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Revision 1.161 - (hide annotations)
Thu Feb 13 07:22:35 2003 UTC (11 years, 2 months ago) by kaz
Branch: MAIN
CVS Tags: mcvs-1-0-3
Changes since 1.160: +6 -1 lines
Merging from mcvs-1-0-branch.

New --up option added for escaping out of nested sandboxes.

* code/mcvs-main.lisp (*cvs-options*): Added "up" 1 arg option.

* code/options.lisp (*nesting-escape-option*): New global,
default value 0.
(filter-mcvs-options): Filter new option, parse out and validate
integer argument.

* code/mapping.lisp (mcvs-locate): When searching for MCVS
directory, skip N matches, where N is the value of
1 kaz 1.115 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz 1.142 Release ?.??, 200?-??-??:
5     All Lisp symbols are isolated in a package.
7 kaz 1.161 Release 1.0.3, 2002-02-12:
8 kaz 1.160
9     Fix for the CVS ``No child processes'' abort problem. It turns out
10     that CLISP sets the signal handling action for the SIGCHLD signal
11     to SIG_IGN, which is inherited by child processes across the
12     fork() and execvp() calls used in our mcvs_spawn() function.
13     We correct the problem by resetting the signal handler to SIG_DFL
14     just before executing the new process image.
15 kaz 1.161
16     New feature, --up option. The argument is a nonnegative integer value
17     (default is zero) which specifies how many sandbox nesting levels to
18     escape out of when locating the sandbox root. This helps work with
19     nested Meta-CVS sandboxes.
20 kaz 1.160
21 kaz 1.159 Release 1.0.2, 2002-02-10:
22 kaz 1.157
23     Bugfix in waitpid logic in the C library for running external processes;
24     we were not dealing with an interrupted waitpid.
26 kaz 1.158 Behavior of mcvs tag is changed: when there are no filename arguments,
27     the whole tree is tagged including the metafiles. In other words, it
28     now works like the commit command.
30 kaz 1.157 Release 1.0.1, 2003-01-30:
31 kaz 1.154
32     Hard link sync optimization: update of a subset of files, commit, and
33     other operations like log and diff don't need to synchronize all
34     hard links, just the ones operated on.
36 kaz 1.155 The merge and remerge commands support -k option for overriding
37     CVS keyword expansion mode.
39 kaz 1.156 Fixes to getcwd error handling.
40 kaz 1.157
41     Improvement in install.sh script's logic for locating CLISP installation
42     directory.
43 kaz 1.156
44 kaz 1.153 Release 1.0, 2003-01-01:
45 kaz 1.147
46 kaz 1.151 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
47     because it adds some new C functions to the Lisp executable.
49 kaz 1.147 Security fix: read-time evaluation was not suppressed when reading
50     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
51     was possible for Alice to check in something that would execute
52     arbitrary code on Bob's computer.
54 kaz 1.148 Optimization: use fork and exec to launch CVS rather than CLISP's
55     run-program function, which indirects through the shell interpreter.
56 kaz 1.153 (On Cygwin, the spawnvp function is used).
57 kaz 1.148
58 kaz 1.149 Performance fix: stat() was being called superfluously by the
59     hard synchronization code, twice for each file.
61 kaz 1.150 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
62     which is the case under Cygwin with newer CLISP releases.
64 kaz 1.146 Release 0.99, 2002-11-17:
65 kaz 1.135
66 kaz 1.140 New link command for creating symbolic links.
68 kaz 1.144 Global option -n (dry run---don't modify filesystem) is processed
69     internally now, not just passed to CVS.
71 kaz 1.135 Failure to invoke text editor is handled.
73 kaz 1.136 The -r option of filt is fixed; it has been broken since the change to the
74     new MAP format, because it was reading the raw map representation, not
75     passing it through the right conversion steps that are needed now.
77 kaz 1.138 Bugfix to purge and remap commands: they were fooled by CVS-generated
78     files in the MCVS/CVS directory. Specifically, files having F- names, and a
79     the suffix ,t.
81 kaz 1.141 Bugfix to add logic in directory restructuring: there was the possibility
82     of mistakingly taking a clobbered local file to be a new local version of
83     the added file, instead of replacing it. This could happen if the local
84     file had a future timestamp relative to the one coming from the repository.
86 kaz 1.143 The prop command does not synchronize or write out map if no options are
87     specified.
89 kaz 1.144 Help text added for move and branch commands. Help text for grab rewritten.
90 kaz 1.137
91 kaz 1.145 The CVSEDITOR and VISUAL environment variables are now checked, not
92     only EDITOR.
94 kaz 1.134 Release 0.98, 2002-10-13:
95 kaz 1.128
96 kaz 1.133 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
97     which could cause information loss if the two differ. It now reads from MAP
98     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
99     update operation invoked by prop, as before).
101     Invocation of external programs included in debug trace.
102 kaz 1.128
103     The filt command does not filter F- names if they are immediately preceded by
104     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
105     references to the actual F- links, rather than abstract references.
107 kaz 1.129 The update command now supports the -C option, to fetch the repository
108     copy, throwing away local changes. It also now honors the --metaonly
109     and --nometa options.
110 kaz 1.130
111     The export command has been added, for checking out documents without creating
112     a working copy (no MCVS directory in the root of the checkout).
113 kaz 1.131
114 kaz 1.133 The watch command has been added. Note that its syntax differs from that
115     of CVS.
116 kaz 1.132
117     The watchers, editors, edit, and unedit commands have been added.
118 kaz 1.134
119     A script called mcvs-upgrade is now included, and installs alongside the mcvs
120     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
121     giving users of binary distributions an easy way to upgrade from source
122     code.
124 kaz 1.127 Release 0.97, 2002-10-06:
125 kaz 1.119
126     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
127     (www.cygwin.com). It still relies on hard links, which requires
128     Windows 2000 or XP, and the NTFS filesystem. It probably won't
129     work over FAT.
130 kaz 1.120
131     New --debug option for verbose output.
133     Cleaned up of error messages. Error messages don't specify prefixes like
134     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
135     ``mcvs:'' prefix when printing the messages in a situation when the error is
136     not continuable.
137 kaz 1.119
138 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
139     directories, effectively ignoring arguments that are regular files.
140 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
141 kaz 1.121
142 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
143     directory are no longer silent no-ops, but produce an error.
144 kaz 1.123
145 kaz 1.124 The remap command now preserves property lists, and picks up changes
146     in executable permission.
148     The grab command now notices when a file changes from having execute
149     permission to not having execute permission.
151 kaz 1.126 Operations on the path . now work in a partial sandbox.
153 kaz 1.118 Release 0.96, 2002-09-21:
154 kaz 1.110
155     The restore command was left broken during the change to the new
156     filemap format. It is now fixed.
158 kaz 1.111 The grab command now handles execute permission bits properly.
160 kaz 1.112 Some more commands have detailed help.
162 kaz 1.113 There is now a global option -i which specifies a script to be
163 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
164     instance suppose you have the following script and call it
165     list-matching:
166 kaz 1.113
167     #!/usr/local/bin/mcvs -i
168     (in-sandbox-root-dir
169 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
170 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
171 kaz 1.114 (dolist (entry mapping)
172     (with-slots (path raw-plist) entry
173 kaz 1.117 (when (funcall test-func raw-plist)
174 kaz 1.114 (format t "~a~%" path))))))
176     Then to list the names of files whose "importance" property is
177     a value greater than two, run:
179     ./list-matching '(lambda (plist)
180     (let ((imp (getf plist :importance)))
181     (and imp (> imp 2))))'
182 kaz 1.117
183     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
184     break as Meta-CVS is maintained. There is currently no published set of
185     stable interfaces.
186 kaz 1.113
187 kaz 1.109 Release 0.95, 2002-09-16:
188 kaz 1.104
189 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
190     or the linkkit directory; these have been removed. These materials
191     are available at every CLISP installation; install.sh now finds them
192     and uses them. Users of non-x86 machines ran into problems because of this
193     because linkkit/clisp.h contains architecture-dependent information.
194 kaz 1.104
195 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
196     in the map.
198 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
199     help'' command acts just like ``mcvs --help'' without any arguments. If given
200     an additional parameter which specifies a Meta-CVS command, it produces more
201     detailed documentation for that comand. Help exists already for a few
202     commands.
204 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
205     in beta. It is only five updates away from a 1.0 release.
206 kaz 1.106
207 kaz 1.103 Release 0.24, 2002-09-08:
208 kaz 1.98
209 kaz 1.99 The mapping entries for both symlinks and files have extensible property
210     lists now. These are stored in the optional fourth and fifth list elements,
211     respectively of the :FILE and :SYMLINK map entries.
213     Versioning of the execute permission of files is supported, represented as
214     the :EXEC property of a :FILE mapping entry.
215 kaz 1.98
216 kaz 1.100 Some lame syntax is provided for manipulating properties:
218 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
219 kaz 1.100
220     will set the property FOO to true, set the property BAR to false,
221     and remove the property BAZ, in the files main.c and list.c.
222     The execute permission is represented by the property EXEC.
224 kaz 1.97 Release 0.23, 2002-09-02:
225 kaz 1.95
226 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
227     changes into the mapping.
229     The grab command now figures out moved symlinks. Moved symlinks are those
230     whose pathname has changed, but which continue to point to the same object
231     (which may also have been moved).
232 kaz 1.95
233 kaz 1.94 Release 0.22, 2002-08-31:
234 kaz 1.93
235     Symbolic links are now versioned objects. The format of the MAP file
236     changes to accomodate this; the new Meta-CVS will read old MAP
237     files; when it writes it will write the new format. Old Meta-CVS won't
238     read the new format.
240     When a new module is created from an existing file tree, symbolic
241     links will be recognized and added. The add command will also add
242     symbolic links. Symbolic links can be renamed and moved; this does
243     nothing with their contents. They can point outside of the sandbox
244     using relative or absolute paths.
246 kaz 1.94 TODO:
248 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
249     retarget them; retargetting a link can be done manually by editing MCVS/MAP
250     and updating. Retargetting a link using the ln -s command, won't
251 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
253     The grab command does not yet compute symbolic link moves; a moved symbolic
254     link is treated as a remove and add. This will be easy to fix.
256     The remap command ignores symlinks.
257 kaz 1.93
258 kaz 1.92 Release 0.21, 2002-08-04:
259 kaz 1.88
260 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
261     argument, but using the -r command option. If no revision is specified with
262     -r, then a -A must be specified to make the grab go to the main trunk. This
263     is a safety feature, since grabbing foreign snapshots to the trunk is almost
264     always wrong, though it could be useful during backup recovery, or for fixing
265     mistakes.
267 kaz 1.91 The way operating system functions are targetted has changed. Instead of
268     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
269     has its own module for calling foreign functions. This module is portable;
270     it does not depend on the layout of glibc data structures. So Meta-CVS
271     is in theory now portable to other Unixes (provided they have /dev/urandom).
273 kaz 1.87 Release 0.20, 2002-07-27:
274 kaz 1.86
275     The commit command does a true global commit when given no file or directory
276     parameters, and not given the --metaonly option. This means commiting all
277     changes in the MCVS directory, even if they are in F-files that are not
278     currently mapped.
280 kaz 1.85 Release 0.19, 2002-07-16:
281 kaz 1.81
282     When moving multiple files or directories to a subdirectory, a
283     restart is now provided to skip over bad ones and continue.
285 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
286     files. There are no moves to deduce in that case.
288 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
289     rather than at the abstract root of the module.
291 kaz 1.83 Some other algorithmic improvements made.
292 kaz 1.82
293     The first few sections of a user guide have been written.
295 kaz 1.80 Release 0.18, 2002-07-07:
296 kaz 1.77
297 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
298     subdirectory of the project. Specifying a subdirectory results in a ``partial
299     sandbox'', whose root directory is the specified subdirectory of the larger
300     project. The rest of the project is ``invisible'' to that sandbox. A
301     subdirectory argument can also be given to mcvs grab, which will cause it to
302     integrate the new source tree against a subtree of the Meta-CVS project
303 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
304     that case you get an empty sandbox. Adding files to this sandbox will cause
305     the tree to exist in the project.
306 kaz 1.78
307 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
308     wrongly treating them as removes and adds.
310 kaz 1.76 Release 0.17, 2002-07-02:
311 kaz 1.71
312     The create command no longer takes a vendor branch. Instead the symbol
313     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
315 kaz 1.72 The grab command no longer does useless synchronization on files that
316     are about to be deleted.
318 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
319     that have no mapping.
321     New restore command; re-enters deleted files into the mapping, under
322     the ``lost+found'' directory, using their F- names as sandbox names.
323 kaz 1.73
324 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
325     working copy, it must not delete that working copy's MCVS sub directory.
327 kaz 1.70 Release 0.16, 2002-06-29:
328 kaz 1.67
329     Added new heuristics to grab command. Paths are analyzed to determine
330     move distance. Greater distances reduce the confidence in a move.
331     These rules help sort out grabs in a project where similar or
332     duplicate files are subject to parallel moves, the ambiguity being
333 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
334     now. Common words (those that appear in many files) are ignored when
335     comparing files.
336 kaz 1.67
337 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
338     up a little bit. Most reporting commands like log or diff no longer
339     operate on meta files by default; they must be explicitly told to do
340     so with --meta or --metaonly. Only the commit command implicitly includes
341     metafiles by default, and so if this is not wanted, --nometa must be
342     selected. The update command remains special; if it is given file
343     arguments, it does not include meta files. If given no arguments, it
344     does a global CVS up across the entire project.
346 kaz 1.66 Release 0.15, 2002-06-25:
347 kaz 1.61
348 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
349     paths; the result is a noticeable performance improvement in some commands
350     that process large numbers of files.
351 kaz 1.61
352 kaz 1.62 Renamed ``import'' command to ``create''.
354 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
355     broken :postorder support in directory walking function.
356 kaz 1.63
357 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
358     the checkout was directed to an existing directory.
360 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
361 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
362     It determines what files have been added and removed in the snapshot, and
363     tries to compute which removes and adds are actually moves. This is done by
364     analyzing the actual contents of the files according to a crude algorithm to
365     do fuzzy comparisons, so that even files which were modified as well as moved
366     are discovered.
367 kaz 1.64
368 kaz 1.60 Release 0.14, 2002-06-21:
369 kaz 1.59
370     Bugfix: mcvs add was broken for files that have no suffix, causing
371 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
372     handling was added.
373 kaz 1.59
374 kaz 1.58 Release 0.13, 2002-06-06:
375 kaz 1.55
376     Sandbox synchronization now handles the case of two files having
377     the same timestamp. An error is signaled, with interactive resolution
378     to synchronize either way, or do nothing.
380 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
381     is now a continuable error.
383     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
384     whose suffix is one of the ones cvs ignores by default.
386 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
387     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
388     moves and deletions, and reconstruct the mapping accordingly; that is,
389     it remaps the new structure. This command uses inode numbers to identify
390     files; if a file is copied and then the original is deleted, that won't
391     be recognized as a move.
393 kaz 1.53 Release 0.12, 2002-04-18:
394 kaz 1.51
395     Bugfix: remove was broken in 0.10, fixed now.
397 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
398     ``. not known to Meta-CVS''.
400 kaz 1.52 The checkout operation now can now populate an existing directory, including
401     the current working directory (mcvs co -d . modulename). Of course, the
402     target directory cannot be an existing Meta-CVS sandbox.
403     This is a useful feature, which allows sandboxes to blend with an
404     existing directory structure.
406     Checkout now uses the same function for generating the sandbox
407     structure as does update. This is now necessary, because local files
408     can be clobbered by the checkout.
410 kaz 1.50 Release 0.11, 2002-04-12:
411 kaz 1.46
412     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
413     from CVS/Root and passes it via -d. This is necessary because rtag does not
414     look at a local CVS subdirectory for this information, only the
415     -d option or the environment variable.
417 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
418     what sticky tag the sandbox is updated to.
420     Command for switching branches added (switch or sw).
422     Merge detects that working copy is on non-branch tag and bails.
423 kaz 1.47
424 kaz 1.49 Absolute paths can now be specified as file arguments. These are
425     based from the root directory of the sandbox, not the actual filesystem root
426     directory.
428 kaz 1.45 Release 0.10, 2002-04-03:
429 kaz 1.44
430     Automatic merging implemented. Branch is created using branch command,
431     and merging from another branch is done using simple merge command.
432     Meta-CVS maintains the tags to keep track of what has been merged
433     from what branch to what branch.
434 kaz 1.40
435     Bugfix: checkout -d foo bar was complaining about directory bar already
436     existing, even though it should only care about foo.
438 kaz 1.41 The remove command now requires explicit -R option to recursively remove
439 kaz 1.42 a directory. It has more detailed error reporting.
440 kaz 1.41
441 kaz 1.43 The move command has better error reporting.
443 kaz 1.39 Release 0.9, 2002-03-14:
444 kaz 1.37
445     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
446     (unless --nometa is specified, of course).
447 kaz 1.38
448     The mcvs filt command takes -r <revision> or -D <date> parameters.
449     This means to retrieve the MAP file as of the specified revision or
450     date and use that mapping to perform the filtering translation,
451     rather than using MAP-LOCAL.
452 kaz 1.39
453     The mcvs update command takes filename arguments now and also
454     supports the -p option.
455 kaz 1.37
456 kaz 1.36 Release 0.8, 2002-03-13:
457 kaz 1.28
458 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
459     listed as :ignore in MCVS/TYPES.
461 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
462     as a directory (if it does not already exist and is a non-directory).
464 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
465     directory, which is normally the same as the module name.
467 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
469 kaz 1.33 New global options --error-continue and --error-terminate to disable
470     interactive error handling in two different ways.
472 kaz 1.32 Log level of many messages has changed; many messages have been
473     relegated to debug level.
475 kaz 1.35 The import command now creates a .cvsignore file containing the name
476     MAP-LOCAL.
478 kaz 1.24 Release 0.7, 2002-03-09:
480 kaz 1.27 The import command collects a list of the file suffixes and brings up
481     a text editor to allow the user to edit their CVS keyword expansion
482     behavior. This information is kept in a new metafile called TYPES. The
483     add command also updates TYPES; it identifies any suffixes which are new,
484     and brings up an editor. The F- files now carry suffixes, which
485     simplifies interfacing with CVS, and also allows cvswrappers to work.
487     Recursive add works (mcvs add -R ...).
489     New command line option --nometa allows metafiles to be excluded from
490     diff, tag, and other commands; without the option they are inserted
491     into the list of files to be processed.
492 kaz 1.25
493 kaz 1.27 The commit option now takes an optional list of files or directories,
494     just like tag, diff, and others.
495 kaz 1.26
496 kaz 1.23 Release 0.6, 2002-02-16:
497 kaz 1.19
498 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
499 kaz 1.21
500 kaz 1.27 User can interactively select whether to clobber local files or leave
501     everything alone. Effects on the mapping file of a mcvs move are undone,
502     if the restructuring is rolled back, or raises a condition that leads
503     to termination.
505     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
506     during import, and specifies the CVS keyword expansion mode for files
507     having given suffixes, and can also tell Meta-CVS to ignore certain files
508     when importing or adding.
509 kaz 1.22
510 kaz 1.18 Release 0.5, 2002-02-10:
511 kaz 1.14
512 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
513     sanity checks to prevent adds and moves from accidentally clobbering
514     local files. A rearranging gone bad can be rolled back. Effects
515     of a failed mcvs add can also be rolled back.
516 kaz 1.14
517 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
518 kaz 1.15
519 kaz 1.13 Release 0.4, 2002-02-04:
520 kaz 1.10
521 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
522     which ensures that multiple command lines are generated if necessary to
523     avoid surpassing the operating system limit on argument and environment
524     vector size. This is important when someone wants to diff or stat a
525     subdirectory, which requires Meta-CVS to pick out the individual files
526     at the CVS level.
528     The tag, log, status and annotate commands are now available.
530     The MAP file is sorted on F- file names now, not path names. This
531     improves merging, since files do not move within the file when
532     they are renamed.
533 kaz 1.12
534 kaz 1.5 Release 0.3, 2002-02-02:
536 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
537     exit. The program properly indicates failed termination when it exits
538     due to an error condition.
540     Corrections are made in the command line option processing. If z is an
541     option that takes an argument, and the argument is -zx, then x is
542     treated as the argument to the option. Long options arguments are
543     recognized properly, according to the --opt=arg convention. The option
544     processing is restructured. Most of the commands now take the
545     appropriate cvs command-specific options.
547     The update algorithm performs dupe checking over the map, which could
548     happen during a merge.
550     Some more bugfixing has been done to the move command. It was still not
551     handling right some cases of an unversioned file being clobbered. Also,
552     it wasn't renaming a directory containing just one file.
554     I did some performance investigation for larger file sets, and
555     ended up rewriting the code that computes filesystem restructuring
556     changes and map duplicates.
557 kaz 1.5
558 kaz 1.4 Release 0.2, 2002-01-30:
560 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
561     performs some filesystem tests so it does the right thing when a versioned
562     file is moved over a non-versioned file, or when a file is moved into
563     a directory not known to Meta-CVS. Factored out reading and writing of
564     map files into functions.
565 kaz 1.4
566 kaz 1.2 Release 0.1, 2002-01-28:
568 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
569     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
570     mv command when copying a directory to an existing directory.
571 kaz 1.2
572     Release 0.0, 2002-01-27:
573 kaz 1.1
574 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
575     However, it is already usable in its present state and is being used for
576     version control by its author. If you can program in Common Lisp and would
577     like to help, take a look through the TODO file. Send me patches, ideas,
578     feature requests.

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