/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision 1.85 - (show annotations)
Tue Jul 16 22:43:51 2002 UTC (11 years, 9 months ago) by kaz
Branch: MAIN
Changes since 1.84: +1 -1 lines
Oops, forgot to set date! Too late, released already.
1 Release Notes for Meta-CVS
2
3 Release 0.19, 2002-07-16:
4
5 When moving multiple files or directories to a subdirectory, a
6 restart is now provided to skip over bad ones and continue.
7
8 Grab no longer scans files if there are only added files, or only removed
9 files. There are no moves to deduce in that case.
10
11 Restore properly creates lost+found at the root of a partial sandbox,
12 rather than at the abstract root of the module.
13
14 Some other algorithmic improvements made.
15
16 The first few sections of a user guide have been written.
17
18 Release 0.18, 2002-07-07:
19
20 Cool new feature: checkout takes an extra argument, which specifies a
21 subdirectory of the project. Specifying a subdirectory results in a ``partial
22 sandbox'', whose root directory is the specified subdirectory of the larger
23 project. The rest of the project is ``invisible'' to that sandbox. A
24 subdirectory argument can also be given to mcvs grab, which will cause it to
25 integrate the new source tree against a subtree of the Meta-CVS project
26 rather than the entire project. The subtree doesn't have to exist; in
27 that case you get an empty sandbox. Adding files to this sandbox will cause
28 the tree to exist in the project.
29
30 Bugfix: mcvs grab was not computing moves properly over small file sets,
31 wrongly treating them as removes and adds.
32
33 Release 0.17, 2002-07-02:
34
35 The create command no longer takes a vendor branch. Instead the symbol
36 ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
37
38 The grab command no longer does useless synchronization on files that
39 are about to be deleted.
40
41 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
42 that have no mapping.
43
44 New restore command; re-enters deleted files into the mapping, under
45 the ``lost+found'' directory, using their F- names as sandbox names.
46
47 Bugfix: when a checkout bails because it is requested over top of an existing
48 working copy, it must not delete that working copy's MCVS sub directory.
49
50 Release 0.16, 2002-06-29:
51
52 Added new heuristics to grab command. Paths are analyzed to determine
53 move distance. Greater distances reduce the confidence in a move.
54 These rules help sort out grabs in a project where similar or
55 duplicate files are subject to parallel moves, the ambiguity being
56 resolved by favoring shorter moves. Word comparisons are case-insensitive
57 now. Common words (those that appear in many files) are ignored when
58 comparing files.
59
60 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
61 up a little bit. Most reporting commands like log or diff no longer
62 operate on meta files by default; they must be explicitly told to do
63 so with --meta or --metaonly. Only the commit command implicitly includes
64 metafiles by default, and so if this is not wanted, --nometa must be
65 selected. The update command remains special; if it is given file
66 arguments, it does not include meta files. If given no arguments, it
67 does a global CVS up across the entire project.
68
69 Release 0.15, 2002-06-25:
70
71 Optimized a string splitting routine which is used heavily for processing
72 paths; the result is a noticeable performance improvement in some commands
73 that process large numbers of files.
74
75 Renamed ``import'' command to ``create''.
76
77 Bugfix: checkout and create showed errors when removing directory, due to
78 broken :postorder support in directory walking function.
79
80 Bugfix: on failure, checkout was failing to delete the MCVS directory when
81 the checkout was directed to an existing directory.
82
83 New feature: ``mcvs grab'' command imports third-party snapshots to a
84 branch. This is invoked in the root directory of the source tree to import.
85 It determines what files have been added and removed in the snapshot, and
86 tries to compute which removes and adds are actually moves. This is done by
87 analyzing the actual contents of the files according to a crude algorithm to
88 do fuzzy comparisons, so that even files which were modified as well as moved
89 are discovered.
90
91 Release 0.14, 2002-06-21:
92
93 Bugfix: mcvs add was broken for files that have no suffix, causing
94 the underlying cvs add to fail. This was broken in 0.7 when type
95 handling was added.
96
97 Release 0.13, 2002-06-06:
98
99 Sandbox synchronization now handles the case of two files having
100 the same timestamp. An error is signaled, with interactive resolution
101 to synchronize either way, or do nothing.
102
103 If a file must be deleted on update, and this cannot be done, it
104 is now a continuable error.
105
106 Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
107 whose suffix is one of the ones cvs ignores by default.
108
109 New command: mcvs remap. The user can move or delete files directly without
110 going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
111 moves and deletions, and reconstruct the mapping accordingly; that is,
112 it remaps the new structure. This command uses inode numbers to identify
113 files; if a file is copied and then the original is deleted, that won't
114 be recognized as a move.
115
116 Release 0.12, 2002-04-18:
117
118 Bugfix: remove was broken in 0.10, fixed now.
119
120 Bugfix: status, diff, etc. work in empty project rather than complaining
121 ``. not known to Meta-CVS''.
122
123 The checkout operation now can now populate an existing directory, including
124 the current working directory (mcvs co -d . modulename). Of course, the
125 target directory cannot be an existing Meta-CVS sandbox.
126 This is a useful feature, which allows sandboxes to blend with an
127 existing directory structure.
128
129 Checkout now uses the same function for generating the sandbox
130 structure as does update. This is now necessary, because local files
131 can be clobbered by the checkout.
132
133 Release 0.11, 2002-04-12:
134
135 Bugfix: when branch invokes rtag, it now takes the CVSROOT information
136 from CVS/Root and passes it via -d. This is necessary because rtag does not
137 look at a local CVS subdirectory for this information, only the
138 -d option or the environment variable.
139
140 Command for listing branches added (list-branches or lb). Also shows
141 what sticky tag the sandbox is updated to.
142
143 Command for switching branches added (switch or sw).
144
145 Merge detects that working copy is on non-branch tag and bails.
146
147 Absolute paths can now be specified as file arguments. These are
148 based from the root directory of the sandbox, not the actual filesystem root
149 directory.
150
151 Release 0.10, 2002-04-03:
152
153 Automatic merging implemented. Branch is created using branch command,
154 and merging from another branch is done using simple merge command.
155 Meta-CVS maintains the tags to keep track of what has been merged
156 from what branch to what branch.
157
158 Bugfix: checkout -d foo bar was complaining about directory bar already
159 existing, even though it should only care about foo.
160
161 The remove command now requires explicit -R option to recursively remove
162 a directory. It has more detailed error reporting.
163
164 The move command has better error reporting.
165
166 Release 0.9, 2002-03-14:
167
168 Bugfix: the .cvsignore file is now subject to tagging, status, etc,
169 (unless --nometa is specified, of course).
170
171 The mcvs filt command takes -r <revision> or -D <date> parameters.
172 This means to retrieve the MAP file as of the specified revision or
173 date and use that mapping to perform the filtering translation,
174 rather than using MAP-LOCAL.
175
176 The mcvs update command takes filename arguments now and also
177 supports the -p option.
178
179 Release 0.8, 2002-03-13:
180
181 Bug fixed in mcvs add; it was not ignoring files that are already
182 listed as :ignore in MCVS/TYPES.
183
184 Bug fixed in mcvs move: a target with a trailing slash is now treated
185 as a directory (if it does not already exist and is a non-directory).
186
187 The -d option of mcvs checkout can now be used to override the checkout
188 directory, which is normally the same as the module name.
189
190 The global options --version, --help, -q, -Q and -e are now supported.
191
192 New global options --error-continue and --error-terminate to disable
193 interactive error handling in two different ways.
194
195 Log level of many messages has changed; many messages have been
196 relegated to debug level.
197
198 The import command now creates a .cvsignore file containing the name
199 MAP-LOCAL.
200
201 Release 0.7, 2002-03-09:
202
203 The import command collects a list of the file suffixes and brings up
204 a text editor to allow the user to edit their CVS keyword expansion
205 behavior. This information is kept in a new metafile called TYPES. The
206 add command also updates TYPES; it identifies any suffixes which are new,
207 and brings up an editor. The F- files now carry suffixes, which
208 simplifies interfacing with CVS, and also allows cvswrappers to work.
209
210 Recursive add works (mcvs add -R ...).
211
212 New command line option --nometa allows metafiles to be excluded from
213 diff, tag, and other commands; without the option they are inserted
214 into the list of files to be processed.
215
216 The commit option now takes an optional list of files or directories,
217 just like tag, diff, and others.
218
219 Release 0.6, 2002-02-16:
220
221 The add operation was horribly broken in 0.5, it is fixed.
222
223 User can interactively select whether to clobber local files or leave
224 everything alone. Effects on the mapping file of a mcvs move are undone,
225 if the restructuring is rolled back, or raises a condition that leads
226 to termination.
227
228 Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
229 during import, and specifies the CVS keyword expansion mode for files
230 having given suffixes, and can also tell Meta-CVS to ignore certain files
231 when importing or adding.
232
233 Release 0.5, 2002-02-10:
234
235 Much improved error handling. Filesystem rearranging code performs
236 sanity checks to prevent adds and moves from accidentally clobbering
237 local files. A rearranging gone bad can be rolled back. Effects
238 of a failed mcvs add can also be rolled back.
239
240 MAP-LOCAL is now sorted in the same way as MAP.
241
242 Release 0.4, 2002-02-04:
243
244 CVS is invoked using internal function resembling the xargs utility,
245 which ensures that multiple command lines are generated if necessary to
246 avoid surpassing the operating system limit on argument and environment
247 vector size. This is important when someone wants to diff or stat a
248 subdirectory, which requires Meta-CVS to pick out the individual files
249 at the CVS level.
250
251 The tag, log, status and annotate commands are now available.
252
253 The MAP file is sorted on F- file names now, not path names. This
254 improves merging, since files do not move within the file when
255 they are renamed.
256
257 Release 0.3, 2002-02-02:
258
259 Process termination done is properly in top level handler, by a nonlocal
260 exit. The program properly indicates failed termination when it exits
261 due to an error condition.
262
263 Corrections are made in the command line option processing. If z is an
264 option that takes an argument, and the argument is -zx, then x is
265 treated as the argument to the option. Long options arguments are
266 recognized properly, according to the --opt=arg convention. The option
267 processing is restructured. Most of the commands now take the
268 appropriate cvs command-specific options.
269
270 The update algorithm performs dupe checking over the map, which could
271 happen during a merge.
272
273 Some more bugfixing has been done to the move command. It was still not
274 handling right some cases of an unversioned file being clobbered. Also,
275 it wasn't renaming a directory containing just one file.
276
277 I did some performance investigation for larger file sets, and
278 ended up rewriting the code that computes filesystem restructuring
279 changes and map duplicates.
280
281 Release 0.2, 2002-01-30:
282
283 Changed official name from MCVS to Meta-CVS. The move command now
284 performs some filesystem tests so it does the right thing when a versioned
285 file is moved over a non-versioned file, or when a file is moved into
286 a directory not known to Meta-CVS. Factored out reading and writing of
287 map files into functions.
288
289 Release 0.1, 2002-01-28:
290
291 Support for mcvs diff -u added. The -R option works for mcvs add command.
292 Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
293 mv command when copying a directory to an existing directory.
294
295 Release 0.0, 2002-01-27:
296
297 This is alpha software. It is not complete, and lacks documentation.
298 However, it is already usable in its present state and is being used for
299 version control by its author. If you can program in Common Lisp and would
300 like to help, take a look through the TODO file. Send me patches, ideas,
301 feature requests.

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