X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/86e2f445f7febc3f7096e6c31d1be338fcceba4e..7f2a1f651e6db7483bcb3d2678dcb60cc4e54582:/NEWS diff --git a/NEWS b/NEWS index 4db1d717..b7ad4ffc 100644 --- a/NEWS +++ b/NEWS @@ -1,192 +1,303 @@ -NEWS for rsync 2.6.3 (UNRELEASED) -Protocol: 28 (unchanged) -Changes since 2.6.2: - - 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 - should 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". - - - Made sure that a filename that contains a newline gets mentioned with - each newline transformed into a question mark (which makes sure that - a filename can't span multiple lines nor cause an empty line to be - output). +NEWS for rsync 2.6.4 (UNRELEASED) +Protocol: 29 (changed) +Changes since 2.6.3: - BUG FIXES: - - - Fixed a crash bug that might appear when --delete was used and - multiple source directories were specified. - - - Fixed the 32-bit truncation of the file length when generating the - checksums. + OUTPUT CHANGES: - - The --backup code no longer attempts to create some directories - over and over again (generating warnings along the way). + - 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. - - 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. + - 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.) - - 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 (losing the - original file in the process). + - The "%o" (operation) log format 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. + + BUG FIXES: - - Fixed an age-old crash problem with --read-batch on a local copy - (rsync was improperly assuming --whole-file for the local copy). + - 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). - - 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. + - The combination of --verbose and --dry-run now mentions the full list + of changes that would be output without --dry-run. - - Got rid of a potential hang in the receiver when near the end of a - phase. + - Avoid a mkdir warning when removing a directory in the destination + that already exists in the --backup-dir. - - When using --backup without a --backup-dir, rsync no longer preserves - the modify time on directories. This avoids confusing NFS. + - 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.) - - 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". + - Fixed a potential hang when verbosity is high, the client side is + the sender, and the file-list is large. - - 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. + - 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. - - Error messages from the daemon server's option-parsing (such as - refused options) now get sent back to the client (the server used - to just exit because the socket wasn't in the right state to send - the message). + - Fixed an off-by-one error in the handling of --max-delete=N. - - Most 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). + - One place in the code wasn't checking if fork() failed. - - Fixed a bug in the daemon authentication code when using one of the - batch-processing options. + - The "ignore nonreadable" daemon parameter used to erroneously affect + symlinks that pointed to a non-existent file. This has been fixed. - - 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). + - 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. - - 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). + - 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 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 (works around a really weird - rename() behavior). + - 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. - - 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. + - One call to flush_write_file() was not being checked for an error. - ENHANCEMENTS: + - The --no-relative option was not being sent from the client to a + server sender. - - 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 + - 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). - - 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. + - 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. - - 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). + - 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). - - Added the "write only" option for the daemon's config file. + - 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). - - Added long-option names for -4 and -6 (namely --ipv4 and --ipv6) - and documented all these options in the man page. + - 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.) - - Improved the handling of the --bwlimit option so that it's less - bursty, more accurate, and works properly over a larger range of - values. + ENHANCEMENTS: - - 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. + - 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 support for specifying multiple --compare-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 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 and + --link-dest. (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.) + + - Added the --remove-sent-files option, which lets you move files + between systems. + + - 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. - - Added the --checksum-seed=N option for advanced users. + INTERNAL: - - 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 via - stdin. Also, the old requirement of using the same fixed checksum- - seed for all batch processing has been removed. + - Added better checking of the checksum-header values that come over + the socket. - - 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. + - Merged a variety of file-deleting functions into a single function so + that it is easier to maintain. - - The daemon's "refuse options" config item now allows you to match - option names using wildcards and/or the single-letter option names. + - Improved the type of some variables (particularly blocksize vars) for + consistency and proper size. - INTERNAL: + - Got rid of the uint64 type (which we didn't need). - - Some cleanup in the exclude code has saved some per-exclude memory - and made the code easier to maintain. + - Use a slightly more compatible set of core #include directives. - - Improved the argv-overflow checking for a remote command that has - a lot of args. + - Defined int32 in a way that ensures that the build dies if we can't + find a variable with at least 32 bits. - - Use rsyserr() in the various places that were still calling - rprintf() with strerror() as an arg. + - 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. - - 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). + PROTOCOL DIFFERENCES FOR VERSION 29: - - Optimized the handling of larger block sizes (rsync used to slow to - a crawl if the block size got too large). Also cap the block size. + - 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). - - Optimized away a loop in hash_search(). + - If --inplace is specified, the generator flags any transfer that is + using an alternate basis file so that the sender can use the entire + file in the rsync algorithm (unlike a normal --inplace update). - BUILD CHANGES: + - 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). - - Added a "gen" target to rebuild most of the generated files, - including configure, config.h.in, the man pages, and proto.h. + - 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".) - - 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). + - 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. - - The variable $STRIP (that is optionally set by the install-strip - target's rule) was changed to $INSTALL_STRIP because some systems - have $STRIP set in the environment. + - 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). - - Fixed a build problem when SUPPORT_HARD_LINKS isn't defined. + - 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. - DEVELOPER RELATED: + - 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. - - The scripts in the testsuite dir were cleaned up a bit. + BUILD CHANGES: - - Some new diffs were added to the patches dir, and some accepted - ones were removed. + - Handle an operating system that use mkdev() in place of makedev(). + - Improved configure to better handle cross-compiling.