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Revision 1.166 - (hide annotations)
Thu Feb 27 06:01:28 2003 UTC (11 years, 1 month ago) by kaz
Branch: MAIN
Changes since 1.165: +7 -0 lines
Merging from mcvs-1-0-branch.

* code/create.lisp (mcvs-create): After the TYPES file is
edited, scan the MCVS directory for unexpected files.
The intent is to detect text editor backups. If any are
found, some interactive error handling lets the user acknowledge
their deletion. If they are not deleted, then cvs import will
bring them into the repository. This behavior was discovered
by Johannes Grødem who suggested that it could be handled.
1 kaz 1.162 Release for Meta-CVS
2 kaz 1.1
3 kaz 1.142 Release ?.??, 200?-??-??:
4    
5 kaz 1.162 All Lisp symbols are in a package.
6 kaz 1.142
7 kaz 1.166 Release 1.0.6, 2003-0?-??:
8    
9     The create command detects the existence of text editor backup files (or
10     other junk) in the MCVS directory after the editor is invoked on the
11     TYPES file. The user is prompted regarding their removal. If these files are
12     not removed, cvs import will bring them into the repository.
13    
14 kaz 1.165 Release 1.0.5, 2003-02-25:
15 kaz 1.163
16     Bugfix: some one-argument command line options of CVS must be
17     specifies as a single parameter, with no separation between the
18     option letter and the argument characters. For example:
19    
20     cvs log -r rev-1::rev-2 # invalid
21     cvs log -rrev1::rev2 # correct
22    
23     Meta-CVS accepts either syntax, but it was generating the first form
24     when calling CVS. Now, *all* one-letter options that have an argument
25     are formatted in the second manner.
26    
27 kaz 1.164 Bugfix: one more waitpid() issue was fixed; on fast machines, under
28     Linux, it was observed that from time to time Meta-CVS would get
29     a -1/ECHILD when waiting for the CVS process.
30    
31 kaz 1.162 Release 1.0.4, 2003-02-20:
32    
33     Fix remaining occurences of the CVS ``No child processes'' abort
34     problem, affecting the list-branches command, merge command
35     and the -r option of the filt command.
36    
37     Release 1.0.3, 2003-02-12:
38    
39     ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
40     ! experimental main trunk of the Meta-CVS codebase, rather than
41     ! the 1.0 branch. But 1.0.4 does contain all of the changes
42     ! described here.
43 kaz 1.160
44     Fix for the CVS ``No child processes'' abort problem. It turns out
45     that CLISP sets the signal handling action for the SIGCHLD signal
46     to SIG_IGN, which is inherited by child processes across the
47     fork() and execvp() calls used in our mcvs_spawn() function.
48     We correct the problem by resetting the signal handler to SIG_DFL
49     just before executing the new process image.
50 kaz 1.161
51     New feature, --up option. The argument is a nonnegative integer value
52     (default is zero) which specifies how many sandbox nesting levels to
53     escape out of when locating the sandbox root. This helps work with
54     nested Meta-CVS sandboxes.
55 kaz 1.160
56 kaz 1.162 Release 1.0.2, 2003-02-10:
57 kaz 1.157
58     Bugfix in waitpid logic in the C library for running external processes;
59     we were not dealing with an interrupted waitpid.
60    
61 kaz 1.158 Behavior of mcvs tag is changed: when there are no filename arguments,
62     the whole tree is tagged including the metafiles. In other words, it
63     now works like the commit command.
64    
65 kaz 1.157 Release 1.0.1, 2003-01-30:
66 kaz 1.154
67     Hard link sync optimization: update of a subset of files, commit, and
68     other operations like log and diff don't need to synchronize all
69     hard links, just the ones operated on.
70    
71 kaz 1.155 The merge and remerge commands support -k option for overriding
72     CVS keyword expansion mode.
73    
74 kaz 1.156 Fixes to getcwd error handling.
75 kaz 1.157
76     Improvement in install.sh script's logic for locating CLISP installation
77     directory.
78 kaz 1.156
79 kaz 1.153 Release 1.0, 2003-01-01:
80 kaz 1.147
81 kaz 1.151 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
82     because it adds some new C functions to the Lisp executable.
83    
84 kaz 1.147 Security fix: read-time evaluation was not suppressed when reading
85     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
86     was possible for Alice to check in something that would execute
87     arbitrary code on Bob's computer.
88    
89 kaz 1.148 Optimization: use fork and exec to launch CVS rather than CLISP's
90     run-program function, which indirects through the shell interpreter.
91 kaz 1.153 (On Cygwin, the spawnvp function is used).
92 kaz 1.148
93 kaz 1.149 Performance fix: stat() was being called superfluously by the
94     hard synchronization code, twice for each file.
95    
96 kaz 1.150 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
97     which is the case under Cygwin with newer CLISP releases.
98    
99 kaz 1.146 Release 0.99, 2002-11-17:
100 kaz 1.135
101 kaz 1.140 New link command for creating symbolic links.
102    
103 kaz 1.144 Global option -n (dry run---don't modify filesystem) is processed
104     internally now, not just passed to CVS.
105    
106 kaz 1.135 Failure to invoke text editor is handled.
107    
108 kaz 1.136 The -r option of filt is fixed; it has been broken since the change to the
109     new MAP format, because it was reading the raw map representation, not
110     passing it through the right conversion steps that are needed now.
111    
112 kaz 1.138 Bugfix to purge and remap commands: they were fooled by CVS-generated
113     files in the MCVS/CVS directory. Specifically, files having F- names, and a
114     the suffix ,t.
115    
116 kaz 1.141 Bugfix to add logic in directory restructuring: there was the possibility
117     of mistakingly taking a clobbered local file to be a new local version of
118     the added file, instead of replacing it. This could happen if the local
119     file had a future timestamp relative to the one coming from the repository.
120    
121 kaz 1.143 The prop command does not synchronize or write out map if no options are
122     specified.
123    
124 kaz 1.144 Help text added for move and branch commands. Help text for grab rewritten.
125 kaz 1.137
126 kaz 1.145 The CVSEDITOR and VISUAL environment variables are now checked, not
127     only EDITOR.
128    
129 kaz 1.134 Release 0.98, 2002-10-13:
130 kaz 1.128
131 kaz 1.133 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
132     which could cause information loss if the two differ. It now reads from MAP
133     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
134     update operation invoked by prop, as before).
135    
136     Invocation of external programs included in debug trace.
137 kaz 1.128
138     The filt command does not filter F- names if they are immediately preceded by
139     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
140     references to the actual F- links, rather than abstract references.
141    
142 kaz 1.129 The update command now supports the -C option, to fetch the repository
143     copy, throwing away local changes. It also now honors the --metaonly
144     and --nometa options.
145 kaz 1.130
146     The export command has been added, for checking out documents without creating
147     a working copy (no MCVS directory in the root of the checkout).
148 kaz 1.131
149 kaz 1.133 The watch command has been added. Note that its syntax differs from that
150     of CVS.
151 kaz 1.132
152     The watchers, editors, edit, and unedit commands have been added.
153 kaz 1.134
154     A script called mcvs-upgrade is now included, and installs alongside the mcvs
155     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
156     giving users of binary distributions an easy way to upgrade from source
157     code.
158    
159 kaz 1.127 Release 0.97, 2002-10-06:
160 kaz 1.119
161     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
162     (www.cygwin.com). It still relies on hard links, which requires
163     Windows 2000 or XP, and the NTFS filesystem. It probably won't
164     work over FAT.
165 kaz 1.120
166     New --debug option for verbose output.
167    
168     Cleaned up of error messages. Error messages don't specify prefixes like
169     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
170     ``mcvs:'' prefix when printing the messages in a situation when the error is
171     not continuable.
172 kaz 1.119
173 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
174     directories, effectively ignoring arguments that are regular files.
175 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
176 kaz 1.121
177 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
178     directory are no longer silent no-ops, but produce an error.
179 kaz 1.123
180 kaz 1.124 The remap command now preserves property lists, and picks up changes
181     in executable permission.
182    
183     The grab command now notices when a file changes from having execute
184     permission to not having execute permission.
185    
186 kaz 1.126 Operations on the path . now work in a partial sandbox.
187    
188 kaz 1.118 Release 0.96, 2002-09-21:
189 kaz 1.110
190     The restore command was left broken during the change to the new
191     filemap format. It is now fixed.
192    
193 kaz 1.111 The grab command now handles execute permission bits properly.
194    
195 kaz 1.112 Some more commands have detailed help.
196    
197 kaz 1.113 There is now a global option -i which specifies a script to be
198 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
199     instance suppose you have the following script and call it
200     list-matching:
201 kaz 1.113
202     #!/usr/local/bin/mcvs -i
203     (in-sandbox-root-dir
204 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
205 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
206 kaz 1.114 (dolist (entry mapping)
207     (with-slots (path raw-plist) entry
208 kaz 1.117 (when (funcall test-func raw-plist)
209 kaz 1.114 (format t "~a~%" path))))))
210    
211     Then to list the names of files whose "importance" property is
212     a value greater than two, run:
213    
214     ./list-matching '(lambda (plist)
215     (let ((imp (getf plist :importance)))
216     (and imp (> imp 2))))'
217 kaz 1.117
218     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
219     break as Meta-CVS is maintained. There is currently no published set of
220     stable interfaces.
221 kaz 1.113
222 kaz 1.109 Release 0.95, 2002-09-16:
223 kaz 1.104
224 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
225     or the linkkit directory; these have been removed. These materials
226     are available at every CLISP installation; install.sh now finds them
227     and uses them. Users of non-x86 machines ran into problems because of this
228     because linkkit/clisp.h contains architecture-dependent information.
229 kaz 1.104
230 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
231     in the map.
232    
233 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
234     help'' command acts just like ``mcvs --help'' without any arguments. If given
235     an additional parameter which specifies a Meta-CVS command, it produces more
236     detailed documentation for that comand. Help exists already for a few
237     commands.
238    
239 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
240     in beta. It is only five updates away from a 1.0 release.
241 kaz 1.106
242 kaz 1.103 Release 0.24, 2002-09-08:
243 kaz 1.98
244 kaz 1.99 The mapping entries for both symlinks and files have extensible property
245     lists now. These are stored in the optional fourth and fifth list elements,
246     respectively of the :FILE and :SYMLINK map entries.
247    
248     Versioning of the execute permission of files is supported, represented as
249     the :EXEC property of a :FILE mapping entry.
250 kaz 1.98
251 kaz 1.100 Some lame syntax is provided for manipulating properties:
252    
253 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
254 kaz 1.100
255     will set the property FOO to true, set the property BAR to false,
256     and remove the property BAZ, in the files main.c and list.c.
257     The execute permission is represented by the property EXEC.
258    
259 kaz 1.97 Release 0.23, 2002-09-02:
260 kaz 1.95
261 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
262     changes into the mapping.
263    
264     The grab command now figures out moved symlinks. Moved symlinks are those
265     whose pathname has changed, but which continue to point to the same object
266     (which may also have been moved).
267 kaz 1.95
268 kaz 1.94 Release 0.22, 2002-08-31:
269 kaz 1.93
270     Symbolic links are now versioned objects. The format of the MAP file
271     changes to accomodate this; the new Meta-CVS will read old MAP
272     files; when it writes it will write the new format. Old Meta-CVS won't
273     read the new format.
274    
275     When a new module is created from an existing file tree, symbolic
276     links will be recognized and added. The add command will also add
277     symbolic links. Symbolic links can be renamed and moved; this does
278     nothing with their contents. They can point outside of the sandbox
279     using relative or absolute paths.
280    
281 kaz 1.94 TODO:
282    
283 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
284     retarget them; retargetting a link can be done manually by editing MCVS/MAP
285     and updating. Retargetting a link using the ln -s command, won't
286 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
287    
288     The grab command does not yet compute symbolic link moves; a moved symbolic
289     link is treated as a remove and add. This will be easy to fix.
290    
291     The remap command ignores symlinks.
292 kaz 1.93
293 kaz 1.92 Release 0.21, 2002-08-04:
294 kaz 1.88
295 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
296     argument, but using the -r command option. If no revision is specified with
297     -r, then a -A must be specified to make the grab go to the main trunk. This
298     is a safety feature, since grabbing foreign snapshots to the trunk is almost
299     always wrong, though it could be useful during backup recovery, or for fixing
300     mistakes.
301    
302 kaz 1.91 The way operating system functions are targetted has changed. Instead of
303     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
304     has its own module for calling foreign functions. This module is portable;
305     it does not depend on the layout of glibc data structures. So Meta-CVS
306     is in theory now portable to other Unixes (provided they have /dev/urandom).
307    
308 kaz 1.87 Release 0.20, 2002-07-27:
309 kaz 1.86
310     The commit command does a true global commit when given no file or directory
311     parameters, and not given the --metaonly option. This means commiting all
312     changes in the MCVS directory, even if they are in F-files that are not
313     currently mapped.
314    
315 kaz 1.85 Release 0.19, 2002-07-16:
316 kaz 1.81
317     When moving multiple files or directories to a subdirectory, a
318     restart is now provided to skip over bad ones and continue.
319    
320 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
321     files. There are no moves to deduce in that case.
322    
323 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
324     rather than at the abstract root of the module.
325    
326 kaz 1.83 Some other algorithmic improvements made.
327 kaz 1.82
328     The first few sections of a user guide have been written.
329    
330 kaz 1.80 Release 0.18, 2002-07-07:
331 kaz 1.77
332 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
333     subdirectory of the project. Specifying a subdirectory results in a ``partial
334     sandbox'', whose root directory is the specified subdirectory of the larger
335     project. The rest of the project is ``invisible'' to that sandbox. A
336     subdirectory argument can also be given to mcvs grab, which will cause it to
337     integrate the new source tree against a subtree of the Meta-CVS project
338 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
339     that case you get an empty sandbox. Adding files to this sandbox will cause
340     the tree to exist in the project.
341 kaz 1.78
342 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
343     wrongly treating them as removes and adds.
344    
345 kaz 1.76 Release 0.17, 2002-07-02:
346 kaz 1.71
347     The create command no longer takes a vendor branch. Instead the symbol
348     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
349    
350 kaz 1.72 The grab command no longer does useless synchronization on files that
351     are about to be deleted.
352    
353 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
354     that have no mapping.
355    
356     New restore command; re-enters deleted files into the mapping, under
357     the ``lost+found'' directory, using their F- names as sandbox names.
358 kaz 1.73
359 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
360     working copy, it must not delete that working copy's MCVS sub directory.
361    
362 kaz 1.70 Release 0.16, 2002-06-29:
363 kaz 1.67
364     Added new heuristics to grab command. Paths are analyzed to determine
365     move distance. Greater distances reduce the confidence in a move.
366     These rules help sort out grabs in a project where similar or
367     duplicate files are subject to parallel moves, the ambiguity being
368 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
369     now. Common words (those that appear in many files) are ignored when
370     comparing files.
371 kaz 1.67
372 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
373     up a little bit. Most reporting commands like log or diff no longer
374     operate on meta files by default; they must be explicitly told to do
375     so with --meta or --metaonly. Only the commit command implicitly includes
376     metafiles by default, and so if this is not wanted, --nometa must be
377     selected. The update command remains special; if it is given file
378     arguments, it does not include meta files. If given no arguments, it
379     does a global CVS up across the entire project.
380    
381 kaz 1.66 Release 0.15, 2002-06-25:
382 kaz 1.61
383 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
384     paths; the result is a noticeable performance improvement in some commands
385     that process large numbers of files.
386 kaz 1.61
387 kaz 1.62 Renamed ``import'' command to ``create''.
388    
389 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
390     broken :postorder support in directory walking function.
391 kaz 1.63
392 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
393     the checkout was directed to an existing directory.
394    
395 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
396 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
397     It determines what files have been added and removed in the snapshot, and
398     tries to compute which removes and adds are actually moves. This is done by
399     analyzing the actual contents of the files according to a crude algorithm to
400     do fuzzy comparisons, so that even files which were modified as well as moved
401     are discovered.
402 kaz 1.64
403 kaz 1.60 Release 0.14, 2002-06-21:
404 kaz 1.59
405     Bugfix: mcvs add was broken for files that have no suffix, causing
406 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
407     handling was added.
408 kaz 1.59
409 kaz 1.58 Release 0.13, 2002-06-06:
410 kaz 1.55
411     Sandbox synchronization now handles the case of two files having
412     the same timestamp. An error is signaled, with interactive resolution
413     to synchronize either way, or do nothing.
414    
415 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
416     is now a continuable error.
417    
418     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
419     whose suffix is one of the ones cvs ignores by default.
420    
421 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
422     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
423     moves and deletions, and reconstruct the mapping accordingly; that is,
424     it remaps the new structure. This command uses inode numbers to identify
425     files; if a file is copied and then the original is deleted, that won't
426     be recognized as a move.
427    
428 kaz 1.53 Release 0.12, 2002-04-18:
429 kaz 1.51
430     Bugfix: remove was broken in 0.10, fixed now.
431    
432 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
433     ``. not known to Meta-CVS''.
434    
435 kaz 1.52 The checkout operation now can now populate an existing directory, including
436     the current working directory (mcvs co -d . modulename). Of course, the
437     target directory cannot be an existing Meta-CVS sandbox.
438     This is a useful feature, which allows sandboxes to blend with an
439     existing directory structure.
440    
441     Checkout now uses the same function for generating the sandbox
442     structure as does update. This is now necessary, because local files
443     can be clobbered by the checkout.
444    
445 kaz 1.50 Release 0.11, 2002-04-12:
446 kaz 1.46
447     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
448     from CVS/Root and passes it via -d. This is necessary because rtag does not
449     look at a local CVS subdirectory for this information, only the
450     -d option or the environment variable.
451    
452 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
453     what sticky tag the sandbox is updated to.
454    
455     Command for switching branches added (switch or sw).
456    
457     Merge detects that working copy is on non-branch tag and bails.
458 kaz 1.47
459 kaz 1.49 Absolute paths can now be specified as file arguments. These are
460     based from the root directory of the sandbox, not the actual filesystem root
461     directory.
462    
463 kaz 1.45 Release 0.10, 2002-04-03:
464 kaz 1.44
465     Automatic merging implemented. Branch is created using branch command,
466     and merging from another branch is done using simple merge command.
467     Meta-CVS maintains the tags to keep track of what has been merged
468     from what branch to what branch.
469 kaz 1.40
470     Bugfix: checkout -d foo bar was complaining about directory bar already
471     existing, even though it should only care about foo.
472    
473 kaz 1.41 The remove command now requires explicit -R option to recursively remove
474 kaz 1.42 a directory. It has more detailed error reporting.
475 kaz 1.41
476 kaz 1.43 The move command has better error reporting.
477    
478 kaz 1.39 Release 0.9, 2002-03-14:
479 kaz 1.37
480     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
481     (unless --nometa is specified, of course).
482 kaz 1.38
483     The mcvs filt command takes -r <revision> or -D <date> parameters.
484     This means to retrieve the MAP file as of the specified revision or
485     date and use that mapping to perform the filtering translation,
486     rather than using MAP-LOCAL.
487 kaz 1.39
488     The mcvs update command takes filename arguments now and also
489     supports the -p option.
490 kaz 1.37
491 kaz 1.36 Release 0.8, 2002-03-13:
492 kaz 1.28
493 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
494     listed as :ignore in MCVS/TYPES.
495    
496 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
497     as a directory (if it does not already exist and is a non-directory).
498    
499 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
500     directory, which is normally the same as the module name.
501    
502 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
503    
504 kaz 1.33 New global options --error-continue and --error-terminate to disable
505     interactive error handling in two different ways.
506    
507 kaz 1.32 Log level of many messages has changed; many messages have been
508     relegated to debug level.
509    
510 kaz 1.35 The import command now creates a .cvsignore file containing the name
511     MAP-LOCAL.
512    
513 kaz 1.24 Release 0.7, 2002-03-09:
514    
515 kaz 1.27 The import command collects a list of the file suffixes and brings up
516     a text editor to allow the user to edit their CVS keyword expansion
517     behavior. This information is kept in a new metafile called TYPES. The
518     add command also updates TYPES; it identifies any suffixes which are new,
519     and brings up an editor. The F- files now carry suffixes, which
520     simplifies interfacing with CVS, and also allows cvswrappers to work.
521    
522     Recursive add works (mcvs add -R ...).
523    
524     New command line option --nometa allows metafiles to be excluded from
525     diff, tag, and other commands; without the option they are inserted
526     into the list of files to be processed.
527 kaz 1.25
528 kaz 1.27 The commit option now takes an optional list of files or directories,
529     just like tag, diff, and others.
530 kaz 1.26
531 kaz 1.23 Release 0.6, 2002-02-16:
532 kaz 1.19
533 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
534 kaz 1.21
535 kaz 1.27 User can interactively select whether to clobber local files or leave
536     everything alone. Effects on the mapping file of a mcvs move are undone,
537     if the restructuring is rolled back, or raises a condition that leads
538     to termination.
539    
540     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
541     during import, and specifies the CVS keyword expansion mode for files
542     having given suffixes, and can also tell Meta-CVS to ignore certain files
543     when importing or adding.
544 kaz 1.22
545 kaz 1.18 Release 0.5, 2002-02-10:
546 kaz 1.14
547 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
548     sanity checks to prevent adds and moves from accidentally clobbering
549     local files. A rearranging gone bad can be rolled back. Effects
550     of a failed mcvs add can also be rolled back.
551 kaz 1.14
552 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
553 kaz 1.15
554 kaz 1.13 Release 0.4, 2002-02-04:
555 kaz 1.10
556 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
557     which ensures that multiple command lines are generated if necessary to
558     avoid surpassing the operating system limit on argument and environment
559     vector size. This is important when someone wants to diff or stat a
560     subdirectory, which requires Meta-CVS to pick out the individual files
561     at the CVS level.
562    
563     The tag, log, status and annotate commands are now available.
564    
565     The MAP file is sorted on F- file names now, not path names. This
566     improves merging, since files do not move within the file when
567     they are renamed.
568 kaz 1.12
569 kaz 1.5 Release 0.3, 2002-02-02:
570    
571 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
572     exit. The program properly indicates failed termination when it exits
573     due to an error condition.
574    
575     Corrections are made in the command line option processing. If z is an
576     option that takes an argument, and the argument is -zx, then x is
577     treated as the argument to the option. Long options arguments are
578     recognized properly, according to the --opt=arg convention. The option
579     processing is restructured. Most of the commands now take the
580     appropriate cvs command-specific options.
581    
582     The update algorithm performs dupe checking over the map, which could
583     happen during a merge.
584    
585     Some more bugfixing has been done to the move command. It was still not
586     handling right some cases of an unversioned file being clobbered. Also,
587     it wasn't renaming a directory containing just one file.
588    
589     I did some performance investigation for larger file sets, and
590     ended up rewriting the code that computes filesystem restructuring
591     changes and map duplicates.
592 kaz 1.5
593 kaz 1.4 Release 0.2, 2002-01-30:
594    
595 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
596     performs some filesystem tests so it does the right thing when a versioned
597     file is moved over a non-versioned file, or when a file is moved into
598     a directory not known to Meta-CVS. Factored out reading and writing of
599     map files into functions.
600 kaz 1.4
601 kaz 1.2 Release 0.1, 2002-01-28:
602    
603 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
604     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
605     mv command when copying a directory to an existing directory.
606 kaz 1.2
607     Release 0.0, 2002-01-27:
608 kaz 1.1
609 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
610     However, it is already usable in its present state and is being used for
611     version control by its author. If you can program in Common Lisp and would
612     like to help, take a look through the TODO file. Send me patches, ideas,
613     feature requests.

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