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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision - (hide annotations)
Mon Feb 3 05:30:36 2003 UTC (11 years, 2 months ago) by kaz
Branch: mcvs-1-0-branch
Changes since +4 -0 lines
Make tag command work on whole tree if no arguments are given,
just like commit.

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

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