/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Revision 1.175 - (show annotations)
Thu May 1 05:40:54 2003 UTC (10 years, 11 months ago) by kaz
Branch: MAIN
Changes since 1.174: +7 -2 lines
Merging from mcvs-1-0-branch.

* code/generic.lisp (mcvs-generic): The after-synchronization
was going in both directions rather than just MCVS -> tree.

* code/mcvs-main.lisp (mcvs-execute): If not able to open controlling
tty, emit some warning messages that interactive error handling is
disabled. This alerts users to problems, like missing /dev directory
on Cygwin.
1 Release for Meta-CVS
2
3 Release ?.??, 200?-??-??:
4
5 All Lisp symbols are in a package.
6
7 Release 1.0.8, 2003-0?-??:
8
9 The Cygwin /dev/tty problem is partially addressed. The program
10 won't fail if /dev does not exist, but emits a warning message,
11 and disables interactive error handling. The workaround is to use
12 ``mkdir /dev''. This is a CLISP issue; its OPEN function expects the
13 full path to a file to actually exist, but on Cygwin, there are fake
14 /dev/* paths even though /dev does not exist. If a real /dev directory
15 does in fact exist, it does not interfere with these magic paths.
16
17 Release 1.0.7, 2003-04-23:
18
19 New commands sync-to-cvs and sync-from-cvs expose the hard link
20 synchronization algorithm.
21
22 Revamped error recovery logic. To continue in an error situation now
23 consistently means ``take the bold action that may erase data''
24 or ``proceed in the most obvious way to finish the specified job''.
25 It never means ``roll back the operation and bail'', which was
26 confusing.
27
28 Termination is no longer unsafe; the `T' menu command, and the
29 equivalent --error-terminate global option perform all necessary
30 restoration and cleanup.
31
32 Errors that have more information to print, like a list of files or
33 whatever, now indicate it in a standard way which translates to the
34 `I' menu command.
35
36 Chatter output goes to standard error rather than standard output,
37 as do all error messages.
38
39 The interactive error menu now talks to the user using the controlling
40 tty, meaning that it will work even if the input or output of the
41 mcvs command are redirected. If no controlling tty is available,
42 then interactive error handling is disabled; the default behavior
43 is then like --error-terminate but can of course be overridden by
44 --error-continue.
45
46 Release 1.0.6, 2003-04-14:
47
48 The create command detects the existence of text editor backup files (or
49 other junk) in the MCVS directory after the editor is invoked on the
50 TYPES file. The user is prompted regarding their removal. If these files are
51 not removed, cvs import will bring them into the repository.
52
53 When Meta-CVS has to split a large CVS command into two or more
54 invocations with shorter argument lists, it now does not stop when one of
55 these invocations is unsuccessful; it does all of them, and combines
56 their termination indications by a logical AND. There was a bug in this
57 logic also which caused, upon termination failure, a cvs command to be
58 repeated for the same list of files.
59
60 Synchronization logic has been revamped. Unnecessary synchronizations
61 have been removed, which will make some commands run faster.
62 Synchronizations now have specific directions; for instance before
63 a CVS commit or update, changes are pushed from the directory tree to the MCVS
64 directory only, and after the CVS operation, in the reverse direction only.
65
66 Meta-CVS will no longer re-create missing F- files by linking from the
67 directory tree. Doing this causes two problems. One is that if a user
68 manually removes a F- file and do ``mcvs up'', she wants CVS to fetch a clean
69 copy and push it into the tree. She does not want the file to be restored
70 from the tree prior to the CVS update. Secondly, sometimes CVS itself
71 removes files. If we re-create the files, CVS will consider them to
72 be ``in the way''.
73
74 Failures to read from the MAP or MAP-LOCAL files are treated as interactive,
75 continuable errors. By continuing, the user agrees that the behavior will
76 be as if an empty map were read.
77
78 The grab command uses less memory for performing move analysis.
79
80 Release 1.0.5, 2003-02-25:
81
82 Bugfix: some one-argument command line options of CVS must be
83 specifies as a single parameter, with no separation between the
84 option letter and the argument characters. For example:
85
86 cvs log -r rev-1::rev-2 # invalid
87 cvs log -rrev1::rev2 # correct
88
89 Meta-CVS accepts either syntax, but it was generating the first form
90 when calling CVS. Now, *all* one-letter options that have an argument
91 are formatted in the second manner.
92
93 Bugfix: one more waitpid() issue was fixed; on fast machines, under
94 Linux, it was observed that from time to time Meta-CVS would get
95 a -1/ECHILD when waiting for the CVS process.
96
97 Release 1.0.4, 2003-02-20:
98
99 Fix remaining occurences of the CVS ``No child processes'' abort
100 problem, affecting the list-branches command, merge command
101 and the -r option of the filt command.
102
103 Release 1.0.3, 2003-02-12:
104
105 ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
106 ! experimental main trunk of the Meta-CVS codebase, rather than
107 ! the 1.0 branch. But 1.0.4 does contain all of the changes
108 ! described here.
109
110 Fix for the CVS ``No child processes'' abort problem. It turns out
111 that CLISP sets the signal handling action for the SIGCHLD signal
112 to SIG_IGN, which is inherited by child processes across the
113 fork() and execvp() calls used in our mcvs_spawn() function.
114 We correct the problem by resetting the signal handler to SIG_DFL
115 just before executing the new process image.
116
117 New feature, --up option. The argument is a nonnegative integer value
118 (default is zero) which specifies how many sandbox nesting levels to
119 escape out of when locating the sandbox root. This helps work with
120 nested Meta-CVS sandboxes.
121
122 Release 1.0.2, 2003-02-10:
123
124 Bugfix in waitpid logic in the C library for running external processes;
125 we were not dealing with an interrupted waitpid.
126
127 Behavior of mcvs tag is changed: when there are no filename arguments,
128 the whole tree is tagged including the metafiles. In other words, it
129 now works like the commit command.
130
131 Release 1.0.1, 2003-01-30:
132
133 Hard link sync optimization: update of a subset of files, commit, and
134 other operations like log and diff don't need to synchronize all
135 hard links, just the ones operated on.
136
137 The merge and remerge commands support -k option for overriding
138 CVS keyword expansion mode.
139
140 Fixes to getcwd error handling.
141
142 Improvement in install.sh script's logic for locating CLISP installation
143 directory.
144
145 Release 1.0, 2003-01-01:
146
147 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
148 because it adds some new C functions to the Lisp executable.
149
150 Security fix: read-time evaluation was not suppressed when reading
151 structured data, like MCVS/MAP and MCVS/TYPES. This means that it
152 was possible for Alice to check in something that would execute
153 arbitrary code on Bob's computer.
154
155 Optimization: use fork and exec to launch CVS rather than CLISP's
156 run-program function, which indirects through the shell interpreter.
157 (On Cygwin, the spawnvp function is used).
158
159 Performance fix: stat() was being called superfluously by the
160 hard synchronization code, twice for each file.
161
162 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
163 which is the case under Cygwin with newer CLISP releases.
164
165 Release 0.99, 2002-11-17:
166
167 New link command for creating symbolic links.
168
169 Global option -n (dry run---don't modify filesystem) is processed
170 internally now, not just passed to CVS.
171
172 Failure to invoke text editor is handled.
173
174 The -r option of filt is fixed; it has been broken since the change to the
175 new MAP format, because it was reading the raw map representation, not
176 passing it through the right conversion steps that are needed now.
177
178 Bugfix to purge and remap commands: they were fooled by CVS-generated
179 files in the MCVS/CVS directory. Specifically, files having F- names, and a
180 the suffix ,t.
181
182 Bugfix to add logic in directory restructuring: there was the possibility
183 of mistakingly taking a clobbered local file to be a new local version of
184 the added file, instead of replacing it. This could happen if the local
185 file had a future timestamp relative to the one coming from the repository.
186
187 The prop command does not synchronize or write out map if no options are
188 specified.
189
190 Help text added for move and branch commands. Help text for grab rewritten.
191
192 The CVSEDITOR and VISUAL environment variables are now checked, not
193 only EDITOR.
194
195 Release 0.98, 2002-10-13:
196
197 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
198 which could cause information loss if the two differ. It now reads from MAP
199 and writes to MAP. (The property changes propagate to MAP-LOCAL by the
200 update operation invoked by prop, as before).
201
202 Invocation of external programs included in debug trace.
203
204 The filt command does not filter F- names if they are immediately preceded by
205 the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
206 references to the actual F- links, rather than abstract references.
207
208 The update command now supports the -C option, to fetch the repository
209 copy, throwing away local changes. It also now honors the --metaonly
210 and --nometa options.
211
212 The export command has been added, for checking out documents without creating
213 a working copy (no MCVS directory in the root of the checkout).
214
215 The watch command has been added. Note that its syntax differs from that
216 of CVS.
217
218 The watchers, editors, edit, and unedit commands have been added.
219
220 A script called mcvs-upgrade is now included, and installs alongside the mcvs
221 script. This allows the Meta-CVS Lisp image to recompile and patch itself,
222 giving users of binary distributions an easy way to upgrade from source
223 code.
224
225 Release 0.97, 2002-10-06:
226
227 Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
228 (www.cygwin.com). It still relies on hard links, which requires
229 Windows 2000 or XP, and the NTFS filesystem. It probably won't
230 work over FAT.
231
232 New --debug option for verbose output.
233
234 Cleaned up of error messages. Error messages don't specify prefixes like
235 ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
236 ``mcvs:'' prefix when printing the messages in a situation when the error is
237 not continuable.
238
239 Fixed bug introduced in release 0.13: mcvs add -R was adding only
240 directories, effectively ignoring arguments that are regular files.
241 The error-continuation behavior of mcvs add has been revised.
242
243 Trying to rename an object onto itself, or to move the sandbox root
244 directory are no longer silent no-ops, but produce an error.
245
246 The remap command now preserves property lists, and picks up changes
247 in executable permission.
248
249 The grab command now notices when a file changes from having execute
250 permission to not having execute permission.
251
252 Operations on the path . now work in a partial sandbox.
253
254 Release 0.96, 2002-09-21:
255
256 The restore command was left broken during the change to the new
257 filemap format. It is now fixed.
258
259 The grab command now handles execute permission bits properly.
260
261 Some more commands have detailed help.
262
263 There is now a global option -i which specifies a script to be
264 executed. This allows Meta-CVS to be scripted using Lisp. For
265 instance suppose you have the following script and call it
266 list-matching:
267
268 #!/usr/local/bin/mcvs -i
269 (in-sandbox-root-dir
270 (let ((mapping (mapping-read *mcvs-map*))
271 (test-func (eval (read-from-string (pop *args*)))))
272 (dolist (entry mapping)
273 (with-slots (path raw-plist) entry
274 (when (funcall test-func raw-plist)
275 (format t "~a~%" path))))))
276
277 Then to list the names of files whose "importance" property is
278 a value greater than two, run:
279
280 ./list-matching '(lambda (plist)
281 (let ((imp (getf plist :importance)))
282 (and imp (> imp 2))))'
283
284 WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
285 break as Meta-CVS is maintained. There is currently no published set of
286 stable interfaces.
287
288 Release 0.95, 2002-09-16:
289
290 The install.sh script no longer uses a borrowed copy of the clisp-link script
291 or the linkkit directory; these have been removed. These materials
292 are available at every CLISP installation; install.sh now finds them
293 and uses them. Users of non-x86 machines ran into problems because of this
294 because linkkit/clisp.h contains architecture-dependent information.
295
296 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
297 in the map.
298
299 A more detailed help system now exists, though it's not complete. The ``mcvs
300 help'' command acts just like ``mcvs --help'' without any arguments. If given
301 an additional parameter which specifies a Meta-CVS command, it produces more
302 detailed documentation for that comand. Help exists already for a few
303 commands.
304
305 The release number is being warped to 0.95, which means that Meta-CVS is now
306 in beta. It is only five updates away from a 1.0 release.
307
308 Release 0.24, 2002-09-08:
309
310 The mapping entries for both symlinks and files have extensible property
311 lists now. These are stored in the optional fourth and fifth list elements,
312 respectively of the :FILE and :SYMLINK map entries.
313
314 Versioning of the execute permission of files is supported, represented as
315 the :EXEC property of a :FILE mapping entry.
316
317 Some lame syntax is provided for manipulating properties:
318
319 mcvs prop --set foo --clear bar --remove baz main.c list.c
320
321 will set the property FOO to true, set the property BAR to false,
322 and remove the property BAZ, in the files main.c and list.c.
323 The execute permission is represented by the property EXEC.
324
325 Release 0.23, 2002-09-02:
326
327 Bugfix: the grab command notices edited symlinks and incorporates the
328 changes into the mapping.
329
330 The grab command now figures out moved symlinks. Moved symlinks are those
331 whose pathname has changed, but which continue to point to the same object
332 (which may also have been moved).
333
334 Release 0.22, 2002-08-31:
335
336 Symbolic links are now versioned objects. The format of the MAP file
337 changes to accomodate this; the new Meta-CVS will read old MAP
338 files; when it writes it will write the new format. Old Meta-CVS won't
339 read the new format.
340
341 When a new module is created from an existing file tree, symbolic
342 links will be recognized and added. The add command will also add
343 symbolic links. Symbolic links can be renamed and moved; this does
344 nothing with their contents. They can point outside of the sandbox
345 using relative or absolute paths.
346
347 TODO:
348
349 There doesn't exist yet a special command to create symbolic links, nor to
350 retarget them; retargetting a link can be done manually by editing MCVS/MAP
351 and updating. Retargetting a link using the ln -s command, won't
352 backpropagate to the MAP file; an update will clobber the link.
353
354 The grab command does not yet compute symbolic link moves; a moved symbolic
355 link is treated as a remove and add. This will be easy to fix.
356
357 The remap command ignores symlinks.
358
359 Release 0.21, 2002-08-04:
360
361 Syntax of grab command changed. The branch is no longer specified as an
362 argument, but using the -r command option. If no revision is specified with
363 -r, then a -A must be specified to make the grab go to the main trunk. This
364 is a safety feature, since grabbing foreign snapshots to the trunk is almost
365 always wrong, though it could be useful during backup recovery, or for fixing
366 mistakes.
367
368 The way operating system functions are targetted has changed. Instead of
369 relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
370 has its own module for calling foreign functions. This module is portable;
371 it does not depend on the layout of glibc data structures. So Meta-CVS
372 is in theory now portable to other Unixes (provided they have /dev/urandom).
373
374 Release 0.20, 2002-07-27:
375
376 The commit command does a true global commit when given no file or directory
377 parameters, and not given the --metaonly option. This means commiting all
378 changes in the MCVS directory, even if they are in F-files that are not
379 currently mapped.
380
381 Release 0.19, 2002-07-16:
382
383 When moving multiple files or directories to a subdirectory, a
384 restart is now provided to skip over bad ones and continue.
385
386 Grab no longer scans files if there are only added files, or only removed
387 files. There are no moves to deduce in that case.
388
389 Restore properly creates lost+found at the root of a partial sandbox,
390 rather than at the abstract root of the module.
391
392 Some other algorithmic improvements made.
393
394 The first few sections of a user guide have been written.
395
396 Release 0.18, 2002-07-07:
397
398 Cool new feature: checkout takes an extra argument, which specifies a
399 subdirectory of the project. Specifying a subdirectory results in a ``partial
400 sandbox'', whose root directory is the specified subdirectory of the larger
401 project. The rest of the project is ``invisible'' to that sandbox. A
402 subdirectory argument can also be given to mcvs grab, which will cause it to
403 integrate the new source tree against a subtree of the Meta-CVS project
404 rather than the entire project. The subtree doesn't have to exist; in
405 that case you get an empty sandbox. Adding files to this sandbox will cause
406 the tree to exist in the project.
407
408 Bugfix: mcvs grab was not computing moves properly over small file sets,
409 wrongly treating them as removes and adds.
410
411 Release 0.17, 2002-07-02:
412
413 The create command no longer takes a vendor branch. Instead the symbol
414 ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
415
416 The grab command no longer does useless synchronization on files that
417 are about to be deleted.
418
419 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
420 that have no mapping.
421
422 New restore command; re-enters deleted files into the mapping, under
423 the ``lost+found'' directory, using their F- names as sandbox names.
424
425 Bugfix: when a checkout bails because it is requested over top of an existing
426 working copy, it must not delete that working copy's MCVS sub directory.
427
428 Release 0.16, 2002-06-29:
429
430 Added new heuristics to grab command. Paths are analyzed to determine
431 move distance. Greater distances reduce the confidence in a move.
432 These rules help sort out grabs in a project where similar or
433 duplicate files are subject to parallel moves, the ambiguity being
434 resolved by favoring shorter moves. Word comparisons are case-insensitive
435 now. Common words (those that appear in many files) are ignored when
436 comparing files.
437
438 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
439 up a little bit. Most reporting commands like log or diff no longer
440 operate on meta files by default; they must be explicitly told to do
441 so with --meta or --metaonly. Only the commit command implicitly includes
442 metafiles by default, and so if this is not wanted, --nometa must be
443 selected. The update command remains special; if it is given file
444 arguments, it does not include meta files. If given no arguments, it
445 does a global CVS up across the entire project.
446
447 Release 0.15, 2002-06-25:
448
449 Optimized a string splitting routine which is used heavily for processing
450 paths; the result is a noticeable performance improvement in some commands
451 that process large numbers of files.
452
453 Renamed ``import'' command to ``create''.
454
455 Bugfix: checkout and create showed errors when removing directory, due to
456 broken :postorder support in directory walking function.
457
458 Bugfix: on failure, checkout was failing to delete the MCVS directory when
459 the checkout was directed to an existing directory.
460
461 New feature: ``mcvs grab'' command imports third-party snapshots to a
462 branch. This is invoked in the root directory of the source tree to import.
463 It determines what files have been added and removed in the snapshot, and
464 tries to compute which removes and adds are actually moves. This is done by
465 analyzing the actual contents of the files according to a crude algorithm to
466 do fuzzy comparisons, so that even files which were modified as well as moved
467 are discovered.
468
469 Release 0.14, 2002-06-21:
470
471 Bugfix: mcvs add was broken for files that have no suffix, causing
472 the underlying cvs add to fail. This was broken in 0.7 when type
473 handling was added.
474
475 Release 0.13, 2002-06-06:
476
477 Sandbox synchronization now handles the case of two files having
478 the same timestamp. An error is signaled, with interactive resolution
479 to synchronize either way, or do nothing.
480
481 If a file must be deleted on update, and this cannot be done, it
482 is now a continuable error.
483
484 Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
485 whose suffix is one of the ones cvs ignores by default.
486
487 New command: mcvs remap. The user can move or delete files directly without
488 going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
489 moves and deletions, and reconstruct the mapping accordingly; that is,
490 it remaps the new structure. This command uses inode numbers to identify
491 files; if a file is copied and then the original is deleted, that won't
492 be recognized as a move.
493
494 Release 0.12, 2002-04-18:
495
496 Bugfix: remove was broken in 0.10, fixed now.
497
498 Bugfix: status, diff, etc. work in empty project rather than complaining
499 ``. not known to Meta-CVS''.
500
501 The checkout operation now can now populate an existing directory, including
502 the current working directory (mcvs co -d . modulename). Of course, the
503 target directory cannot be an existing Meta-CVS sandbox.
504 This is a useful feature, which allows sandboxes to blend with an
505 existing directory structure.
506
507 Checkout now uses the same function for generating the sandbox
508 structure as does update. This is now necessary, because local files
509 can be clobbered by the checkout.
510
511 Release 0.11, 2002-04-12:
512
513 Bugfix: when branch invokes rtag, it now takes the CVSROOT information
514 from CVS/Root and passes it via -d. This is necessary because rtag does not
515 look at a local CVS subdirectory for this information, only the
516 -d option or the environment variable.
517
518 Command for listing branches added (list-branches or lb). Also shows
519 what sticky tag the sandbox is updated to.
520
521 Command for switching branches added (switch or sw).
522
523 Merge detects that working copy is on non-branch tag and bails.
524
525 Absolute paths can now be specified as file arguments. These are
526 based from the root directory of the sandbox, not the actual filesystem root
527 directory.
528
529 Release 0.10, 2002-04-03:
530
531 Automatic merging implemented. Branch is created using branch command,
532 and merging from another branch is done using simple merge command.
533 Meta-CVS maintains the tags to keep track of what has been merged
534 from what branch to what branch.
535
536 Bugfix: checkout -d foo bar was complaining about directory bar already
537 existing, even though it should only care about foo.
538
539 The remove command now requires explicit -R option to recursively remove
540 a directory. It has more detailed error reporting.
541
542 The move command has better error reporting.
543
544 Release 0.9, 2002-03-14:
545
546 Bugfix: the .cvsignore file is now subject to tagging, status, etc,
547 (unless --nometa is specified, of course).
548
549 The mcvs filt command takes -r <revision> or -D <date> parameters.
550 This means to retrieve the MAP file as of the specified revision or
551 date and use that mapping to perform the filtering translation,
552 rather than using MAP-LOCAL.
553
554 The mcvs update command takes filename arguments now and also
555 supports the -p option.
556
557 Release 0.8, 2002-03-13:
558
559 Bug fixed in mcvs add; it was not ignoring files that are already
560 listed as :ignore in MCVS/TYPES.
561
562 Bug fixed in mcvs move: a target with a trailing slash is now treated
563 as a directory (if it does not already exist and is a non-directory).
564
565 The -d option of mcvs checkout can now be used to override the checkout
566 directory, which is normally the same as the module name.
567
568 The global options --version, --help, -q, -Q and -e are now supported.
569
570 New global options --error-continue and --error-terminate to disable
571 interactive error handling in two different ways.
572
573 Log level of many messages has changed; many messages have been
574 relegated to debug level.
575
576 The import command now creates a .cvsignore file containing the name
577 MAP-LOCAL.
578
579 Release 0.7, 2002-03-09:
580
581 The import command collects a list of the file suffixes and brings up
582 a text editor to allow the user to edit their CVS keyword expansion
583 behavior. This information is kept in a new metafile called TYPES. The
584 add command also updates TYPES; it identifies any suffixes which are new,
585 and brings up an editor. The F- files now carry suffixes, which
586 simplifies interfacing with CVS, and also allows cvswrappers to work.
587
588 Recursive add works (mcvs add -R ...).
589
590 New command line option --nometa allows metafiles to be excluded from
591 diff, tag, and other commands; without the option they are inserted
592 into the list of files to be processed.
593
594 The commit option now takes an optional list of files or directories,
595 just like tag, diff, and others.
596
597 Release 0.6, 2002-02-16:
598
599 The add operation was horribly broken in 0.5, it is fixed.
600
601 User can interactively select whether to clobber local files or leave
602 everything alone. Effects on the mapping file of a mcvs move are undone,
603 if the restructuring is rolled back, or raises a condition that leads
604 to termination.
605
606 Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
607 during import, and specifies the CVS keyword expansion mode for files
608 having given suffixes, and can also tell Meta-CVS to ignore certain files
609 when importing or adding.
610
611 Release 0.5, 2002-02-10:
612
613 Much improved error handling. Filesystem rearranging code performs
614 sanity checks to prevent adds and moves from accidentally clobbering
615 local files. A rearranging gone bad can be rolled back. Effects
616 of a failed mcvs add can also be rolled back.
617
618 MAP-LOCAL is now sorted in the same way as MAP.
619
620 Release 0.4, 2002-02-04:
621
622 CVS is invoked using internal function resembling the xargs utility,
623 which ensures that multiple command lines are generated if necessary to
624 avoid surpassing the operating system limit on argument and environment
625 vector size. This is important when someone wants to diff or stat a
626 subdirectory, which requires Meta-CVS to pick out the individual files
627 at the CVS level.
628
629 The tag, log, status and annotate commands are now available.
630
631 The MAP file is sorted on F- file names now, not path names. This
632 improves merging, since files do not move within the file when
633 they are renamed.
634
635 Release 0.3, 2002-02-02:
636
637 Process termination done is properly in top level handler, by a nonlocal
638 exit. The program properly indicates failed termination when it exits
639 due to an error condition.
640
641 Corrections are made in the command line option processing. If z is an
642 option that takes an argument, and the argument is -zx, then x is
643 treated as the argument to the option. Long options arguments are
644 recognized properly, according to the --opt=arg convention. The option
645 processing is restructured. Most of the commands now take the
646 appropriate cvs command-specific options.
647
648 The update algorithm performs dupe checking over the map, which could
649 happen during a merge.
650
651 Some more bugfixing has been done to the move command. It was still not
652 handling right some cases of an unversioned file being clobbered. Also,
653 it wasn't renaming a directory containing just one file.
654
655 I did some performance investigation for larger file sets, and
656 ended up rewriting the code that computes filesystem restructuring
657 changes and map duplicates.
658
659 Release 0.2, 2002-01-30:
660
661 Changed official name from MCVS to Meta-CVS. The move command now
662 performs some filesystem tests so it does the right thing when a versioned
663 file is moved over a non-versioned file, or when a file is moved into
664 a directory not known to Meta-CVS. Factored out reading and writing of
665 map files into functions.
666
667 Release 0.1, 2002-01-28:
668
669 Support for mcvs diff -u added. The -R option works for mcvs add command.
670 Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
671 mv command when copying a directory to an existing directory.
672
673 Release 0.0, 2002-01-27:
674
675 This is alpha software. It is not complete, and lacks documentation.
676 However, it is already usable in its present state and is being used for
677 version control by its author. If you can program in Common Lisp and would
678 like to help, take a look through the TODO file. Send me patches, ideas,
679 feature requests.

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