/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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

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