X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/fef101a54866e484c9cf9f1634f9d520a3fd4ecf..5cf4896050c5c9221431e556cd711baa11c68c43:/NEWS diff --git a/NEWS b/NEWS index 85703be8..b274c3ec 100644 --- a/NEWS +++ b/NEWS @@ -1,334 +1,218 @@ -NEWS for rsync 2.6.4 (UNRELEASED) -Protocol: 29 (changed) -Changes since 2.6.3: +NEWS for rsync 2.6.7 (UNRELEASED) +Protocol: 29 (unchanged) +Changes since 2.6.6: OUTPUT CHANGES: - - When rsync deletes a directory and outputs a verbose message about - it, it now appends a trailing slash to the name instead of (only - sometimes) outputting a preceding "directory " string. - - - The --stats output will contain file-list time-statistics if both - sides are 2.6.4, or if the local side is 2.6.4 and the files are - being pushed (since the stats come from the sending side). - (Requires protocol 29 for a pull.) - - - The "%o" (operation) log-format escape now has a third value (besides - "send" and "recv"): "del." (with trailing dot to make it 4 chars). - This changes the way deletions are logged in the daemon's log file. - - - When the --log-format option is combined with --verbose, rsync now - avoids outputting the name of the file twice in most circumstances. - As long as the --log-format item does not refer to any post-transfer - items (such as %b or %c), the --log-format message is output prior to - the transfer with --verbose being the equivalent of a --log-format of - '%n%L' (which outputs the name and any symlink info). If the log - output must occur after the transfer to be complete, the only time - the name is also output prior to the transfer is when --progress was - specified (so that the name will precede the progress stats, and the - full --log-format output will come after). - + - The itemized output now uses 'S' for a special file instead of + clumping them together with the 'D' for devices. The number of + characters is also different (to remove an unused field). + BUG FIXES: - - Restore the list-clearing behavior of "!" in a .cvsignore file (2.6.3 - was only treating it as a special token in an rsync include/exclude - file). + - Fixed a really old bug that caused --checksum (-c) to checksum all the + files encountered during the delete scan (ouch). - - The combination of --verbose and --dry-run now mentions the full list - of changes that would be output without --dry-run. + - 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). - - Avoid a mkdir warning when removing a directory in the destination - that already exists in the --backup-dir. + - Made hard-links work with symlinks and devices again. - - 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.) + - 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 a potential hang when verbosity is high, the client side is - the sender, and the file-list is large. + - If a device-file/special-file changes permissions, rsync now updates the + permissions without recreating the file. - - We now check if the OS doesn't support using mknod() for creating - FIFOs and sockets, and compile-in using mkfifo() and socket() when - necessary. + - If 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. - - Fixed an off-by-one error in the handling of --max-delete=N. + - 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. - - One place in the code wasn't checking if fork() failed. + - Reject the combination of --inplace and --sparse since the sparse-output + algorithm doesn't work when overwriting existing data. - - The "ignore nonreadable" daemon parameter used to erroneously affect - symlinks that pointed to a non-existent file. This has been fixed. + - Fixed the directory name in the error that is output when pop_dir() + fails. - - 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. + - Really fixed the parsing of a "!" entry in .cvsignore files this time. - - 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. + - 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). - - 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 waitpid() fails or the child rsync didn't exit cleanly, we now handle + the exit status properly and generate a better error. - - 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). + - Fixed some glitches in the double-verbose output when using --copy-dest, + --link-dest, or --compare-dest. - - One call to flush_write_file() was not being checked for an error. + - Fixed the matching of the dont-compress items (e.g. *.gz) against files + that have a path component containing a slash. - - The --no-relative option was not being sent from the client to a - server sender. + - 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. - - 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). + - 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. - - 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 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. - - 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). + - Got rid of the need for --force to be used in some circumstances with + --delete-after (making it consistent with --delete-before/-during). - - 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). + ENHANCEMENTS: - - 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.) + - Added the --specials option to tell rsync to copy special files (and does + not require root). The --devices option now affects just character and + block devices (which now matches the documentation). The -D option still + requests both --devices and --specials, and -a still implies -D. - - When --timeout is specified, lulls that occur in the transfer while - the generator is doing work that does not generate socket traffic - (looking for changed files, deleting files, doing directory-time - touch-ups, etc.) will cause a new keep-alive packet to be sent that - should keep the transfer going as long as the generator continues to - make progress. (Requires protocol 29.) + - Added the --append option that makes rsync append data onto files that + are longer on the source than the destination (this includes new files). - - The stat size of a device is not added to the total file size of the - items in the transfer since the size might be undefined on some OSes. + - Added the --min-size=SIZE option to exclude small files from the + transfer. - ENHANCEMENTS: + - Added the --compress-level option to allow you to set how aggressive + rsync's compression should be (this option implies --compress). - - 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. + - 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). - INTERNAL: + - The options --human-readable (-h) and --si change the output of the + --stats and the end-of-run summary to be easier to read. + + - If lutimes() and/or lchmod() are around, use them to allow the + preservation of attributes on symlinks. + + - The --link-dest option now affects symlinks and devices (when possible). + + - Improved the output of hard-linked and copied files when using + --link-dest, --copy-dest, or --compare-dest. + + - 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 manpage for a list of the environment variables that are set with + information about the transfer.) + + - 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). + + - 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. - - Added better checking of the checksum-header values that come over - the socket. + - Added the --chmod=MODE option that allows the destination permissions to + be changed from the source permissions. E.g. --chmod=g+w,o-rwx - - Merged a variety of file-deleting functions into a single function so - that it is easier to maintain. + - 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. - - Improved the type of some variables (particularly blocksize vars) for - consistency and proper size. + - Allow the --temp-dir option to be specified when starting a daemon, which + sets the default temporary directory for incoming files. - - Got rid of the uint64 type (which we didn't need). + - If --delete is combined with --dirs without --recursive, rsync will now + delete in any directory whose content is being synchronized. - - Use a slightly more compatible set of core #include directives. + - 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. - - Defined int32 in a way that ensures that the build dies if we can't - find a variable with at least 32 bits. + - 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. - - 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 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). - PROTOCOL DIFFERENCES FOR VERSION 29: + - 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. - - A 16-bit flag-word is transmitted after every file-list index. This - indicates what is changing between the sender and the receiver. The - generator now transmits an index and a flag-word to indicate when - dirs and symlinks have changed (instead of producing a message), - which makes the outputting of the information more consistent and - less prone to screen corruption (because either the receiver or the - sender is now outputting all the file-change info). + - If 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. + + - 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. + + - Added the --sockopts option for those few who want to customize the TCP + options used to contact a daemon rsync. + + - 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). + + - 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. + + - 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. + + - Some minor documentation improvements. + + - Updated some diffs in the patches dir. + + INTERNAL: - - If --inplace is specified, the generator flags any transfer that is - using an alternate basis file so that the sender can use the entire - basis file in the rsync algorithm (unlike a normal --inplace update). + - 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. - - 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). + - Some buffer sizes were expanded a bit, particularly on systems where + MAXPATHLEN is overly small (e.g. cygwin). - - 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 io_printf() tries to format more data than fits in the buffer, exit + with an error instead of transmitting a truncated buffer. - - 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. + - If a va_copy macro is defined, lib/snprintf.c will use it when defining + the VA_COPY macro. - - 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). + - Reduced the amount of stack memory needed for each level of directory + recursion by nearly MAXPATHLEN bytes. - - 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. + - 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. - - 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. + - 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. - - 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). + - Unified the f_name() and the f_name_to() functions. - BUILD CHANGES: + DEVELOPER RELATED: - - Handle an operating system that use mkdev() in place of makedev(). + - Several diffs in the patches dir now use the proper --enable-FOO + configure option instead of --with-FOO to turn on the inclusion of + the newly patched feature. - - Improved configure to better handle cross-compiling. + - The testsuite now sets HOME so that it won't be affecting by a file + such as ~/.popt.