete was used and
- multiple source directories were specified.
-
- - Fixed a 32-bit truncation of the file length when generating the
- checksums.
-
- - The --backup code no longer attempts to create some directories
- over and over again (generating warnings along the way).
-
- - Fixed a bug in the reading of the secrets file (by the daemon) and
- the password file (by the client): the files no longer need to be
- terminated by a newline for their content to be read in.
-
- - If a file has a read error on the sending side or the reconstructed
- data doesn't match the expected checksum (perhaps due to the basis
- file changing during the transfer), the receiver will no longer
- retain the resulting file unless the --partial option was specified.
- (Note: for the read-error detection to work, neither side can be
- older than 2.6.3 -- older receivers will always retain the file, and
- older senders don't tell the receiver that the file had a read
- error.)
-
- - If a file gets resent in a single transfer and the --backup option
- is enabled, rsync no longer performs a duplicate backup (it used to
- overwrite the original file in the backup area).
-
- - Files specified in the daemon's "exclude" or "exclude from" config
- items are now excluded from being uploaded (assuming that the module
- allows uploading at all) in addition to the old download exclusion.
+ - Fixed the output of -ii when combined with one of the --*-dest options:
+ it now itemizes all the items, not just the changed ones.
- - Got rid of a potential hang in the receiver when near the end of a
- phase.
+ - Made the output of all file types consistent when using a --*-dest
+ option. Prior versions would output too many creation events for
+ matching items.
- - When using --backup without a --backup-dir, rsync no longer preserves
- the modify time on directories. This avoids confusing NFS.
+ - 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.
- - When --copy-links (-L) is specified, we now output a separate error
- for a symlink that has no referent instead of claiming that a file
- "vanished".
+ - A negated filter rule (i.e. with a '!' modifier) no longer loses the
+ negation when sending the filter rules to the remote rsync.
- - The --copy-links (-L) option no longer has the side-effect of telling
- the receiving side to follow symlinks. See the --keep-dirlinks
- option (mentioned below) for a way to specify that behavior.
+ - Fixed a problem with the --out-format (aka --log-format) option %f: it
+ no longer outputs superfluous directory info for a non-daemon rsync.
- - Error messages from the daemon server's option-parsing (such as
- refused options) are now successfully transferred back to the client
- (the server used to fail to send the message because the socket
- wasn't in the right state for the message to get through).
+ - 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.
- - Most transfer errors that occur during a daemon transfer are now
- returned to the user in addition to being logged (some messages are
- intended to be daemon-only and are not affected by this).
+ - 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 a bug in the daemon authentication code when using one of the
- batch-processing options.
+ - Make sure that directory permissions of a newly-created destination
+ directory are handled right when --perms is left off.
- - We try to work around some buggy IPv6 implementations that fail to
- implement IPV6_V6ONLY. This should fix the "address in use" error
- that some daemons get when running on an OS with a buggy IPv6
- implementation. Also, if the new code gets this error, we might
- suggest that the user specify --ipv4 or --ipv6 (if we think it will
- help).
+ - The itemized output of a newly-created destination directory is now
+ output as a creation event, not a change event.
- - When the remote rsync dies, make a better effort to recover any error
- messages it may have sent before dying (the local rsync used to just
- die with a socket-write error).
+ - Improved --hard-link so that more corner cases are handled correctly
+ when combined with options such as --link-dest and/or --ignore-existing.
- - When using --delete and a --backup-dir that contains files that are
- hard-linked to their destination equivalents, rsync now makes sure
- that removed files really get removed (avoids a really weird rename()
- behavior).
+ - The --append option no longer updates a file that has the same size.
- - Avoid a bogus run-time complaint about a lack of 64-bit integers when
- the int64 type is defined as an off_t and it actually has 64-bits.
+ - Fixed a bug when combining --backup and --backup-dir with --inplace:
+ any missing backup directories are now created.
- - Added a configure check for open64() without mkstemp64() so that we
- can avoid using mkstemp() when such a combination is encountered.
- This bypasses a problem writing out large temp files on OSes such as
- AIX and HP-UX.
+ - Fixed a bug when using --backup and --inplace with --whole-file or
+ --read-batch: backup files are actually created now.
- - Fixed an age-old crash problem with --read-batch on a local copy
- (rsync was improperly assuming --whole-file for the local copy).
+ - Starting up an extra copy of an rsync daemon will not clobber the pidfile
+ for the running daemon -- if the pidfile exists, the new daemon will exit
+ with an error.
- - When --dry-run (-n) is used and the destination directory does not
- exist, rsync now produces a correct report of files that would be
- sent instead of dying with a chdir() error.
+ - The daemon pidfile is checked and created sooner in the startup sequence.
- - Fixed a bug that could cause a slow-to-connect rsync daemon to die
- with an error instead of waiting for the connection to finish.
-
- - Fixed an ssh interaction that could cause output to be lost when the
- user chose to combine the output of rsync's stdout and stderr (e.g.
- using the "2>&1").
+ - If a daemon module's "path" value is not an absolute pathname, the code
+ now makes it absolute internally (making it work properly).
ENHANCEMENTS:
- - Added the --partial-dir=DIR option that lets you specify where to
- (temporarily) put a partially transferred file (instead of over-
- writing the destination file). E.g. --partial-dir=.rsync-partial
- Also added support for the RSYNC_PARTIAL_DIR environment variable
- that, when found, transforms a regular --partial option (such as
- the convenient -P option) into one that also specifies a directory.
-
- - Added --keep-dirlinks (-K), which allows you to symlink a directory
- onto another partition on the receiving side and have rsync treat it
- as matching a normal directory from the sender.
+ - 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.
+
+ - Lowered memory use 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 an empty one
+ (e.g. empty: :file1 or ::module/file2). This means that local use of
+ brace expansion now works: rsync -av host:dir/{f1,f2} .
+
+ - 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 (*?[).
+
+ - 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,
+ acl-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, and it even
+ supports OS X xattrs (which includes their resource fork data). If you
+ need to have backward compatibility with old, xattr-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.
+ It even supports the storing of foreign ACL data on your backup server.
+ 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 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.
- - Added the --inplace option that tells rsync to write each destination
- file without using a temporary file. The matching of existing data
- in the destination file can be severely limited by this, but there
- are also cases where this is more efficient (such as appending data).
- Use only when needed (see the man page for more details).
+ - 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.)
- - Added the "write only" option for the daemon's config file.
+ - 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).
- - Added long-option names for -4 and -6 (namely --ipv4 and --ipv6)
- and documented all these options in the man page.
+ - 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).
- - Improved the handling of the --bwlimit option so that it's less
- bursty, more accurate, and works properly over a larger range of
- values.
+ - 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.
- - The rsync daemon-over-ssh code now looks for SSH_CONNECTION and
- SSH2_CLIENT in addition to SSH_CLIENT to figure out the IP address.
+ - 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).
- - Added the --checksum-seed=N option for advanced users.
+ - Protocol 30 now uses MD5 checksums instead of MD4.
- - Batch writing/reading has a brand-new implementation that is simpler,
- fixes a few weird problems with the old code (such as no longer
- sprinkling the batch files into different dirs or even onto different
- systems), and is much less intrusive into the code (making it easier
- to maintain for the future). The new code generates just one data
- file instead of three, which makes it possible to read the batch on
- stdin via a remote shell. Also, the old requirement of forcing the
- same fixed checksum-seed for all batch processing has been removed.
+ - Changed the --append option to not checksum the existing data in the
+ destination file, which speeds up file appending.
- - If an rsync daemon has a module set with "list = no" (which hides its
- presence in the list of available modules), a user that fails to
- authenticate gets the same "unknown module" error that they would get
- if the module were actually unknown (while still logging the real
- error to the daemon's log file). This prevents fishing for module
- names.
+ - 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.
- - The daemon's "refuse options" config item now allows you to match
- option names using wildcards and/or the single-letter option names.
+ - Documented and extended the support for the RSYNC_CONNECT_PROG variable
+ that can be used to enhance the client side of a daemon connection.
- - Each transferred file now gets its permissions and modified-time
- updated before the temp-file gets moved into place. Previously, the
- finished file would have a very brief window where its permissions
- disallowed all group and world access.
+ - Improved the dashes and double-quotes in the nroff manpage output.
- - Added the ability to parse a literal IPv6 address in an "rsync:" URL
- (e.g. rsync://[2001:638:500:101::21]:873/module/dir).
+ - We now support a lot more --no-OPTION override options.
INTERNAL:
- - Some cleanup in the exclude code has saved some per-exclude memory
- and made the code easier to maintain.
-
- - Improved the argv-overflow checking for a remote command that has a
- lot of args.
+ - 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.
- - Use rsyserr() in the various places that were still calling rprintf()
- with strerror() as an arg.
+ - Rsync now supports the transfer of 64-bit timestamps (time_t values).
- - If an rsync daemon is listening on multiple sockets (to handle both
- IPv4 and IPv6 to a single port), we now close all the unneeded file
- handles after we accept a connection (we used to close just one of
- them).
+ - Fixed a build problem with older (2.x) versions of gcc.
- - Optimized the handling of larger block sizes (rsync used to slow to a
- crawl if the block size got too large).
+ - Added some isType() functions that make dealing with signed characters
+ easier without forcing variables via casts.
- - Optimized away a loop in hash_search().
+ - Changed strcat/strcpy/sprintf function calls to use safer versions.
- - Some improvements to the sanitize_path() and clean_fname() functions
- makes them more efficient and produce better results (while still
- being compatible with the file-name cleaning that gets done on both
- sides when sending the file-list).
+ - Upgraded the included popt version to 1.10.2 and improved its use of
+ string-handling functions.
- - Got rid of alloc_sanitize_path() after adding a destination-buffer
- arg to sanitize_path() made it possible to put all the former's
- functionality into the latter.
+ - Added missing prototypes for compatibility functions from the lib dir.
- - The file-list that is output when at least 4 verbose options are
- specified reports the uid value on the sender even when rsync is
- not running as root (since we might be sending to a root receiver).
+ - Configure determines if iconv() has a const arg, allowing us to avoid a
+ compiler warning.
- BUILD CHANGES:
+ - Made the sending of some numbers more efficient for protocol 30.
- - Added a "gen" target to rebuild most of the generated files,
- including configure, config.h.in, the man pages, and proto.h.
+ - Make sure that a daemon process doesn't mind if the client was weird and
+ omitted the --server option.
- - If "make proto" doesn't find some changes in the prototypes, the
- proto.h file is left untouched (its time-stamp used to always be
- updated).
+ - Improved the use of "const" on pointers.
- - The variable $STRIP (that is optionally set by the install-strip
- target's rule) was changed to $INSTALL_STRIP because some systems
- have $STRIP already set in the environment.
-
- - Fixed a build problem when SUPPORT_HARD_LINKS isn't defined.
-
- - When cross-compiling, the gettimeofday() function is now assumed to
- be a modern version that takes two-args (since we can't test it).
+ - Improved J.W.'s pool_alloc routines to add a way of freeing older
+ sections of a pool's memory.
DEVELOPER RELATED:
- - The scripts in the testsuite dir were cleaned up a bit and a few
- new tests added.
-
- - Some new diffs were added to the patches dir, and some accepted
- ones were removed.
-
+ - 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,
+ but another file system does).
+
+ - Rsync now has a way of handling protocol-version changes during the
+ development of a new protocol version. This causes any out-of-sync
+ versions to speak an older protocol rather than fail in a cryptic manner.
+ This addition makes it safe to deploy a pre-release version that may
+ interact with the public. This new exchange of sub-version info does not
+ interfere with the {MIN,MAX}_PROTOCOL_VERSION checking algorithm (which
+ does not have enough range to allow the main protocol number to be
+ incremented for every minor tweak in that happens during development).