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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision 1.187 - (hide annotations)
Tue Feb 3 12:30:04 2004 UTC (10 years, 2 months ago) by kaz
Branch: MAIN
Changes since 1.186: +4 -0 lines
Merging from mcvs-1-0-branch.
1 kaz 1.162 Release for Meta-CVS
2 kaz 1.1
3 kaz 1.142 Release ?.??, 200?-??-??:
5 kaz 1.162 All Lisp symbols are in a package.
6 kaz 1.142
7 kaz 1.187 Release 1.0.13, 2004-02-??:
9     The ``mcvs convert'' command now creates the TYPES and .cvsignore files.
11 kaz 1.186 Release 1.0.12, 2004-01-31:
12 kaz 1.184
13 kaz 1.185 Fixes various bugs in ``mcvs convert'', so that it is
14 kaz 1.184 actually useable now, albeit still far from a perfect CVS
15     migration tool.
16 kaz 1.185
17     The remap command can now purge the MAP of entries that refer to non-existent
18     F- files, which is useful for cleaning up after the convert algorithm,
19     if necessary.
20 kaz 1.184
21     Release 1.0.11, 2004-01-28:
22 kaz 1.182
23 kaz 1.183 Fixes breakage of list-branches command introduced in last release.
25     Fixes failures in grab command when pulling new baseline over
26     partial sandbox. Renamed symlinks, and execute permissions of files
27     were being accessed using abstract instead of real path.
28 kaz 1.182
29 kaz 1.181 Release 1.0.10, 2004-01-09:
31     Builds on CLISP 2.32. The lb command no longer produces bogus warning
32     when working copy is sticky to a version tag.
34 kaz 1.180 Release 1.0.9, 2003-11-24:
35 kaz 1.178
36     Failures to open terminal for reasons other than non-existence
37     of the object are handled (e.g. ``no such device'', etc).
39 kaz 1.179 The --nometa option now works properly in those commands that
40     operate on the whole project when no file arguments are given
41     (tag, update, commit). Also, these commands no longer implicitly
42     include the meta files when file arguments *are* given.
43     These files can be included explicitly with the --meta global option.
45 kaz 1.177 Release 1.0.8, 2003-06-03:
46 kaz 1.174
47 kaz 1.175 The Cygwin /dev/tty problem is partially addressed. The program
48     won't fail if /dev does not exist, but emits a warning message,
49     and disables interactive error handling. The workaround is to use
50     ``mkdir /dev''. This is a CLISP issue; its OPEN function expects the
51     full path to a file to actually exist, but on Cygwin, there are fake
52     /dev/* paths even though /dev does not exist. If a real /dev directory
53     does in fact exist, it does not interfere with these magic paths.
54 kaz 1.174
55 kaz 1.176 The ``mcvs fi'' command no longer performs expansion on F- names
56     that are preceded by a slash.
58 kaz 1.174 Release 1.0.7, 2003-04-23:
59 kaz 1.170
60 kaz 1.173 New commands sync-to-cvs and sync-from-cvs expose the hard link
61     synchronization algorithm.
63 kaz 1.170 Revamped error recovery logic. To continue in an error situation now
64     consistently means ``take the bold action that may erase data''
65     or ``proceed in the most obvious way to finish the specified job''.
66 kaz 1.172 It never means ``roll back the operation and bail'', which was
67     confusing.
68 kaz 1.170
69 kaz 1.172 Termination is no longer unsafe; the `T' menu command, and the
70     equivalent --error-terminate global option perform all necessary
71     restoration and cleanup.
73     Errors that have more information to print, like a list of files or
74     whatever, now indicate it in a standard way which translates to the
75     `I' menu command.
76 kaz 1.171
77     Chatter output goes to standard error rather than standard output,
78     as do all error messages.
80     The interactive error menu now talks to the user using the controlling
81     tty, meaning that it will work even if the input or output of the
82 kaz 1.172 mcvs command are redirected. If no controlling tty is available,
83     then interactive error handling is disabled; the default behavior
84     is then like --error-terminate but can of course be overridden by
85     --error-continue.
86 kaz 1.171
87 kaz 1.169 Release 1.0.6, 2003-04-14:
88 kaz 1.166
89     The create command detects the existence of text editor backup files (or
90     other junk) in the MCVS directory after the editor is invoked on the
91     TYPES file. The user is prompted regarding their removal. If these files are
92     not removed, cvs import will bring them into the repository.
94 kaz 1.167 When Meta-CVS has to split a large CVS command into two or more
95     invocations with shorter argument lists, it now does not stop when one of
96     these invocations is unsuccessful; it does all of them, and combines
97     their termination indications by a logical AND. There was a bug in this
98     logic also which caused, upon termination failure, a cvs command to be
99     repeated for the same list of files.
101     Synchronization logic has been revamped. Unnecessary synchronizations
102     have been removed, which will make some commands run faster.
103     Synchronizations now have specific directions; for instance before
104     a CVS commit or update, changes are pushed from the directory tree to the MCVS
105     directory only, and after the CVS operation, in the reverse direction only.
107     Meta-CVS will no longer re-create missing F- files by linking from the
108     directory tree. Doing this causes two problems. One is that if a user
109     manually removes a F- file and do ``mcvs up'', she wants CVS to fetch a clean
110     copy and push it into the tree. She does not want the file to be restored
111     from the tree prior to the CVS update. Secondly, sometimes CVS itself
112     removes files. If we re-create the files, CVS will consider them to
113     be ``in the way''.
115     Failures to read from the MAP or MAP-LOCAL files are treated as interactive,
116     continuable errors. By continuing, the user agrees that the behavior will
117     be as if an empty map were read.
119 kaz 1.168 The grab command uses less memory for performing move analysis.
121 kaz 1.165 Release 1.0.5, 2003-02-25:
122 kaz 1.163
123     Bugfix: some one-argument command line options of CVS must be
124     specifies as a single parameter, with no separation between the
125     option letter and the argument characters. For example:
127     cvs log -r rev-1::rev-2 # invalid
128     cvs log -rrev1::rev2 # correct
130     Meta-CVS accepts either syntax, but it was generating the first form
131     when calling CVS. Now, *all* one-letter options that have an argument
132     are formatted in the second manner.
134 kaz 1.164 Bugfix: one more waitpid() issue was fixed; on fast machines, under
135     Linux, it was observed that from time to time Meta-CVS would get
136     a -1/ECHILD when waiting for the CVS process.
138 kaz 1.162 Release 1.0.4, 2003-02-20:
140     Fix remaining occurences of the CVS ``No child processes'' abort
141     problem, affecting the list-branches command, merge command
142     and the -r option of the filt command.
144     Release 1.0.3, 2003-02-12:
146     ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
147     ! experimental main trunk of the Meta-CVS codebase, rather than
148     ! the 1.0 branch. But 1.0.4 does contain all of the changes
149     ! described here.
150 kaz 1.160
151     Fix for the CVS ``No child processes'' abort problem. It turns out
152     that CLISP sets the signal handling action for the SIGCHLD signal
153     to SIG_IGN, which is inherited by child processes across the
154     fork() and execvp() calls used in our mcvs_spawn() function.
155     We correct the problem by resetting the signal handler to SIG_DFL
156     just before executing the new process image.
157 kaz 1.161
158     New feature, --up option. The argument is a nonnegative integer value
159     (default is zero) which specifies how many sandbox nesting levels to
160     escape out of when locating the sandbox root. This helps work with
161     nested Meta-CVS sandboxes.
162 kaz 1.160
163 kaz 1.162 Release 1.0.2, 2003-02-10:
164 kaz 1.157
165     Bugfix in waitpid logic in the C library for running external processes;
166     we were not dealing with an interrupted waitpid.
168 kaz 1.158 Behavior of mcvs tag is changed: when there are no filename arguments,
169     the whole tree is tagged including the metafiles. In other words, it
170     now works like the commit command.
172 kaz 1.157 Release 1.0.1, 2003-01-30:
173 kaz 1.154
174     Hard link sync optimization: update of a subset of files, commit, and
175     other operations like log and diff don't need to synchronize all
176     hard links, just the ones operated on.
178 kaz 1.155 The merge and remerge commands support -k option for overriding
179     CVS keyword expansion mode.
181 kaz 1.156 Fixes to getcwd error handling.
182 kaz 1.157
183     Improvement in install.sh script's logic for locating CLISP installation
184     directory.
185 kaz 1.156
186 kaz 1.153 Release 1.0, 2003-01-01:
187 kaz 1.147
188 kaz 1.151 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
189     because it adds some new C functions to the Lisp executable.
191 kaz 1.147 Security fix: read-time evaluation was not suppressed when reading
192     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
193     was possible for Alice to check in something that would execute
194     arbitrary code on Bob's computer.
196 kaz 1.148 Optimization: use fork and exec to launch CVS rather than CLISP's
197     run-program function, which indirects through the shell interpreter.
198 kaz 1.153 (On Cygwin, the spawnvp function is used).
199 kaz 1.148
200 kaz 1.149 Performance fix: stat() was being called superfluously by the
201     hard synchronization code, twice for each file.
203 kaz 1.150 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
204     which is the case under Cygwin with newer CLISP releases.
206 kaz 1.146 Release 0.99, 2002-11-17:
207 kaz 1.135
208 kaz 1.140 New link command for creating symbolic links.
210 kaz 1.144 Global option -n (dry run---don't modify filesystem) is processed
211     internally now, not just passed to CVS.
213 kaz 1.135 Failure to invoke text editor is handled.
215 kaz 1.136 The -r option of filt is fixed; it has been broken since the change to the
216     new MAP format, because it was reading the raw map representation, not
217     passing it through the right conversion steps that are needed now.
219 kaz 1.138 Bugfix to purge and remap commands: they were fooled by CVS-generated
220     files in the MCVS/CVS directory. Specifically, files having F- names, and a
221     the suffix ,t.
223 kaz 1.141 Bugfix to add logic in directory restructuring: there was the possibility
224     of mistakingly taking a clobbered local file to be a new local version of
225     the added file, instead of replacing it. This could happen if the local
226     file had a future timestamp relative to the one coming from the repository.
228 kaz 1.143 The prop command does not synchronize or write out map if no options are
229     specified.
231 kaz 1.144 Help text added for move and branch commands. Help text for grab rewritten.
232 kaz 1.137
233 kaz 1.145 The CVSEDITOR and VISUAL environment variables are now checked, not
234     only EDITOR.
236 kaz 1.134 Release 0.98, 2002-10-13:
237 kaz 1.128
238 kaz 1.133 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
239     which could cause information loss if the two differ. It now reads from MAP
240     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
241     update operation invoked by prop, as before).
243     Invocation of external programs included in debug trace.
244 kaz 1.128
245     The filt command does not filter F- names if they are immediately preceded by
246     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
247     references to the actual F- links, rather than abstract references.
249 kaz 1.129 The update command now supports the -C option, to fetch the repository
250     copy, throwing away local changes. It also now honors the --metaonly
251     and --nometa options.
252 kaz 1.130
253     The export command has been added, for checking out documents without creating
254     a working copy (no MCVS directory in the root of the checkout).
255 kaz 1.131
256 kaz 1.133 The watch command has been added. Note that its syntax differs from that
257     of CVS.
258 kaz 1.132
259     The watchers, editors, edit, and unedit commands have been added.
260 kaz 1.134
261     A script called mcvs-upgrade is now included, and installs alongside the mcvs
262     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
263     giving users of binary distributions an easy way to upgrade from source
264     code.
266 kaz 1.127 Release 0.97, 2002-10-06:
267 kaz 1.119
268     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
269     (www.cygwin.com). It still relies on hard links, which requires
270     Windows 2000 or XP, and the NTFS filesystem. It probably won't
271     work over FAT.
272 kaz 1.120
273     New --debug option for verbose output.
275     Cleaned up of error messages. Error messages don't specify prefixes like
276     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
277     ``mcvs:'' prefix when printing the messages in a situation when the error is
278     not continuable.
279 kaz 1.119
280 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
281     directories, effectively ignoring arguments that are regular files.
282 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
283 kaz 1.121
284 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
285     directory are no longer silent no-ops, but produce an error.
286 kaz 1.123
287 kaz 1.124 The remap command now preserves property lists, and picks up changes
288     in executable permission.
290     The grab command now notices when a file changes from having execute
291     permission to not having execute permission.
293 kaz 1.126 Operations on the path . now work in a partial sandbox.
295 kaz 1.118 Release 0.96, 2002-09-21:
296 kaz 1.110
297     The restore command was left broken during the change to the new
298     filemap format. It is now fixed.
300 kaz 1.111 The grab command now handles execute permission bits properly.
302 kaz 1.112 Some more commands have detailed help.
304 kaz 1.113 There is now a global option -i which specifies a script to be
305 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
306     instance suppose you have the following script and call it
307     list-matching:
308 kaz 1.113
309     #!/usr/local/bin/mcvs -i
310     (in-sandbox-root-dir
311 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
312 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
313 kaz 1.114 (dolist (entry mapping)
314     (with-slots (path raw-plist) entry
315 kaz 1.117 (when (funcall test-func raw-plist)
316 kaz 1.114 (format t "~a~%" path))))))
318     Then to list the names of files whose "importance" property is
319     a value greater than two, run:
321     ./list-matching '(lambda (plist)
322     (let ((imp (getf plist :importance)))
323     (and imp (> imp 2))))'
324 kaz 1.117
325     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
326     break as Meta-CVS is maintained. There is currently no published set of
327     stable interfaces.
328 kaz 1.113
329 kaz 1.109 Release 0.95, 2002-09-16:
330 kaz 1.104
331 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
332     or the linkkit directory; these have been removed. These materials
333     are available at every CLISP installation; install.sh now finds them
334     and uses them. Users of non-x86 machines ran into problems because of this
335     because linkkit/clisp.h contains architecture-dependent information.
336 kaz 1.104
337 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
338     in the map.
340 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
341     help'' command acts just like ``mcvs --help'' without any arguments. If given
342     an additional parameter which specifies a Meta-CVS command, it produces more
343     detailed documentation for that comand. Help exists already for a few
344     commands.
346 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
347     in beta. It is only five updates away from a 1.0 release.
348 kaz 1.106
349 kaz 1.103 Release 0.24, 2002-09-08:
350 kaz 1.98
351 kaz 1.99 The mapping entries for both symlinks and files have extensible property
352     lists now. These are stored in the optional fourth and fifth list elements,
353     respectively of the :FILE and :SYMLINK map entries.
355     Versioning of the execute permission of files is supported, represented as
356     the :EXEC property of a :FILE mapping entry.
357 kaz 1.98
358 kaz 1.100 Some lame syntax is provided for manipulating properties:
360 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
361 kaz 1.100
362     will set the property FOO to true, set the property BAR to false,
363     and remove the property BAZ, in the files main.c and list.c.
364     The execute permission is represented by the property EXEC.
366 kaz 1.97 Release 0.23, 2002-09-02:
367 kaz 1.95
368 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
369     changes into the mapping.
371     The grab command now figures out moved symlinks. Moved symlinks are those
372     whose pathname has changed, but which continue to point to the same object
373     (which may also have been moved).
374 kaz 1.95
375 kaz 1.94 Release 0.22, 2002-08-31:
376 kaz 1.93
377     Symbolic links are now versioned objects. The format of the MAP file
378     changes to accomodate this; the new Meta-CVS will read old MAP
379     files; when it writes it will write the new format. Old Meta-CVS won't
380     read the new format.
382     When a new module is created from an existing file tree, symbolic
383     links will be recognized and added. The add command will also add
384     symbolic links. Symbolic links can be renamed and moved; this does
385     nothing with their contents. They can point outside of the sandbox
386     using relative or absolute paths.
388 kaz 1.94 TODO:
390 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
391     retarget them; retargetting a link can be done manually by editing MCVS/MAP
392     and updating. Retargetting a link using the ln -s command, won't
393 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
395     The grab command does not yet compute symbolic link moves; a moved symbolic
396     link is treated as a remove and add. This will be easy to fix.
398     The remap command ignores symlinks.
399 kaz 1.93
400 kaz 1.92 Release 0.21, 2002-08-04:
401 kaz 1.88
402 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
403     argument, but using the -r command option. If no revision is specified with
404     -r, then a -A must be specified to make the grab go to the main trunk. This
405     is a safety feature, since grabbing foreign snapshots to the trunk is almost
406     always wrong, though it could be useful during backup recovery, or for fixing
407     mistakes.
409 kaz 1.91 The way operating system functions are targetted has changed. Instead of
410     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
411     has its own module for calling foreign functions. This module is portable;
412     it does not depend on the layout of glibc data structures. So Meta-CVS
413     is in theory now portable to other Unixes (provided they have /dev/urandom).
415 kaz 1.87 Release 0.20, 2002-07-27:
416 kaz 1.86
417     The commit command does a true global commit when given no file or directory
418     parameters, and not given the --metaonly option. This means commiting all
419     changes in the MCVS directory, even if they are in F-files that are not
420     currently mapped.
422 kaz 1.85 Release 0.19, 2002-07-16:
423 kaz 1.81
424     When moving multiple files or directories to a subdirectory, a
425     restart is now provided to skip over bad ones and continue.
427 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
428     files. There are no moves to deduce in that case.
430 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
431     rather than at the abstract root of the module.
433 kaz 1.83 Some other algorithmic improvements made.
434 kaz 1.82
435     The first few sections of a user guide have been written.
437 kaz 1.80 Release 0.18, 2002-07-07:
438 kaz 1.77
439 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
440     subdirectory of the project. Specifying a subdirectory results in a ``partial
441     sandbox'', whose root directory is the specified subdirectory of the larger
442     project. The rest of the project is ``invisible'' to that sandbox. A
443     subdirectory argument can also be given to mcvs grab, which will cause it to
444     integrate the new source tree against a subtree of the Meta-CVS project
445 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
446     that case you get an empty sandbox. Adding files to this sandbox will cause
447     the tree to exist in the project.
448 kaz 1.78
449 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
450     wrongly treating them as removes and adds.
452 kaz 1.76 Release 0.17, 2002-07-02:
453 kaz 1.71
454     The create command no longer takes a vendor branch. Instead the symbol
455     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
457 kaz 1.72 The grab command no longer does useless synchronization on files that
458     are about to be deleted.
460 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
461     that have no mapping.
463     New restore command; re-enters deleted files into the mapping, under
464     the ``lost+found'' directory, using their F- names as sandbox names.
465 kaz 1.73
466 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
467     working copy, it must not delete that working copy's MCVS sub directory.
469 kaz 1.70 Release 0.16, 2002-06-29:
470 kaz 1.67
471     Added new heuristics to grab command. Paths are analyzed to determine
472     move distance. Greater distances reduce the confidence in a move.
473     These rules help sort out grabs in a project where similar or
474     duplicate files are subject to parallel moves, the ambiguity being
475 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
476     now. Common words (those that appear in many files) are ignored when
477     comparing files.
478 kaz 1.67
479 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
480     up a little bit. Most reporting commands like log or diff no longer
481     operate on meta files by default; they must be explicitly told to do
482     so with --meta or --metaonly. Only the commit command implicitly includes
483     metafiles by default, and so if this is not wanted, --nometa must be
484     selected. The update command remains special; if it is given file
485     arguments, it does not include meta files. If given no arguments, it
486     does a global CVS up across the entire project.
488 kaz 1.66 Release 0.15, 2002-06-25:
489 kaz 1.61
490 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
491     paths; the result is a noticeable performance improvement in some commands
492     that process large numbers of files.
493 kaz 1.61
494 kaz 1.62 Renamed ``import'' command to ``create''.
496 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
497     broken :postorder support in directory walking function.
498 kaz 1.63
499 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
500     the checkout was directed to an existing directory.
502 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
503 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
504     It determines what files have been added and removed in the snapshot, and
505     tries to compute which removes and adds are actually moves. This is done by
506     analyzing the actual contents of the files according to a crude algorithm to
507     do fuzzy comparisons, so that even files which were modified as well as moved
508     are discovered.
509 kaz 1.64
510 kaz 1.60 Release 0.14, 2002-06-21:
511 kaz 1.59
512     Bugfix: mcvs add was broken for files that have no suffix, causing
513 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
514     handling was added.
515 kaz 1.59
516 kaz 1.58 Release 0.13, 2002-06-06:
517 kaz 1.55
518     Sandbox synchronization now handles the case of two files having
519     the same timestamp. An error is signaled, with interactive resolution
520     to synchronize either way, or do nothing.
522 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
523     is now a continuable error.
525     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
526     whose suffix is one of the ones cvs ignores by default.
528 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
529     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
530     moves and deletions, and reconstruct the mapping accordingly; that is,
531     it remaps the new structure. This command uses inode numbers to identify
532     files; if a file is copied and then the original is deleted, that won't
533     be recognized as a move.
535 kaz 1.53 Release 0.12, 2002-04-18:
536 kaz 1.51
537     Bugfix: remove was broken in 0.10, fixed now.
539 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
540     ``. not known to Meta-CVS''.
542 kaz 1.52 The checkout operation now can now populate an existing directory, including
543     the current working directory (mcvs co -d . modulename). Of course, the
544     target directory cannot be an existing Meta-CVS sandbox.
545     This is a useful feature, which allows sandboxes to blend with an
546     existing directory structure.
548     Checkout now uses the same function for generating the sandbox
549     structure as does update. This is now necessary, because local files
550     can be clobbered by the checkout.
552 kaz 1.50 Release 0.11, 2002-04-12:
553 kaz 1.46
554     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
555     from CVS/Root and passes it via -d. This is necessary because rtag does not
556     look at a local CVS subdirectory for this information, only the
557     -d option or the environment variable.
559 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
560     what sticky tag the sandbox is updated to.
562     Command for switching branches added (switch or sw).
564     Merge detects that working copy is on non-branch tag and bails.
565 kaz 1.47
566 kaz 1.49 Absolute paths can now be specified as file arguments. These are
567     based from the root directory of the sandbox, not the actual filesystem root
568     directory.
570 kaz 1.45 Release 0.10, 2002-04-03:
571 kaz 1.44
572     Automatic merging implemented. Branch is created using branch command,
573     and merging from another branch is done using simple merge command.
574     Meta-CVS maintains the tags to keep track of what has been merged
575     from what branch to what branch.
576 kaz 1.40
577     Bugfix: checkout -d foo bar was complaining about directory bar already
578     existing, even though it should only care about foo.
580 kaz 1.41 The remove command now requires explicit -R option to recursively remove
581 kaz 1.42 a directory. It has more detailed error reporting.
582 kaz 1.41
583 kaz 1.43 The move command has better error reporting.
585 kaz 1.39 Release 0.9, 2002-03-14:
586 kaz 1.37
587     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
588     (unless --nometa is specified, of course).
589 kaz 1.38
590     The mcvs filt command takes -r <revision> or -D <date> parameters.
591     This means to retrieve the MAP file as of the specified revision or
592     date and use that mapping to perform the filtering translation,
593     rather than using MAP-LOCAL.
594 kaz 1.39
595     The mcvs update command takes filename arguments now and also
596     supports the -p option.
597 kaz 1.37
598 kaz 1.36 Release 0.8, 2002-03-13:
599 kaz 1.28
600 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
601     listed as :ignore in MCVS/TYPES.
603 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
604     as a directory (if it does not already exist and is a non-directory).
606 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
607     directory, which is normally the same as the module name.
609 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
611 kaz 1.33 New global options --error-continue and --error-terminate to disable
612     interactive error handling in two different ways.
614 kaz 1.32 Log level of many messages has changed; many messages have been
615     relegated to debug level.
617 kaz 1.35 The import command now creates a .cvsignore file containing the name
618     MAP-LOCAL.
620 kaz 1.24 Release 0.7, 2002-03-09:
622 kaz 1.27 The import command collects a list of the file suffixes and brings up
623     a text editor to allow the user to edit their CVS keyword expansion
624     behavior. This information is kept in a new metafile called TYPES. The
625     add command also updates TYPES; it identifies any suffixes which are new,
626     and brings up an editor. The F- files now carry suffixes, which
627     simplifies interfacing with CVS, and also allows cvswrappers to work.
629     Recursive add works (mcvs add -R ...).
631     New command line option --nometa allows metafiles to be excluded from
632     diff, tag, and other commands; without the option they are inserted
633     into the list of files to be processed.
634 kaz 1.25
635 kaz 1.27 The commit option now takes an optional list of files or directories,
636     just like tag, diff, and others.
637 kaz 1.26
638 kaz 1.23 Release 0.6, 2002-02-16:
639 kaz 1.19
640 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
641 kaz 1.21
642 kaz 1.27 User can interactively select whether to clobber local files or leave
643     everything alone. Effects on the mapping file of a mcvs move are undone,
644     if the restructuring is rolled back, or raises a condition that leads
645     to termination.
647     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
648     during import, and specifies the CVS keyword expansion mode for files
649     having given suffixes, and can also tell Meta-CVS to ignore certain files
650     when importing or adding.
651 kaz 1.22
652 kaz 1.18 Release 0.5, 2002-02-10:
653 kaz 1.14
654 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
655     sanity checks to prevent adds and moves from accidentally clobbering
656     local files. A rearranging gone bad can be rolled back. Effects
657     of a failed mcvs add can also be rolled back.
658 kaz 1.14
659 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
660 kaz 1.15
661 kaz 1.13 Release 0.4, 2002-02-04:
662 kaz 1.10
663 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
664     which ensures that multiple command lines are generated if necessary to
665     avoid surpassing the operating system limit on argument and environment
666     vector size. This is important when someone wants to diff or stat a
667     subdirectory, which requires Meta-CVS to pick out the individual files
668     at the CVS level.
670     The tag, log, status and annotate commands are now available.
672     The MAP file is sorted on F- file names now, not path names. This
673     improves merging, since files do not move within the file when
674     they are renamed.
675 kaz 1.12
676 kaz 1.5 Release 0.3, 2002-02-02:
678 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
679     exit. The program properly indicates failed termination when it exits
680     due to an error condition.
682     Corrections are made in the command line option processing. If z is an
683     option that takes an argument, and the argument is -zx, then x is
684     treated as the argument to the option. Long options arguments are
685     recognized properly, according to the --opt=arg convention. The option
686     processing is restructured. Most of the commands now take the
687     appropriate cvs command-specific options.
689     The update algorithm performs dupe checking over the map, which could
690     happen during a merge.
692     Some more bugfixing has been done to the move command. It was still not
693     handling right some cases of an unversioned file being clobbered. Also,
694     it wasn't renaming a directory containing just one file.
696     I did some performance investigation for larger file sets, and
697     ended up rewriting the code that computes filesystem restructuring
698     changes and map duplicates.
699 kaz 1.5
700 kaz 1.4 Release 0.2, 2002-01-30:
702 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
703     performs some filesystem tests so it does the right thing when a versioned
704     file is moved over a non-versioned file, or when a file is moved into
705     a directory not known to Meta-CVS. Factored out reading and writing of
706     map files into functions.
707 kaz 1.4
708 kaz 1.2 Release 0.1, 2002-01-28:
710 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
711     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
712     mv command when copying a directory to an existing directory.
713 kaz 1.2
714     Release 0.0, 2002-01-27:
715 kaz 1.1
716 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
717     However, it is already usable in its present state and is being used for
718     version control by its author. If you can program in Common Lisp and would
719     like to help, take a look through the TODO file. Send me patches, ideas,
720     feature requests.

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