| blob | 69c116a626d5314fce5ad9f02ae17141bccc150a |
1 NEWS for rsync 2.6.4 (UNRELEASED)
2 Protocol: 29 (changed)
3 Changes since 2.6.3:
5 OUTPUT CHANGES:
7 - When rsync deletes a directory and outputs a verbose message about
8 it, it now appends a trailing slash to the name instead of (only
9 sometimes) outputting a preceding "directory " string.
11 - The --stats output will contain file-list time-statistics if both
12 sides are 2.6.4, or if the local side is 2.6.4 and the files are
13 being pushed (since the stats come from the sending side).
14 (Requires protocol 29 for a pull.)
16 - The "%o" (operation) log format now has a third value (besides "send"
17 and "recv"): "del." (with trailing dot to make it 4 chars). This
18 changes the way deletions are logged in the daemon's log file.
20 BUG FIXES:
22 - Restore the list-clearing behavior of "!" in a .cvsignore file (2.6.3
23 was only treating it as a special token in an rsync include/exclude
24 file).
26 - The combination of --verbose and --dry-run now mentions the full list
27 of changes that would be output without --dry-run.
29 - Avoid a mkdir warning when removing a directory in the destination
30 that already exists in the --backup-dir.
32 - An OS that has a binary mode for its files (such as cygwin) needed
33 setmode(fd, O_BINARY) called on the temp-file we opened with
34 mkstemp(). (Fix derived from the cygwin's 2.6.3 rsync package.)
36 - Fixed a potential hang when verbosity is high, the client side is
37 the sender, and the file-list is large.
39 - We now check if the OS doesn't support using mknod() for creating
40 FIFOs and sockets, and compile-in using mkfifo() and socket() when
41 necessary.
43 - Fixed an off-by-one error in the handling of --max-delete=N.
45 - One place in the code wasn't checking if fork() failed.
47 - The "ignore nonreadable" daemon parameter used to erroneously affect
48 symlinks that pointed to a non-existent file. This has been fixed.
50 - If the OS does not have lchown() and a chown() of a symlink will
51 affect the referent of a symlink (as it should), we no longer try
52 to set the user and group of a symlink.
54 - The generator now properly runs the hard-link loop and the dir-time
55 rewriting loop after we're sure that the redo phase is complete.
57 - When --backup was specified with --partial-dir=DIR (where DIR is a
58 relative path), the backup code was erroneously trying to backup a
59 file that was put into the partial-dir.
61 - One call to flush_write_file() was not being checked for an error.
63 - The --no-relative option was not being sent from the client to a
64 server sender.
66 - If an rsync daemon specified "dont compress = ..." for a file and the
67 client tried to specify --compress, the libz code was not handling a
68 compression level of 0 properly. This could cause a transfer failure
69 if the block-size for a file was large enough (e.g. rsync might have
70 exited with an error for large files).
72 - Fixed a bug that would sometimes surface when using --compress and
73 sending a file with a block-size larger than 64K (either manually
74 specified, or computed due to the file being really large). Prior
75 versions of rsync would sometimes fail to to decompress the data
76 properly, and thus the transferred file would fail its verification.
78 - If a daemon can't open the specified log file (i.e. syslog is not
79 being used), die without crashing. We also output an error about
80 the failure on stderr (which will only be seen if --no-detach was
81 specified).
83 - A local transfer no longer duplicates all its include/exclude options
84 (since the forked process already has a copy of the exclude list,
85 there's no need to send them a set of duplicates).
87 - When --progress is specified, the output of items that the generator
88 is creating (e.g. dirs, symlinks) is now integrated into the progress
89 output without overlapping it. (Requires protocol 29.)
91 ENHANCEMENTS:
93 - Rsync now supports popt's option aliases, which means that you can
94 use /etc/popt and/or ~/.popt to create your own option aliases.
96 - Added the --delete-during (--del) option which will delete files
97 from on the receiving side incrementally as each directory in the
98 transfer is being processed. This makes it more efficient than the
99 default, before-the-transfer behavior, which is now available as
100 --delete-before (that is still the default --delete-WHEN option that
101 will be chosen if --delete or --delete-excluded is specified without
102 a --delete-WHEN choice). All the --del* options infer --delete, so
103 an rsync daemon that refuses "delete" will still refuse to allow any
104 file-deleting options.
106 - All the --delete-WHEN options are now more memory efficient:
107 Previously an entire duplicate set of file-list objects was created
108 on the receiving side for the entire destination hierarchy. The new
109 algorithm only creates one directory of objects at a time.
111 - Added support for specifying multiple --compare-dest or --link-dest
112 options, but only of a single type. (Promoted from the patches dir
113 and enhanced.)
115 - Added the --max-size option. (Promoted from the patches dir.)
117 - The daemon-mode options were separated from the normal rsync options
118 so that they can't be mixed together. This makes it impossible to
119 start a daemon that had improper default option values that could
120 cause problems when a client connects (e.g. a hang or an abort).
122 - The --bwlimit option may now be used in combination with --daemon
123 to specify both a default value for the daemon side and a value
124 that cannot be exceeded by a user-specified --bwlimit option.
126 - Added the "port" parameter to the rsyncd.conf file. (Promoted from
127 the patches dir.) Also added "address". A command-line option
128 will take precedence over a config-file option, as expected.
130 - In _exit_cleanup(): when we are exiting with a partially-received
131 file, we now flush any data in the write-cache before closing the
132 partial file.
134 - The --inplace support was enhanced to work with --compare-dest and
135 --link-dest. (Requires protocol 29.)
137 - Added the --dirs (-d) option for an easier way to copy directories
138 without recursion.
140 - Added the --list-only option which is mainly a way for the client to
141 put the server into listing mode without needing to resort to any
142 internal option kluges (e.g. the age-old use of "-r --exclude="/*/*"
143 for a non-recursive listing). This option is used automatically
144 (behind the scenes) when a modern rsync speaks to a modern daemon,
145 but may also be specified manually if you want to force the use of
146 the --list-only option over a remote-shell connection.
148 - Added the --omit-dir-times (-O) option, which will avoid updating
149 the modified time for directories when --times was specified. This
150 option will avoid an extra pass through the file-list at the end of
151 the transfer (to tweak all the directory times), which can result in
152 an appreciable speedup for a really large transfer. (Promoted from
153 the patches dir.)
155 - Added the --filter (-f) option and its helper option, -F. Filter
156 rules are an extension to the existing include/exclude handling
157 that also supports nested filter files as well as per-directory
158 filter files (like .cvsignore, but with full filter-rule parsing).
159 This new option was chosen in order to ensure that all existing
160 include/exclude processing remained 100% compatible with older
161 versions. Protocol 29 is needed for full filter-rule support, but
162 backward-compatible rules work with earlier protocol versions.
163 (Promoted from the patches dir and enhanced.)
165 - Added the --delay-updates option that puts all updated files into
166 a temporary directory (by default ".~tmp~", but settable via the
167 --partial-dir=DIR option) until the end of the transfer. This
168 makes the updates a little more atomic for a large transfer.
170 - If rsync is put into the background, any output from --progress is
171 reduced.
173 - Documented the "max verbosity" setting for rsyncd.conf. (This
174 setting was added a couple releases ago, but left undocumented.)
176 - The sender and the generator now double-check the file-list index
177 they are given, and refuse to try to do a file transfer on a
178 non-file index (since that would indicate that something had gone
179 very wrong).
181 - Added the --itemize-changes (-i) option, which is a way to output a
182 more detailed list of what files changed in any way and how they
183 changed. The effect is the same as specifying a --log-format of
184 "%i %n%L" (see the rsyncd.conf manpage). Works with --dry-run too.
186 - Added the --fuzzy option, which attempts to find a basis file for a
187 file that is being created from scratch. The current algorithm
188 only looks in the destination directory for the created file, but
189 it does attempt to find a match based on size/mod-time (in case the
190 file was renamed with no other changes) as well as based on a fuzzy
191 name-matching algorithm. This option requires protocol 29 because
192 it needs the new file-sorting order. (Promoted from patches dir
193 and enhanced.)
195 - Added the --remove-sent-files option, which lets you move files
196 between systems.
198 - When building under windows, the default for --daemon is now to
199 avoid detaching, requiring the new --detach option to force rsync
200 to detach.
202 - Improved the option descriptions in the --help text.
204 SUPPORT FILES:
206 - Added atomic-rsync to the support dir: a perl script that will
207 transfer some files using rsync, and then move the updated files into
208 place all at once at the end of the transfer. Only works when
209 pulling, and uses --link-dest and a parallel hierarchy of files to
210 effect its update.
212 - Added mnt-excl to the support dir: a perl script that takes the
213 /proc/mounts file and translates it into a set of excludes that will
214 exclude all mount points (even mapped mounts to the same disk). The
215 excludes are made relative to the specified source dir and properly
216 anchored.
218 - Added savetransfer.c to the support dir: a C program that can make
219 a copy of all the data that flows over the wire. This lets you test
220 for data corruption (by saving the data on both the sending side and
221 the receiving side) or provides a way to help debug a protocol error.
223 - Added rrsync to the support dir: this is my version of Joe Smith's
224 restricted rsync perl script. This helps to ensure that only certain
225 rsync commands can be run by an ssh invocation.
227 INTERNAL:
229 - Added better checking of the checksum-header values that come over
230 the socket.
232 - Merged a variety of file-deleting functions into a single function so
233 that it is easier to maintain.
235 - Improved the type of some variables (particularly blocksize vars) for
236 consistency and proper size.
238 - Got rid of the uint64 type (which we didn't need).
240 - Use a slightly more compatible set of core #include directives.
242 - Defined int32 in a way that ensures that the build dies if we can't
243 find a variable with at least 32 bits.
245 - The daemon's "read only" config item now sets an internal read_only
246 variable that makes extra sure that no write/delete calls on the
247 read-only side can succeed.
249 PROTOCOL DIFFERENCES FOR VERSION 29:
251 - A 16-bit flag-word is transmitted after every file-list index. This
252 indicates what is changing between the sender and the receiver. The
253 generator now transmits an index and a flag-word to indicate when
254 dirs and symlinks have changed (instead of producing a message),
255 which makes the outputting of the information more consistent and
256 less prone to screen corruption (because either the receiver or the
257 sender is now outputting all the file-change info).
259 - If --inplace is specified, the generator flags any transfer that is
260 using an alternate basis file so that the sender can use the entire
261 file in the rsync algorithm (unlike a normal --inplace update).
263 - The sending of exclude names is done using filter-rule syntax. This
264 means that all names have a prefixed rule indicator, even excludes
265 (which used to be sent as a bare pattern, when possible). The -C
266 option will include the per-dir .cvsignore merge file in the list of
267 filter rules so it is positioned correctly (unlike in some older
268 transfer scenarios).
270 - Rsync sorts the filename list in a different way: it sorts the subdir
271 names after the non-subdir names for each dir's contents, and it
272 always puts a dir's contents immediately after the dir's name in the
273 list. (Previously an item named "foo.txt" would sort in between
274 directory "foo/" and "foo/bar".)
276 - When talking to a protocol 29 rsync daemon, a list-only request
277 is able to note this before the options are sent over the wire and
278 the new --list-only option is included in the options.
280 - When the --stats bytes are sent over the wire (or stored in a batch),
281 they now include two elapsed-time values: one for how long it took to
282 build the file-list, and one for how long it took to send it over the
283 wire (each expressed in thousandths of a second).
285 - When --delete-excluded is specified with some filter excludes, a
286 client sender will now initiate a send of the filter rules to the
287 receiver (older protocols used to omit the sending of excludes in
288 this situation since there were no receiver-specific rules that
289 survived --delete-excluded back then). Note that, as with all the
290 filter-list sending, only items that are significant to the other
291 side will actually be sent over the wire, so the filter-rule list
292 is often empty in this scenario.
294 - A protocol-29 batch file includes a bit for the setting of the --dirs
295 option. Also, the shell script created by --write-batch will use the
296 --filter option instead of --exclude-from to capture any filter rules.
298 BUILD CHANGES:
300 - Handle an operating system that use mkdev() in place of makedev().
302 - Improved configure to better handle cross-compiling.