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

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Revision 1.80 - (show annotations)
Sun Jul 7 14:41:54 2002 UTC (11 years, 9 months ago) by kaz
Branch: MAIN
CVS Tags: mcvs-0-18
Changes since 1.79: +1 -1 lines
Release 0.18.
1 Release Notes for Meta-CVS
2
3 Release 0.18, 2002-07-07:
4
5 Cool new feature: checkout takes an extra argument, which specifies a
6 subdirectory of the project. Specifying a subdirectory results in a ``partial
7 sandbox'', whose root directory is the specified subdirectory of the larger
8 project. The rest of the project is ``invisible'' to that sandbox. A
9 subdirectory argument can also be given to mcvs grab, which will cause it to
10 integrate the new source tree against a subtree of the Meta-CVS project
11 rather than the entire project. The subtree doesn't have to exist; in
12 that case you get an empty sandbox. Adding files to this sandbox will cause
13 the tree to exist in the project.
14
15 Bugfix: mcvs grab was not computing moves properly over small file sets,
16 wrongly treating them as removes and adds.
17
18 Release 0.17, 2002-07-02:
19
20 The create command no longer takes a vendor branch. Instead the symbol
21 ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
22
23 The grab command no longer does useless synchronization on files that
24 are about to be deleted.
25
26 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
27 that have no mapping.
28
29 New restore command; re-enters deleted files into the mapping, under
30 the ``lost+found'' directory, using their F- names as sandbox names.
31
32 Bugfix: when a checkout bails because it is requested over top of an existing
33 working copy, it must not delete that working copy's MCVS sub directory.
34
35 Release 0.16, 2002-06-29:
36
37 Added new heuristics to grab command. Paths are analyzed to determine
38 move distance. Greater distances reduce the confidence in a move.
39 These rules help sort out grabs in a project where similar or
40 duplicate files are subject to parallel moves, the ambiguity being
41 resolved by favoring shorter moves. Word comparisons are case-insensitive
42 now. Common words (those that appear in many files) are ignored when
43 comparing files.
44
45 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
46 up a little bit. Most reporting commands like log or diff no longer
47 operate on meta files by default; they must be explicitly told to do
48 so with --meta or --metaonly. Only the commit command implicitly includes
49 metafiles by default, and so if this is not wanted, --nometa must be
50 selected. The update command remains special; if it is given file
51 arguments, it does not include meta files. If given no arguments, it
52 does a global CVS up across the entire project.
53
54 Release 0.15, 2002-06-25:
55
56 Optimized a string splitting routine which is used heavily for processing
57 paths; the result is a noticeable performance improvement in some commands
58 that process large numbers of files.
59
60 Renamed ``import'' command to ``create''.
61
62 Bugfix: checkout and create showed errors when removing directory, due to
63 broken :postorder support in directory walking function.
64
65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
66 the checkout was directed to an existing directory.
67
68 New feature: ``mcvs grab'' command imports third-party snapshots to a
69 branch. This is invoked in the root directory of the source tree to import.
70 It determines what files have been added and removed in the snapshot, and
71 tries to compute which removes and adds are actually moves. This is done by
72 analyzing the actual contents of the files according to a crude algorithm to
73 do fuzzy comparisons, so that even files which were modified as well as moved
74 are discovered.
75
76 Release 0.14, 2002-06-21:
77
78 Bugfix: mcvs add was broken for files that have no suffix, causing
79 the underlying cvs add to fail. This was broken in 0.7 when type
80 handling was added.
81
82 Release 0.13, 2002-06-06:
83
84 Sandbox synchronization now handles the case of two files having
85 the same timestamp. An error is signaled, with interactive resolution
86 to synchronize either way, or do nothing.
87
88 If a file must be deleted on update, and this cannot be done, it
89 is now a continuable error.
90
91 Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
92 whose suffix is one of the ones cvs ignores by default.
93
94 New command: mcvs remap. The user can move or delete files directly without
95 going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
96 moves and deletions, and reconstruct the mapping accordingly; that is,
97 it remaps the new structure. This command uses inode numbers to identify
98 files; if a file is copied and then the original is deleted, that won't
99 be recognized as a move.
100
101 Release 0.12, 2002-04-18:
102
103 Bugfix: remove was broken in 0.10, fixed now.
104
105 Bugfix: status, diff, etc. work in empty project rather than complaining
106 ``. not known to Meta-CVS''.
107
108 The checkout operation now can now populate an existing directory, including
109 the current working directory (mcvs co -d . modulename). Of course, the
110 target directory cannot be an existing Meta-CVS sandbox.
111 This is a useful feature, which allows sandboxes to blend with an
112 existing directory structure.
113
114 Checkout now uses the same function for generating the sandbox
115 structure as does update. This is now necessary, because local files
116 can be clobbered by the checkout.
117
118 Release 0.11, 2002-04-12:
119
120 Bugfix: when branch invokes rtag, it now takes the CVSROOT information
121 from CVS/Root and passes it via -d. This is necessary because rtag does not
122 look at a local CVS subdirectory for this information, only the
123 -d option or the environment variable.
124
125 Command for listing branches added (list-branches or lb). Also shows
126 what sticky tag the sandbox is updated to.
127
128 Command for switching branches added (switch or sw).
129
130 Merge detects that working copy is on non-branch tag and bails.
131
132 Absolute paths can now be specified as file arguments. These are
133 based from the root directory of the sandbox, not the actual filesystem root
134 directory.
135
136 Release 0.10, 2002-04-03:
137
138 Automatic merging implemented. Branch is created using branch command,
139 and merging from another branch is done using simple merge command.
140 Meta-CVS maintains the tags to keep track of what has been merged
141 from what branch to what branch.
142
143 Bugfix: checkout -d foo bar was complaining about directory bar already
144 existing, even though it should only care about foo.
145
146 The remove command now requires explicit -R option to recursively remove
147 a directory. It has more detailed error reporting.
148
149 The move command has better error reporting.
150
151 Release 0.9, 2002-03-14:
152
153 Bugfix: the .cvsignore file is now subject to tagging, status, etc,
154 (unless --nometa is specified, of course).
155
156 The mcvs filt command takes -r <revision> or -D <date> parameters.
157 This means to retrieve the MAP file as of the specified revision or
158 date and use that mapping to perform the filtering translation,
159 rather than using MAP-LOCAL.
160
161 The mcvs update command takes filename arguments now and also
162 supports the -p option.
163
164 Release 0.8, 2002-03-13:
165
166 Bug fixed in mcvs add; it was not ignoring files that are already
167 listed as :ignore in MCVS/TYPES.
168
169 Bug fixed in mcvs move: a target with a trailing slash is now treated
170 as a directory (if it does not already exist and is a non-directory).
171
172 The -d option of mcvs checkout can now be used to override the checkout
173 directory, which is normally the same as the module name.
174
175 The global options --version, --help, -q, -Q and -e are now supported.
176
177 New global options --error-continue and --error-terminate to disable
178 interactive error handling in two different ways.
179
180 Log level of many messages has changed; many messages have been
181 relegated to debug level.
182
183 The import command now creates a .cvsignore file containing the name
184 MAP-LOCAL.
185
186 Release 0.7, 2002-03-09:
187
188 The import command collects a list of the file suffixes and brings up
189 a text editor to allow the user to edit their CVS keyword expansion
190 behavior. This information is kept in a new metafile called TYPES. The
191 add command also updates TYPES; it identifies any suffixes which are new,
192 and brings up an editor. The F- files now carry suffixes, which
193 simplifies interfacing with CVS, and also allows cvswrappers to work.
194
195 Recursive add works (mcvs add -R ...).
196
197 New command line option --nometa allows metafiles to be excluded from
198 diff, tag, and other commands; without the option they are inserted
199 into the list of files to be processed.
200
201 The commit option now takes an optional list of files or directories,
202 just like tag, diff, and others.
203
204 Release 0.6, 2002-02-16:
205
206 The add operation was horribly broken in 0.5, it is fixed.
207
208 User can interactively select whether to clobber local files or leave
209 everything alone. Effects on the mapping file of a mcvs move are undone,
210 if the restructuring is rolled back, or raises a condition that leads
211 to termination.
212
213 Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
214 during import, and specifies the CVS keyword expansion mode for files
215 having given suffixes, and can also tell Meta-CVS to ignore certain files
216 when importing or adding.
217
218 Release 0.5, 2002-02-10:
219
220 Much improved error handling. Filesystem rearranging code performs
221 sanity checks to prevent adds and moves from accidentally clobbering
222 local files. A rearranging gone bad can be rolled back. Effects
223 of a failed mcvs add can also be rolled back.
224
225 MAP-LOCAL is now sorted in the same way as MAP.
226
227 Release 0.4, 2002-02-04:
228
229 CVS is invoked using internal function resembling the xargs utility,
230 which ensures that multiple command lines are generated if necessary to
231 avoid surpassing the operating system limit on argument and environment
232 vector size. This is important when someone wants to diff or stat a
233 subdirectory, which requires Meta-CVS to pick out the individual files
234 at the CVS level.
235
236 The tag, log, status and annotate commands are now available.
237
238 The MAP file is sorted on F- file names now, not path names. This
239 improves merging, since files do not move within the file when
240 they are renamed.
241
242 Release 0.3, 2002-02-02:
243
244 Process termination done is properly in top level handler, by a nonlocal
245 exit. The program properly indicates failed termination when it exits
246 due to an error condition.
247
248 Corrections are made in the command line option processing. If z is an
249 option that takes an argument, and the argument is -zx, then x is
250 treated as the argument to the option. Long options arguments are
251 recognized properly, according to the --opt=arg convention. The option
252 processing is restructured. Most of the commands now take the
253 appropriate cvs command-specific options.
254
255 The update algorithm performs dupe checking over the map, which could
256 happen during a merge.
257
258 Some more bugfixing has been done to the move command. It was still not
259 handling right some cases of an unversioned file being clobbered. Also,
260 it wasn't renaming a directory containing just one file.
261
262 I did some performance investigation for larger file sets, and
263 ended up rewriting the code that computes filesystem restructuring
264 changes and map duplicates.
265
266 Release 0.2, 2002-01-30:
267
268 Changed official name from MCVS to Meta-CVS. The move command now
269 performs some filesystem tests so it does the right thing when a versioned
270 file is moved over a non-versioned file, or when a file is moved into
271 a directory not known to Meta-CVS. Factored out reading and writing of
272 map files into functions.
273
274 Release 0.1, 2002-01-28:
275
276 Support for mcvs diff -u added. The -R option works for mcvs add command.
277 Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
278 mv command when copying a directory to an existing directory.
279
280 Release 0.0, 2002-01-27:
281
282 This is alpha software. It is not complete, and lacks documentation.
283 However, it is already usable in its present state and is being used for
284 version control by its author. If you can program in Common Lisp and would
285 like to help, take a look through the TODO file. Send me patches, ideas,
286 feature requests.

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