X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/48d704af5220f9e24133a1567d6c85db31792ca7..ac669e8b922c7ace230294f9bf9a3a2bdfbd19d2:/NEWS diff --git a/NEWS b/NEWS index 581c86c9..99ebc708 100644 --- a/NEWS +++ b/NEWS @@ -1,280 +1,271 @@ -NEWS for rsync 2.6.1 (UNRELEASED) -Protocol: 27 (unchanged) -Changes since 2.6.0: - - ENHANCEMENTS: - - * Lower memory use and more optimal transfer of data over - the socket (see the INTERNAL section for details). - - * The RSYNC_PROXY environment variable can now contain a - "USER:PASS@" prefix before the "HOST:PORT" information. - (Bardur Arantsson) - - * The --progress output now mentions how far along in the - transfer we are, including both a count of files transferred - and a percentage of the total file-count that we're processed. - - * The configure script now accepts --with-rsyncd-conf=PATH - to override the default value of the /etc/rsyncd.conf file. +NEWS for rsync 2.6.7 (UNRELEASED) +Protocol: 29 (unchanged) +Changes since 2.6.6: + + OUTPUT CHANGES: + + - The letter 'D' in the itemized output was being used for both devices + (character or block) as well as other special files (such as fifos and + named sockets). This has changed to separate non-device special files + under the 'S' designation (e.g. "cS+++++++ path/fifo"). See also the + "--specials" option, below. + + - The way rsync escapes unreadable characters has changed. First, rsync + now has support for recognizing valid multibyte character sequences in + your current locale, allowing it to escape fewer characters than before + for a locale such as UTF-8. Second, it now uses an escape idiom of + "\#123", which is the literal string "\#" followed by exactly 3 octal + digits. Rsync no longer doubles a backslash character in a filename + (e.g. it used to output "foo\\bar" when copying "foo\bar") -- now it only + escapes a backslash that is followed by a hash-sign and 3 digits (0-9) + (e.g. it will output "foo\#134#789" when copying "foo\#789"). See also + the --8-bit-output (-8) option, mentioned below. + + Script writers: the local rsync is the one that outputs escaped names, + so if you need to support unescaping of filenames for older rsyncs, I'd + suggest that you parse the output of "rsync --version" and only use the + old unescaping rules for 2.6.5 and 2.6.6. BUG FIXES: - * When -x (--one-file-system) is combined with -L (--copy-links) - or --copy-unsafe-links, no symlinked files are skipped, even - if the referant file is on a different filesystem. - - * The --link-dest code now works properly for a non-root user - when the UIDs of the source and destination differ and -o was - specified, and when the group of the source can't be used on - the destination and -g was specified. (Wayne Davison) - - * Fixed a bug in the handling of -H (hard-links) that might - cause the expanded PATH/NAME value of the current item to - get overwritten (due to an expanded-name caching bug). - (Wayne Davison) - - * We now reset the "new data has been sent" flag at the start - of each file we send. This makes sure that an interrupted - transfer with the --partial option set doesn't keep a shorter - temp file than the current basis file when no new data has been - transfered over the wire for that file. (Wayne Davison) - - * Fixed a byte-order problem in --batch-mode on big-endian - machines. (Jay Fenlason) - - * Fixed configure bug when running "./configure --disable-ipv6". - (Wayne Davison) - - * Fixed "make test" bug when build dir is not the source dir. + - Fixed a really old bug that caused --checksum (-c) to checksum all the + files encountered during the delete scan (ouch). - * When using --cvs-exclude, the exclude items we get from a - directory's .cvsignore file once again only affect that one - directory (and not all following directories too). + - Fixed a potential hang in a remote generator: when the receiver gets a + read-error on the socket, it now signals the generator about this so that + the generator does not try to send any of the terminating error messages + to the client (avoiding a potential hang in some setups). - * When transferring a file that has group 0 with -g specified - (typically via -a) and not enough privs to retain the group, - rsync no longer complains about "chown" failing. + - Made hard-links work with symlinks and devices again. - * When specifying the USER@HOST: prefix for a file, the USER - part can now contain an '@', if needed (i.e. the last '@' - is used to find the HOST, not the first). + - If the sender gets an early EOF reading a source file, we propagate this + error to the receiver so that it can discard the file and try requesting + it again (which is the existing behavior for other kinds of read errors). - * Fixed some bugs in the handling of group IDs for non-root - users: (1) It properly handles a group that the sender didn't - have a name for (it would previously skip changing the group - on any files in that group). (2) If --numeric-ids is used, - rsync no longer attempts to set groups that the user doesn't - have the permission to set. + - If a device-file/special-file changes permissions, rsync now updates the + permissions without recreating the file. - * Fixed the "refuse options" setting in the rsyncd.conf file. + - If the user specifies a remote-host for both the source and destination, + we now output a syntax error rather than trying to open the destination + hostspec as a filename. - * Rsync no longer discards a double-slash at the start of a filename - when trying to open the file. It also no longer constructs names - that start with a double slash (unless the user supplied both). + - When --inplace creates a new destination file, rsync now creates it with + permissions 0600 instead of 0000 -- this makes restarting possible when + the transfer gets interrupted in the middle of sending a new file. - * Fixed compilation problem on Tru64 Unix (having to do with - sockaddr.sa_len and sockaddr.sin_len). + - Reject the combination of --inplace and --sparse since the sparse-output + algorithm doesn't work when overwriting existing data. - INTERNAL: - - * Most of the I/O is now buffered, which results in a pretty - large speedup when running under MS Windows. (Craig Barratt) - - * Optimizations to the name-handling/comparing code have made - some significant reductions in user-CPU time for large file - sets. (Wayne Davison) - - * Some variable-type cleanup that makes the code more consistent. - (Wayne Davison) - - * Reduced memory requirements of hard link preservation. - (J.W. Schultz) - - * Implemented a new algorithm for hard-link handling that speeds - up the code significantly. (J.W. Schultz and Wayne Davison) + - Fixed the directory name in the error that is output when pop_dir() + fails. - * The --hard-link option now uses the first existing file in the - group of linked files as the basis for the transfer. This - prevents the sub-optimal transfer of a file's data when a new - hardlink is added on the sending side and it sorts alphabetically - earlier in the list than the files that are already present on the - receiving side. + - Really fixed the parsing of a "!" entry in .cvsignore files this time. - * Dropped support for protocol versions less than 20 - (2.3.0 released 15 Mar 1999) and activated warnings for - protocols less than 25 (2.5.0 released 23 Aug 2001) - (Wayne Davison and J.W. Schultz, severally) + - If the generator gets a stat() error on a file, output it (this used to + require at least -vv for the error to be seen). - * More optimal data transmission for --hard-links (protocol 28). + - If waitpid() fails or the child rsync didn't exit cleanly, we now handle + the exit status properly and generate a better error. - * More optimal data transmission for --checksum (protocol 28). + - Fixed some glitches in the double-verbose output when using --copy-dest, + --link-dest, or --compare-dest. Also improved how the verbose output + handles hard-links (within the transfer) that had an up-to-date alternate + "dest" file, and copied files (via --copy-dest). - * Less memory is used when --checksum is specified. + - Fixed the matching of the dont-compress items (e.g. *.gz) against files + that have a path component containing a slash. - * Less memory is used in the file list (a per-file savings). + - If code reading a filter/exclude file an EINTR error, rsync now clears + the error flag on the file handle so it can keep on reading. - * Changed hardlink info and file_struct + strings to use - allocation pools. This reduces memory use for large - filesets and permits freeing memory to the OS. (J.W. Schultz) + - If --relative is active, the sending side cleans up trailing "/" or "/." + suffixes to avoid triggering a bug in older rsync versions. Also, we now + reject a ".." dir if it would be sent as a relative dir. - * The 2 pipes used between the receiver and generator processes - (which are forked on the same machine) were reduced to 1 pipe - and the protocol improved so that (1) it is now impossible to - have the "redo" pipe fill up and hang rsync, and (2) trailing - messages from the receiver don't get lost on their way through - the generator over to the sender (the latter mainly affected - hard-link messages). (Wayne Davison) + - If a non-directory is in the way of a directory and rsync is run with + --dry-run and --delete, rsync no longer complains about not being able + to opendir() the not-yet present directory. - * The reading & writing of the file list in batch-mode is now - handled by the same code that sends & receives the list over - the wire. This makes it much easier to maintain. + - Got rid of the need for --force to be used in some circumstances with + --delete-after (making it consistent with --delete-before/-during). - * Optimized the -x (--one-file-system) flag's handling of any - mount-point directories we encounter (it no longer scans the - contents of the mount-point dirs, just to throw away the data). - - * Improved the internal uid/gid code to be more portable and - a little more optimized. - - -NEWS for rsync 2.6.0 (1 Jan 2004) -Protocol: 27 (changed) -Changes since 2.5.7: + - Rsync now ignores the SIGXFSZ signal, just in case your OS sends this + when a file is too large (rsync handles the write error). ENHANCEMENTS: - * "ssh" is now the default remote shell for rsync. If you want to - change this, configure like this: "./configure --with-rsh=rsh". + - Added the --append option that makes rsync append data onto files that + are longer on the source than the destination (this includes new files). + + - Added the --min-size=SIZE option to exclude small files from the + transfer. - * Added --files-from, --no-relative, --no-implied-dirs, and --from0. - Note that --from0 affects the line-ending character for all the - files read by the --*-from options. (Wayne Davison) + - Added the --compress-level option to allow you to set how aggressive + rsync's compression should be (this option implies --compress). + + - Enhanced the parsing of the SIZE value for --min-size and --max-size to + allow easy entry of multiples of 1000 (instead of just multiples of 1024) + and off-by-one values too (e.g. --max-size=8mb-1). - * Length of csum2 is now per-file starting with protocol version - 27. (J.W. Schultz) + - Added the --8-bit-output (-8) option, which tells rsync to avoid escaping + high-bit characters that it thinks are unreadable in the current locale. - * Per-file dynamic block size is now sqrt(file length). The - per-file checksum size is determined according to an algorithm - provided by Donovan Baarda which reduces the probability of rsync - algorithm corrupting data and falling back using the whole md4 - checksums. (J.W. Schultz, Donovan Baarda) + - The new option --human-readable (-h) changes the output of --progress, + --stats, and the end-of-run summary to be easier to read. If repeated, + the units become powers of 1024 instead of powers of 1000. (The old + meaning of -h, as a shorthand for --help, still works as long as you + just use it on its own, as in "rsync -h".) - * The --stats option no longer includes the (debug) malloc summary - unless the verbose option was specified at least twice. + - If lutimes() and/or lchmod() are around, use them to allow the + preservation of attributes on symlinks. - * Added a new error/warning code for when files vanish from the - sending side. Made vanished source files not interfere with the - file-deletion pass when --delete-after was specified. + - The --link-dest option now affects symlinks and devices (when possible). + + - Added two config items to the rsyncd.conf parsing: "pre-xfer exec" and + "post-xfer exec". These allow a command to be specified on a per-module + basis that will be run before and/or after a daemon-mode transfer. (See + the man page for a list of the environment variables that are set with + information about the transfer.) - * Various trailing-info sections are now preceded by a newline. + - When using the --relative option, you can now insert a dot dir in + the source path to indicate where the replication of the source dirs + should start. For example, if you specify a source path of + rsync://host/module/foo/bar/./baz/dir with -R, rsync will now only + replicate the "baz/dir" part of the source path (note: a trailing + dot dir is unaffected unless it also has a trailing slash). - BUG FIXES: + - Added some new --no-FOO options that make it easier to override unwanted + implied or default options. For example, "-a --no-o" (aka "--archive + --no-owner") can be used to turn off the preservation of file ownership + that is implied by -a. - * Fixed several exclude/include matching bugs when using wild-cards. - This has a several user-visible effects, all of which make the - matching more consistent and intuitive. This should hopefully not - cause anyone problems since it makes the matching work more like - what people are expecting. (Wayne Davison) + - Added the --chmod=MODE option that allows the destination permissions to + be changed from the source permissions. E.g. --chmod=g+w,o-rwx - - A pattern with a "**" no longer causes a "*" to match slashes. - For example, with "/*/foo/**", "foo" must be 2 levels deep. - [If your string has BOTH "*" and "**" wildcards, changing the - "*" wildcards to "**" will provide the old behavior in all - versions.] + - Added the "incoming chmod" and "outgoing chmod" daemon options that allow + a module to specify what permissions changes should be applied to all + files copied to and from the daemon. - - "**/foo" now matches at the base of the transfer (like /foo - does). [Use "/**/foo" to get the old behavior in all versions.] + - Allow the --temp-dir option to be specified when starting a daemon, which + sets the default temporary directory for incoming files. - - A non-anchored wildcard term floats to match beyond the base of - the transfer. E.g. "CVS/R*" matches at the end of the path, - just like the non-wildcard term "CVS/Root" does. [Use "/CVS/R*" - to get the old behavior in all versions.] + - If --delete is combined with --dirs without --recursive, rsync will now + delete in any directory whose content is being synchronized. - - Including a "**" in the match term causes it to be matched - against the entire path, not just the name portion, even if - there aren't any interior slashes in the term. E.g. "foo**bar" - would exclude "/path/foo-bar" (just like before) as well as - "/foo-path/baz-bar" (unlike before). [Use "foo*bar" to get the - old behavior in all versions.] + - If --backup is combined with --delete without --backup-dir (and without + --delete-excluded), we add a "protect" filter-rule to ensure that files + with the backup suffix are not deleted. - * The exclude list specified in the daemon's config file is now - properly applied to the pulled items no matter how deep the - user's file-args are in the source tree. (Wayne Davison) + - The file-count stats that are output by --progress were improved to + better indicate what the numbers mean. For instance, the output: + "(xfer#5, to-check=8383/9999)" indicates that this was the fifth file + to be transferred, and we still need to check 8383 more files out of + a total of 9999. - * For protocol version >= 27, mdfour_tail() is called when the - block size (including checksum_seed) is a multiple of 64. - Previously it was not called, giving the wrong MD4 checksum. - (Craig Barratt) + - The include/exclude code now allows a dir/*** directive (with 3 trailing + stars) to match both the dir itself as well as all the content below the + dir (dir/** would not match the dir). - * For protocol version >= 27, a 64 bit bit counter is used in - mdfour.c as required by the RFC. Previously only a 32 bit bit - counter was used, causing incorrect MD4 file checksums for - file sizes >= 512MB - 4. (Craig Barratt) + - Added the --prune-empty-dirs (-m) option that makes the receiving rsync + discard empty chains of directories from the file-list. This makes it + easier to selectively copy files from a source hierarchy and end up with + just the directories needed to hold the resulting files. - * Fixed a crash bug when interacting with older rsync versions and - multiple files of the same name are destined for the same dir. - (Wayne Davison) + - If the --itemize-changes (-i) option is repeated, rsync now includes + unchanged files in the itemized output (similar to -vv, but without all + the other verbose messages that can get in the way). Of course, the + client must be version 2.6.7 for this to work, but the remote rsync only + needs to be 2.6.7 if you're pushing files. - * Keep tmp names from overflowing MAXPATHLEN. + - Added the --specials option to tell rsync to copy non-device special + files (which rsync now attempts even as a normal user). The --devices + option now requests the copying of just devices (character and block). + The -D option still requests both (e.g. --devices and --specials), -a + still implies -D, and non-root users still get a silent downgrade that + omits device copying. - * Make --link-dest honor the absence of -p, -o, and -g. + - Added the --super option to make the receiver always attempt super-user + activities. This is useful for systems that allow things such as devices + to be created or ownership to be set without being UID 0, and is also + useful for someone who wants to ensure that errors will be output if the + receiving rsync isn't being run as root. - * Made rsync treat a trailing slash in the destination in a more - consistent manner. + - Added the --sockopts option for those few who want to customize the TCP + options used to contact a daemon rsync. - * Fixed file I/O error detection. (John Van Essen) + - Added a way for the --temp-dir option to be combined with a partial-dir + setting that lets rsync avoid non-atomic updates (for those times when + --temp-dir is not being used because space is tight). - * Fixed bogus "malformed address {hostname}" message in rsyncd log - when checking IP address against hostnames from "hosts allow" - and "hosts deny" parameters in config file. + - A new support script, files-to-excludes, will transform a list of files + into a set of include/exclude directives that will copy those files. - * Print heap statistics when verbose >= 2 instead of when >= 1. + - A new option, --executability (-E) can be used to preserve just the + execute bit on files, for those times when using the --perms option is + not desired. + + - The daemon now logs each module-list request it receives. + + - New log-format options: %M (modtime), %U (uid), %G (gid), and %B + (permission bits, e.g. "rwxr-xrwt"). + + - The --dry-run option no longer forces the enabling of --verbose. + + - Various documentation improvements, including: a better synopsis, some + improved examples, a better discussion of the presence and absence of + --perms (including how it interacts with the new --executability and + --chmod options), an extended discussion of --temp-dir, an improved + discussion of --partial-dir, a better description of rsync's pattern + matching characters, and the documenting of what the various items in + the --stats output mean. + + - Various new and updated diffs in the patches dir, including: acls.diff, + xattrs.diff, atimes.diff, detect-renamed.diff, and slp.diff. - * Fixed a compression (-z) bug when syncing a mostly-matching file - that contains already-compressed data. (Yasuoka Masahiko and - Wayne Davison) + INTERNAL: - * Fixed a bug in the --backup code that could cause deleted files - to not get backed up. + - We now use sigaction() and sigprocmask() if possible, and fall back on + signal() if not. Using sigprocmask() ensures that rsync enables all the + signals that it needs, just in case it was started in a masked state. - * When the backup code makes new directories, create them with mode - 0700 instead of 0755 (since the directory permissions in the - backup tree are not yet copied from the main tree). + - Some buffer sizes were expanded a bit, particularly on systems where + MAXPATHLEN is overly small (e.g. cygwin). - * Call setgroups() in a more portable manner. + - If io_printf() tries to format more data than fits in the buffer, exit + with an error instead of transmitting a truncated buffer. - * Improved file-related error messages to better indicate exactly - what pathname failed. (Wayne Davison) + - If a va_copy macro is defined, lib/snprintf.c will use it when defining + the VA_COPY macro. - * Fixed some bugs in the handling of --delete and --exclude when - using the --relative (-R) option. (Wayne Davison) + - Reduced the amount of stack memory needed for each level of directory + recursion by nearly MAXPATHLEN bytes. - * Fixed bug that prevented regular files from replacing - special files and caused a directory in --link-dest or - --compare-dest to block the creation of a file with the - same path. A directory still cannot be replaced by a - regular file unless --delete specified. (J.W. Schultz) + - The wildmatch function was extended to allow an array of strings to be + supplied as the string to match. This allows the exclude code to do less + string copying. - * Detect and report when open or opendir succeed but read and - readdir fail caused by network filesystem issues and truncated - files. (David Norwood, Michael Brown, J.W. Schultz) + - Got rid of the safe_fname() function (and all the myriad calls) and + replaced it with a new function in the log.c code that filters all the + output going to the terminal. - * Added a fix that should give ssh time to restore the tty settings - if the user presses Ctrl-C at an ssh password prompt. + - Unified the f_name() and the f_name_to() functions. - INTERNAL: + DEVELOPER RELATED: - * Eliminated vestigial support for old versions that we stopped - supporting. (J.W. Schultz) + - The diffs in the patches dir now require "patch -p1