Make idev, hlink and file_struct + strings use allocation
[rsync/rsync.git] / NEWS
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1NEWS for rsync 2.6.1 (UNRELEASED)
2Protocol: 27 (unchanged)
3Changes since 2.6.0:
4
5 ENHANCEMENTS:
6
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7 * Lower memory use and more optimal transfer of data over
8 the socket (see the INTERNAL section for details).
9
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10 * The RSYNC_PROXY environment variable can now contain a
11 "USER:PASS@" prefix before the "HOST:PORT" information.
12 (Bardur Arantsson)
13
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14 * The --progress output now mentions how far along in the
15 transfer we are, including both a count of files transferred
16 and a percentage of the total file-count that we're processed.
17
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18 BUG FIXES:
19
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20 * When -x (--one-file-system) is combined with -L (--copy-links)
21 or --copy-unsafe-links, no symlinked files are skipped, even
22 if the referant file is on a different filesystem.
23
823edc68 24 * The --link-dest code now works properly for a non-root user
5d196694 25 when the UIDs of the source and destination differ and -o was
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26 specified, and when the group of the source can't be used on
27 the destination and -g was specified. (Wayne Davison)
28
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29 * Fixed a bug in the handling of -H (hard-links) that might
30 cause the expanded PATH/NAME value of the current item to
31 get overwritten (due to an expanded-name caching bug).
32 (Wayne Davison)
823edc68 33
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34 * We now reset the "new data has been sent" flag at the start
35 of each file we send. This makes sure that an interrupted
36 transfer with the --partial option set doesn't keep a shorter
37 temp file than the current basis file when no new data has been
38 transfered over the wire for that file. (Wayne Davison)
823edc68 39
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40 * Fixed a byte-order problem in --batch-mode on big-endian
41 machines. (Jay Fenlason)
42
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43 * Fixed configure bug when running "./configure --disable-ipv6".
44 (Wayne Davison)
45
46 * Fixed "make test" bug when build dir is not the source dir.
47
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48 * When using --cvs-exclude, the exclude items we get from a
49 directory's .cvsignore file once again only affect that one
50 directory (and not all following directories too).
51
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52 * When transferring a file that has group 0 with -g specified
53 (typically via -a) and not enough privs to retain the group,
6609a9f1 54 rsync no longer complains about "chown" failing.
b0a93231 55
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56 * When specifying the USER@HOST: prefix for a file, the USER
57 part can now contain an '@', if needed (i.e. the last '@'
58 is used to find the HOST, not the first).
59
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60 * Fixed some bugs in the handling of group IDs for non-root
61 users: (1) It properly handles a group that the sender didn't
62 have a name for (it would previously skip changing the group
63 on any files in that group). (2) If --numeric-ids is used,
64 rsync no longer attempts to set groups that the user doesn't
65 have the permission to set.
66
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67 INTERNAL:
68
86c4601e 69 * Most of the I/O is now buffered, which results in a pretty
a18381ac 70 large speedup when running under MS Windows. (Craig Barratt)
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71
72 * Optimizations to the name-handling/comparing code have made
0a007489 73 some significant reductions in user-CPU time for large file
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74 sets. (Wayne Davison)
75
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76 * Some variable-type cleanup that makes the code more consistent.
77 (Wayne Davison)
78
279b1c1e 79 * Reduced memory requirements of hard link preservation.
0a007489 80 (J.W. Schultz)
279b1c1e 81
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82 * Implemented a new algorithm for hard-link handling that speeds
83 up the code significantly. (J.W. Schultz and Wayne Davison)
84
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85 * The --hard-link option now uses the first existing file in the
86 group of linked files as the basis for the transfer. This
87 prevents the sub-optimal transfer of a file's data when a new
88 hardlink is added on the sending side and it sorts alphabetically
89 earlier in the list than the files that are already present on the
90 receiving side.
91
1a62c49d 92 * Got rid of support for protocol versions 17 and 18 (which are
0a007489 93 both over 6 years old). (Wayne Davison)
aa953c32 94
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95 * More optimal data transmission for --hard-links (protocol 28).
96
97 * More optimal data transmission for --checksum (protocol 28).
98
64f21c31 99 * Less memory is used when --checksum is specified.
1a62c49d 100
64f21c31 101 * Less memory is used in the file list (a per-file savings).
0a007489 102
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103 * Changed hardlink info and file_struct + strings to use
104 allocation pools. This reduces memory use for large
105 filesets and permits freeing memory to the OS. (J.W. Schultz)
106
442743b8 107 * The 2 pipes used between the receiver and generator processes
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108 (which are forked on the same machine) were reduced to 1 pipe
109 and the protocol improved so that (1) it is now impossible to
110 have the "redo" pipe fill up and hang rsync, and (2) trailing
111 messages from the receiver don't get lost on their way through
112 the generator over to the sender (the latter mainly affected
113 hard-link messages). (Wayne Davison)
114
115 * The reading & writing of the file list in batch-mode is now
116 handled by the same code that sends & receives the list over
117 the wire. This makes it much easier to maintain.
442743b8 118
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119 * Optimized the -x (--one-file-system) flag's handling of any
120 mount-point directories we encounter (it no longer scans the
121 contents of the mount-point dirs, just to throw away the data).
122
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123 * Improved the internal uid/gid code to be more portable and
124 a little more optimized.
125
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276877cf 127NEWS for rsync 2.6.0 (1 Jan 2004)
195bd906 128Protocol: 27 (changed)
276877cf 129Changes since 2.5.7:
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130
131 ENHANCEMENTS:
132
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133 * "ssh" is now the default remote shell for rsync. If you want to
134 change this, configure like this: "./configure --with-rsh=rsh".
135
58665d23 136 * Added --files-from, --no-relative, --no-implied-dirs, and --from0.
89855e78 137 Note that --from0 affects the line-ending character for all the
d00daf1f 138 files read by the --*-from options. (Wayne Davison)
89855e78 139
9e83fa99 140 * Length of csum2 is now per-file starting with protocol version
58665d23 141 27. (J.W. Schultz)
195bd906 142
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143 * Per-file dynamic block size is now sqrt(file length). The
144 per-file checksum size is determined according to an algorithm
145 provided by Donovan Baarda which reduces the probability of rsync
146 algorithm corrupting data and falling back using the whole md4
58665d23 147 checksums. (J.W. Schultz, Donovan Baarda)
195bd906 148
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149 * The --stats option no longer includes the (debug) malloc summary
150 unless the verbose option was specified at least twice.
151
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152 * Added a new error/warning code for when files vanish from the
153 sending side. Made vanished source files not interfere with the
154 file-deletion pass when --delete-after was specified.
155
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156 * Various trailing-info sections are now preceded by a newline.
157
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158 BUG FIXES:
159
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160 * Fixed several exclude/include matching bugs when using wild-cards.
161 This has a several user-visible effects, all of which make the
162 matching more consistent and intuitive. This should hopefully not
163 cause anyone problems since it makes the matching work more like
164 what people are expecting. (Wayne Davison)
165
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166 - A pattern with a "**" no longer causes a "*" to match slashes.
167 For example, with "/*/foo/**", "foo" must be 2 levels deep.
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168 [If your string has BOTH "*" and "**" wildcards, changing the
169 "*" wildcards to "**" will provide the old behavior in all
170 versions.]
592f4696 171
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172 - "**/foo" now matches at the base of the transfer (like /foo
173 does). [Use "/**/foo" to get the old behavior in all versions.]
f2fe4903 174
52fa4d78 175 - A non-anchored wildcard term floats to match beyond the base of
f2fe4903 176 the transfer. E.g. "CVS/R*" matches at the end of the path,
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177 just like the non-wildcard term "CVS/Root" does. [Use "/CVS/R*"
178 to get the old behavior in all versions.]
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179
180 - Including a "**" in the match term causes it to be matched
181 against the entire path, not just the name portion, even if
182 there aren't any interior slashes in the term. E.g. "foo**bar"
183 would exclude "/path/foo-bar" (just like before) as well as
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184 "/foo-path/baz-bar" (unlike before). [Use "foo*bar" to get the
185 old behavior in all versions.]
f2fe4903 186
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187 * The exclude list specified in the daemon's config file is now
188 properly applied to the pulled items no matter how deep the
d00daf1f 189 user's file-args are in the source tree. (Wayne Davison)
52e628a8 190
da2bcdd1 191 * For protocol version >= 27, mdfour_tail() is called when the
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192 block size (including checksum_seed) is a multiple of 64.
193 Previously it was not called, giving the wrong MD4 checksum.
194 (Craig Barratt)
256a9e37 195
da2bcdd1 196 * For protocol version >= 27, a 64 bit bit counter is used in
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197 mdfour.c as required by the RFC. Previously only a 32 bit bit
198 counter was used, causing incorrect MD4 file checksums for
199 file sizes >= 512MB - 4. (Craig Barratt)
195bd906 200
da2bcdd1 201 * Fixed a crash bug when interacting with older rsync versions and
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202 multiple files of the same name are destined for the same dir.
203 (Wayne Davison)
204
58665d23 205 * Keep tmp names from overflowing MAXPATHLEN.
89855e78 206
da2bcdd1 207 * Make --link-dest honor the absence of -p, -o, and -g.
fab1f889 208
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209 * Made rsync treat a trailing slash in the destination in a more
210 consistent manner.
211
9b746433 212 * Fixed file I/O error detection. (John Van Essen)
fab1f889 213
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214 * Fixed bogus "malformed address {hostname}" message in rsyncd log
215 when checking IP address against hostnames from "hosts allow"
216 and "hosts deny" parameters in config file.
217
218 * Print heap statistics when verbose >= 2 instead of when >= 1.
219
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220 * Fixed a compression (-z) bug when syncing a mostly-matching file
221 that contains already-compressed data. (Yasuoka Masahiko and
222 Wayne Davison)
223
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224 * Fixed a bug in the --backup code that could cause deleted files
225 to not get backed up.
226
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227 * When the backup code makes new directories, create them with mode
228 0700 instead of 0755 (since the directory permissions in the
229 backup tree are not yet copied from the main tree).
230
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231 * Call setgroups() in a more portable manner.
232
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233 * Improved file-related error messages to better indicate exactly
234 what pathname failed. (Wayne Davison)
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235
236 * Fixed some bugs in the handling of --delete and --exclude when
237 using the --relative (-R) option. (Wayne Davison)
4a7ee79d 238
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239 * Fixed bug that prevented regular files from replacing
240 special files and caused a directory in --link-dest or
241 --compare-dest to block the creation of a file with the
242 same path. A directory still cannot be replaced by a
243 regular file unless --delete specified. (J.W. Schultz)
244
6a7cc46c 245 * Detect and report when open or opendir succeed but read and
52fa4d78 246 readdir fail caused by network filesystem issues and truncated
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247 files. (David Norwood, Michael Brown, J.W. Schultz)
248
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249 * Added a fix that should give ssh time to restore the tty settings
250 if the user presses Ctrl-C at an ssh password prompt.
251
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252 INTERNAL:
253
58665d23 254 * Eliminated vestigial support for old versions that we stopped
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255 supporting. (J.W. Schultz)
256
58665d23 257 * Simplified some of the option-parsing code. (Wayne Davison)
89855e78 258
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259 * Some cleanup made to the exclude code, as well as some new
260 defines added to enhance readability. (Wayne Davison)
261
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262 * Changed the protocol-version code so that it can interact at a
263 lower protocol level than the maximum supported by both sides.
264 Added an undocumented option, --protocol=N, to force the value
265 we advertise to the other side (primarily for testing purposes).
266 (Wayne Davison)