X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/6fcedb7dbe10667f4e8287c8416174c2859c4279..e73ad2be542bd5f32f8bdb58885884fa16647ceb:/OLDNEWS diff --git a/OLDNEWS b/OLDNEWS index ee3898aa..61a17343 100644 --- a/OLDNEWS +++ b/OLDNEWS @@ -1,3 +1,647 @@ +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). + + - Non-printable characters in filenames are replaced with a '?' to + avoid corrupting the screen or generating empty lines in the output. + + 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 differed 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. Any directories that are encountered are created + on the destination. Specifying a directory with a trailing slash + copies its immediate contents to the destination. + + - The --files-from option now implies --dirs (-d). + + - 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: + + 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. + + 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. + + - Got rid of a potential hang in the receiver when near the end of a + phase. + + - When using --backup without a --backup-dir, rsync no longer preserves + the modify time on directories. This avoids confusing NFS. + + - 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". + + - 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. + + - 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). + + - 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). + + - Fixed a bug in the daemon authentication code when using one of the + batch-processing options. + + - 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). + + - 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). + + - 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). + + - 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. + + - 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 an age-old crash problem with --read-batch on a local copy + (rsync was improperly assuming --whole-file for the local copy). + + - 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. + + - 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"). + + 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. + + - 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). + + - Added the "write only" option for the daemon's config file. + + - Added long-option names for -4 and -6 (namely --ipv4 and --ipv6) + and documented all these options in the man page. + + - 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 rsync daemon-over-ssh code now looks for SSH_CONNECTION and + SSH2_CLIENT in addition to SSH_CLIENT to figure out the IP address. + + - Added the --checksum-seed=N option for advanced users. + + - 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. + + - 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. + + - The daemon's "refuse options" config item now allows you to match + option names using wildcards and/or the single-letter option names. + + - 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. + + - Added the ability to parse a literal IPv6 address in an "rsync:" URL + (e.g. rsync://[2001:638:500:101::21]:873/module/dir). + + - The daemon's wildcard expanding code can now handle more than 1000 + filenames (it's now limited by memory instead of having a hard-wired + limit). + + 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. + + - Use rsyserr() in the various places that were still calling rprintf() + with strerror() as an arg. + + - 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). + + - Optimized the handling of larger block sizes (rsync used to slow to a + crawl if the block size got too large). + + - Optimized away a loop in hash_search(). + + - 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). + + - 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. + + - 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). + + BUILD CHANGES: + + - Added a "gen" target to rebuild most of the generated files, + including configure, config.h.in, the man pages, and proto.h. + + - 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). + + - 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). + + 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. + + NEWS for rsync 2.6.2 (30 Apr 2004) Protocol: 28 (unchanged) Changes since 2.6.1: @@ -789,7 +1433,9 @@ Changes since 2.4.6: build farm. Partial Protocol History - RELEASE DATE VER. DATE OF COMMIT PROTOCOL + RELEASE DATE VER. DATE OF COMMIT* PROTOCOL + 01 Jun 2005 2.6.5 29 + 30 Mar 2005 2.6.4 17 Jan 2005 29 30 Sep 2004 2.6.3 28 30 Apr 2004 2.6.2 28 26 Apr 2004 2.6.1 08 Jan 2004 28