X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/fbe2aba2e7c0e9836f57617e259d354cf956c56a..9118a09c770b6ae6f136395c087e76e3768167a8:/NEWS diff --git a/NEWS b/NEWS index e5372b6f..7725b48a 100644 --- a/NEWS +++ b/NEWS @@ -1,19 +1,40 @@ NEWS for rsync 2.6.4 (UNRELEASED) -Protocol: 28 (unchanged) +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 default "log format" for a daemon rsync with "transfer logging" + enabled has changed to put the file size prior to the file name and + also to add the destination of a symlink (e.g. "foo -> bar"). The + rsyncstats perl script was updated to handle this (it's now in the + "support" directory). If you depend on the old format, just set it + in your rsyncd.conf file. + 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 cygwin0 needed setmode(fd, O_BINARY) called on the temp-file we opened with - mkstemp(). (Fix picked up from the cygwin package.) + 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. @@ -26,17 +47,60 @@ Changes since 2.6.3: - One place in the code wasn't checking if fork() failed. - - The "ignore nonreadable" daemon parameter no longer affects symlinks - that are being copied, even if they point nowhere. + - The "ignore nonreadable" daemon parameter used to erroneously affect + symlinks that pointed to a non-existent file. This has been fixed. + + - If the OS does not have lchown() and its chown() tries to set 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 the OS does not have lchown(), we no longer try to set the user - & group of a symlink (which would either fail or set the referent). + - 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 (i.e. rsync might have + exited with an error for large files). + + - 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). + + - 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: - 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 on 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 (this is 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. + - Added the --copy-dest option, which works like --link-dest except that it includes copies of identical files. @@ -49,19 +113,180 @@ Changes since 2.6.3: - 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 (such as a hang or an abort) when a client connects. + cause problems (e.g. a hang or an abort) when a client connects. - The --bwlimit option may now be used in combination with --daemon - to specify a default value for the daemon side and also a value + 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.) + 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, + --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. + + - 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.) + + - 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. + + 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. + + - 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. + + 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 (resorting to the old-style outputting + of local change-messages for older protocols). + + - If --inplace is specified, the generator sends an extra byte after + the flag-word indicating what kind of basis file is being used for + the transfer (see the FNAMECMP_* defines). This information is used + to optimize the transfer when the basis file is not the destination. + + - 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 encluded in the options sent over the + socket. + + - 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 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. + + - 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. + BUILD CHANGES: - Handle an operating system that use mkdev() in place of makedev(). + + - Improved configure to better handle cross-compiling.