/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Revision 1.87 - (show annotations)
Sat Jul 27 14:17:04 2002 UTC (11 years, 8 months ago) by kaz
Branch: MAIN
CVS Tags: mcvs-0-20
Changes since 1.86: +1 -1 lines
Bumping up date.
1 Release Notes for Meta-CVS
2
3 Release 0.20, 2002-07-27:
4
5 The commit command does a true global commit when given no file or directory
6 parameters, and not given the --metaonly option. This means commiting all
7 changes in the MCVS directory, even if they are in F-files that are not
8 currently mapped.
9
10 Release 0.19, 2002-07-16:
11
12 When moving multiple files or directories to a subdirectory, a
13 restart is now provided to skip over bad ones and continue.
14
15 Grab no longer scans files if there are only added files, or only removed
16 files. There are no moves to deduce in that case.
17
18 Restore properly creates lost+found at the root of a partial sandbox,
19 rather than at the abstract root of the module.
20
21 Some other algorithmic improvements made.
22
23 The first few sections of a user guide have been written.
24
25 Release 0.18, 2002-07-07:
26
27 Cool new feature: checkout takes an extra argument, which specifies a
28 subdirectory of the project. Specifying a subdirectory results in a ``partial
29 sandbox'', whose root directory is the specified subdirectory of the larger
30 project. The rest of the project is ``invisible'' to that sandbox. A
31 subdirectory argument can also be given to mcvs grab, which will cause it to
32 integrate the new source tree against a subtree of the Meta-CVS project
33 rather than the entire project. The subtree doesn't have to exist; in
34 that case you get an empty sandbox. Adding files to this sandbox will cause
35 the tree to exist in the project.
36
37 Bugfix: mcvs grab was not computing moves properly over small file sets,
38 wrongly treating them as removes and adds.
39
40 Release 0.17, 2002-07-02:
41
42 The create command no longer takes a vendor branch. Instead the symbol
43 ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
44
45 The grab command no longer does useless synchronization on files that
46 are about to be deleted.
47
48 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
49 that have no mapping.
50
51 New restore command; re-enters deleted files into the mapping, under
52 the ``lost+found'' directory, using their F- names as sandbox names.
53
54 Bugfix: when a checkout bails because it is requested over top of an existing
55 working copy, it must not delete that working copy's MCVS sub directory.
56
57 Release 0.16, 2002-06-29:
58
59 Added new heuristics to grab command. Paths are analyzed to determine
60 move distance. Greater distances reduce the confidence in a move.
61 These rules help sort out grabs in a project where similar or
62 duplicate files are subject to parallel moves, the ambiguity being
63 resolved by favoring shorter moves. Word comparisons are case-insensitive
64 now. Common words (those that appear in many files) are ignored when
65 comparing files.
66
67 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
68 up a little bit. Most reporting commands like log or diff no longer
69 operate on meta files by default; they must be explicitly told to do
70 so with --meta or --metaonly. Only the commit command implicitly includes
71 metafiles by default, and so if this is not wanted, --nometa must be
72 selected. The update command remains special; if it is given file
73 arguments, it does not include meta files. If given no arguments, it
74 does a global CVS up across the entire project.
75
76 Release 0.15, 2002-06-25:
77
78 Optimized a string splitting routine which is used heavily for processing
79 paths; the result is a noticeable performance improvement in some commands
80 that process large numbers of files.
81
82 Renamed ``import'' command to ``create''.
83
84 Bugfix: checkout and create showed errors when removing directory, due to
85 broken :postorder support in directory walking function.
86
87 Bugfix: on failure, checkout was failing to delete the MCVS directory when
88 the checkout was directed to an existing directory.
89
90 New feature: ``mcvs grab'' command imports third-party snapshots to a
91 branch. This is invoked in the root directory of the source tree to import.
92 It determines what files have been added and removed in the snapshot, and
93 tries to compute which removes and adds are actually moves. This is done by
94 analyzing the actual contents of the files according to a crude algorithm to
95 do fuzzy comparisons, so that even files which were modified as well as moved
96 are discovered.
97
98 Release 0.14, 2002-06-21:
99
100 Bugfix: mcvs add was broken for files that have no suffix, causing
101 the underlying cvs add to fail. This was broken in 0.7 when type
102 handling was added.
103
104 Release 0.13, 2002-06-06:
105
106 Sandbox synchronization now handles the case of two files having
107 the same timestamp. An error is signaled, with interactive resolution
108 to synchronize either way, or do nothing.
109
110 If a file must be deleted on update, and this cannot be done, it
111 is now a continuable error.
112
113 Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
114 whose suffix is one of the ones cvs ignores by default.
115
116 New command: mcvs remap. The user can move or delete files directly without
117 going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
118 moves and deletions, and reconstruct the mapping accordingly; that is,
119 it remaps the new structure. This command uses inode numbers to identify
120 files; if a file is copied and then the original is deleted, that won't
121 be recognized as a move.
122
123 Release 0.12, 2002-04-18:
124
125 Bugfix: remove was broken in 0.10, fixed now.
126
127 Bugfix: status, diff, etc. work in empty project rather than complaining
128 ``. not known to Meta-CVS''.
129
130 The checkout operation now can now populate an existing directory, including
131 the current working directory (mcvs co -d . modulename). Of course, the
132 target directory cannot be an existing Meta-CVS sandbox.
133 This is a useful feature, which allows sandboxes to blend with an
134 existing directory structure.
135
136 Checkout now uses the same function for generating the sandbox
137 structure as does update. This is now necessary, because local files
138 can be clobbered by the checkout.
139
140 Release 0.11, 2002-04-12:
141
142 Bugfix: when branch invokes rtag, it now takes the CVSROOT information
143 from CVS/Root and passes it via -d. This is necessary because rtag does not
144 look at a local CVS subdirectory for this information, only the
145 -d option or the environment variable.
146
147 Command for listing branches added (list-branches or lb). Also shows
148 what sticky tag the sandbox is updated to.
149
150 Command for switching branches added (switch or sw).
151
152 Merge detects that working copy is on non-branch tag and bails.
153
154 Absolute paths can now be specified as file arguments. These are
155 based from the root directory of the sandbox, not the actual filesystem root
156 directory.
157
158 Release 0.10, 2002-04-03:
159
160 Automatic merging implemented. Branch is created using branch command,
161 and merging from another branch is done using simple merge command.
162 Meta-CVS maintains the tags to keep track of what has been merged
163 from what branch to what branch.
164
165 Bugfix: checkout -d foo bar was complaining about directory bar already
166 existing, even though it should only care about foo.
167
168 The remove command now requires explicit -R option to recursively remove
169 a directory. It has more detailed error reporting.
170
171 The move command has better error reporting.
172
173 Release 0.9, 2002-03-14:
174
175 Bugfix: the .cvsignore file is now subject to tagging, status, etc,
176 (unless --nometa is specified, of course).
177
178 The mcvs filt command takes -r <revision> or -D <date> parameters.
179 This means to retrieve the MAP file as of the specified revision or
180 date and use that mapping to perform the filtering translation,
181 rather than using MAP-LOCAL.
182
183 The mcvs update command takes filename arguments now and also
184 supports the -p option.
185
186 Release 0.8, 2002-03-13:
187
188 Bug fixed in mcvs add; it was not ignoring files that are already
189 listed as :ignore in MCVS/TYPES.
190
191 Bug fixed in mcvs move: a target with a trailing slash is now treated
192 as a directory (if it does not already exist and is a non-directory).
193
194 The -d option of mcvs checkout can now be used to override the checkout
195 directory, which is normally the same as the module name.
196
197 The global options --version, --help, -q, -Q and -e are now supported.
198
199 New global options --error-continue and --error-terminate to disable
200 interactive error handling in two different ways.
201
202 Log level of many messages has changed; many messages have been
203 relegated to debug level.
204
205 The import command now creates a .cvsignore file containing the name
206 MAP-LOCAL.
207
208 Release 0.7, 2002-03-09:
209
210 The import command collects a list of the file suffixes and brings up
211 a text editor to allow the user to edit their CVS keyword expansion
212 behavior. This information is kept in a new metafile called TYPES. The
213 add command also updates TYPES; it identifies any suffixes which are new,
214 and brings up an editor. The F- files now carry suffixes, which
215 simplifies interfacing with CVS, and also allows cvswrappers to work.
216
217 Recursive add works (mcvs add -R ...).
218
219 New command line option --nometa allows metafiles to be excluded from
220 diff, tag, and other commands; without the option they are inserted
221 into the list of files to be processed.
222
223 The commit option now takes an optional list of files or directories,
224 just like tag, diff, and others.
225
226 Release 0.6, 2002-02-16:
227
228 The add operation was horribly broken in 0.5, it is fixed.
229
230 User can interactively select whether to clobber local files or leave
231 everything alone. Effects on the mapping file of a mcvs move are undone,
232 if the restructuring is rolled back, or raises a condition that leads
233 to termination.
234
235 Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
236 during import, and specifies the CVS keyword expansion mode for files
237 having given suffixes, and can also tell Meta-CVS to ignore certain files
238 when importing or adding.
239
240 Release 0.5, 2002-02-10:
241
242 Much improved error handling. Filesystem rearranging code performs
243 sanity checks to prevent adds and moves from accidentally clobbering
244 local files. A rearranging gone bad can be rolled back. Effects
245 of a failed mcvs add can also be rolled back.
246
247 MAP-LOCAL is now sorted in the same way as MAP.
248
249 Release 0.4, 2002-02-04:
250
251 CVS is invoked using internal function resembling the xargs utility,
252 which ensures that multiple command lines are generated if necessary to
253 avoid surpassing the operating system limit on argument and environment
254 vector size. This is important when someone wants to diff or stat a
255 subdirectory, which requires Meta-CVS to pick out the individual files
256 at the CVS level.
257
258 The tag, log, status and annotate commands are now available.
259
260 The MAP file is sorted on F- file names now, not path names. This
261 improves merging, since files do not move within the file when
262 they are renamed.
263
264 Release 0.3, 2002-02-02:
265
266 Process termination done is properly in top level handler, by a nonlocal
267 exit. The program properly indicates failed termination when it exits
268 due to an error condition.
269
270 Corrections are made in the command line option processing. If z is an
271 option that takes an argument, and the argument is -zx, then x is
272 treated as the argument to the option. Long options arguments are
273 recognized properly, according to the --opt=arg convention. The option
274 processing is restructured. Most of the commands now take the
275 appropriate cvs command-specific options.
276
277 The update algorithm performs dupe checking over the map, which could
278 happen during a merge.
279
280 Some more bugfixing has been done to the move command. It was still not
281 handling right some cases of an unversioned file being clobbered. Also,
282 it wasn't renaming a directory containing just one file.
283
284 I did some performance investigation for larger file sets, and
285 ended up rewriting the code that computes filesystem restructuring
286 changes and map duplicates.
287
288 Release 0.2, 2002-01-30:
289
290 Changed official name from MCVS to Meta-CVS. The move command now
291 performs some filesystem tests so it does the right thing when a versioned
292 file is moved over a non-versioned file, or when a file is moved into
293 a directory not known to Meta-CVS. Factored out reading and writing of
294 map files into functions.
295
296 Release 0.1, 2002-01-28:
297
298 Support for mcvs diff -u added. The -R option works for mcvs add command.
299 Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
300 mv command when copying a directory to an existing directory.
301
302 Release 0.0, 2002-01-27:
303
304 This is alpha software. It is not complete, and lacks documentation.
305 However, it is already usable in its present state and is being used for
306 version control by its author. If you can program in Common Lisp and would
307 like to help, take a look through the TODO file. Send me patches, ideas,
308 feature requests.

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