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Revision 1.127.2.39 - (hide annotations)
Thu Feb 13 07:20:49 2003 UTC (11 years, 2 months ago) by kaz
Branch: mcvs-1-0-branch
Changes since 1.127.2.38: +5 -0 lines
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
*nesting-escape-option*.
1 kaz 1.115 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz 1.127.2.38 Release 1.0.3, 2002-02-12:
4 kaz 1.127.2.37
5     Fix for the CVS ``No child processes'' abort problem. It turns out
6     that CLISP sets the signal handling action for the SIGCHLD signal
7     to SIG_IGN, which is inherited by child processes across the
8     fork() and execvp() calls used in our mcvs_spawn() function.
9     We correct the problem by resetting the signal handler to SIG_DFL
10     just before executing the new process image.
11    
12 kaz 1.127.2.39 New feature, --up option. The argument is a nonnegative integer value
13     (default is zero) which specifies how many sandbox nesting levels to
14     escape out of when locating the sandbox root. This helps work with
15     nested Meta-CVS sandboxes.
16    
17 kaz 1.127.2.36 Release 1.0.2, 2002-02-10:
18 kaz 1.127.2.34
19     Bugfix in waitpid logic in the C library for running external processes;
20     we were not dealing with an interrupted waitpid.
21    
22 kaz 1.127.2.35 Behavior of mcvs tag is changed: when there are no filename arguments,
23     the whole tree is tagged including the metafiles. In other words, it
24     now works like the commit command.
25    
26 kaz 1.127.2.33 Release 1.0.1, 2003-01-30:
27 kaz 1.127.2.30
28     Hard link sync optimization: update of a subset of files, commit, and
29     other operations like log and diff don't need to synchronize all
30     hard links, just the ones operated on.
31    
32 kaz 1.127.2.31 The merge and remerge commands support -k option for overriding
33     CVS keyword expansion mode.
34    
35 kaz 1.127.2.32 Fixes to getcwd error handling.
36 kaz 1.127.2.33
37     Improvement in install.sh script's logic for locating CLISP installation
38     directory.
39 kaz 1.127.2.32
40 kaz 1.127.2.29 Release 1.0, 2003-01-01:
41 kaz 1.127.2.23
42 kaz 1.127.2.27 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
43     because it adds some new C functions to the Lisp executable.
44    
45 kaz 1.127.2.23 Security fix: read-time evaluation was not suppressed when reading
46     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
47     was possible for Alice to check in something that would execute
48     arbitrary code on Bob's computer.
49    
50 kaz 1.127.2.24 Optimization: use fork and exec to launch CVS rather than CLISP's
51     run-program function, which indirects through the shell interpreter.
52 kaz 1.127.2.29 (On Cygwin, the spawnvp function is used).
53 kaz 1.127.2.24
54 kaz 1.127.2.25 Performance fix: stat() was being called superfluously by the
55     hard synchronization code, twice for each file.
56    
57 kaz 1.127.2.26 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
58     which is the case under Cygwin with newer CLISP releases.
59    
60 kaz 1.127.2.22 Release 0.99, 2002-11-17:
61 kaz 1.127.2.11
62 kaz 1.127.2.16 New link command for creating symbolic links.
63    
64 kaz 1.127.2.20 Global option -n (dry run---don't modify filesystem) is processed
65     internally now, not just passed to CVS.
66    
67 kaz 1.127.2.11 Failure to invoke text editor is handled.
68    
69 kaz 1.127.2.12 The -r option of filt is fixed; it has been broken since the change to the
70     new MAP format, because it was reading the raw map representation, not
71     passing it through the right conversion steps that are needed now.
72    
73 kaz 1.127.2.14 Bugfix to purge and remap commands: they were fooled by CVS-generated
74     files in the MCVS/CVS directory. Specifically, files having F- names, and a
75     the suffix ,t.
76    
77 kaz 1.127.2.17 Bugfix to add logic in directory restructuring: there was the possibility
78     of mistakingly taking a clobbered local file to be a new local version of
79     the added file, instead of replacing it. This could happen if the local
80     file had a future timestamp relative to the one coming from the repository.
81    
82 kaz 1.127.2.18 The prop command does not synchronize or write out map if no options are
83     specified.
84    
85 kaz 1.127.2.19 Help text added for move and branch commands. Help text for grab rewritten.
86 kaz 1.127.2.13
87 kaz 1.127.2.21 The CVSEDITOR and VISUAL environment variables are now checked, not
88     only EDITOR.
89    
90 kaz 1.127.2.10 Release 0.98, 2002-10-13:
91 kaz 1.127.2.1
92 kaz 1.127.2.8 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
93     which could cause information loss if the two differ. It now reads from MAP
94     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
95     update operation invoked by prop, as before).
96    
97 kaz 1.127.2.7 Invocation of external programs included in debug trace.
98 kaz 1.127.2.1
99 kaz 1.127.2.2 The filt command does not filter F- names if they are immediately preceded by
100     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
101     references to the actual F- links, rather than abstract references.
102    
103 kaz 1.127.2.3 The update command now supports the -C option, to fetch the repository
104     copy, throwing away local changes. It also now honors the --metaonly
105     and --nometa options.
106 kaz 1.127.2.4
107     The export command has been added, for checking out documents without creating
108     a working copy (no MCVS directory in the root of the checkout).
109 kaz 1.127.2.5
110 kaz 1.127.2.7 The watch command has been added. Note that its syntax differs from that
111     of CVS.
112 kaz 1.127.2.6
113     The watchers, editors, edit, and unedit commands have been added.
114 kaz 1.127.2.9
115     A script called mcvs-upgrade is now included, and installs alongside the mcvs
116     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
117     giving users of binary distributions an easy way to upgrade from source
118     code.
119    
120 kaz 1.127 Release 0.97, 2002-10-06:
121 kaz 1.119
122     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
123     (www.cygwin.com). It still relies on hard links, which requires
124     Windows 2000 or XP, and the NTFS filesystem. It probably won't
125     work over FAT.
126 kaz 1.120
127     New --debug option for verbose output.
128    
129     Cleaned up of error messages. Error messages don't specify prefixes like
130     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
131     ``mcvs:'' prefix when printing the messages in a situation when the error is
132     not continuable.
133 kaz 1.119
134 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
135     directories, effectively ignoring arguments that are regular files.
136 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
137 kaz 1.121
138 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
139     directory are no longer silent no-ops, but produce an error.
140 kaz 1.123
141 kaz 1.124 The remap command now preserves property lists, and picks up changes
142     in executable permission.
143    
144     The grab command now notices when a file changes from having execute
145     permission to not having execute permission.
146    
147 kaz 1.126 Operations on the path . now work in a partial sandbox.
148    
149 kaz 1.118 Release 0.96, 2002-09-21:
150 kaz 1.110
151     The restore command was left broken during the change to the new
152     filemap format. It is now fixed.
153    
154 kaz 1.111 The grab command now handles execute permission bits properly.
155    
156 kaz 1.112 Some more commands have detailed help.
157    
158 kaz 1.113 There is now a global option -i which specifies a script to be
159 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
160     instance suppose you have the following script and call it
161     list-matching:
162 kaz 1.113
163     #!/usr/local/bin/mcvs -i
164     (in-sandbox-root-dir
165 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
166 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
167 kaz 1.114 (dolist (entry mapping)
168     (with-slots (path raw-plist) entry
169 kaz 1.117 (when (funcall test-func raw-plist)
170 kaz 1.114 (format t "~a~%" path))))))
171    
172     Then to list the names of files whose "importance" property is
173     a value greater than two, run:
174    
175     ./list-matching '(lambda (plist)
176     (let ((imp (getf plist :importance)))
177     (and imp (> imp 2))))'
178 kaz 1.117
179     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
180     break as Meta-CVS is maintained. There is currently no published set of
181     stable interfaces.
182 kaz 1.113
183 kaz 1.109 Release 0.95, 2002-09-16:
184 kaz 1.104
185 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
186     or the linkkit directory; these have been removed. These materials
187     are available at every CLISP installation; install.sh now finds them
188     and uses them. Users of non-x86 machines ran into problems because of this
189     because linkkit/clisp.h contains architecture-dependent information.
190 kaz 1.104
191 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
192     in the map.
193    
194 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
195     help'' command acts just like ``mcvs --help'' without any arguments. If given
196     an additional parameter which specifies a Meta-CVS command, it produces more
197     detailed documentation for that comand. Help exists already for a few
198     commands.
199    
200 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
201     in beta. It is only five updates away from a 1.0 release.
202 kaz 1.106
203 kaz 1.103 Release 0.24, 2002-09-08:
204 kaz 1.98
205 kaz 1.99 The mapping entries for both symlinks and files have extensible property
206     lists now. These are stored in the optional fourth and fifth list elements,
207     respectively of the :FILE and :SYMLINK map entries.
208    
209     Versioning of the execute permission of files is supported, represented as
210     the :EXEC property of a :FILE mapping entry.
211 kaz 1.98
212 kaz 1.100 Some lame syntax is provided for manipulating properties:
213    
214 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
215 kaz 1.100
216     will set the property FOO to true, set the property BAR to false,
217     and remove the property BAZ, in the files main.c and list.c.
218     The execute permission is represented by the property EXEC.
219    
220 kaz 1.97 Release 0.23, 2002-09-02:
221 kaz 1.95
222 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
223     changes into the mapping.
224    
225     The grab command now figures out moved symlinks. Moved symlinks are those
226     whose pathname has changed, but which continue to point to the same object
227     (which may also have been moved).
228 kaz 1.95
229 kaz 1.94 Release 0.22, 2002-08-31:
230 kaz 1.93
231     Symbolic links are now versioned objects. The format of the MAP file
232     changes to accomodate this; the new Meta-CVS will read old MAP
233     files; when it writes it will write the new format. Old Meta-CVS won't
234     read the new format.
235    
236     When a new module is created from an existing file tree, symbolic
237     links will be recognized and added. The add command will also add
238     symbolic links. Symbolic links can be renamed and moved; this does
239     nothing with their contents. They can point outside of the sandbox
240     using relative or absolute paths.
241    
242 kaz 1.94 TODO:
243    
244 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
245     retarget them; retargetting a link can be done manually by editing MCVS/MAP
246     and updating. Retargetting a link using the ln -s command, won't
247 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
248    
249     The grab command does not yet compute symbolic link moves; a moved symbolic
250     link is treated as a remove and add. This will be easy to fix.
251    
252     The remap command ignores symlinks.
253 kaz 1.93
254 kaz 1.92 Release 0.21, 2002-08-04:
255 kaz 1.88
256 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
257     argument, but using the -r command option. If no revision is specified with
258     -r, then a -A must be specified to make the grab go to the main trunk. This
259     is a safety feature, since grabbing foreign snapshots to the trunk is almost
260     always wrong, though it could be useful during backup recovery, or for fixing
261     mistakes.
262    
263 kaz 1.91 The way operating system functions are targetted has changed. Instead of
264     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
265     has its own module for calling foreign functions. This module is portable;
266     it does not depend on the layout of glibc data structures. So Meta-CVS
267     is in theory now portable to other Unixes (provided they have /dev/urandom).
268    
269 kaz 1.87 Release 0.20, 2002-07-27:
270 kaz 1.86
271     The commit command does a true global commit when given no file or directory
272     parameters, and not given the --metaonly option. This means commiting all
273     changes in the MCVS directory, even if they are in F-files that are not
274     currently mapped.
275    
276 kaz 1.85 Release 0.19, 2002-07-16:
277 kaz 1.81
278     When moving multiple files or directories to a subdirectory, a
279     restart is now provided to skip over bad ones and continue.
280    
281 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
282     files. There are no moves to deduce in that case.
283    
284 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
285     rather than at the abstract root of the module.
286    
287 kaz 1.83 Some other algorithmic improvements made.
288 kaz 1.82
289     The first few sections of a user guide have been written.
290    
291 kaz 1.80 Release 0.18, 2002-07-07:
292 kaz 1.77
293 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
294     subdirectory of the project. Specifying a subdirectory results in a ``partial
295     sandbox'', whose root directory is the specified subdirectory of the larger
296     project. The rest of the project is ``invisible'' to that sandbox. A
297     subdirectory argument can also be given to mcvs grab, which will cause it to
298     integrate the new source tree against a subtree of the Meta-CVS project
299 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
300     that case you get an empty sandbox. Adding files to this sandbox will cause
301     the tree to exist in the project.
302 kaz 1.78
303 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
304     wrongly treating them as removes and adds.
305    
306 kaz 1.76 Release 0.17, 2002-07-02:
307 kaz 1.71
308     The create command no longer takes a vendor branch. Instead the symbol
309     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
310    
311 kaz 1.72 The grab command no longer does useless synchronization on files that
312     are about to be deleted.
313    
314 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
315     that have no mapping.
316    
317     New restore command; re-enters deleted files into the mapping, under
318     the ``lost+found'' directory, using their F- names as sandbox names.
319 kaz 1.73
320 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
321     working copy, it must not delete that working copy's MCVS sub directory.
322    
323 kaz 1.70 Release 0.16, 2002-06-29:
324 kaz 1.67
325     Added new heuristics to grab command. Paths are analyzed to determine
326     move distance. Greater distances reduce the confidence in a move.
327     These rules help sort out grabs in a project where similar or
328     duplicate files are subject to parallel moves, the ambiguity being
329 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
330     now. Common words (those that appear in many files) are ignored when
331     comparing files.
332 kaz 1.67
333 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
334     up a little bit. Most reporting commands like log or diff no longer
335     operate on meta files by default; they must be explicitly told to do
336     so with --meta or --metaonly. Only the commit command implicitly includes
337     metafiles by default, and so if this is not wanted, --nometa must be
338     selected. The update command remains special; if it is given file
339     arguments, it does not include meta files. If given no arguments, it
340     does a global CVS up across the entire project.
341    
342 kaz 1.66 Release 0.15, 2002-06-25:
343 kaz 1.61
344 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
345     paths; the result is a noticeable performance improvement in some commands
346     that process large numbers of files.
347 kaz 1.61
348 kaz 1.62 Renamed ``import'' command to ``create''.
349    
350 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
351     broken :postorder support in directory walking function.
352 kaz 1.63
353 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
354     the checkout was directed to an existing directory.
355    
356 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
357 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
358     It determines what files have been added and removed in the snapshot, and
359     tries to compute which removes and adds are actually moves. This is done by
360     analyzing the actual contents of the files according to a crude algorithm to
361     do fuzzy comparisons, so that even files which were modified as well as moved
362     are discovered.
363 kaz 1.64
364 kaz 1.60 Release 0.14, 2002-06-21:
365 kaz 1.59
366     Bugfix: mcvs add was broken for files that have no suffix, causing
367 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
368     handling was added.
369 kaz 1.59
370 kaz 1.58 Release 0.13, 2002-06-06:
371 kaz 1.55
372     Sandbox synchronization now handles the case of two files having
373     the same timestamp. An error is signaled, with interactive resolution
374     to synchronize either way, or do nothing.
375    
376 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
377     is now a continuable error.
378    
379     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
380     whose suffix is one of the ones cvs ignores by default.
381    
382 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
383     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
384     moves and deletions, and reconstruct the mapping accordingly; that is,
385     it remaps the new structure. This command uses inode numbers to identify
386     files; if a file is copied and then the original is deleted, that won't
387     be recognized as a move.
388    
389 kaz 1.53 Release 0.12, 2002-04-18:
390 kaz 1.51
391     Bugfix: remove was broken in 0.10, fixed now.
392    
393 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
394     ``. not known to Meta-CVS''.
395    
396 kaz 1.52 The checkout operation now can now populate an existing directory, including
397     the current working directory (mcvs co -d . modulename). Of course, the
398     target directory cannot be an existing Meta-CVS sandbox.
399     This is a useful feature, which allows sandboxes to blend with an
400     existing directory structure.
401    
402     Checkout now uses the same function for generating the sandbox
403     structure as does update. This is now necessary, because local files
404     can be clobbered by the checkout.
405    
406 kaz 1.50 Release 0.11, 2002-04-12:
407 kaz 1.46
408     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
409     from CVS/Root and passes it via -d. This is necessary because rtag does not
410     look at a local CVS subdirectory for this information, only the
411     -d option or the environment variable.
412    
413 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
414     what sticky tag the sandbox is updated to.
415    
416     Command for switching branches added (switch or sw).
417    
418     Merge detects that working copy is on non-branch tag and bails.
419 kaz 1.47
420 kaz 1.49 Absolute paths can now be specified as file arguments. These are
421     based from the root directory of the sandbox, not the actual filesystem root
422     directory.
423    
424 kaz 1.45 Release 0.10, 2002-04-03:
425 kaz 1.44
426     Automatic merging implemented. Branch is created using branch command,
427     and merging from another branch is done using simple merge command.
428     Meta-CVS maintains the tags to keep track of what has been merged
429     from what branch to what branch.
430 kaz 1.40
431     Bugfix: checkout -d foo bar was complaining about directory bar already
432     existing, even though it should only care about foo.
433    
434 kaz 1.41 The remove command now requires explicit -R option to recursively remove
435 kaz 1.42 a directory. It has more detailed error reporting.
436 kaz 1.41
437 kaz 1.43 The move command has better error reporting.
438    
439 kaz 1.39 Release 0.9, 2002-03-14:
440 kaz 1.37
441     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
442     (unless --nometa is specified, of course).
443 kaz 1.38
444     The mcvs filt command takes -r <revision> or -D <date> parameters.
445     This means to retrieve the MAP file as of the specified revision or
446     date and use that mapping to perform the filtering translation,
447     rather than using MAP-LOCAL.
448 kaz 1.39
449     The mcvs update command takes filename arguments now and also
450     supports the -p option.
451 kaz 1.37
452 kaz 1.36 Release 0.8, 2002-03-13:
453 kaz 1.28
454 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
455     listed as :ignore in MCVS/TYPES.
456    
457 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
458     as a directory (if it does not already exist and is a non-directory).
459    
460 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
461     directory, which is normally the same as the module name.
462    
463 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
464    
465 kaz 1.33 New global options --error-continue and --error-terminate to disable
466     interactive error handling in two different ways.
467    
468 kaz 1.32 Log level of many messages has changed; many messages have been
469     relegated to debug level.
470    
471 kaz 1.35 The import command now creates a .cvsignore file containing the name
472     MAP-LOCAL.
473    
474 kaz 1.24 Release 0.7, 2002-03-09:
475    
476 kaz 1.27 The import command collects a list of the file suffixes and brings up
477     a text editor to allow the user to edit their CVS keyword expansion
478     behavior. This information is kept in a new metafile called TYPES. The
479     add command also updates TYPES; it identifies any suffixes which are new,
480     and brings up an editor. The F- files now carry suffixes, which
481     simplifies interfacing with CVS, and also allows cvswrappers to work.
482    
483     Recursive add works (mcvs add -R ...).
484    
485     New command line option --nometa allows metafiles to be excluded from
486     diff, tag, and other commands; without the option they are inserted
487     into the list of files to be processed.
488 kaz 1.25
489 kaz 1.27 The commit option now takes an optional list of files or directories,
490     just like tag, diff, and others.
491 kaz 1.26
492 kaz 1.23 Release 0.6, 2002-02-16:
493 kaz 1.19
494 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
495 kaz 1.21
496 kaz 1.27 User can interactively select whether to clobber local files or leave
497     everything alone. Effects on the mapping file of a mcvs move are undone,
498     if the restructuring is rolled back, or raises a condition that leads
499     to termination.
500    
501     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
502     during import, and specifies the CVS keyword expansion mode for files
503     having given suffixes, and can also tell Meta-CVS to ignore certain files
504     when importing or adding.
505 kaz 1.22
506 kaz 1.18 Release 0.5, 2002-02-10:
507 kaz 1.14
508 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
509     sanity checks to prevent adds and moves from accidentally clobbering
510     local files. A rearranging gone bad can be rolled back. Effects
511     of a failed mcvs add can also be rolled back.
512 kaz 1.14
513 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
514 kaz 1.15
515 kaz 1.13 Release 0.4, 2002-02-04:
516 kaz 1.10
517 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
518     which ensures that multiple command lines are generated if necessary to
519     avoid surpassing the operating system limit on argument and environment
520     vector size. This is important when someone wants to diff or stat a
521     subdirectory, which requires Meta-CVS to pick out the individual files
522     at the CVS level.
523    
524     The tag, log, status and annotate commands are now available.
525    
526     The MAP file is sorted on F- file names now, not path names. This
527     improves merging, since files do not move within the file when
528     they are renamed.
529 kaz 1.12
530 kaz 1.5 Release 0.3, 2002-02-02:
531    
532 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
533     exit. The program properly indicates failed termination when it exits
534     due to an error condition.
535    
536     Corrections are made in the command line option processing. If z is an
537     option that takes an argument, and the argument is -zx, then x is
538     treated as the argument to the option. Long options arguments are
539     recognized properly, according to the --opt=arg convention. The option
540     processing is restructured. Most of the commands now take the
541     appropriate cvs command-specific options.
542    
543     The update algorithm performs dupe checking over the map, which could
544     happen during a merge.
545    
546     Some more bugfixing has been done to the move command. It was still not
547     handling right some cases of an unversioned file being clobbered. Also,
548     it wasn't renaming a directory containing just one file.
549    
550     I did some performance investigation for larger file sets, and
551     ended up rewriting the code that computes filesystem restructuring
552     changes and map duplicates.
553 kaz 1.5
554 kaz 1.4 Release 0.2, 2002-01-30:
555    
556 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
557     performs some filesystem tests so it does the right thing when a versioned
558     file is moved over a non-versioned file, or when a file is moved into
559     a directory not known to Meta-CVS. Factored out reading and writing of
560     map files into functions.
561 kaz 1.4
562 kaz 1.2 Release 0.1, 2002-01-28:
563    
564 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
565     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
566     mv command when copying a directory to an existing directory.
567 kaz 1.2
568     Release 0.0, 2002-01-27:
569 kaz 1.1
570 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
571     However, it is already usable in its present state and is being used for
572     version control by its author. If you can program in Common Lisp and would
573     like to help, take a look through the TODO file. Send me patches, ideas,
574     feature requests.

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