/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Revision 1.181 - (hide annotations)
Fri Jan 9 16:04:16 2004 UTC (10 years, 3 months ago) by kaz
Branch: MAIN
Changes since 1.180: +5 -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?-??-??:
4    
5 kaz 1.162 All Lisp symbols are in a package.
6 kaz 1.142
7 kaz 1.181 Release 1.0.10, 2004-01-09:
8    
9     Builds on CLISP 2.32. The lb command no longer produces bogus warning
10     when working copy is sticky to a version tag.
11    
12 kaz 1.180 Release 1.0.9, 2003-11-24:
13 kaz 1.178
14     Failures to open terminal for reasons other than non-existence
15     of the object are handled (e.g. ``no such device'', etc).
16    
17 kaz 1.179 The --nometa option now works properly in those commands that
18     operate on the whole project when no file arguments are given
19     (tag, update, commit). Also, these commands no longer implicitly
20     include the meta files when file arguments *are* given.
21     These files can be included explicitly with the --meta global option.
22    
23 kaz 1.177 Release 1.0.8, 2003-06-03:
24 kaz 1.174
25 kaz 1.175 The Cygwin /dev/tty problem is partially addressed. The program
26     won't fail if /dev does not exist, but emits a warning message,
27     and disables interactive error handling. The workaround is to use
28     ``mkdir /dev''. This is a CLISP issue; its OPEN function expects the
29     full path to a file to actually exist, but on Cygwin, there are fake
30     /dev/* paths even though /dev does not exist. If a real /dev directory
31     does in fact exist, it does not interfere with these magic paths.
32 kaz 1.174
33 kaz 1.176 The ``mcvs fi'' command no longer performs expansion on F- names
34     that are preceded by a slash.
35    
36 kaz 1.174 Release 1.0.7, 2003-04-23:
37 kaz 1.170
38 kaz 1.173 New commands sync-to-cvs and sync-from-cvs expose the hard link
39     synchronization algorithm.
40    
41 kaz 1.170 Revamped error recovery logic. To continue in an error situation now
42     consistently means ``take the bold action that may erase data''
43     or ``proceed in the most obvious way to finish the specified job''.
44 kaz 1.172 It never means ``roll back the operation and bail'', which was
45     confusing.
46 kaz 1.170
47 kaz 1.172 Termination is no longer unsafe; the `T' menu command, and the
48     equivalent --error-terminate global option perform all necessary
49     restoration and cleanup.
50    
51     Errors that have more information to print, like a list of files or
52     whatever, now indicate it in a standard way which translates to the
53     `I' menu command.
54 kaz 1.171
55     Chatter output goes to standard error rather than standard output,
56     as do all error messages.
57    
58     The interactive error menu now talks to the user using the controlling
59     tty, meaning that it will work even if the input or output of the
60 kaz 1.172 mcvs command are redirected. If no controlling tty is available,
61     then interactive error handling is disabled; the default behavior
62     is then like --error-terminate but can of course be overridden by
63     --error-continue.
64 kaz 1.171
65 kaz 1.169 Release 1.0.6, 2003-04-14:
66 kaz 1.166
67     The create command detects the existence of text editor backup files (or
68     other junk) in the MCVS directory after the editor is invoked on the
69     TYPES file. The user is prompted regarding their removal. If these files are
70     not removed, cvs import will bring them into the repository.
71    
72 kaz 1.167 When Meta-CVS has to split a large CVS command into two or more
73     invocations with shorter argument lists, it now does not stop when one of
74     these invocations is unsuccessful; it does all of them, and combines
75     their termination indications by a logical AND. There was a bug in this
76     logic also which caused, upon termination failure, a cvs command to be
77     repeated for the same list of files.
78    
79     Synchronization logic has been revamped. Unnecessary synchronizations
80     have been removed, which will make some commands run faster.
81     Synchronizations now have specific directions; for instance before
82     a CVS commit or update, changes are pushed from the directory tree to the MCVS
83     directory only, and after the CVS operation, in the reverse direction only.
84    
85     Meta-CVS will no longer re-create missing F- files by linking from the
86     directory tree. Doing this causes two problems. One is that if a user
87     manually removes a F- file and do ``mcvs up'', she wants CVS to fetch a clean
88     copy and push it into the tree. She does not want the file to be restored
89     from the tree prior to the CVS update. Secondly, sometimes CVS itself
90     removes files. If we re-create the files, CVS will consider them to
91     be ``in the way''.
92    
93     Failures to read from the MAP or MAP-LOCAL files are treated as interactive,
94     continuable errors. By continuing, the user agrees that the behavior will
95     be as if an empty map were read.
96    
97 kaz 1.168 The grab command uses less memory for performing move analysis.
98    
99 kaz 1.165 Release 1.0.5, 2003-02-25:
100 kaz 1.163
101     Bugfix: some one-argument command line options of CVS must be
102     specifies as a single parameter, with no separation between the
103     option letter and the argument characters. For example:
104    
105     cvs log -r rev-1::rev-2 # invalid
106     cvs log -rrev1::rev2 # correct
107    
108     Meta-CVS accepts either syntax, but it was generating the first form
109     when calling CVS. Now, *all* one-letter options that have an argument
110     are formatted in the second manner.
111    
112 kaz 1.164 Bugfix: one more waitpid() issue was fixed; on fast machines, under
113     Linux, it was observed that from time to time Meta-CVS would get
114     a -1/ECHILD when waiting for the CVS process.
115    
116 kaz 1.162 Release 1.0.4, 2003-02-20:
117    
118     Fix remaining occurences of the CVS ``No child processes'' abort
119     problem, affecting the list-branches command, merge command
120     and the -r option of the filt command.
121    
122     Release 1.0.3, 2003-02-12:
123    
124     ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
125     ! experimental main trunk of the Meta-CVS codebase, rather than
126     ! the 1.0 branch. But 1.0.4 does contain all of the changes
127     ! described here.
128 kaz 1.160
129     Fix for the CVS ``No child processes'' abort problem. It turns out
130     that CLISP sets the signal handling action for the SIGCHLD signal
131     to SIG_IGN, which is inherited by child processes across the
132     fork() and execvp() calls used in our mcvs_spawn() function.
133     We correct the problem by resetting the signal handler to SIG_DFL
134     just before executing the new process image.
135 kaz 1.161
136     New feature, --up option. The argument is a nonnegative integer value
137     (default is zero) which specifies how many sandbox nesting levels to
138     escape out of when locating the sandbox root. This helps work with
139     nested Meta-CVS sandboxes.
140 kaz 1.160
141 kaz 1.162 Release 1.0.2, 2003-02-10:
142 kaz 1.157
143     Bugfix in waitpid logic in the C library for running external processes;
144     we were not dealing with an interrupted waitpid.
145    
146 kaz 1.158 Behavior of mcvs tag is changed: when there are no filename arguments,
147     the whole tree is tagged including the metafiles. In other words, it
148     now works like the commit command.
149    
150 kaz 1.157 Release 1.0.1, 2003-01-30:
151 kaz 1.154
152     Hard link sync optimization: update of a subset of files, commit, and
153     other operations like log and diff don't need to synchronize all
154     hard links, just the ones operated on.
155    
156 kaz 1.155 The merge and remerge commands support -k option for overriding
157     CVS keyword expansion mode.
158    
159 kaz 1.156 Fixes to getcwd error handling.
160 kaz 1.157
161     Improvement in install.sh script's logic for locating CLISP installation
162     directory.
163 kaz 1.156
164 kaz 1.153 Release 1.0, 2003-01-01:
165 kaz 1.147
166 kaz 1.151 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
167     because it adds some new C functions to the Lisp executable.
168    
169 kaz 1.147 Security fix: read-time evaluation was not suppressed when reading
170     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
171     was possible for Alice to check in something that would execute
172     arbitrary code on Bob's computer.
173    
174 kaz 1.148 Optimization: use fork and exec to launch CVS rather than CLISP's
175     run-program function, which indirects through the shell interpreter.
176 kaz 1.153 (On Cygwin, the spawnvp function is used).
177 kaz 1.148
178 kaz 1.149 Performance fix: stat() was being called superfluously by the
179     hard synchronization code, twice for each file.
180    
181 kaz 1.150 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
182     which is the case under Cygwin with newer CLISP releases.
183    
184 kaz 1.146 Release 0.99, 2002-11-17:
185 kaz 1.135
186 kaz 1.140 New link command for creating symbolic links.
187    
188 kaz 1.144 Global option -n (dry run---don't modify filesystem) is processed
189     internally now, not just passed to CVS.
190    
191 kaz 1.135 Failure to invoke text editor is handled.
192    
193 kaz 1.136 The -r option of filt is fixed; it has been broken since the change to the
194     new MAP format, because it was reading the raw map representation, not
195     passing it through the right conversion steps that are needed now.
196    
197 kaz 1.138 Bugfix to purge and remap commands: they were fooled by CVS-generated
198     files in the MCVS/CVS directory. Specifically, files having F- names, and a
199     the suffix ,t.
200    
201 kaz 1.141 Bugfix to add logic in directory restructuring: there was the possibility
202     of mistakingly taking a clobbered local file to be a new local version of
203     the added file, instead of replacing it. This could happen if the local
204     file had a future timestamp relative to the one coming from the repository.
205    
206 kaz 1.143 The prop command does not synchronize or write out map if no options are
207     specified.
208    
209 kaz 1.144 Help text added for move and branch commands. Help text for grab rewritten.
210 kaz 1.137
211 kaz 1.145 The CVSEDITOR and VISUAL environment variables are now checked, not
212     only EDITOR.
213    
214 kaz 1.134 Release 0.98, 2002-10-13:
215 kaz 1.128
216 kaz 1.133 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
217     which could cause information loss if the two differ. It now reads from MAP
218     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
219     update operation invoked by prop, as before).
220    
221     Invocation of external programs included in debug trace.
222 kaz 1.128
223     The filt command does not filter F- names if they are immediately preceded by
224     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
225     references to the actual F- links, rather than abstract references.
226    
227 kaz 1.129 The update command now supports the -C option, to fetch the repository
228     copy, throwing away local changes. It also now honors the --metaonly
229     and --nometa options.
230 kaz 1.130
231     The export command has been added, for checking out documents without creating
232     a working copy (no MCVS directory in the root of the checkout).
233 kaz 1.131
234 kaz 1.133 The watch command has been added. Note that its syntax differs from that
235     of CVS.
236 kaz 1.132
237     The watchers, editors, edit, and unedit commands have been added.
238 kaz 1.134
239     A script called mcvs-upgrade is now included, and installs alongside the mcvs
240     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
241     giving users of binary distributions an easy way to upgrade from source
242     code.
243    
244 kaz 1.127 Release 0.97, 2002-10-06:
245 kaz 1.119
246     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
247     (www.cygwin.com). It still relies on hard links, which requires
248     Windows 2000 or XP, and the NTFS filesystem. It probably won't
249     work over FAT.
250 kaz 1.120
251     New --debug option for verbose output.
252    
253     Cleaned up of error messages. Error messages don't specify prefixes like
254     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
255     ``mcvs:'' prefix when printing the messages in a situation when the error is
256     not continuable.
257 kaz 1.119
258 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
259     directories, effectively ignoring arguments that are regular files.
260 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
261 kaz 1.121
262 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
263     directory are no longer silent no-ops, but produce an error.
264 kaz 1.123
265 kaz 1.124 The remap command now preserves property lists, and picks up changes
266     in executable permission.
267    
268     The grab command now notices when a file changes from having execute
269     permission to not having execute permission.
270    
271 kaz 1.126 Operations on the path . now work in a partial sandbox.
272    
273 kaz 1.118 Release 0.96, 2002-09-21:
274 kaz 1.110
275     The restore command was left broken during the change to the new
276     filemap format. It is now fixed.
277    
278 kaz 1.111 The grab command now handles execute permission bits properly.
279    
280 kaz 1.112 Some more commands have detailed help.
281    
282 kaz 1.113 There is now a global option -i which specifies a script to be
283 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
284     instance suppose you have the following script and call it
285     list-matching:
286 kaz 1.113
287     #!/usr/local/bin/mcvs -i
288     (in-sandbox-root-dir
289 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
290 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
291 kaz 1.114 (dolist (entry mapping)
292     (with-slots (path raw-plist) entry
293 kaz 1.117 (when (funcall test-func raw-plist)
294 kaz 1.114 (format t "~a~%" path))))))
295    
296     Then to list the names of files whose "importance" property is
297     a value greater than two, run:
298    
299     ./list-matching '(lambda (plist)
300     (let ((imp (getf plist :importance)))
301     (and imp (> imp 2))))'
302 kaz 1.117
303     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
304     break as Meta-CVS is maintained. There is currently no published set of
305     stable interfaces.
306 kaz 1.113
307 kaz 1.109 Release 0.95, 2002-09-16:
308 kaz 1.104
309 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
310     or the linkkit directory; these have been removed. These materials
311     are available at every CLISP installation; install.sh now finds them
312     and uses them. Users of non-x86 machines ran into problems because of this
313     because linkkit/clisp.h contains architecture-dependent information.
314 kaz 1.104
315 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
316     in the map.
317    
318 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
319     help'' command acts just like ``mcvs --help'' without any arguments. If given
320     an additional parameter which specifies a Meta-CVS command, it produces more
321     detailed documentation for that comand. Help exists already for a few
322     commands.
323    
324 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
325     in beta. It is only five updates away from a 1.0 release.
326 kaz 1.106
327 kaz 1.103 Release 0.24, 2002-09-08:
328 kaz 1.98
329 kaz 1.99 The mapping entries for both symlinks and files have extensible property
330     lists now. These are stored in the optional fourth and fifth list elements,
331     respectively of the :FILE and :SYMLINK map entries.
332    
333     Versioning of the execute permission of files is supported, represented as
334     the :EXEC property of a :FILE mapping entry.
335 kaz 1.98
336 kaz 1.100 Some lame syntax is provided for manipulating properties:
337    
338 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
339 kaz 1.100
340     will set the property FOO to true, set the property BAR to false,
341     and remove the property BAZ, in the files main.c and list.c.
342     The execute permission is represented by the property EXEC.
343    
344 kaz 1.97 Release 0.23, 2002-09-02:
345 kaz 1.95
346 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
347     changes into the mapping.
348    
349     The grab command now figures out moved symlinks. Moved symlinks are those
350     whose pathname has changed, but which continue to point to the same object
351     (which may also have been moved).
352 kaz 1.95
353 kaz 1.94 Release 0.22, 2002-08-31:
354 kaz 1.93
355     Symbolic links are now versioned objects. The format of the MAP file
356     changes to accomodate this; the new Meta-CVS will read old MAP
357     files; when it writes it will write the new format. Old Meta-CVS won't
358     read the new format.
359    
360     When a new module is created from an existing file tree, symbolic
361     links will be recognized and added. The add command will also add
362     symbolic links. Symbolic links can be renamed and moved; this does
363     nothing with their contents. They can point outside of the sandbox
364     using relative or absolute paths.
365    
366 kaz 1.94 TODO:
367    
368 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
369     retarget them; retargetting a link can be done manually by editing MCVS/MAP
370     and updating. Retargetting a link using the ln -s command, won't
371 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
372    
373     The grab command does not yet compute symbolic link moves; a moved symbolic
374     link is treated as a remove and add. This will be easy to fix.
375    
376     The remap command ignores symlinks.
377 kaz 1.93
378 kaz 1.92 Release 0.21, 2002-08-04:
379 kaz 1.88
380 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
381     argument, but using the -r command option. If no revision is specified with
382     -r, then a -A must be specified to make the grab go to the main trunk. This
383     is a safety feature, since grabbing foreign snapshots to the trunk is almost
384     always wrong, though it could be useful during backup recovery, or for fixing
385     mistakes.
386    
387 kaz 1.91 The way operating system functions are targetted has changed. Instead of
388     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
389     has its own module for calling foreign functions. This module is portable;
390     it does not depend on the layout of glibc data structures. So Meta-CVS
391     is in theory now portable to other Unixes (provided they have /dev/urandom).
392    
393 kaz 1.87 Release 0.20, 2002-07-27:
394 kaz 1.86
395     The commit command does a true global commit when given no file or directory
396     parameters, and not given the --metaonly option. This means commiting all
397     changes in the MCVS directory, even if they are in F-files that are not
398     currently mapped.
399    
400 kaz 1.85 Release 0.19, 2002-07-16:
401 kaz 1.81
402     When moving multiple files or directories to a subdirectory, a
403     restart is now provided to skip over bad ones and continue.
404    
405 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
406     files. There are no moves to deduce in that case.
407    
408 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
409     rather than at the abstract root of the module.
410    
411 kaz 1.83 Some other algorithmic improvements made.
412 kaz 1.82
413     The first few sections of a user guide have been written.
414    
415 kaz 1.80 Release 0.18, 2002-07-07:
416 kaz 1.77
417 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
418     subdirectory of the project. Specifying a subdirectory results in a ``partial
419     sandbox'', whose root directory is the specified subdirectory of the larger
420     project. The rest of the project is ``invisible'' to that sandbox. A
421     subdirectory argument can also be given to mcvs grab, which will cause it to
422     integrate the new source tree against a subtree of the Meta-CVS project
423 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
424     that case you get an empty sandbox. Adding files to this sandbox will cause
425     the tree to exist in the project.
426 kaz 1.78
427 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
428     wrongly treating them as removes and adds.
429    
430 kaz 1.76 Release 0.17, 2002-07-02:
431 kaz 1.71
432     The create command no longer takes a vendor branch. Instead the symbol
433     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
434    
435 kaz 1.72 The grab command no longer does useless synchronization on files that
436     are about to be deleted.
437    
438 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
439     that have no mapping.
440    
441     New restore command; re-enters deleted files into the mapping, under
442     the ``lost+found'' directory, using their F- names as sandbox names.
443 kaz 1.73
444 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
445     working copy, it must not delete that working copy's MCVS sub directory.
446    
447 kaz 1.70 Release 0.16, 2002-06-29:
448 kaz 1.67
449     Added new heuristics to grab command. Paths are analyzed to determine
450     move distance. Greater distances reduce the confidence in a move.
451     These rules help sort out grabs in a project where similar or
452     duplicate files are subject to parallel moves, the ambiguity being
453 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
454     now. Common words (those that appear in many files) are ignored when
455     comparing files.
456 kaz 1.67
457 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
458     up a little bit. Most reporting commands like log or diff no longer
459     operate on meta files by default; they must be explicitly told to do
460     so with --meta or --metaonly. Only the commit command implicitly includes
461     metafiles by default, and so if this is not wanted, --nometa must be
462     selected. The update command remains special; if it is given file
463     arguments, it does not include meta files. If given no arguments, it
464     does a global CVS up across the entire project.
465    
466 kaz 1.66 Release 0.15, 2002-06-25:
467 kaz 1.61
468 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
469     paths; the result is a noticeable performance improvement in some commands
470     that process large numbers of files.
471 kaz 1.61
472 kaz 1.62 Renamed ``import'' command to ``create''.
473    
474 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
475     broken :postorder support in directory walking function.
476 kaz 1.63
477 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
478     the checkout was directed to an existing directory.
479    
480 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
481 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
482     It determines what files have been added and removed in the snapshot, and
483     tries to compute which removes and adds are actually moves. This is done by
484     analyzing the actual contents of the files according to a crude algorithm to
485     do fuzzy comparisons, so that even files which were modified as well as moved
486     are discovered.
487 kaz 1.64
488 kaz 1.60 Release 0.14, 2002-06-21:
489 kaz 1.59
490     Bugfix: mcvs add was broken for files that have no suffix, causing
491 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
492     handling was added.
493 kaz 1.59
494 kaz 1.58 Release 0.13, 2002-06-06:
495 kaz 1.55
496     Sandbox synchronization now handles the case of two files having
497     the same timestamp. An error is signaled, with interactive resolution
498     to synchronize either way, or do nothing.
499    
500 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
501     is now a continuable error.
502    
503     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
504     whose suffix is one of the ones cvs ignores by default.
505    
506 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
507     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
508     moves and deletions, and reconstruct the mapping accordingly; that is,
509     it remaps the new structure. This command uses inode numbers to identify
510     files; if a file is copied and then the original is deleted, that won't
511     be recognized as a move.
512    
513 kaz 1.53 Release 0.12, 2002-04-18:
514 kaz 1.51
515     Bugfix: remove was broken in 0.10, fixed now.
516    
517 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
518     ``. not known to Meta-CVS''.
519    
520 kaz 1.52 The checkout operation now can now populate an existing directory, including
521     the current working directory (mcvs co -d . modulename). Of course, the
522     target directory cannot be an existing Meta-CVS sandbox.
523     This is a useful feature, which allows sandboxes to blend with an
524     existing directory structure.
525    
526     Checkout now uses the same function for generating the sandbox
527     structure as does update. This is now necessary, because local files
528     can be clobbered by the checkout.
529    
530 kaz 1.50 Release 0.11, 2002-04-12:
531 kaz 1.46
532     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
533     from CVS/Root and passes it via -d. This is necessary because rtag does not
534     look at a local CVS subdirectory for this information, only the
535     -d option or the environment variable.
536    
537 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
538     what sticky tag the sandbox is updated to.
539    
540     Command for switching branches added (switch or sw).
541    
542     Merge detects that working copy is on non-branch tag and bails.
543 kaz 1.47
544 kaz 1.49 Absolute paths can now be specified as file arguments. These are
545     based from the root directory of the sandbox, not the actual filesystem root
546     directory.
547    
548 kaz 1.45 Release 0.10, 2002-04-03:
549 kaz 1.44
550     Automatic merging implemented. Branch is created using branch command,
551     and merging from another branch is done using simple merge command.
552     Meta-CVS maintains the tags to keep track of what has been merged
553     from what branch to what branch.
554 kaz 1.40
555     Bugfix: checkout -d foo bar was complaining about directory bar already
556     existing, even though it should only care about foo.
557    
558 kaz 1.41 The remove command now requires explicit -R option to recursively remove
559 kaz 1.42 a directory. It has more detailed error reporting.
560 kaz 1.41
561 kaz 1.43 The move command has better error reporting.
562    
563 kaz 1.39 Release 0.9, 2002-03-14:
564 kaz 1.37
565     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
566     (unless --nometa is specified, of course).
567 kaz 1.38
568     The mcvs filt command takes -r <revision> or -D <date> parameters.
569     This means to retrieve the MAP file as of the specified revision or
570     date and use that mapping to perform the filtering translation,
571     rather than using MAP-LOCAL.
572 kaz 1.39
573     The mcvs update command takes filename arguments now and also
574     supports the -p option.
575 kaz 1.37
576 kaz 1.36 Release 0.8, 2002-03-13:
577 kaz 1.28
578 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
579     listed as :ignore in MCVS/TYPES.
580    
581 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
582     as a directory (if it does not already exist and is a non-directory).
583    
584 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
585     directory, which is normally the same as the module name.
586    
587 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
588    
589 kaz 1.33 New global options --error-continue and --error-terminate to disable
590     interactive error handling in two different ways.
591    
592 kaz 1.32 Log level of many messages has changed; many messages have been
593     relegated to debug level.
594    
595 kaz 1.35 The import command now creates a .cvsignore file containing the name
596     MAP-LOCAL.
597    
598 kaz 1.24 Release 0.7, 2002-03-09:
599    
600 kaz 1.27 The import command collects a list of the file suffixes and brings up
601     a text editor to allow the user to edit their CVS keyword expansion
602     behavior. This information is kept in a new metafile called TYPES. The
603     add command also updates TYPES; it identifies any suffixes which are new,
604     and brings up an editor. The F- files now carry suffixes, which
605     simplifies interfacing with CVS, and also allows cvswrappers to work.
606    
607     Recursive add works (mcvs add -R ...).
608    
609     New command line option --nometa allows metafiles to be excluded from
610     diff, tag, and other commands; without the option they are inserted
611     into the list of files to be processed.
612 kaz 1.25
613 kaz 1.27 The commit option now takes an optional list of files or directories,
614     just like tag, diff, and others.
615 kaz 1.26
616 kaz 1.23 Release 0.6, 2002-02-16:
617 kaz 1.19
618 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
619 kaz 1.21
620 kaz 1.27 User can interactively select whether to clobber local files or leave
621     everything alone. Effects on the mapping file of a mcvs move are undone,
622     if the restructuring is rolled back, or raises a condition that leads
623     to termination.
624    
625     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
626     during import, and specifies the CVS keyword expansion mode for files
627     having given suffixes, and can also tell Meta-CVS to ignore certain files
628     when importing or adding.
629 kaz 1.22
630 kaz 1.18 Release 0.5, 2002-02-10:
631 kaz 1.14
632 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
633     sanity checks to prevent adds and moves from accidentally clobbering
634     local files. A rearranging gone bad can be rolled back. Effects
635     of a failed mcvs add can also be rolled back.
636 kaz 1.14
637 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
638 kaz 1.15
639 kaz 1.13 Release 0.4, 2002-02-04:
640 kaz 1.10
641 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
642     which ensures that multiple command lines are generated if necessary to
643     avoid surpassing the operating system limit on argument and environment
644     vector size. This is important when someone wants to diff or stat a
645     subdirectory, which requires Meta-CVS to pick out the individual files
646     at the CVS level.
647    
648     The tag, log, status and annotate commands are now available.
649    
650     The MAP file is sorted on F- file names now, not path names. This
651     improves merging, since files do not move within the file when
652     they are renamed.
653 kaz 1.12
654 kaz 1.5 Release 0.3, 2002-02-02:
655    
656 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
657     exit. The program properly indicates failed termination when it exits
658     due to an error condition.
659    
660     Corrections are made in the command line option processing. If z is an
661     option that takes an argument, and the argument is -zx, then x is
662     treated as the argument to the option. Long options arguments are
663     recognized properly, according to the --opt=arg convention. The option
664     processing is restructured. Most of the commands now take the
665     appropriate cvs command-specific options.
666    
667     The update algorithm performs dupe checking over the map, which could
668     happen during a merge.
669    
670     Some more bugfixing has been done to the move command. It was still not
671     handling right some cases of an unversioned file being clobbered. Also,
672     it wasn't renaming a directory containing just one file.
673    
674     I did some performance investigation for larger file sets, and
675     ended up rewriting the code that computes filesystem restructuring
676     changes and map duplicates.
677 kaz 1.5
678 kaz 1.4 Release 0.2, 2002-01-30:
679    
680 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
681     performs some filesystem tests so it does the right thing when a versioned
682     file is moved over a non-versioned file, or when a file is moved into
683     a directory not known to Meta-CVS. Factored out reading and writing of
684     map files into functions.
685 kaz 1.4
686 kaz 1.2 Release 0.1, 2002-01-28:
687    
688 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
689     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
690     mv command when copying a directory to an existing directory.
691 kaz 1.2
692     Release 0.0, 2002-01-27:
693 kaz 1.1
694 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
695     However, it is already usable in its present state and is being used for
696     version control by its author. If you can program in Common Lisp and would
697     like to help, take a look through the TODO file. Send me patches, ideas,
698     feature requests.

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