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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision - (show annotations)
Fri Jan 9 16:03:48 2004 UTC (10 years, 3 months ago) by kaz
Branch: mcvs-1-0-branch
CVS Tags: mcvs-1-0-10
Changes since +5 -0 lines
Releasing 1.0.10.
1 Release Notes for Meta-CVS
3 Release 1.0.10, 2004-01-09:
5 Builds on CLISP 2.32. The lb command no longer produces bogus warning
6 when working copy is sticky to a version tag.
8 Release 1.0.9, 2003-11-24:
10 Failures to open terminal for reasons other than non-existence
11 of the object are handled (e.g. ``no such device'', etc).
13 The --nometa option now works properly in those commands that
14 operate on the whole project when no file arguments are given
15 (tag, update, commit). Also, these commands no longer implicitly
16 include the meta files when file arguments *are* given.
17 These files can be included explicitly with the --meta global option.
19 Release 1.0.8, 2003-06-03:
21 The Cygwin /dev/tty problem is partially addressed. The program
22 won't fail if /dev does not exist, but emits a warning message,
23 and disables interactive error handling. The workaround is to use
24 ``mkdir /dev''. This is a CLISP issue; its OPEN function expects the
25 full path to a file to actually exist, but on Cygwin, there are fake
26 /dev/* paths even though /dev does not exist. If a real /dev directory
27 does in fact exist, it does not interfere with these magic paths.
29 The ``mcvs fi'' command no longer performs expansion on F- names
30 that are preceded by a slash.
32 Release 1.0.7, 2003-04-23:
34 New commands sync-to-cvs and sync-from-cvs expose the hard link
35 synchronization algorithm.
37 Revamped error recovery logic. To continue in an error situation now
38 consistently means ``take the bold action that may erase data''
39 or ``proceed in the most obvious way to finish the specified job''.
40 It never means ``roll back the operation and bail'', which was
41 confusing.
43 Termination is no longer unsafe; the `T' menu command, and the
44 equivalent --error-terminate global option perform all necessary
45 restoration and cleanup.
47 Errors that have more information to print, like a list of files or
48 whatever, now indicate it in a standard way which translates to the
49 `I' menu command.
51 Chatter output goes to standard error rather than standard output,
52 as do all error messages.
54 The interactive error menu now talks to the user using the controlling
55 tty, meaning that it will work even if the input or output of the
56 mcvs command are redirected. If no controlling tty is available,
57 then interactive error handling is disabled; the default behavior
58 is then like --error-terminate but can of course be overridden by
59 --error-continue.
61 Release 1.0.6, 2003-04-14:
63 The create command detects the existence of text editor backup files (or
64 other junk) in the MCVS directory after the editor is invoked on the
65 TYPES file. The user is prompted regarding their removal. If these files are
66 not removed, cvs import will bring them into the repository.
68 When Meta-CVS has to split a large CVS command into two or more
69 invocations with shorter argument lists, it now does not stop when one of
70 these invocations is unsuccessful; it does all of them, and combines
71 their termination indications by a logical AND. There was a bug in this
72 logic also which caused, upon termination failure, a cvs command to be
73 repeated for the same list of files.
75 Synchronization logic has been revamped. Unnecessary synchronizations
76 have been removed, which will make some commands run faster.
77 Synchronizations now have specific directions; for instance before
78 a CVS commit or update, changes are pushed from the directory tree to the MCVS
79 directory only, and after the CVS operation, in the reverse direction only.
81 Meta-CVS will no longer re-create missing F- files by linking from the
82 directory tree. Doing this causes two problems. One is that if a user
83 manually removes a F- file and do ``mcvs up'', she wants CVS to fetch a clean
84 copy and push it into the tree. She does not want the file to be restored
85 from the tree prior to the CVS update. Secondly, sometimes CVS itself
86 removes files. If we re-create the files, CVS will consider them to
87 be ``in the way''.
89 Failures to read from the MAP or MAP-LOCAL files are treated as interactive,
90 continuable errors. By continuing, the user agrees that the behavior will
91 be as if an empty map were read.
93 The grab command uses less memory for performing move analysis.
95 Release 1.0.5, 2003-02-25:
97 Bugfix: some one-argument command line options of CVS must be
98 specifies as a single parameter, with no separation between the
99 option letter and the argument characters. For example:
101 cvs log -r rev-1::rev-2 # invalid
102 cvs log -rrev1::rev2 # correct
104 Meta-CVS accepts either syntax, but it was generating the first form
105 when calling CVS. Now, *all* one-letter options that have an argument
106 are formatted in the second manner.
108 Bugfix: one more waitpid() issue was fixed; on fast machines, under
109 Linux, it was observed that from time to time Meta-CVS would get
110 a -1/ECHILD when waiting for the CVS process.
112 Release 1.0.4, 2003-02-20:
114 Fix remaining occurences of the CVS ``No child processes'' abort
115 problem, affecting the list-branches command, merge command
116 and the -r option of the filt command.
118 Release 1.0.3, 2003-02-12:
120 ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
121 ! experimental main trunk of the Meta-CVS codebase, rather than
122 ! the 1.0 branch. But 1.0.4 does contain all of the changes
123 ! described here.
125 Fix for the CVS ``No child processes'' abort problem. It turns out
126 that CLISP sets the signal handling action for the SIGCHLD signal
127 to SIG_IGN, which is inherited by child processes across the
128 fork() and execvp() calls used in our mcvs_spawn() function.
129 We correct the problem by resetting the signal handler to SIG_DFL
130 just before executing the new process image.
132 New feature, --up option. The argument is a nonnegative integer value
133 (default is zero) which specifies how many sandbox nesting levels to
134 escape out of when locating the sandbox root. This helps work with
135 nested Meta-CVS sandboxes.
137 Release 1.0.2, 2003-02-10:
139 Bugfix in waitpid logic in the C library for running external processes;
140 we were not dealing with an interrupted waitpid.
142 Behavior of mcvs tag is changed: when there are no filename arguments,
143 the whole tree is tagged including the metafiles. In other words, it
144 now works like the commit command.
146 Release 1.0.1, 2003-01-30:
148 Hard link sync optimization: update of a subset of files, commit, and
149 other operations like log and diff don't need to synchronize all
150 hard links, just the ones operated on.
152 The merge and remerge commands support -k option for overriding
153 CVS keyword expansion mode.
155 Fixes to getcwd error handling.
157 Improvement in install.sh script's logic for locating CLISP installation
158 directory.
160 Release 1.0, 2003-01-01:
162 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
163 because it adds some new C functions to the Lisp executable.
165 Security fix: read-time evaluation was not suppressed when reading
166 structured data, like MCVS/MAP and MCVS/TYPES. This means that it
167 was possible for Alice to check in something that would execute
168 arbitrary code on Bob's computer.
170 Optimization: use fork and exec to launch CVS rather than CLISP's
171 run-program function, which indirects through the shell interpreter.
172 (On Cygwin, the spawnvp function is used).
174 Performance fix: stat() was being called superfluously by the
175 hard synchronization code, twice for each file.
177 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
178 which is the case under Cygwin with newer CLISP releases.
180 Release 0.99, 2002-11-17:
182 New link command for creating symbolic links.
184 Global option -n (dry run---don't modify filesystem) is processed
185 internally now, not just passed to CVS.
187 Failure to invoke text editor is handled.
189 The -r option of filt is fixed; it has been broken since the change to the
190 new MAP format, because it was reading the raw map representation, not
191 passing it through the right conversion steps that are needed now.
193 Bugfix to purge and remap commands: they were fooled by CVS-generated
194 files in the MCVS/CVS directory. Specifically, files having F- names, and a
195 the suffix ,t.
197 Bugfix to add logic in directory restructuring: there was the possibility
198 of mistakingly taking a clobbered local file to be a new local version of
199 the added file, instead of replacing it. This could happen if the local
200 file had a future timestamp relative to the one coming from the repository.
202 The prop command does not synchronize or write out map if no options are
203 specified.
205 Help text added for move and branch commands. Help text for grab rewritten.
207 The CVSEDITOR and VISUAL environment variables are now checked, not
208 only EDITOR.
210 Release 0.98, 2002-10-13:
212 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
213 which could cause information loss if the two differ. It now reads from MAP
214 and writes to MAP. (The property changes propagate to MAP-LOCAL by the
215 update operation invoked by prop, as before).
217 Invocation of external programs included in debug trace.
219 The filt command does not filter F- names if they are immediately preceded by
220 the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
221 references to the actual F- links, rather than abstract references.
223 The update command now supports the -C option, to fetch the repository
224 copy, throwing away local changes. It also now honors the --metaonly
225 and --nometa options.
227 The export command has been added, for checking out documents without creating
228 a working copy (no MCVS directory in the root of the checkout).
230 The watch command has been added. Note that its syntax differs from that
231 of CVS.
233 The watchers, editors, edit, and unedit commands have been added.
235 A script called mcvs-upgrade is now included, and installs alongside the mcvs
236 script. This allows the Meta-CVS Lisp image to recompile and patch itself,
237 giving users of binary distributions an easy way to upgrade from source
238 code.
240 Release 0.97, 2002-10-06:
242 Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
243 (www.cygwin.com). It still relies on hard links, which requires
244 Windows 2000 or XP, and the NTFS filesystem. It probably won't
245 work over FAT.
247 New --debug option for verbose output.
249 Cleaned up of error messages. Error messages don't specify prefixes like
250 ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
251 ``mcvs:'' prefix when printing the messages in a situation when the error is
252 not continuable.
254 Fixed bug introduced in release 0.13: mcvs add -R was adding only
255 directories, effectively ignoring arguments that are regular files.
256 The error-continuation behavior of mcvs add has been revised.
258 Trying to rename an object onto itself, or to move the sandbox root
259 directory are no longer silent no-ops, but produce an error.
261 The remap command now preserves property lists, and picks up changes
262 in executable permission.
264 The grab command now notices when a file changes from having execute
265 permission to not having execute permission.
267 Operations on the path . now work in a partial sandbox.
269 Release 0.96, 2002-09-21:
271 The restore command was left broken during the change to the new
272 filemap format. It is now fixed.
274 The grab command now handles execute permission bits properly.
276 Some more commands have detailed help.
278 There is now a global option -i which specifies a script to be
279 executed. This allows Meta-CVS to be scripted using Lisp. For
280 instance suppose you have the following script and call it
281 list-matching:
283 #!/usr/local/bin/mcvs -i
284 (in-sandbox-root-dir
285 (let ((mapping (mapping-read *mcvs-map*))
286 (test-func (eval (read-from-string (pop *args*)))))
287 (dolist (entry mapping)
288 (with-slots (path raw-plist) entry
289 (when (funcall test-func raw-plist)
290 (format t "~a~%" path))))))
292 Then to list the names of files whose "importance" property is
293 a value greater than two, run:
295 ./list-matching '(lambda (plist)
296 (let ((imp (getf plist :importance)))
297 (and imp (> imp 2))))'
299 WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
300 break as Meta-CVS is maintained. There is currently no published set of
301 stable interfaces.
303 Release 0.95, 2002-09-16:
305 The install.sh script no longer uses a borrowed copy of the clisp-link script
306 or the linkkit directory; these have been removed. These materials
307 are available at every CLISP installation; install.sh now finds them
308 and uses them. Users of non-x86 machines ran into problems because of this
309 because linkkit/clisp.h contains architecture-dependent information.
311 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
312 in the map.
314 A more detailed help system now exists, though it's not complete. The ``mcvs
315 help'' command acts just like ``mcvs --help'' without any arguments. If given
316 an additional parameter which specifies a Meta-CVS command, it produces more
317 detailed documentation for that comand. Help exists already for a few
318 commands.
320 The release number is being warped to 0.95, which means that Meta-CVS is now
321 in beta. It is only five updates away from a 1.0 release.
323 Release 0.24, 2002-09-08:
325 The mapping entries for both symlinks and files have extensible property
326 lists now. These are stored in the optional fourth and fifth list elements,
327 respectively of the :FILE and :SYMLINK map entries.
329 Versioning of the execute permission of files is supported, represented as
330 the :EXEC property of a :FILE mapping entry.
332 Some lame syntax is provided for manipulating properties:
334 mcvs prop --set foo --clear bar --remove baz main.c list.c
336 will set the property FOO to true, set the property BAR to false,
337 and remove the property BAZ, in the files main.c and list.c.
338 The execute permission is represented by the property EXEC.
340 Release 0.23, 2002-09-02:
342 Bugfix: the grab command notices edited symlinks and incorporates the
343 changes into the mapping.
345 The grab command now figures out moved symlinks. Moved symlinks are those
346 whose pathname has changed, but which continue to point to the same object
347 (which may also have been moved).
349 Release 0.22, 2002-08-31:
351 Symbolic links are now versioned objects. The format of the MAP file
352 changes to accomodate this; the new Meta-CVS will read old MAP
353 files; when it writes it will write the new format. Old Meta-CVS won't
354 read the new format.
356 When a new module is created from an existing file tree, symbolic
357 links will be recognized and added. The add command will also add
358 symbolic links. Symbolic links can be renamed and moved; this does
359 nothing with their contents. They can point outside of the sandbox
360 using relative or absolute paths.
362 TODO:
364 There doesn't exist yet a special command to create symbolic links, nor to
365 retarget them; retargetting a link can be done manually by editing MCVS/MAP
366 and updating. Retargetting a link using the ln -s command, won't
367 backpropagate to the MAP file; an update will clobber the link.
369 The grab command does not yet compute symbolic link moves; a moved symbolic
370 link is treated as a remove and add. This will be easy to fix.
372 The remap command ignores symlinks.
374 Release 0.21, 2002-08-04:
376 Syntax of grab command changed. The branch is no longer specified as an
377 argument, but using the -r command option. If no revision is specified with
378 -r, then a -A must be specified to make the grab go to the main trunk. This
379 is a safety feature, since grabbing foreign snapshots to the trunk is almost
380 always wrong, though it could be useful during backup recovery, or for fixing
381 mistakes.
383 The way operating system functions are targetted has changed. Instead of
384 relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
385 has its own module for calling foreign functions. This module is portable;
386 it does not depend on the layout of glibc data structures. So Meta-CVS
387 is in theory now portable to other Unixes (provided they have /dev/urandom).
389 Release 0.20, 2002-07-27:
391 The commit command does a true global commit when given no file or directory
392 parameters, and not given the --metaonly option. This means commiting all
393 changes in the MCVS directory, even if they are in F-files that are not
394 currently mapped.
396 Release 0.19, 2002-07-16:
398 When moving multiple files or directories to a subdirectory, a
399 restart is now provided to skip over bad ones and continue.
401 Grab no longer scans files if there are only added files, or only removed
402 files. There are no moves to deduce in that case.
404 Restore properly creates lost+found at the root of a partial sandbox,
405 rather than at the abstract root of the module.
407 Some other algorithmic improvements made.
409 The first few sections of a user guide have been written.
411 Release 0.18, 2002-07-07:
413 Cool new feature: checkout takes an extra argument, which specifies a
414 subdirectory of the project. Specifying a subdirectory results in a ``partial
415 sandbox'', whose root directory is the specified subdirectory of the larger
416 project. The rest of the project is ``invisible'' to that sandbox. A
417 subdirectory argument can also be given to mcvs grab, which will cause it to
418 integrate the new source tree against a subtree of the Meta-CVS project
419 rather than the entire project. The subtree doesn't have to exist; in
420 that case you get an empty sandbox. Adding files to this sandbox will cause
421 the tree to exist in the project.
423 Bugfix: mcvs grab was not computing moves properly over small file sets,
424 wrongly treating them as removes and adds.
426 Release 0.17, 2002-07-02:
428 The create command no longer takes a vendor branch. Instead the symbol
429 ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
431 The grab command no longer does useless synchronization on files that
432 are about to be deleted.
434 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
435 that have no mapping.
437 New restore command; re-enters deleted files into the mapping, under
438 the ``lost+found'' directory, using their F- names as sandbox names.
440 Bugfix: when a checkout bails because it is requested over top of an existing
441 working copy, it must not delete that working copy's MCVS sub directory.
443 Release 0.16, 2002-06-29:
445 Added new heuristics to grab command. Paths are analyzed to determine
446 move distance. Greater distances reduce the confidence in a move.
447 These rules help sort out grabs in a project where similar or
448 duplicate files are subject to parallel moves, the ambiguity being
449 resolved by favoring shorter moves. Word comparisons are case-insensitive
450 now. Common words (those that appear in many files) are ignored when
451 comparing files.
453 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
454 up a little bit. Most reporting commands like log or diff no longer
455 operate on meta files by default; they must be explicitly told to do
456 so with --meta or --metaonly. Only the commit command implicitly includes
457 metafiles by default, and so if this is not wanted, --nometa must be
458 selected. The update command remains special; if it is given file
459 arguments, it does not include meta files. If given no arguments, it
460 does a global CVS up across the entire project.
462 Release 0.15, 2002-06-25:
464 Optimized a string splitting routine which is used heavily for processing
465 paths; the result is a noticeable performance improvement in some commands
466 that process large numbers of files.
468 Renamed ``import'' command to ``create''.
470 Bugfix: checkout and create showed errors when removing directory, due to
471 broken :postorder support in directory walking function.
473 Bugfix: on failure, checkout was failing to delete the MCVS directory when
474 the checkout was directed to an existing directory.
476 New feature: ``mcvs grab'' command imports third-party snapshots to a
477 branch. This is invoked in the root directory of the source tree to import.
478 It determines what files have been added and removed in the snapshot, and
479 tries to compute which removes and adds are actually moves. This is done by
480 analyzing the actual contents of the files according to a crude algorithm to
481 do fuzzy comparisons, so that even files which were modified as well as moved
482 are discovered.
484 Release 0.14, 2002-06-21:
486 Bugfix: mcvs add was broken for files that have no suffix, causing
487 the underlying cvs add to fail. This was broken in 0.7 when type
488 handling was added.
490 Release 0.13, 2002-06-06:
492 Sandbox synchronization now handles the case of two files having
493 the same timestamp. An error is signaled, with interactive resolution
494 to synchronize either way, or do nothing.
496 If a file must be deleted on update, and this cannot be done, it
497 is now a continuable error.
499 Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
500 whose suffix is one of the ones cvs ignores by default.
502 New command: mcvs remap. The user can move or delete files directly without
503 going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
504 moves and deletions, and reconstruct the mapping accordingly; that is,
505 it remaps the new structure. This command uses inode numbers to identify
506 files; if a file is copied and then the original is deleted, that won't
507 be recognized as a move.
509 Release 0.12, 2002-04-18:
511 Bugfix: remove was broken in 0.10, fixed now.
513 Bugfix: status, diff, etc. work in empty project rather than complaining
514 ``. not known to Meta-CVS''.
516 The checkout operation now can now populate an existing directory, including
517 the current working directory (mcvs co -d . modulename). Of course, the
518 target directory cannot be an existing Meta-CVS sandbox.
519 This is a useful feature, which allows sandboxes to blend with an
520 existing directory structure.
522 Checkout now uses the same function for generating the sandbox
523 structure as does update. This is now necessary, because local files
524 can be clobbered by the checkout.
526 Release 0.11, 2002-04-12:
528 Bugfix: when branch invokes rtag, it now takes the CVSROOT information
529 from CVS/Root and passes it via -d. This is necessary because rtag does not
530 look at a local CVS subdirectory for this information, only the
531 -d option or the environment variable.
533 Command for listing branches added (list-branches or lb). Also shows
534 what sticky tag the sandbox is updated to.
536 Command for switching branches added (switch or sw).
538 Merge detects that working copy is on non-branch tag and bails.
540 Absolute paths can now be specified as file arguments. These are
541 based from the root directory of the sandbox, not the actual filesystem root
542 directory.
544 Release 0.10, 2002-04-03:
546 Automatic merging implemented. Branch is created using branch command,
547 and merging from another branch is done using simple merge command.
548 Meta-CVS maintains the tags to keep track of what has been merged
549 from what branch to what branch.
551 Bugfix: checkout -d foo bar was complaining about directory bar already
552 existing, even though it should only care about foo.
554 The remove command now requires explicit -R option to recursively remove
555 a directory. It has more detailed error reporting.
557 The move command has better error reporting.
559 Release 0.9, 2002-03-14:
561 Bugfix: the .cvsignore file is now subject to tagging, status, etc,
562 (unless --nometa is specified, of course).
564 The mcvs filt command takes -r <revision> or -D <date> parameters.
565 This means to retrieve the MAP file as of the specified revision or
566 date and use that mapping to perform the filtering translation,
567 rather than using MAP-LOCAL.
569 The mcvs update command takes filename arguments now and also
570 supports the -p option.
572 Release 0.8, 2002-03-13:
574 Bug fixed in mcvs add; it was not ignoring files that are already
575 listed as :ignore in MCVS/TYPES.
577 Bug fixed in mcvs move: a target with a trailing slash is now treated
578 as a directory (if it does not already exist and is a non-directory).
580 The -d option of mcvs checkout can now be used to override the checkout
581 directory, which is normally the same as the module name.
583 The global options --version, --help, -q, -Q and -e are now supported.
585 New global options --error-continue and --error-terminate to disable
586 interactive error handling in two different ways.
588 Log level of many messages has changed; many messages have been
589 relegated to debug level.
591 The import command now creates a .cvsignore file containing the name
594 Release 0.7, 2002-03-09:
596 The import command collects a list of the file suffixes and brings up
597 a text editor to allow the user to edit their CVS keyword expansion
598 behavior. This information is kept in a new metafile called TYPES. The
599 add command also updates TYPES; it identifies any suffixes which are new,
600 and brings up an editor. The F- files now carry suffixes, which
601 simplifies interfacing with CVS, and also allows cvswrappers to work.
603 Recursive add works (mcvs add -R ...).
605 New command line option --nometa allows metafiles to be excluded from
606 diff, tag, and other commands; without the option they are inserted
607 into the list of files to be processed.
609 The commit option now takes an optional list of files or directories,
610 just like tag, diff, and others.
612 Release 0.6, 2002-02-16:
614 The add operation was horribly broken in 0.5, it is fixed.
616 User can interactively select whether to clobber local files or leave
617 everything alone. Effects on the mapping file of a mcvs move are undone,
618 if the restructuring is rolled back, or raises a condition that leads
619 to termination.
621 Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
622 during import, and specifies the CVS keyword expansion mode for files
623 having given suffixes, and can also tell Meta-CVS to ignore certain files
624 when importing or adding.
626 Release 0.5, 2002-02-10:
628 Much improved error handling. Filesystem rearranging code performs
629 sanity checks to prevent adds and moves from accidentally clobbering
630 local files. A rearranging gone bad can be rolled back. Effects
631 of a failed mcvs add can also be rolled back.
633 MAP-LOCAL is now sorted in the same way as MAP.
635 Release 0.4, 2002-02-04:
637 CVS is invoked using internal function resembling the xargs utility,
638 which ensures that multiple command lines are generated if necessary to
639 avoid surpassing the operating system limit on argument and environment
640 vector size. This is important when someone wants to diff or stat a
641 subdirectory, which requires Meta-CVS to pick out the individual files
642 at the CVS level.
644 The tag, log, status and annotate commands are now available.
646 The MAP file is sorted on F- file names now, not path names. This
647 improves merging, since files do not move within the file when
648 they are renamed.
650 Release 0.3, 2002-02-02:
652 Process termination done is properly in top level handler, by a nonlocal
653 exit. The program properly indicates failed termination when it exits
654 due to an error condition.
656 Corrections are made in the command line option processing. If z is an
657 option that takes an argument, and the argument is -zx, then x is
658 treated as the argument to the option. Long options arguments are
659 recognized properly, according to the --opt=arg convention. The option
660 processing is restructured. Most of the commands now take the
661 appropriate cvs command-specific options.
663 The update algorithm performs dupe checking over the map, which could
664 happen during a merge.
666 Some more bugfixing has been done to the move command. It was still not
667 handling right some cases of an unversioned file being clobbered. Also,
668 it wasn't renaming a directory containing just one file.
670 I did some performance investigation for larger file sets, and
671 ended up rewriting the code that computes filesystem restructuring
672 changes and map duplicates.
674 Release 0.2, 2002-01-30:
676 Changed official name from MCVS to Meta-CVS. The move command now
677 performs some filesystem tests so it does the right thing when a versioned
678 file is moved over a non-versioned file, or when a file is moved into
679 a directory not known to Meta-CVS. Factored out reading and writing of
680 map files into functions.
682 Release 0.1, 2002-01-28:
684 Support for mcvs diff -u added. The -R option works for mcvs add command.
685 Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
686 mv command when copying a directory to an existing directory.
688 Release 0.0, 2002-01-27:
690 This is alpha software. It is not complete, and lacks documentation.
691 However, it is already usable in its present state and is being used for
692 version control by its author. If you can program in Common Lisp and would
693 like to help, take a look through the TODO file. Send me patches, ideas,
694 feature requests.

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