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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision - (hide annotations)
Mon Apr 14 04:29:06 2003 UTC (11 years ago) by kaz
Branch: mcvs-1-0-branch
Changes since +2 -0 lines
* code/grab.lisp (read-word-hash): Convert each token to a simple
string object. This can save a lot of memory when large numbers
of files have to be analyzed.
1 kaz 1.115 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz Release 1.0.6, 2003-0?-??:
5     The create command detects the existence of text editor backup files (or
6     other junk) in the MCVS directory after the editor is invoked on the
7     TYPES file. The user is prompted regarding their removal. If these files are
8     not removed, cvs import will bring them into the repository.
10 kaz When Meta-CVS has to split a large CVS command into two or more
11     invocations with shorter argument lists, it now does not stop when one of
12     these invocations is unsuccessful; it does all of them, and combines
13     their termination indications by a logical AND. There was a bug in this
14     logic also which caused, upon termination failure, a cvs command to be
15     repeated for the same list of files.
17 kaz Synchronization logic has been revamped. Unnecessary synchronizations
18     have been removed, which will make some commands run faster.
19     Synchronizations now have specific directions; for instance before
20     a CVS commit or update, changes are pushed from the directory tree to the MCVS
21     directory only, and after the CVS operation, in the reverse direction only.
23     Meta-CVS will no longer re-create missing F- files by linking from the
24     directory tree. Doing this causes two problems. One is that if a user
25     manually removes a F- file and do ``mcvs up'', she wants CVS to fetch a clean
26     copy and push it into the tree. She does not want the file to be restored
27     from the tree prior to the CVS update. Secondly, sometimes CVS itself
28     removes files. If we re-create the files, CVS will consider them to
29     be ``in the way''.
31 kaz Failures to read from the MAP or MAP-LOCAL files are treated as interactive,
32     continuable errors. By continuing, the user agrees that the behavior will
33     be as if an empty map were read.
35 kaz The grab command uses less memory for performing move analysis.
37 kaz Release 1.0.5, 2003-02-25:
38 kaz
39     Bugfix: some one-argument command line options of CVS must be
40     specifies as a single parameter, with no separation between the
41     option letter and the argument characters. For example:
43     cvs log -r rev-1::rev-2 # invalid
44     cvs log -rrev1::rev2 # correct
46     Meta-CVS accepts either syntax, but it was generating the first form
47     when calling CVS. Now, *all* one-letter options that have an argument
48     are formatted in the second manner.
50 kaz Bugfix: one more waitpid() issue was fixed; on fast machines, under
51     Linux, it was observed that from time to time Meta-CVS would get
52     a -1/ECHILD when waiting for the CVS process.
54 kaz Release 1.0.4, 2003-02-20:
56     Fix remaining occurences of the CVS ``No child processes'' abort
57     problem, affecting the list-branches command, merge command
58     and the -r option of the filt command.
60     Release 1.0.3, 2003-02-12:
62     ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
63     ! experimental main trunk of the Meta-CVS codebase, rather than
64     ! the 1.0 branch. But 1.0.4 does contain all of the changes
65     ! described here.
66 kaz
67     Fix for the CVS ``No child processes'' abort problem. It turns out
68     that CLISP sets the signal handling action for the SIGCHLD signal
69     to SIG_IGN, which is inherited by child processes across the
70     fork() and execvp() calls used in our mcvs_spawn() function.
71     We correct the problem by resetting the signal handler to SIG_DFL
72     just before executing the new process image.
74 kaz New feature, --up option. The argument is a nonnegative integer value
75     (default is zero) which specifies how many sandbox nesting levels to
76     escape out of when locating the sandbox root. This helps work with
77     nested Meta-CVS sandboxes.
79 kaz Release 1.0.2, 2003-02-10:
80 kaz
81     Bugfix in waitpid logic in the C library for running external processes;
82     we were not dealing with an interrupted waitpid.
84 kaz Behavior of mcvs tag is changed: when there are no filename arguments,
85     the whole tree is tagged including the metafiles. In other words, it
86     now works like the commit command.
88 kaz Release 1.0.1, 2003-01-30:
89 kaz
90     Hard link sync optimization: update of a subset of files, commit, and
91     other operations like log and diff don't need to synchronize all
92     hard links, just the ones operated on.
94 kaz The merge and remerge commands support -k option for overriding
95     CVS keyword expansion mode.
97 kaz Fixes to getcwd error handling.
98 kaz
99     Improvement in install.sh script's logic for locating CLISP installation
100     directory.
101 kaz
102 kaz Release 1.0, 2003-01-01:
103 kaz
104 kaz NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
105     because it adds some new C functions to the Lisp executable.
107 kaz Security fix: read-time evaluation was not suppressed when reading
108     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
109     was possible for Alice to check in something that would execute
110     arbitrary code on Bob's computer.
112 kaz Optimization: use fork and exec to launch CVS rather than CLISP's
113     run-program function, which indirects through the shell interpreter.
114 kaz (On Cygwin, the spawnvp function is used).
115 kaz
116 kaz Performance fix: stat() was being called superfluously by the
117     hard synchronization code, twice for each file.
119 kaz Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
120     which is the case under Cygwin with newer CLISP releases.
122 kaz Release 0.99, 2002-11-17:
123 kaz
124 kaz New link command for creating symbolic links.
126 kaz Global option -n (dry run---don't modify filesystem) is processed
127     internally now, not just passed to CVS.
129 kaz Failure to invoke text editor is handled.
131 kaz The -r option of filt is fixed; it has been broken since the change to the
132     new MAP format, because it was reading the raw map representation, not
133     passing it through the right conversion steps that are needed now.
135 kaz Bugfix to purge and remap commands: they were fooled by CVS-generated
136     files in the MCVS/CVS directory. Specifically, files having F- names, and a
137     the suffix ,t.
139 kaz Bugfix to add logic in directory restructuring: there was the possibility
140     of mistakingly taking a clobbered local file to be a new local version of
141     the added file, instead of replacing it. This could happen if the local
142     file had a future timestamp relative to the one coming from the repository.
144 kaz The prop command does not synchronize or write out map if no options are
145     specified.
147 kaz Help text added for move and branch commands. Help text for grab rewritten.
148 kaz
149 kaz The CVSEDITOR and VISUAL environment variables are now checked, not
150     only EDITOR.
152 kaz Release 0.98, 2002-10-13:
153 kaz
154 kaz The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
155     which could cause information loss if the two differ. It now reads from MAP
156     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
157     update operation invoked by prop, as before).
159 kaz Invocation of external programs included in debug trace.
160 kaz
161 kaz The filt command does not filter F- names if they are immediately preceded by
162     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
163     references to the actual F- links, rather than abstract references.
165 kaz The update command now supports the -C option, to fetch the repository
166     copy, throwing away local changes. It also now honors the --metaonly
167     and --nometa options.
168 kaz
169     The export command has been added, for checking out documents without creating
170     a working copy (no MCVS directory in the root of the checkout).
171 kaz
172 kaz The watch command has been added. Note that its syntax differs from that
173     of CVS.
174 kaz
175     The watchers, editors, edit, and unedit commands have been added.
176 kaz
177     A script called mcvs-upgrade is now included, and installs alongside the mcvs
178     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
179     giving users of binary distributions an easy way to upgrade from source
180     code.
182 kaz 1.127 Release 0.97, 2002-10-06:
183 kaz 1.119
184     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
185     (www.cygwin.com). It still relies on hard links, which requires
186     Windows 2000 or XP, and the NTFS filesystem. It probably won't
187     work over FAT.
188 kaz 1.120
189     New --debug option for verbose output.
191     Cleaned up of error messages. Error messages don't specify prefixes like
192     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
193     ``mcvs:'' prefix when printing the messages in a situation when the error is
194     not continuable.
195 kaz 1.119
196 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
197     directories, effectively ignoring arguments that are regular files.
198 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
199 kaz 1.121
200 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
201     directory are no longer silent no-ops, but produce an error.
202 kaz 1.123
203 kaz 1.124 The remap command now preserves property lists, and picks up changes
204     in executable permission.
206     The grab command now notices when a file changes from having execute
207     permission to not having execute permission.
209 kaz 1.126 Operations on the path . now work in a partial sandbox.
211 kaz 1.118 Release 0.96, 2002-09-21:
212 kaz 1.110
213     The restore command was left broken during the change to the new
214     filemap format. It is now fixed.
216 kaz 1.111 The grab command now handles execute permission bits properly.
218 kaz 1.112 Some more commands have detailed help.
220 kaz 1.113 There is now a global option -i which specifies a script to be
221 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
222     instance suppose you have the following script and call it
223     list-matching:
224 kaz 1.113
225     #!/usr/local/bin/mcvs -i
226     (in-sandbox-root-dir
227 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
228 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
229 kaz 1.114 (dolist (entry mapping)
230     (with-slots (path raw-plist) entry
231 kaz 1.117 (when (funcall test-func raw-plist)
232 kaz 1.114 (format t "~a~%" path))))))
234     Then to list the names of files whose "importance" property is
235     a value greater than two, run:
237     ./list-matching '(lambda (plist)
238     (let ((imp (getf plist :importance)))
239     (and imp (> imp 2))))'
240 kaz 1.117
241     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
242     break as Meta-CVS is maintained. There is currently no published set of
243     stable interfaces.
244 kaz 1.113
245 kaz 1.109 Release 0.95, 2002-09-16:
246 kaz 1.104
247 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
248     or the linkkit directory; these have been removed. These materials
249     are available at every CLISP installation; install.sh now finds them
250     and uses them. Users of non-x86 machines ran into problems because of this
251     because linkkit/clisp.h contains architecture-dependent information.
252 kaz 1.104
253 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
254     in the map.
256 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
257     help'' command acts just like ``mcvs --help'' without any arguments. If given
258     an additional parameter which specifies a Meta-CVS command, it produces more
259     detailed documentation for that comand. Help exists already for a few
260     commands.
262 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
263     in beta. It is only five updates away from a 1.0 release.
264 kaz 1.106
265 kaz 1.103 Release 0.24, 2002-09-08:
266 kaz 1.98
267 kaz 1.99 The mapping entries for both symlinks and files have extensible property
268     lists now. These are stored in the optional fourth and fifth list elements,
269     respectively of the :FILE and :SYMLINK map entries.
271     Versioning of the execute permission of files is supported, represented as
272     the :EXEC property of a :FILE mapping entry.
273 kaz 1.98
274 kaz 1.100 Some lame syntax is provided for manipulating properties:
276 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
277 kaz 1.100
278     will set the property FOO to true, set the property BAR to false,
279     and remove the property BAZ, in the files main.c and list.c.
280     The execute permission is represented by the property EXEC.
282 kaz 1.97 Release 0.23, 2002-09-02:
283 kaz 1.95
284 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
285     changes into the mapping.
287     The grab command now figures out moved symlinks. Moved symlinks are those
288     whose pathname has changed, but which continue to point to the same object
289     (which may also have been moved).
290 kaz 1.95
291 kaz 1.94 Release 0.22, 2002-08-31:
292 kaz 1.93
293     Symbolic links are now versioned objects. The format of the MAP file
294     changes to accomodate this; the new Meta-CVS will read old MAP
295     files; when it writes it will write the new format. Old Meta-CVS won't
296     read the new format.
298     When a new module is created from an existing file tree, symbolic
299     links will be recognized and added. The add command will also add
300     symbolic links. Symbolic links can be renamed and moved; this does
301     nothing with their contents. They can point outside of the sandbox
302     using relative or absolute paths.
304 kaz 1.94 TODO:
306 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
307     retarget them; retargetting a link can be done manually by editing MCVS/MAP
308     and updating. Retargetting a link using the ln -s command, won't
309 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
311     The grab command does not yet compute symbolic link moves; a moved symbolic
312     link is treated as a remove and add. This will be easy to fix.
314     The remap command ignores symlinks.
315 kaz 1.93
316 kaz 1.92 Release 0.21, 2002-08-04:
317 kaz 1.88
318 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
319     argument, but using the -r command option. If no revision is specified with
320     -r, then a -A must be specified to make the grab go to the main trunk. This
321     is a safety feature, since grabbing foreign snapshots to the trunk is almost
322     always wrong, though it could be useful during backup recovery, or for fixing
323     mistakes.
325 kaz 1.91 The way operating system functions are targetted has changed. Instead of
326     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
327     has its own module for calling foreign functions. This module is portable;
328     it does not depend on the layout of glibc data structures. So Meta-CVS
329     is in theory now portable to other Unixes (provided they have /dev/urandom).
331 kaz 1.87 Release 0.20, 2002-07-27:
332 kaz 1.86
333     The commit command does a true global commit when given no file or directory
334     parameters, and not given the --metaonly option. This means commiting all
335     changes in the MCVS directory, even if they are in F-files that are not
336     currently mapped.
338 kaz 1.85 Release 0.19, 2002-07-16:
339 kaz 1.81
340     When moving multiple files or directories to a subdirectory, a
341     restart is now provided to skip over bad ones and continue.
343 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
344     files. There are no moves to deduce in that case.
346 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
347     rather than at the abstract root of the module.
349 kaz 1.83 Some other algorithmic improvements made.
350 kaz 1.82
351     The first few sections of a user guide have been written.
353 kaz 1.80 Release 0.18, 2002-07-07:
354 kaz 1.77
355 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
356     subdirectory of the project. Specifying a subdirectory results in a ``partial
357     sandbox'', whose root directory is the specified subdirectory of the larger
358     project. The rest of the project is ``invisible'' to that sandbox. A
359     subdirectory argument can also be given to mcvs grab, which will cause it to
360     integrate the new source tree against a subtree of the Meta-CVS project
361 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
362     that case you get an empty sandbox. Adding files to this sandbox will cause
363     the tree to exist in the project.
364 kaz 1.78
365 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
366     wrongly treating them as removes and adds.
368 kaz 1.76 Release 0.17, 2002-07-02:
369 kaz 1.71
370     The create command no longer takes a vendor branch. Instead the symbol
371     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
373 kaz 1.72 The grab command no longer does useless synchronization on files that
374     are about to be deleted.
376 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
377     that have no mapping.
379     New restore command; re-enters deleted files into the mapping, under
380     the ``lost+found'' directory, using their F- names as sandbox names.
381 kaz 1.73
382 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
383     working copy, it must not delete that working copy's MCVS sub directory.
385 kaz 1.70 Release 0.16, 2002-06-29:
386 kaz 1.67
387     Added new heuristics to grab command. Paths are analyzed to determine
388     move distance. Greater distances reduce the confidence in a move.
389     These rules help sort out grabs in a project where similar or
390     duplicate files are subject to parallel moves, the ambiguity being
391 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
392     now. Common words (those that appear in many files) are ignored when
393     comparing files.
394 kaz 1.67
395 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
396     up a little bit. Most reporting commands like log or diff no longer
397     operate on meta files by default; they must be explicitly told to do
398     so with --meta or --metaonly. Only the commit command implicitly includes
399     metafiles by default, and so if this is not wanted, --nometa must be
400     selected. The update command remains special; if it is given file
401     arguments, it does not include meta files. If given no arguments, it
402     does a global CVS up across the entire project.
404 kaz 1.66 Release 0.15, 2002-06-25:
405 kaz 1.61
406 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
407     paths; the result is a noticeable performance improvement in some commands
408     that process large numbers of files.
409 kaz 1.61
410 kaz 1.62 Renamed ``import'' command to ``create''.
412 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
413     broken :postorder support in directory walking function.
414 kaz 1.63
415 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
416     the checkout was directed to an existing directory.
418 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
419 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
420     It determines what files have been added and removed in the snapshot, and
421     tries to compute which removes and adds are actually moves. This is done by
422     analyzing the actual contents of the files according to a crude algorithm to
423     do fuzzy comparisons, so that even files which were modified as well as moved
424     are discovered.
425 kaz 1.64
426 kaz 1.60 Release 0.14, 2002-06-21:
427 kaz 1.59
428     Bugfix: mcvs add was broken for files that have no suffix, causing
429 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
430     handling was added.
431 kaz 1.59
432 kaz 1.58 Release 0.13, 2002-06-06:
433 kaz 1.55
434     Sandbox synchronization now handles the case of two files having
435     the same timestamp. An error is signaled, with interactive resolution
436     to synchronize either way, or do nothing.
438 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
439     is now a continuable error.
441     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
442     whose suffix is one of the ones cvs ignores by default.
444 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
445     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
446     moves and deletions, and reconstruct the mapping accordingly; that is,
447     it remaps the new structure. This command uses inode numbers to identify
448     files; if a file is copied and then the original is deleted, that won't
449     be recognized as a move.
451 kaz 1.53 Release 0.12, 2002-04-18:
452 kaz 1.51
453     Bugfix: remove was broken in 0.10, fixed now.
455 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
456     ``. not known to Meta-CVS''.
458 kaz 1.52 The checkout operation now can now populate an existing directory, including
459     the current working directory (mcvs co -d . modulename). Of course, the
460     target directory cannot be an existing Meta-CVS sandbox.
461     This is a useful feature, which allows sandboxes to blend with an
462     existing directory structure.
464     Checkout now uses the same function for generating the sandbox
465     structure as does update. This is now necessary, because local files
466     can be clobbered by the checkout.
468 kaz 1.50 Release 0.11, 2002-04-12:
469 kaz 1.46
470     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
471     from CVS/Root and passes it via -d. This is necessary because rtag does not
472     look at a local CVS subdirectory for this information, only the
473     -d option or the environment variable.
475 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
476     what sticky tag the sandbox is updated to.
478     Command for switching branches added (switch or sw).
480     Merge detects that working copy is on non-branch tag and bails.
481 kaz 1.47
482 kaz 1.49 Absolute paths can now be specified as file arguments. These are
483     based from the root directory of the sandbox, not the actual filesystem root
484     directory.
486 kaz 1.45 Release 0.10, 2002-04-03:
487 kaz 1.44
488     Automatic merging implemented. Branch is created using branch command,
489     and merging from another branch is done using simple merge command.
490     Meta-CVS maintains the tags to keep track of what has been merged
491     from what branch to what branch.
492 kaz 1.40
493     Bugfix: checkout -d foo bar was complaining about directory bar already
494     existing, even though it should only care about foo.
496 kaz 1.41 The remove command now requires explicit -R option to recursively remove
497 kaz 1.42 a directory. It has more detailed error reporting.
498 kaz 1.41
499 kaz 1.43 The move command has better error reporting.
501 kaz 1.39 Release 0.9, 2002-03-14:
502 kaz 1.37
503     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
504     (unless --nometa is specified, of course).
505 kaz 1.38
506     The mcvs filt command takes -r <revision> or -D <date> parameters.
507     This means to retrieve the MAP file as of the specified revision or
508     date and use that mapping to perform the filtering translation,
509     rather than using MAP-LOCAL.
510 kaz 1.39
511     The mcvs update command takes filename arguments now and also
512     supports the -p option.
513 kaz 1.37
514 kaz 1.36 Release 0.8, 2002-03-13:
515 kaz 1.28
516 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
517     listed as :ignore in MCVS/TYPES.
519 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
520     as a directory (if it does not already exist and is a non-directory).
522 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
523     directory, which is normally the same as the module name.
525 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
527 kaz 1.33 New global options --error-continue and --error-terminate to disable
528     interactive error handling in two different ways.
530 kaz 1.32 Log level of many messages has changed; many messages have been
531     relegated to debug level.
533 kaz 1.35 The import command now creates a .cvsignore file containing the name
534     MAP-LOCAL.
536 kaz 1.24 Release 0.7, 2002-03-09:
538 kaz 1.27 The import command collects a list of the file suffixes and brings up
539     a text editor to allow the user to edit their CVS keyword expansion
540     behavior. This information is kept in a new metafile called TYPES. The
541     add command also updates TYPES; it identifies any suffixes which are new,
542     and brings up an editor. The F- files now carry suffixes, which
543     simplifies interfacing with CVS, and also allows cvswrappers to work.
545     Recursive add works (mcvs add -R ...).
547     New command line option --nometa allows metafiles to be excluded from
548     diff, tag, and other commands; without the option they are inserted
549     into the list of files to be processed.
550 kaz 1.25
551 kaz 1.27 The commit option now takes an optional list of files or directories,
552     just like tag, diff, and others.
553 kaz 1.26
554 kaz 1.23 Release 0.6, 2002-02-16:
555 kaz 1.19
556 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
557 kaz 1.21
558 kaz 1.27 User can interactively select whether to clobber local files or leave
559     everything alone. Effects on the mapping file of a mcvs move are undone,
560     if the restructuring is rolled back, or raises a condition that leads
561     to termination.
563     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
564     during import, and specifies the CVS keyword expansion mode for files
565     having given suffixes, and can also tell Meta-CVS to ignore certain files
566     when importing or adding.
567 kaz 1.22
568 kaz 1.18 Release 0.5, 2002-02-10:
569 kaz 1.14
570 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
571     sanity checks to prevent adds and moves from accidentally clobbering
572     local files. A rearranging gone bad can be rolled back. Effects
573     of a failed mcvs add can also be rolled back.
574 kaz 1.14
575 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
576 kaz 1.15
577 kaz 1.13 Release 0.4, 2002-02-04:
578 kaz 1.10
579 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
580     which ensures that multiple command lines are generated if necessary to
581     avoid surpassing the operating system limit on argument and environment
582     vector size. This is important when someone wants to diff or stat a
583     subdirectory, which requires Meta-CVS to pick out the individual files
584     at the CVS level.
586     The tag, log, status and annotate commands are now available.
588     The MAP file is sorted on F- file names now, not path names. This
589     improves merging, since files do not move within the file when
590     they are renamed.
591 kaz 1.12
592 kaz 1.5 Release 0.3, 2002-02-02:
594 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
595     exit. The program properly indicates failed termination when it exits
596     due to an error condition.
598     Corrections are made in the command line option processing. If z is an
599     option that takes an argument, and the argument is -zx, then x is
600     treated as the argument to the option. Long options arguments are
601     recognized properly, according to the --opt=arg convention. The option
602     processing is restructured. Most of the commands now take the
603     appropriate cvs command-specific options.
605     The update algorithm performs dupe checking over the map, which could
606     happen during a merge.
608     Some more bugfixing has been done to the move command. It was still not
609     handling right some cases of an unversioned file being clobbered. Also,
610     it wasn't renaming a directory containing just one file.
612     I did some performance investigation for larger file sets, and
613     ended up rewriting the code that computes filesystem restructuring
614     changes and map duplicates.
615 kaz 1.5
616 kaz 1.4 Release 0.2, 2002-01-30:
618 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
619     performs some filesystem tests so it does the right thing when a versioned
620     file is moved over a non-versioned file, or when a file is moved into
621     a directory not known to Meta-CVS. Factored out reading and writing of
622     map files into functions.
623 kaz 1.4
624 kaz 1.2 Release 0.1, 2002-01-28:
626 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
627     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
628     mv command when copying a directory to an existing directory.
629 kaz 1.2
630     Release 0.0, 2002-01-27:
631 kaz 1.1
632 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
633     However, it is already usable in its present state and is being used for
634     version control by its author. If you can program in Common Lisp and would
635     like to help, take a look through the TODO file. Send me patches, ideas,
636     feature requests.

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