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Revision 1.186 - (hide annotations)
Sun Feb 1 05:14:53 2004 UTC (10 years, 2 months ago) by kaz
Branch: MAIN
Changes since 1.185: +1 -1 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 1.186 Release 1.0.12, 2004-01-31:
8 kaz 1.184
9 kaz 1.185 Fixes various bugs in ``mcvs convert'', so that it is
10 kaz 1.184 actually useable now, albeit still far from a perfect CVS
11     migration tool.
12 kaz 1.185
13     The remap command can now purge the MAP of entries that refer to non-existent
14     F- files, which is useful for cleaning up after the convert algorithm,
15     if necessary.
16 kaz 1.184
17     Release 1.0.11, 2004-01-28:
18 kaz 1.182
19 kaz 1.183 Fixes breakage of list-branches command introduced in last release.
21     Fixes failures in grab command when pulling new baseline over
22     partial sandbox. Renamed symlinks, and execute permissions of files
23     were being accessed using abstract instead of real path.
24 kaz 1.182
25 kaz 1.181 Release 1.0.10, 2004-01-09:
27     Builds on CLISP 2.32. The lb command no longer produces bogus warning
28     when working copy is sticky to a version tag.
30 kaz 1.180 Release 1.0.9, 2003-11-24:
31 kaz 1.178
32     Failures to open terminal for reasons other than non-existence
33     of the object are handled (e.g. ``no such device'', etc).
35 kaz 1.179 The --nometa option now works properly in those commands that
36     operate on the whole project when no file arguments are given
37     (tag, update, commit). Also, these commands no longer implicitly
38     include the meta files when file arguments *are* given.
39     These files can be included explicitly with the --meta global option.
41 kaz 1.177 Release 1.0.8, 2003-06-03:
42 kaz 1.174
43 kaz 1.175 The Cygwin /dev/tty problem is partially addressed. The program
44     won't fail if /dev does not exist, but emits a warning message,
45     and disables interactive error handling. The workaround is to use
46     ``mkdir /dev''. This is a CLISP issue; its OPEN function expects the
47     full path to a file to actually exist, but on Cygwin, there are fake
48     /dev/* paths even though /dev does not exist. If a real /dev directory
49     does in fact exist, it does not interfere with these magic paths.
50 kaz 1.174
51 kaz 1.176 The ``mcvs fi'' command no longer performs expansion on F- names
52     that are preceded by a slash.
54 kaz 1.174 Release 1.0.7, 2003-04-23:
55 kaz 1.170
56 kaz 1.173 New commands sync-to-cvs and sync-from-cvs expose the hard link
57     synchronization algorithm.
59 kaz 1.170 Revamped error recovery logic. To continue in an error situation now
60     consistently means ``take the bold action that may erase data''
61     or ``proceed in the most obvious way to finish the specified job''.
62 kaz 1.172 It never means ``roll back the operation and bail'', which was
63     confusing.
64 kaz 1.170
65 kaz 1.172 Termination is no longer unsafe; the `T' menu command, and the
66     equivalent --error-terminate global option perform all necessary
67     restoration and cleanup.
69     Errors that have more information to print, like a list of files or
70     whatever, now indicate it in a standard way which translates to the
71     `I' menu command.
72 kaz 1.171
73     Chatter output goes to standard error rather than standard output,
74     as do all error messages.
76     The interactive error menu now talks to the user using the controlling
77     tty, meaning that it will work even if the input or output of the
78 kaz 1.172 mcvs command are redirected. If no controlling tty is available,
79     then interactive error handling is disabled; the default behavior
80     is then like --error-terminate but can of course be overridden by
81     --error-continue.
82 kaz 1.171
83 kaz 1.169 Release 1.0.6, 2003-04-14:
84 kaz 1.166
85     The create command detects the existence of text editor backup files (or
86     other junk) in the MCVS directory after the editor is invoked on the
87     TYPES file. The user is prompted regarding their removal. If these files are
88     not removed, cvs import will bring them into the repository.
90 kaz 1.167 When Meta-CVS has to split a large CVS command into two or more
91     invocations with shorter argument lists, it now does not stop when one of
92     these invocations is unsuccessful; it does all of them, and combines
93     their termination indications by a logical AND. There was a bug in this
94     logic also which caused, upon termination failure, a cvs command to be
95     repeated for the same list of files.
97     Synchronization logic has been revamped. Unnecessary synchronizations
98     have been removed, which will make some commands run faster.
99     Synchronizations now have specific directions; for instance before
100     a CVS commit or update, changes are pushed from the directory tree to the MCVS
101     directory only, and after the CVS operation, in the reverse direction only.
103     Meta-CVS will no longer re-create missing F- files by linking from the
104     directory tree. Doing this causes two problems. One is that if a user
105     manually removes a F- file and do ``mcvs up'', she wants CVS to fetch a clean
106     copy and push it into the tree. She does not want the file to be restored
107     from the tree prior to the CVS update. Secondly, sometimes CVS itself
108     removes files. If we re-create the files, CVS will consider them to
109     be ``in the way''.
111     Failures to read from the MAP or MAP-LOCAL files are treated as interactive,
112     continuable errors. By continuing, the user agrees that the behavior will
113     be as if an empty map were read.
115 kaz 1.168 The grab command uses less memory for performing move analysis.
117 kaz 1.165 Release 1.0.5, 2003-02-25:
118 kaz 1.163
119     Bugfix: some one-argument command line options of CVS must be
120     specifies as a single parameter, with no separation between the
121     option letter and the argument characters. For example:
123     cvs log -r rev-1::rev-2 # invalid
124     cvs log -rrev1::rev2 # correct
126     Meta-CVS accepts either syntax, but it was generating the first form
127     when calling CVS. Now, *all* one-letter options that have an argument
128     are formatted in the second manner.
130 kaz 1.164 Bugfix: one more waitpid() issue was fixed; on fast machines, under
131     Linux, it was observed that from time to time Meta-CVS would get
132     a -1/ECHILD when waiting for the CVS process.
134 kaz 1.162 Release 1.0.4, 2003-02-20:
136     Fix remaining occurences of the CVS ``No child processes'' abort
137     problem, affecting the list-branches command, merge command
138     and the -r option of the filt command.
140     Release 1.0.3, 2003-02-12:
142     ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
143     ! experimental main trunk of the Meta-CVS codebase, rather than
144     ! the 1.0 branch. But 1.0.4 does contain all of the changes
145     ! described here.
146 kaz 1.160
147     Fix for the CVS ``No child processes'' abort problem. It turns out
148     that CLISP sets the signal handling action for the SIGCHLD signal
149     to SIG_IGN, which is inherited by child processes across the
150     fork() and execvp() calls used in our mcvs_spawn() function.
151     We correct the problem by resetting the signal handler to SIG_DFL
152     just before executing the new process image.
153 kaz 1.161
154     New feature, --up option. The argument is a nonnegative integer value
155     (default is zero) which specifies how many sandbox nesting levels to
156     escape out of when locating the sandbox root. This helps work with
157     nested Meta-CVS sandboxes.
158 kaz 1.160
159 kaz 1.162 Release 1.0.2, 2003-02-10:
160 kaz 1.157
161     Bugfix in waitpid logic in the C library for running external processes;
162     we were not dealing with an interrupted waitpid.
164 kaz 1.158 Behavior of mcvs tag is changed: when there are no filename arguments,
165     the whole tree is tagged including the metafiles. In other words, it
166     now works like the commit command.
168 kaz 1.157 Release 1.0.1, 2003-01-30:
169 kaz 1.154
170     Hard link sync optimization: update of a subset of files, commit, and
171     other operations like log and diff don't need to synchronize all
172     hard links, just the ones operated on.
174 kaz 1.155 The merge and remerge commands support -k option for overriding
175     CVS keyword expansion mode.
177 kaz 1.156 Fixes to getcwd error handling.
178 kaz 1.157
179     Improvement in install.sh script's logic for locating CLISP installation
180     directory.
181 kaz 1.156
182 kaz 1.153 Release 1.0, 2003-01-01:
183 kaz 1.147
184 kaz 1.151 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
185     because it adds some new C functions to the Lisp executable.
187 kaz 1.147 Security fix: read-time evaluation was not suppressed when reading
188     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
189     was possible for Alice to check in something that would execute
190     arbitrary code on Bob's computer.
192 kaz 1.148 Optimization: use fork and exec to launch CVS rather than CLISP's
193     run-program function, which indirects through the shell interpreter.
194 kaz 1.153 (On Cygwin, the spawnvp function is used).
195 kaz 1.148
196 kaz 1.149 Performance fix: stat() was being called superfluously by the
197     hard synchronization code, twice for each file.
199 kaz 1.150 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
200     which is the case under Cygwin with newer CLISP releases.
202 kaz 1.146 Release 0.99, 2002-11-17:
203 kaz 1.135
204 kaz 1.140 New link command for creating symbolic links.
206 kaz 1.144 Global option -n (dry run---don't modify filesystem) is processed
207     internally now, not just passed to CVS.
209 kaz 1.135 Failure to invoke text editor is handled.
211 kaz 1.136 The -r option of filt is fixed; it has been broken since the change to the
212     new MAP format, because it was reading the raw map representation, not
213     passing it through the right conversion steps that are needed now.
215 kaz 1.138 Bugfix to purge and remap commands: they were fooled by CVS-generated
216     files in the MCVS/CVS directory. Specifically, files having F- names, and a
217     the suffix ,t.
219 kaz 1.141 Bugfix to add logic in directory restructuring: there was the possibility
220     of mistakingly taking a clobbered local file to be a new local version of
221     the added file, instead of replacing it. This could happen if the local
222     file had a future timestamp relative to the one coming from the repository.
224 kaz 1.143 The prop command does not synchronize or write out map if no options are
225     specified.
227 kaz 1.144 Help text added for move and branch commands. Help text for grab rewritten.
228 kaz 1.137
229 kaz 1.145 The CVSEDITOR and VISUAL environment variables are now checked, not
230     only EDITOR.
232 kaz 1.134 Release 0.98, 2002-10-13:
233 kaz 1.128
234 kaz 1.133 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
235     which could cause information loss if the two differ. It now reads from MAP
236     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
237     update operation invoked by prop, as before).
239     Invocation of external programs included in debug trace.
240 kaz 1.128
241     The filt command does not filter F- names if they are immediately preceded by
242     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
243     references to the actual F- links, rather than abstract references.
245 kaz 1.129 The update command now supports the -C option, to fetch the repository
246     copy, throwing away local changes. It also now honors the --metaonly
247     and --nometa options.
248 kaz 1.130
249     The export command has been added, for checking out documents without creating
250     a working copy (no MCVS directory in the root of the checkout).
251 kaz 1.131
252 kaz 1.133 The watch command has been added. Note that its syntax differs from that
253     of CVS.
254 kaz 1.132
255     The watchers, editors, edit, and unedit commands have been added.
256 kaz 1.134
257     A script called mcvs-upgrade is now included, and installs alongside the mcvs
258     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
259     giving users of binary distributions an easy way to upgrade from source
260     code.
262 kaz 1.127 Release 0.97, 2002-10-06:
263 kaz 1.119
264     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
265     (www.cygwin.com). It still relies on hard links, which requires
266     Windows 2000 or XP, and the NTFS filesystem. It probably won't
267     work over FAT.
268 kaz 1.120
269     New --debug option for verbose output.
271     Cleaned up of error messages. Error messages don't specify prefixes like
272     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
273     ``mcvs:'' prefix when printing the messages in a situation when the error is
274     not continuable.
275 kaz 1.119
276 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
277     directories, effectively ignoring arguments that are regular files.
278 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
279 kaz 1.121
280 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
281     directory are no longer silent no-ops, but produce an error.
282 kaz 1.123
283 kaz 1.124 The remap command now preserves property lists, and picks up changes
284     in executable permission.
286     The grab command now notices when a file changes from having execute
287     permission to not having execute permission.
289 kaz 1.126 Operations on the path . now work in a partial sandbox.
291 kaz 1.118 Release 0.96, 2002-09-21:
292 kaz 1.110
293     The restore command was left broken during the change to the new
294     filemap format. It is now fixed.
296 kaz 1.111 The grab command now handles execute permission bits properly.
298 kaz 1.112 Some more commands have detailed help.
300 kaz 1.113 There is now a global option -i which specifies a script to be
301 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
302     instance suppose you have the following script and call it
303     list-matching:
304 kaz 1.113
305     #!/usr/local/bin/mcvs -i
306     (in-sandbox-root-dir
307 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
308 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
309 kaz 1.114 (dolist (entry mapping)
310     (with-slots (path raw-plist) entry
311 kaz 1.117 (when (funcall test-func raw-plist)
312 kaz 1.114 (format t "~a~%" path))))))
314     Then to list the names of files whose "importance" property is
315     a value greater than two, run:
317     ./list-matching '(lambda (plist)
318     (let ((imp (getf plist :importance)))
319     (and imp (> imp 2))))'
320 kaz 1.117
321     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
322     break as Meta-CVS is maintained. There is currently no published set of
323     stable interfaces.
324 kaz 1.113
325 kaz 1.109 Release 0.95, 2002-09-16:
326 kaz 1.104
327 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
328     or the linkkit directory; these have been removed. These materials
329     are available at every CLISP installation; install.sh now finds them
330     and uses them. Users of non-x86 machines ran into problems because of this
331     because linkkit/clisp.h contains architecture-dependent information.
332 kaz 1.104
333 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
334     in the map.
336 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
337     help'' command acts just like ``mcvs --help'' without any arguments. If given
338     an additional parameter which specifies a Meta-CVS command, it produces more
339     detailed documentation for that comand. Help exists already for a few
340     commands.
342 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
343     in beta. It is only five updates away from a 1.0 release.
344 kaz 1.106
345 kaz 1.103 Release 0.24, 2002-09-08:
346 kaz 1.98
347 kaz 1.99 The mapping entries for both symlinks and files have extensible property
348     lists now. These are stored in the optional fourth and fifth list elements,
349     respectively of the :FILE and :SYMLINK map entries.
351     Versioning of the execute permission of files is supported, represented as
352     the :EXEC property of a :FILE mapping entry.
353 kaz 1.98
354 kaz 1.100 Some lame syntax is provided for manipulating properties:
356 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
357 kaz 1.100
358     will set the property FOO to true, set the property BAR to false,
359     and remove the property BAZ, in the files main.c and list.c.
360     The execute permission is represented by the property EXEC.
362 kaz 1.97 Release 0.23, 2002-09-02:
363 kaz 1.95
364 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
365     changes into the mapping.
367     The grab command now figures out moved symlinks. Moved symlinks are those
368     whose pathname has changed, but which continue to point to the same object
369     (which may also have been moved).
370 kaz 1.95
371 kaz 1.94 Release 0.22, 2002-08-31:
372 kaz 1.93
373     Symbolic links are now versioned objects. The format of the MAP file
374     changes to accomodate this; the new Meta-CVS will read old MAP
375     files; when it writes it will write the new format. Old Meta-CVS won't
376     read the new format.
378     When a new module is created from an existing file tree, symbolic
379     links will be recognized and added. The add command will also add
380     symbolic links. Symbolic links can be renamed and moved; this does
381     nothing with their contents. They can point outside of the sandbox
382     using relative or absolute paths.
384 kaz 1.94 TODO:
386 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
387     retarget them; retargetting a link can be done manually by editing MCVS/MAP
388     and updating. Retargetting a link using the ln -s command, won't
389 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
391     The grab command does not yet compute symbolic link moves; a moved symbolic
392     link is treated as a remove and add. This will be easy to fix.
394     The remap command ignores symlinks.
395 kaz 1.93
396 kaz 1.92 Release 0.21, 2002-08-04:
397 kaz 1.88
398 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
399     argument, but using the -r command option. If no revision is specified with
400     -r, then a -A must be specified to make the grab go to the main trunk. This
401     is a safety feature, since grabbing foreign snapshots to the trunk is almost
402     always wrong, though it could be useful during backup recovery, or for fixing
403     mistakes.
405 kaz 1.91 The way operating system functions are targetted has changed. Instead of
406     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
407     has its own module for calling foreign functions. This module is portable;
408     it does not depend on the layout of glibc data structures. So Meta-CVS
409     is in theory now portable to other Unixes (provided they have /dev/urandom).
411 kaz 1.87 Release 0.20, 2002-07-27:
412 kaz 1.86
413     The commit command does a true global commit when given no file or directory
414     parameters, and not given the --metaonly option. This means commiting all
415     changes in the MCVS directory, even if they are in F-files that are not
416     currently mapped.
418 kaz 1.85 Release 0.19, 2002-07-16:
419 kaz 1.81
420     When moving multiple files or directories to a subdirectory, a
421     restart is now provided to skip over bad ones and continue.
423 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
424     files. There are no moves to deduce in that case.
426 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
427     rather than at the abstract root of the module.
429 kaz 1.83 Some other algorithmic improvements made.
430 kaz 1.82
431     The first few sections of a user guide have been written.
433 kaz 1.80 Release 0.18, 2002-07-07:
434 kaz 1.77
435 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
436     subdirectory of the project. Specifying a subdirectory results in a ``partial
437     sandbox'', whose root directory is the specified subdirectory of the larger
438     project. The rest of the project is ``invisible'' to that sandbox. A
439     subdirectory argument can also be given to mcvs grab, which will cause it to
440     integrate the new source tree against a subtree of the Meta-CVS project
441 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
442     that case you get an empty sandbox. Adding files to this sandbox will cause
443     the tree to exist in the project.
444 kaz 1.78
445 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
446     wrongly treating them as removes and adds.
448 kaz 1.76 Release 0.17, 2002-07-02:
449 kaz 1.71
450     The create command no longer takes a vendor branch. Instead the symbol
451     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
453 kaz 1.72 The grab command no longer does useless synchronization on files that
454     are about to be deleted.
456 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
457     that have no mapping.
459     New restore command; re-enters deleted files into the mapping, under
460     the ``lost+found'' directory, using their F- names as sandbox names.
461 kaz 1.73
462 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
463     working copy, it must not delete that working copy's MCVS sub directory.
465 kaz 1.70 Release 0.16, 2002-06-29:
466 kaz 1.67
467     Added new heuristics to grab command. Paths are analyzed to determine
468     move distance. Greater distances reduce the confidence in a move.
469     These rules help sort out grabs in a project where similar or
470     duplicate files are subject to parallel moves, the ambiguity being
471 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
472     now. Common words (those that appear in many files) are ignored when
473     comparing files.
474 kaz 1.67
475 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
476     up a little bit. Most reporting commands like log or diff no longer
477     operate on meta files by default; they must be explicitly told to do
478     so with --meta or --metaonly. Only the commit command implicitly includes
479     metafiles by default, and so if this is not wanted, --nometa must be
480     selected. The update command remains special; if it is given file
481     arguments, it does not include meta files. If given no arguments, it
482     does a global CVS up across the entire project.
484 kaz 1.66 Release 0.15, 2002-06-25:
485 kaz 1.61
486 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
487     paths; the result is a noticeable performance improvement in some commands
488     that process large numbers of files.
489 kaz 1.61
490 kaz 1.62 Renamed ``import'' command to ``create''.
492 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
493     broken :postorder support in directory walking function.
494 kaz 1.63
495 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
496     the checkout was directed to an existing directory.
498 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
499 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
500     It determines what files have been added and removed in the snapshot, and
501     tries to compute which removes and adds are actually moves. This is done by
502     analyzing the actual contents of the files according to a crude algorithm to
503     do fuzzy comparisons, so that even files which were modified as well as moved
504     are discovered.
505 kaz 1.64
506 kaz 1.60 Release 0.14, 2002-06-21:
507 kaz 1.59
508     Bugfix: mcvs add was broken for files that have no suffix, causing
509 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
510     handling was added.
511 kaz 1.59
512 kaz 1.58 Release 0.13, 2002-06-06:
513 kaz 1.55
514     Sandbox synchronization now handles the case of two files having
515     the same timestamp. An error is signaled, with interactive resolution
516     to synchronize either way, or do nothing.
518 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
519     is now a continuable error.
521     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
522     whose suffix is one of the ones cvs ignores by default.
524 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
525     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
526     moves and deletions, and reconstruct the mapping accordingly; that is,
527     it remaps the new structure. This command uses inode numbers to identify
528     files; if a file is copied and then the original is deleted, that won't
529     be recognized as a move.
531 kaz 1.53 Release 0.12, 2002-04-18:
532 kaz 1.51
533     Bugfix: remove was broken in 0.10, fixed now.
535 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
536     ``. not known to Meta-CVS''.
538 kaz 1.52 The checkout operation now can now populate an existing directory, including
539     the current working directory (mcvs co -d . modulename). Of course, the
540     target directory cannot be an existing Meta-CVS sandbox.
541     This is a useful feature, which allows sandboxes to blend with an
542     existing directory structure.
544     Checkout now uses the same function for generating the sandbox
545     structure as does update. This is now necessary, because local files
546     can be clobbered by the checkout.
548 kaz 1.50 Release 0.11, 2002-04-12:
549 kaz 1.46
550     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
551     from CVS/Root and passes it via -d. This is necessary because rtag does not
552     look at a local CVS subdirectory for this information, only the
553     -d option or the environment variable.
555 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
556     what sticky tag the sandbox is updated to.
558     Command for switching branches added (switch or sw).
560     Merge detects that working copy is on non-branch tag and bails.
561 kaz 1.47
562 kaz 1.49 Absolute paths can now be specified as file arguments. These are
563     based from the root directory of the sandbox, not the actual filesystem root
564     directory.
566 kaz 1.45 Release 0.10, 2002-04-03:
567 kaz 1.44
568     Automatic merging implemented. Branch is created using branch command,
569     and merging from another branch is done using simple merge command.
570     Meta-CVS maintains the tags to keep track of what has been merged
571     from what branch to what branch.
572 kaz 1.40
573     Bugfix: checkout -d foo bar was complaining about directory bar already
574     existing, even though it should only care about foo.
576 kaz 1.41 The remove command now requires explicit -R option to recursively remove
577 kaz 1.42 a directory. It has more detailed error reporting.
578 kaz 1.41
579 kaz 1.43 The move command has better error reporting.
581 kaz 1.39 Release 0.9, 2002-03-14:
582 kaz 1.37
583     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
584     (unless --nometa is specified, of course).
585 kaz 1.38
586     The mcvs filt command takes -r <revision> or -D <date> parameters.
587     This means to retrieve the MAP file as of the specified revision or
588     date and use that mapping to perform the filtering translation,
589     rather than using MAP-LOCAL.
590 kaz 1.39
591     The mcvs update command takes filename arguments now and also
592     supports the -p option.
593 kaz 1.37
594 kaz 1.36 Release 0.8, 2002-03-13:
595 kaz 1.28
596 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
597     listed as :ignore in MCVS/TYPES.
599 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
600     as a directory (if it does not already exist and is a non-directory).
602 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
603     directory, which is normally the same as the module name.
605 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
607 kaz 1.33 New global options --error-continue and --error-terminate to disable
608     interactive error handling in two different ways.
610 kaz 1.32 Log level of many messages has changed; many messages have been
611     relegated to debug level.
613 kaz 1.35 The import command now creates a .cvsignore file containing the name
614     MAP-LOCAL.
616 kaz 1.24 Release 0.7, 2002-03-09:
618 kaz 1.27 The import command collects a list of the file suffixes and brings up
619     a text editor to allow the user to edit their CVS keyword expansion
620     behavior. This information is kept in a new metafile called TYPES. The
621     add command also updates TYPES; it identifies any suffixes which are new,
622     and brings up an editor. The F- files now carry suffixes, which
623     simplifies interfacing with CVS, and also allows cvswrappers to work.
625     Recursive add works (mcvs add -R ...).
627     New command line option --nometa allows metafiles to be excluded from
628     diff, tag, and other commands; without the option they are inserted
629     into the list of files to be processed.
630 kaz 1.25
631 kaz 1.27 The commit option now takes an optional list of files or directories,
632     just like tag, diff, and others.
633 kaz 1.26
634 kaz 1.23 Release 0.6, 2002-02-16:
635 kaz 1.19
636 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
637 kaz 1.21
638 kaz 1.27 User can interactively select whether to clobber local files or leave
639     everything alone. Effects on the mapping file of a mcvs move are undone,
640     if the restructuring is rolled back, or raises a condition that leads
641     to termination.
643     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
644     during import, and specifies the CVS keyword expansion mode for files
645     having given suffixes, and can also tell Meta-CVS to ignore certain files
646     when importing or adding.
647 kaz 1.22
648 kaz 1.18 Release 0.5, 2002-02-10:
649 kaz 1.14
650 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
651     sanity checks to prevent adds and moves from accidentally clobbering
652     local files. A rearranging gone bad can be rolled back. Effects
653     of a failed mcvs add can also be rolled back.
654 kaz 1.14
655 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
656 kaz 1.15
657 kaz 1.13 Release 0.4, 2002-02-04:
658 kaz 1.10
659 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
660     which ensures that multiple command lines are generated if necessary to
661     avoid surpassing the operating system limit on argument and environment
662     vector size. This is important when someone wants to diff or stat a
663     subdirectory, which requires Meta-CVS to pick out the individual files
664     at the CVS level.
666     The tag, log, status and annotate commands are now available.
668     The MAP file is sorted on F- file names now, not path names. This
669     improves merging, since files do not move within the file when
670     they are renamed.
671 kaz 1.12
672 kaz 1.5 Release 0.3, 2002-02-02:
674 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
675     exit. The program properly indicates failed termination when it exits
676     due to an error condition.
678     Corrections are made in the command line option processing. If z is an
679     option that takes an argument, and the argument is -zx, then x is
680     treated as the argument to the option. Long options arguments are
681     recognized properly, according to the --opt=arg convention. The option
682     processing is restructured. Most of the commands now take the
683     appropriate cvs command-specific options.
685     The update algorithm performs dupe checking over the map, which could
686     happen during a merge.
688     Some more bugfixing has been done to the move command. It was still not
689     handling right some cases of an unversioned file being clobbered. Also,
690     it wasn't renaming a directory containing just one file.
692     I did some performance investigation for larger file sets, and
693     ended up rewriting the code that computes filesystem restructuring
694     changes and map duplicates.
695 kaz 1.5
696 kaz 1.4 Release 0.2, 2002-01-30:
698 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
699     performs some filesystem tests so it does the right thing when a versioned
700     file is moved over a non-versioned file, or when a file is moved into
701     a directory not known to Meta-CVS. Factored out reading and writing of
702     map files into functions.
703 kaz 1.4
704 kaz 1.2 Release 0.1, 2002-01-28:
706 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
707     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
708     mv command when copying a directory to an existing directory.
709 kaz 1.2
710     Release 0.0, 2002-01-27:
711 kaz 1.1
712 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
713     However, it is already usable in its present state and is being used for
714     version control by its author. If you can program in Common Lisp and would
715     like to help, take a look through the TODO file. Send me patches, ideas,
716     feature requests.

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