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Revision 1.190 - (hide annotations)
Mon Mar 8 06:22:36 2004 UTC (10 years, 1 month ago) by kaz
Branch: MAIN
Changes since 1.189: +1 -3 lines
Preparation for 1.1.0 release.
1 kaz 1.189 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz 1.190 Release 1.1.0, 2004-03-??:
4 kaz 1.142
5 kaz 1.188 All Lisp symbols are in a package. Compiling and loading is simplified,
6     and more portable.
7 kaz 1.187
8     The ``mcvs convert'' command now creates the TYPES and .cvsignore files.
10 kaz 1.186 Release 1.0.12, 2004-01-31:
11 kaz 1.184
12 kaz 1.185 Fixes various bugs in ``mcvs convert'', so that it is
13 kaz 1.184 actually useable now, albeit still far from a perfect CVS
14     migration tool.
15 kaz 1.185
16     The remap command can now purge the MAP of entries that refer to non-existent
17     F- files, which is useful for cleaning up after the convert algorithm,
18     if necessary.
19 kaz 1.184
20     Release 1.0.11, 2004-01-28:
21 kaz 1.182
22 kaz 1.183 Fixes breakage of list-branches command introduced in last release.
24     Fixes failures in grab command when pulling new baseline over
25     partial sandbox. Renamed symlinks, and execute permissions of files
26     were being accessed using abstract instead of real path.
27 kaz 1.182
28 kaz 1.181 Release 1.0.10, 2004-01-09:
30     Builds on CLISP 2.32. The lb command no longer produces bogus warning
31     when working copy is sticky to a version tag.
33 kaz 1.180 Release 1.0.9, 2003-11-24:
34 kaz 1.178
35     Failures to open terminal for reasons other than non-existence
36     of the object are handled (e.g. ``no such device'', etc).
38 kaz 1.179 The --nometa option now works properly in those commands that
39     operate on the whole project when no file arguments are given
40     (tag, update, commit). Also, these commands no longer implicitly
41     include the meta files when file arguments *are* given.
42     These files can be included explicitly with the --meta global option.
44 kaz 1.177 Release 1.0.8, 2003-06-03:
45 kaz 1.174
46 kaz 1.175 The Cygwin /dev/tty problem is partially addressed. The program
47     won't fail if /dev does not exist, but emits a warning message,
48     and disables interactive error handling. The workaround is to use
49     ``mkdir /dev''. This is a CLISP issue; its OPEN function expects the
50     full path to a file to actually exist, but on Cygwin, there are fake
51     /dev/* paths even though /dev does not exist. If a real /dev directory
52     does in fact exist, it does not interfere with these magic paths.
53 kaz 1.174
54 kaz 1.176 The ``mcvs fi'' command no longer performs expansion on F- names
55     that are preceded by a slash.
57 kaz 1.174 Release 1.0.7, 2003-04-23:
58 kaz 1.170
59 kaz 1.173 New commands sync-to-cvs and sync-from-cvs expose the hard link
60     synchronization algorithm.
62 kaz 1.170 Revamped error recovery logic. To continue in an error situation now
63     consistently means ``take the bold action that may erase data''
64     or ``proceed in the most obvious way to finish the specified job''.
65 kaz 1.172 It never means ``roll back the operation and bail'', which was
66     confusing.
67 kaz 1.170
68 kaz 1.172 Termination is no longer unsafe; the `T' menu command, and the
69     equivalent --error-terminate global option perform all necessary
70     restoration and cleanup.
72     Errors that have more information to print, like a list of files or
73     whatever, now indicate it in a standard way which translates to the
74     `I' menu command.
75 kaz 1.171
76     Chatter output goes to standard error rather than standard output,
77     as do all error messages.
79     The interactive error menu now talks to the user using the controlling
80     tty, meaning that it will work even if the input or output of the
81 kaz 1.172 mcvs command are redirected. If no controlling tty is available,
82     then interactive error handling is disabled; the default behavior
83     is then like --error-terminate but can of course be overridden by
84     --error-continue.
85 kaz 1.171
86 kaz 1.169 Release 1.0.6, 2003-04-14:
87 kaz 1.166
88     The create command detects the existence of text editor backup files (or
89     other junk) in the MCVS directory after the editor is invoked on the
90     TYPES file. The user is prompted regarding their removal. If these files are
91     not removed, cvs import will bring them into the repository.
93 kaz 1.167 When Meta-CVS has to split a large CVS command into two or more
94     invocations with shorter argument lists, it now does not stop when one of
95     these invocations is unsuccessful; it does all of them, and combines
96     their termination indications by a logical AND. There was a bug in this
97     logic also which caused, upon termination failure, a cvs command to be
98     repeated for the same list of files.
100     Synchronization logic has been revamped. Unnecessary synchronizations
101     have been removed, which will make some commands run faster.
102     Synchronizations now have specific directions; for instance before
103     a CVS commit or update, changes are pushed from the directory tree to the MCVS
104     directory only, and after the CVS operation, in the reverse direction only.
106     Meta-CVS will no longer re-create missing F- files by linking from the
107     directory tree. Doing this causes two problems. One is that if a user
108     manually removes a F- file and do ``mcvs up'', she wants CVS to fetch a clean
109     copy and push it into the tree. She does not want the file to be restored
110     from the tree prior to the CVS update. Secondly, sometimes CVS itself
111     removes files. If we re-create the files, CVS will consider them to
112     be ``in the way''.
114     Failures to read from the MAP or MAP-LOCAL files are treated as interactive,
115     continuable errors. By continuing, the user agrees that the behavior will
116     be as if an empty map were read.
118 kaz 1.168 The grab command uses less memory for performing move analysis.
120 kaz 1.165 Release 1.0.5, 2003-02-25:
121 kaz 1.163
122     Bugfix: some one-argument command line options of CVS must be
123     specifies as a single parameter, with no separation between the
124     option letter and the argument characters. For example:
126     cvs log -r rev-1::rev-2 # invalid
127     cvs log -rrev1::rev2 # correct
129     Meta-CVS accepts either syntax, but it was generating the first form
130     when calling CVS. Now, *all* one-letter options that have an argument
131     are formatted in the second manner.
133 kaz 1.164 Bugfix: one more waitpid() issue was fixed; on fast machines, under
134     Linux, it was observed that from time to time Meta-CVS would get
135     a -1/ECHILD when waiting for the CVS process.
137 kaz 1.162 Release 1.0.4, 2003-02-20:
139     Fix remaining occurences of the CVS ``No child processes'' abort
140     problem, affecting the list-branches command, merge command
141     and the -r option of the filt command.
143     Release 1.0.3, 2003-02-12:
145     ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
146     ! experimental main trunk of the Meta-CVS codebase, rather than
147     ! the 1.0 branch. But 1.0.4 does contain all of the changes
148     ! described here.
149 kaz 1.160
150     Fix for the CVS ``No child processes'' abort problem. It turns out
151     that CLISP sets the signal handling action for the SIGCHLD signal
152     to SIG_IGN, which is inherited by child processes across the
153     fork() and execvp() calls used in our mcvs_spawn() function.
154     We correct the problem by resetting the signal handler to SIG_DFL
155     just before executing the new process image.
156 kaz 1.161
157     New feature, --up option. The argument is a nonnegative integer value
158     (default is zero) which specifies how many sandbox nesting levels to
159     escape out of when locating the sandbox root. This helps work with
160     nested Meta-CVS sandboxes.
161 kaz 1.160
162 kaz 1.162 Release 1.0.2, 2003-02-10:
163 kaz 1.157
164     Bugfix in waitpid logic in the C library for running external processes;
165     we were not dealing with an interrupted waitpid.
167 kaz 1.158 Behavior of mcvs tag is changed: when there are no filename arguments,
168     the whole tree is tagged including the metafiles. In other words, it
169     now works like the commit command.
171 kaz 1.157 Release 1.0.1, 2003-01-30:
172 kaz 1.154
173     Hard link sync optimization: update of a subset of files, commit, and
174     other operations like log and diff don't need to synchronize all
175     hard links, just the ones operated on.
177 kaz 1.155 The merge and remerge commands support -k option for overriding
178     CVS keyword expansion mode.
180 kaz 1.156 Fixes to getcwd error handling.
181 kaz 1.157
182     Improvement in install.sh script's logic for locating CLISP installation
183     directory.
184 kaz 1.156
185 kaz 1.153 Release 1.0, 2003-01-01:
186 kaz 1.147
187 kaz 1.151 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
188     because it adds some new C functions to the Lisp executable.
190 kaz 1.147 Security fix: read-time evaluation was not suppressed when reading
191     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
192     was possible for Alice to check in something that would execute
193     arbitrary code on Bob's computer.
195 kaz 1.148 Optimization: use fork and exec to launch CVS rather than CLISP's
196     run-program function, which indirects through the shell interpreter.
197 kaz 1.153 (On Cygwin, the spawnvp function is used).
198 kaz 1.148
199 kaz 1.149 Performance fix: stat() was being called superfluously by the
200     hard synchronization code, twice for each file.
202 kaz 1.150 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
203     which is the case under Cygwin with newer CLISP releases.
205 kaz 1.146 Release 0.99, 2002-11-17:
206 kaz 1.135
207 kaz 1.140 New link command for creating symbolic links.
209 kaz 1.144 Global option -n (dry run---don't modify filesystem) is processed
210     internally now, not just passed to CVS.
212 kaz 1.135 Failure to invoke text editor is handled.
214 kaz 1.136 The -r option of filt is fixed; it has been broken since the change to the
215     new MAP format, because it was reading the raw map representation, not
216     passing it through the right conversion steps that are needed now.
218 kaz 1.138 Bugfix to purge and remap commands: they were fooled by CVS-generated
219     files in the MCVS/CVS directory. Specifically, files having F- names, and a
220     the suffix ,t.
222 kaz 1.141 Bugfix to add logic in directory restructuring: there was the possibility
223     of mistakingly taking a clobbered local file to be a new local version of
224     the added file, instead of replacing it. This could happen if the local
225     file had a future timestamp relative to the one coming from the repository.
227 kaz 1.143 The prop command does not synchronize or write out map if no options are
228     specified.
230 kaz 1.144 Help text added for move and branch commands. Help text for grab rewritten.
231 kaz 1.137
232 kaz 1.145 The CVSEDITOR and VISUAL environment variables are now checked, not
233     only EDITOR.
235 kaz 1.134 Release 0.98, 2002-10-13:
236 kaz 1.128
237 kaz 1.133 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
238     which could cause information loss if the two differ. It now reads from MAP
239     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
240     update operation invoked by prop, as before).
242     Invocation of external programs included in debug trace.
243 kaz 1.128
244     The filt command does not filter F- names if they are immediately preceded by
245     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
246     references to the actual F- links, rather than abstract references.
248 kaz 1.129 The update command now supports the -C option, to fetch the repository
249     copy, throwing away local changes. It also now honors the --metaonly
250     and --nometa options.
251 kaz 1.130
252     The export command has been added, for checking out documents without creating
253     a working copy (no MCVS directory in the root of the checkout).
254 kaz 1.131
255 kaz 1.133 The watch command has been added. Note that its syntax differs from that
256     of CVS.
257 kaz 1.132
258     The watchers, editors, edit, and unedit commands have been added.
259 kaz 1.134
260     A script called mcvs-upgrade is now included, and installs alongside the mcvs
261     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
262     giving users of binary distributions an easy way to upgrade from source
263     code.
265 kaz 1.127 Release 0.97, 2002-10-06:
266 kaz 1.119
267     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
268     (www.cygwin.com). It still relies on hard links, which requires
269     Windows 2000 or XP, and the NTFS filesystem. It probably won't
270     work over FAT.
271 kaz 1.120
272     New --debug option for verbose output.
274     Cleaned up of error messages. Error messages don't specify prefixes like
275     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
276     ``mcvs:'' prefix when printing the messages in a situation when the error is
277     not continuable.
278 kaz 1.119
279 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
280     directories, effectively ignoring arguments that are regular files.
281 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
282 kaz 1.121
283 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
284     directory are no longer silent no-ops, but produce an error.
285 kaz 1.123
286 kaz 1.124 The remap command now preserves property lists, and picks up changes
287     in executable permission.
289     The grab command now notices when a file changes from having execute
290     permission to not having execute permission.
292 kaz 1.126 Operations on the path . now work in a partial sandbox.
294 kaz 1.118 Release 0.96, 2002-09-21:
295 kaz 1.110
296     The restore command was left broken during the change to the new
297     filemap format. It is now fixed.
299 kaz 1.111 The grab command now handles execute permission bits properly.
301 kaz 1.112 Some more commands have detailed help.
303 kaz 1.113 There is now a global option -i which specifies a script to be
304 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
305     instance suppose you have the following script and call it
306     list-matching:
307 kaz 1.113
308     #!/usr/local/bin/mcvs -i
309     (in-sandbox-root-dir
310 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
311 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
312 kaz 1.114 (dolist (entry mapping)
313     (with-slots (path raw-plist) entry
314 kaz 1.117 (when (funcall test-func raw-plist)
315 kaz 1.114 (format t "~a~%" path))))))
317     Then to list the names of files whose "importance" property is
318     a value greater than two, run:
320     ./list-matching '(lambda (plist)
321     (let ((imp (getf plist :importance)))
322     (and imp (> imp 2))))'
323 kaz 1.117
324     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
325     break as Meta-CVS is maintained. There is currently no published set of
326     stable interfaces.
327 kaz 1.113
328 kaz 1.109 Release 0.95, 2002-09-16:
329 kaz 1.104
330 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
331     or the linkkit directory; these have been removed. These materials
332     are available at every CLISP installation; install.sh now finds them
333     and uses them. Users of non-x86 machines ran into problems because of this
334     because linkkit/clisp.h contains architecture-dependent information.
335 kaz 1.104
336 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
337     in the map.
339 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
340     help'' command acts just like ``mcvs --help'' without any arguments. If given
341     an additional parameter which specifies a Meta-CVS command, it produces more
342     detailed documentation for that comand. Help exists already for a few
343     commands.
345 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
346     in beta. It is only five updates away from a 1.0 release.
347 kaz 1.106
348 kaz 1.103 Release 0.24, 2002-09-08:
349 kaz 1.98
350 kaz 1.99 The mapping entries for both symlinks and files have extensible property
351     lists now. These are stored in the optional fourth and fifth list elements,
352     respectively of the :FILE and :SYMLINK map entries.
354     Versioning of the execute permission of files is supported, represented as
355     the :EXEC property of a :FILE mapping entry.
356 kaz 1.98
357 kaz 1.100 Some lame syntax is provided for manipulating properties:
359 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
360 kaz 1.100
361     will set the property FOO to true, set the property BAR to false,
362     and remove the property BAZ, in the files main.c and list.c.
363     The execute permission is represented by the property EXEC.
365 kaz 1.97 Release 0.23, 2002-09-02:
366 kaz 1.95
367 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
368     changes into the mapping.
370     The grab command now figures out moved symlinks. Moved symlinks are those
371     whose pathname has changed, but which continue to point to the same object
372     (which may also have been moved).
373 kaz 1.95
374 kaz 1.94 Release 0.22, 2002-08-31:
375 kaz 1.93
376     Symbolic links are now versioned objects. The format of the MAP file
377     changes to accomodate this; the new Meta-CVS will read old MAP
378     files; when it writes it will write the new format. Old Meta-CVS won't
379     read the new format.
381     When a new module is created from an existing file tree, symbolic
382     links will be recognized and added. The add command will also add
383     symbolic links. Symbolic links can be renamed and moved; this does
384     nothing with their contents. They can point outside of the sandbox
385     using relative or absolute paths.
387 kaz 1.94 TODO:
389 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
390     retarget them; retargetting a link can be done manually by editing MCVS/MAP
391     and updating. Retargetting a link using the ln -s command, won't
392 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
394     The grab command does not yet compute symbolic link moves; a moved symbolic
395     link is treated as a remove and add. This will be easy to fix.
397     The remap command ignores symlinks.
398 kaz 1.93
399 kaz 1.92 Release 0.21, 2002-08-04:
400 kaz 1.88
401 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
402     argument, but using the -r command option. If no revision is specified with
403     -r, then a -A must be specified to make the grab go to the main trunk. This
404     is a safety feature, since grabbing foreign snapshots to the trunk is almost
405     always wrong, though it could be useful during backup recovery, or for fixing
406     mistakes.
408 kaz 1.91 The way operating system functions are targetted has changed. Instead of
409     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
410     has its own module for calling foreign functions. This module is portable;
411     it does not depend on the layout of glibc data structures. So Meta-CVS
412     is in theory now portable to other Unixes (provided they have /dev/urandom).
414 kaz 1.87 Release 0.20, 2002-07-27:
415 kaz 1.86
416     The commit command does a true global commit when given no file or directory
417     parameters, and not given the --metaonly option. This means commiting all
418     changes in the MCVS directory, even if they are in F-files that are not
419     currently mapped.
421 kaz 1.85 Release 0.19, 2002-07-16:
422 kaz 1.81
423     When moving multiple files or directories to a subdirectory, a
424     restart is now provided to skip over bad ones and continue.
426 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
427     files. There are no moves to deduce in that case.
429 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
430     rather than at the abstract root of the module.
432 kaz 1.83 Some other algorithmic improvements made.
433 kaz 1.82
434     The first few sections of a user guide have been written.
436 kaz 1.80 Release 0.18, 2002-07-07:
437 kaz 1.77
438 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
439     subdirectory of the project. Specifying a subdirectory results in a ``partial
440     sandbox'', whose root directory is the specified subdirectory of the larger
441     project. The rest of the project is ``invisible'' to that sandbox. A
442     subdirectory argument can also be given to mcvs grab, which will cause it to
443     integrate the new source tree against a subtree of the Meta-CVS project
444 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
445     that case you get an empty sandbox. Adding files to this sandbox will cause
446     the tree to exist in the project.
447 kaz 1.78
448 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
449     wrongly treating them as removes and adds.
451 kaz 1.76 Release 0.17, 2002-07-02:
452 kaz 1.71
453     The create command no longer takes a vendor branch. Instead the symbol
454     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
456 kaz 1.72 The grab command no longer does useless synchronization on files that
457     are about to be deleted.
459 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
460     that have no mapping.
462     New restore command; re-enters deleted files into the mapping, under
463     the ``lost+found'' directory, using their F- names as sandbox names.
464 kaz 1.73
465 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
466     working copy, it must not delete that working copy's MCVS sub directory.
468 kaz 1.70 Release 0.16, 2002-06-29:
469 kaz 1.67
470     Added new heuristics to grab command. Paths are analyzed to determine
471     move distance. Greater distances reduce the confidence in a move.
472     These rules help sort out grabs in a project where similar or
473     duplicate files are subject to parallel moves, the ambiguity being
474 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
475     now. Common words (those that appear in many files) are ignored when
476     comparing files.
477 kaz 1.67
478 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
479     up a little bit. Most reporting commands like log or diff no longer
480     operate on meta files by default; they must be explicitly told to do
481     so with --meta or --metaonly. Only the commit command implicitly includes
482     metafiles by default, and so if this is not wanted, --nometa must be
483     selected. The update command remains special; if it is given file
484     arguments, it does not include meta files. If given no arguments, it
485     does a global CVS up across the entire project.
487 kaz 1.66 Release 0.15, 2002-06-25:
488 kaz 1.61
489 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
490     paths; the result is a noticeable performance improvement in some commands
491     that process large numbers of files.
492 kaz 1.61
493 kaz 1.62 Renamed ``import'' command to ``create''.
495 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
496     broken :postorder support in directory walking function.
497 kaz 1.63
498 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
499     the checkout was directed to an existing directory.
501 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
502 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
503     It determines what files have been added and removed in the snapshot, and
504     tries to compute which removes and adds are actually moves. This is done by
505     analyzing the actual contents of the files according to a crude algorithm to
506     do fuzzy comparisons, so that even files which were modified as well as moved
507     are discovered.
508 kaz 1.64
509 kaz 1.60 Release 0.14, 2002-06-21:
510 kaz 1.59
511     Bugfix: mcvs add was broken for files that have no suffix, causing
512 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
513     handling was added.
514 kaz 1.59
515 kaz 1.58 Release 0.13, 2002-06-06:
516 kaz 1.55
517     Sandbox synchronization now handles the case of two files having
518     the same timestamp. An error is signaled, with interactive resolution
519     to synchronize either way, or do nothing.
521 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
522     is now a continuable error.
524     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
525     whose suffix is one of the ones cvs ignores by default.
527 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
528     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
529     moves and deletions, and reconstruct the mapping accordingly; that is,
530     it remaps the new structure. This command uses inode numbers to identify
531     files; if a file is copied and then the original is deleted, that won't
532     be recognized as a move.
534 kaz 1.53 Release 0.12, 2002-04-18:
535 kaz 1.51
536     Bugfix: remove was broken in 0.10, fixed now.
538 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
539     ``. not known to Meta-CVS''.
541 kaz 1.52 The checkout operation now can now populate an existing directory, including
542     the current working directory (mcvs co -d . modulename). Of course, the
543     target directory cannot be an existing Meta-CVS sandbox.
544     This is a useful feature, which allows sandboxes to blend with an
545     existing directory structure.
547     Checkout now uses the same function for generating the sandbox
548     structure as does update. This is now necessary, because local files
549     can be clobbered by the checkout.
551 kaz 1.50 Release 0.11, 2002-04-12:
552 kaz 1.46
553     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
554     from CVS/Root and passes it via -d. This is necessary because rtag does not
555     look at a local CVS subdirectory for this information, only the
556     -d option or the environment variable.
558 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
559     what sticky tag the sandbox is updated to.
561     Command for switching branches added (switch or sw).
563     Merge detects that working copy is on non-branch tag and bails.
564 kaz 1.47
565 kaz 1.49 Absolute paths can now be specified as file arguments. These are
566     based from the root directory of the sandbox, not the actual filesystem root
567     directory.
569 kaz 1.45 Release 0.10, 2002-04-03:
570 kaz 1.44
571     Automatic merging implemented. Branch is created using branch command,
572     and merging from another branch is done using simple merge command.
573     Meta-CVS maintains the tags to keep track of what has been merged
574     from what branch to what branch.
575 kaz 1.40
576     Bugfix: checkout -d foo bar was complaining about directory bar already
577     existing, even though it should only care about foo.
579 kaz 1.41 The remove command now requires explicit -R option to recursively remove
580 kaz 1.42 a directory. It has more detailed error reporting.
581 kaz 1.41
582 kaz 1.43 The move command has better error reporting.
584 kaz 1.39 Release 0.9, 2002-03-14:
585 kaz 1.37
586     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
587     (unless --nometa is specified, of course).
588 kaz 1.38
589     The mcvs filt command takes -r <revision> or -D <date> parameters.
590     This means to retrieve the MAP file as of the specified revision or
591     date and use that mapping to perform the filtering translation,
592     rather than using MAP-LOCAL.
593 kaz 1.39
594     The mcvs update command takes filename arguments now and also
595     supports the -p option.
596 kaz 1.37
597 kaz 1.36 Release 0.8, 2002-03-13:
598 kaz 1.28
599 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
600     listed as :ignore in MCVS/TYPES.
602 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
603     as a directory (if it does not already exist and is a non-directory).
605 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
606     directory, which is normally the same as the module name.
608 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
610 kaz 1.33 New global options --error-continue and --error-terminate to disable
611     interactive error handling in two different ways.
613 kaz 1.32 Log level of many messages has changed; many messages have been
614     relegated to debug level.
616 kaz 1.35 The import command now creates a .cvsignore file containing the name
617     MAP-LOCAL.
619 kaz 1.24 Release 0.7, 2002-03-09:
621 kaz 1.27 The import command collects a list of the file suffixes and brings up
622     a text editor to allow the user to edit their CVS keyword expansion
623     behavior. This information is kept in a new metafile called TYPES. The
624     add command also updates TYPES; it identifies any suffixes which are new,
625     and brings up an editor. The F- files now carry suffixes, which
626     simplifies interfacing with CVS, and also allows cvswrappers to work.
628     Recursive add works (mcvs add -R ...).
630     New command line option --nometa allows metafiles to be excluded from
631     diff, tag, and other commands; without the option they are inserted
632     into the list of files to be processed.
633 kaz 1.25
634 kaz 1.27 The commit option now takes an optional list of files or directories,
635     just like tag, diff, and others.
636 kaz 1.26
637 kaz 1.23 Release 0.6, 2002-02-16:
638 kaz 1.19
639 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
640 kaz 1.21
641 kaz 1.27 User can interactively select whether to clobber local files or leave
642     everything alone. Effects on the mapping file of a mcvs move are undone,
643     if the restructuring is rolled back, or raises a condition that leads
644     to termination.
646     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
647     during import, and specifies the CVS keyword expansion mode for files
648     having given suffixes, and can also tell Meta-CVS to ignore certain files
649     when importing or adding.
650 kaz 1.22
651 kaz 1.18 Release 0.5, 2002-02-10:
652 kaz 1.14
653 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
654     sanity checks to prevent adds and moves from accidentally clobbering
655     local files. A rearranging gone bad can be rolled back. Effects
656     of a failed mcvs add can also be rolled back.
657 kaz 1.14
658 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
659 kaz 1.15
660 kaz 1.13 Release 0.4, 2002-02-04:
661 kaz 1.10
662 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
663     which ensures that multiple command lines are generated if necessary to
664     avoid surpassing the operating system limit on argument and environment
665     vector size. This is important when someone wants to diff or stat a
666     subdirectory, which requires Meta-CVS to pick out the individual files
667     at the CVS level.
669     The tag, log, status and annotate commands are now available.
671     The MAP file is sorted on F- file names now, not path names. This
672     improves merging, since files do not move within the file when
673     they are renamed.
674 kaz 1.12
675 kaz 1.5 Release 0.3, 2002-02-02:
677 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
678     exit. The program properly indicates failed termination when it exits
679     due to an error condition.
681     Corrections are made in the command line option processing. If z is an
682     option that takes an argument, and the argument is -zx, then x is
683     treated as the argument to the option. Long options arguments are
684     recognized properly, according to the --opt=arg convention. The option
685     processing is restructured. Most of the commands now take the
686     appropriate cvs command-specific options.
688     The update algorithm performs dupe checking over the map, which could
689     happen during a merge.
691     Some more bugfixing has been done to the move command. It was still not
692     handling right some cases of an unversioned file being clobbered. Also,
693     it wasn't renaming a directory containing just one file.
695     I did some performance investigation for larger file sets, and
696     ended up rewriting the code that computes filesystem restructuring
697     changes and map duplicates.
698 kaz 1.5
699 kaz 1.4 Release 0.2, 2002-01-30:
701 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
702     performs some filesystem tests so it does the right thing when a versioned
703     file is moved over a non-versioned file, or when a file is moved into
704     a directory not known to Meta-CVS. Factored out reading and writing of
705     map files into functions.
706 kaz 1.4
707 kaz 1.2 Release 0.1, 2002-01-28:
709 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
710     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
711     mv command when copying a directory to an existing directory.
712 kaz 1.2
713     Release 0.0, 2002-01-27:
714 kaz 1.1
715 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
716     However, it is already usable in its present state and is being used for
717     version control by its author. If you can program in Common Lisp and would
718     like to help, take a look through the TODO file. Send me patches, ideas,
719     feature requests.

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