/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Revision 1.127.2.65 - (hide annotations)
Wed Jan 28 16:17:08 2004 UTC (10 years, 2 months ago) by kaz
Branch: mcvs-1-0-branch
CVS Tags: mcvs-1-0-11
Changes since 1.127.2.64: +1 -1 lines
Releasing 1.0.11.
1 kaz 1.115 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz 1.127.2.65 Release 1.0.11, 2004-01-28:
4 kaz 1.127.2.63
5 kaz 1.127.2.64 Fixes breakage of list-branches command introduced in last release.
6    
7     Fixes failures in grab command when pulling new baseline over
8     partial sandbox. Renamed symlinks, and execute permissions of files
9     were being accessed using abstract instead of real path.
10 kaz 1.127.2.63
11 kaz 1.127.2.62 Release 1.0.10, 2004-01-09:
12    
13     Builds on CLISP 2.32. The lb command no longer produces bogus warning
14     when working copy is sticky to a version tag.
15    
16 kaz 1.127.2.61 Release 1.0.9, 2003-11-24:
17 kaz 1.127.2.59
18     Failures to open terminal for reasons other than non-existence
19     of the object are handled (e.g. ``no such device'', etc).
20    
21 kaz 1.127.2.60 The --nometa option now works properly in those commands that
22     operate on the whole project when no file arguments are given
23     (tag, update, commit). Also, these commands no longer implicitly
24     include the meta files when file arguments *are* given.
25     These files can be included explicitly with the --meta global option.
26    
27 kaz 1.127.2.58 Release 1.0.8, 2003-06-03:
28 kaz 1.127.2.55
29 kaz 1.127.2.56 The Cygwin /dev/tty problem is partially addressed. The program
30     won't fail if /dev does not exist, but emits a warning message,
31     and disables interactive error handling. The workaround is to use
32     ``mkdir /dev''. This is a CLISP issue; its OPEN function expects the
33     full path to a file to actually exist, but on Cygwin, there are fake
34     /dev/* paths even though /dev does not exist. If a real /dev directory
35     does in fact exist, it does not interfere with these magic paths.
36 kaz 1.127.2.55
37 kaz 1.127.2.57 The ``mcvs fi'' command no longer performs expansion on F- names
38     that are preceded by a slash.
39    
40 kaz 1.127.2.54 Release 1.0.7, 2003-04-23:
41 kaz 1.127.2.50
42 kaz 1.127.2.53 New commands sync-to-cvs and sync-from-cvs expose the hard link
43     synchronization algorithm.
44    
45 kaz 1.127.2.50 Revamped error recovery logic. To continue in an error situation now
46     consistently means ``take the bold action that may erase data''
47     or ``proceed in the most obvious way to finish the specified job''.
48 kaz 1.127.2.52 It never means ``roll back the operation and bail'', which was
49     confusing.
50 kaz 1.127.2.50
51 kaz 1.127.2.52 Termination is no longer unsafe; the `T' menu command, and the
52     equivalent --error-terminate global option perform all necessary
53     restoration and cleanup.
54    
55     Errors that have more information to print, like a list of files or
56     whatever, now indicate it in a standard way which translates to the
57     `I' menu command.
58 kaz 1.127.2.51
59     Chatter output goes to standard error rather than standard output,
60     as do all error messages.
61    
62     The interactive error menu now talks to the user using the controlling
63     tty, meaning that it will work even if the input or output of the
64 kaz 1.127.2.52 mcvs command are redirected. If no controlling tty is available,
65     then interactive error handling is disabled; the default behavior
66     is then like --error-terminate but can of course be overridden by
67     --error-continue.
68 kaz 1.127.2.51
69 kaz 1.127.2.49 Release 1.0.6, 2003-04-14:
70 kaz 1.127.2.44
71     The create command detects the existence of text editor backup files (or
72     other junk) in the MCVS directory after the editor is invoked on the
73     TYPES file. The user is prompted regarding their removal. If these files are
74     not removed, cvs import will bring them into the repository.
75    
76 kaz 1.127.2.45 When Meta-CVS has to split a large CVS command into two or more
77     invocations with shorter argument lists, it now does not stop when one of
78     these invocations is unsuccessful; it does all of them, and combines
79     their termination indications by a logical AND. There was a bug in this
80     logic also which caused, upon termination failure, a cvs command to be
81     repeated for the same list of files.
82    
83 kaz 1.127.2.46 Synchronization logic has been revamped. Unnecessary synchronizations
84     have been removed, which will make some commands run faster.
85     Synchronizations now have specific directions; for instance before
86     a CVS commit or update, changes are pushed from the directory tree to the MCVS
87     directory only, and after the CVS operation, in the reverse direction only.
88    
89     Meta-CVS will no longer re-create missing F- files by linking from the
90     directory tree. Doing this causes two problems. One is that if a user
91     manually removes a F- file and do ``mcvs up'', she wants CVS to fetch a clean
92     copy and push it into the tree. She does not want the file to be restored
93     from the tree prior to the CVS update. Secondly, sometimes CVS itself
94     removes files. If we re-create the files, CVS will consider them to
95     be ``in the way''.
96    
97 kaz 1.127.2.47 Failures to read from the MAP or MAP-LOCAL files are treated as interactive,
98     continuable errors. By continuing, the user agrees that the behavior will
99     be as if an empty map were read.
100    
101 kaz 1.127.2.48 The grab command uses less memory for performing move analysis.
102    
103 kaz 1.127.2.43 Release 1.0.5, 2003-02-25:
104 kaz 1.127.2.41
105     Bugfix: some one-argument command line options of CVS must be
106     specifies as a single parameter, with no separation between the
107     option letter and the argument characters. For example:
108    
109     cvs log -r rev-1::rev-2 # invalid
110     cvs log -rrev1::rev2 # correct
111    
112     Meta-CVS accepts either syntax, but it was generating the first form
113     when calling CVS. Now, *all* one-letter options that have an argument
114     are formatted in the second manner.
115    
116 kaz 1.127.2.42 Bugfix: one more waitpid() issue was fixed; on fast machines, under
117     Linux, it was observed that from time to time Meta-CVS would get
118     a -1/ECHILD when waiting for the CVS process.
119    
120 kaz 1.127.2.40 Release 1.0.4, 2003-02-20:
121    
122     Fix remaining occurences of the CVS ``No child processes'' abort
123     problem, affecting the list-branches command, merge command
124     and the -r option of the filt command.
125    
126     Release 1.0.3, 2003-02-12:
127    
128     ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
129     ! experimental main trunk of the Meta-CVS codebase, rather than
130     ! the 1.0 branch. But 1.0.4 does contain all of the changes
131     ! described here.
132 kaz 1.127.2.37
133     Fix for the CVS ``No child processes'' abort problem. It turns out
134     that CLISP sets the signal handling action for the SIGCHLD signal
135     to SIG_IGN, which is inherited by child processes across the
136     fork() and execvp() calls used in our mcvs_spawn() function.
137     We correct the problem by resetting the signal handler to SIG_DFL
138     just before executing the new process image.
139    
140 kaz 1.127.2.39 New feature, --up option. The argument is a nonnegative integer value
141     (default is zero) which specifies how many sandbox nesting levels to
142     escape out of when locating the sandbox root. This helps work with
143     nested Meta-CVS sandboxes.
144    
145 kaz 1.127.2.40 Release 1.0.2, 2003-02-10:
146 kaz 1.127.2.34
147     Bugfix in waitpid logic in the C library for running external processes;
148     we were not dealing with an interrupted waitpid.
149    
150 kaz 1.127.2.35 Behavior of mcvs tag is changed: when there are no filename arguments,
151     the whole tree is tagged including the metafiles. In other words, it
152     now works like the commit command.
153    
154 kaz 1.127.2.33 Release 1.0.1, 2003-01-30:
155 kaz 1.127.2.30
156     Hard link sync optimization: update of a subset of files, commit, and
157     other operations like log and diff don't need to synchronize all
158     hard links, just the ones operated on.
159    
160 kaz 1.127.2.31 The merge and remerge commands support -k option for overriding
161     CVS keyword expansion mode.
162    
163 kaz 1.127.2.32 Fixes to getcwd error handling.
164 kaz 1.127.2.33
165     Improvement in install.sh script's logic for locating CLISP installation
166     directory.
167 kaz 1.127.2.32
168 kaz 1.127.2.29 Release 1.0, 2003-01-01:
169 kaz 1.127.2.23
170 kaz 1.127.2.27 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
171     because it adds some new C functions to the Lisp executable.
172    
173 kaz 1.127.2.23 Security fix: read-time evaluation was not suppressed when reading
174     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
175     was possible for Alice to check in something that would execute
176     arbitrary code on Bob's computer.
177    
178 kaz 1.127.2.24 Optimization: use fork and exec to launch CVS rather than CLISP's
179     run-program function, which indirects through the shell interpreter.
180 kaz 1.127.2.29 (On Cygwin, the spawnvp function is used).
181 kaz 1.127.2.24
182 kaz 1.127.2.25 Performance fix: stat() was being called superfluously by the
183     hard synchronization code, twice for each file.
184    
185 kaz 1.127.2.26 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
186     which is the case under Cygwin with newer CLISP releases.
187    
188 kaz 1.127.2.22 Release 0.99, 2002-11-17:
189 kaz 1.127.2.11
190 kaz 1.127.2.16 New link command for creating symbolic links.
191    
192 kaz 1.127.2.20 Global option -n (dry run---don't modify filesystem) is processed
193     internally now, not just passed to CVS.
194    
195 kaz 1.127.2.11 Failure to invoke text editor is handled.
196    
197 kaz 1.127.2.12 The -r option of filt is fixed; it has been broken since the change to the
198     new MAP format, because it was reading the raw map representation, not
199     passing it through the right conversion steps that are needed now.
200    
201 kaz 1.127.2.14 Bugfix to purge and remap commands: they were fooled by CVS-generated
202     files in the MCVS/CVS directory. Specifically, files having F- names, and a
203     the suffix ,t.
204    
205 kaz 1.127.2.17 Bugfix to add logic in directory restructuring: there was the possibility
206     of mistakingly taking a clobbered local file to be a new local version of
207     the added file, instead of replacing it. This could happen if the local
208     file had a future timestamp relative to the one coming from the repository.
209    
210 kaz 1.127.2.18 The prop command does not synchronize or write out map if no options are
211     specified.
212    
213 kaz 1.127.2.19 Help text added for move and branch commands. Help text for grab rewritten.
214 kaz 1.127.2.13
215 kaz 1.127.2.21 The CVSEDITOR and VISUAL environment variables are now checked, not
216     only EDITOR.
217    
218 kaz 1.127.2.10 Release 0.98, 2002-10-13:
219 kaz 1.127.2.1
220 kaz 1.127.2.8 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
221     which could cause information loss if the two differ. It now reads from MAP
222     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
223     update operation invoked by prop, as before).
224    
225 kaz 1.127.2.7 Invocation of external programs included in debug trace.
226 kaz 1.127.2.1
227 kaz 1.127.2.2 The filt command does not filter F- names if they are immediately preceded by
228     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
229     references to the actual F- links, rather than abstract references.
230    
231 kaz 1.127.2.3 The update command now supports the -C option, to fetch the repository
232     copy, throwing away local changes. It also now honors the --metaonly
233     and --nometa options.
234 kaz 1.127.2.4
235     The export command has been added, for checking out documents without creating
236     a working copy (no MCVS directory in the root of the checkout).
237 kaz 1.127.2.5
238 kaz 1.127.2.7 The watch command has been added. Note that its syntax differs from that
239     of CVS.
240 kaz 1.127.2.6
241     The watchers, editors, edit, and unedit commands have been added.
242 kaz 1.127.2.9
243     A script called mcvs-upgrade is now included, and installs alongside the mcvs
244     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
245     giving users of binary distributions an easy way to upgrade from source
246     code.
247    
248 kaz 1.127 Release 0.97, 2002-10-06:
249 kaz 1.119
250     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
251     (www.cygwin.com). It still relies on hard links, which requires
252     Windows 2000 or XP, and the NTFS filesystem. It probably won't
253     work over FAT.
254 kaz 1.120
255     New --debug option for verbose output.
256    
257     Cleaned up of error messages. Error messages don't specify prefixes like
258     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
259     ``mcvs:'' prefix when printing the messages in a situation when the error is
260     not continuable.
261 kaz 1.119
262 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
263     directories, effectively ignoring arguments that are regular files.
264 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
265 kaz 1.121
266 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
267     directory are no longer silent no-ops, but produce an error.
268 kaz 1.123
269 kaz 1.124 The remap command now preserves property lists, and picks up changes
270     in executable permission.
271    
272     The grab command now notices when a file changes from having execute
273     permission to not having execute permission.
274    
275 kaz 1.126 Operations on the path . now work in a partial sandbox.
276    
277 kaz 1.118 Release 0.96, 2002-09-21:
278 kaz 1.110
279     The restore command was left broken during the change to the new
280     filemap format. It is now fixed.
281    
282 kaz 1.111 The grab command now handles execute permission bits properly.
283    
284 kaz 1.112 Some more commands have detailed help.
285    
286 kaz 1.113 There is now a global option -i which specifies a script to be
287 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
288     instance suppose you have the following script and call it
289     list-matching:
290 kaz 1.113
291     #!/usr/local/bin/mcvs -i
292     (in-sandbox-root-dir
293 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
294 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
295 kaz 1.114 (dolist (entry mapping)
296     (with-slots (path raw-plist) entry
297 kaz 1.117 (when (funcall test-func raw-plist)
298 kaz 1.114 (format t "~a~%" path))))))
299    
300     Then to list the names of files whose "importance" property is
301     a value greater than two, run:
302    
303     ./list-matching '(lambda (plist)
304     (let ((imp (getf plist :importance)))
305     (and imp (> imp 2))))'
306 kaz 1.117
307     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
308     break as Meta-CVS is maintained. There is currently no published set of
309     stable interfaces.
310 kaz 1.113
311 kaz 1.109 Release 0.95, 2002-09-16:
312 kaz 1.104
313 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
314     or the linkkit directory; these have been removed. These materials
315     are available at every CLISP installation; install.sh now finds them
316     and uses them. Users of non-x86 machines ran into problems because of this
317     because linkkit/clisp.h contains architecture-dependent information.
318 kaz 1.104
319 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
320     in the map.
321    
322 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
323     help'' command acts just like ``mcvs --help'' without any arguments. If given
324     an additional parameter which specifies a Meta-CVS command, it produces more
325     detailed documentation for that comand. Help exists already for a few
326     commands.
327    
328 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
329     in beta. It is only five updates away from a 1.0 release.
330 kaz 1.106
331 kaz 1.103 Release 0.24, 2002-09-08:
332 kaz 1.98
333 kaz 1.99 The mapping entries for both symlinks and files have extensible property
334     lists now. These are stored in the optional fourth and fifth list elements,
335     respectively of the :FILE and :SYMLINK map entries.
336    
337     Versioning of the execute permission of files is supported, represented as
338     the :EXEC property of a :FILE mapping entry.
339 kaz 1.98
340 kaz 1.100 Some lame syntax is provided for manipulating properties:
341    
342 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
343 kaz 1.100
344     will set the property FOO to true, set the property BAR to false,
345     and remove the property BAZ, in the files main.c and list.c.
346     The execute permission is represented by the property EXEC.
347    
348 kaz 1.97 Release 0.23, 2002-09-02:
349 kaz 1.95
350 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
351     changes into the mapping.
352    
353     The grab command now figures out moved symlinks. Moved symlinks are those
354     whose pathname has changed, but which continue to point to the same object
355     (which may also have been moved).
356 kaz 1.95
357 kaz 1.94 Release 0.22, 2002-08-31:
358 kaz 1.93
359     Symbolic links are now versioned objects. The format of the MAP file
360     changes to accomodate this; the new Meta-CVS will read old MAP
361     files; when it writes it will write the new format. Old Meta-CVS won't
362     read the new format.
363    
364     When a new module is created from an existing file tree, symbolic
365     links will be recognized and added. The add command will also add
366     symbolic links. Symbolic links can be renamed and moved; this does
367     nothing with their contents. They can point outside of the sandbox
368     using relative or absolute paths.
369    
370 kaz 1.94 TODO:
371    
372 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
373     retarget them; retargetting a link can be done manually by editing MCVS/MAP
374     and updating. Retargetting a link using the ln -s command, won't
375 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
376    
377     The grab command does not yet compute symbolic link moves; a moved symbolic
378     link is treated as a remove and add. This will be easy to fix.
379    
380     The remap command ignores symlinks.
381 kaz 1.93
382 kaz 1.92 Release 0.21, 2002-08-04:
383 kaz 1.88
384 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
385     argument, but using the -r command option. If no revision is specified with
386     -r, then a -A must be specified to make the grab go to the main trunk. This
387     is a safety feature, since grabbing foreign snapshots to the trunk is almost
388     always wrong, though it could be useful during backup recovery, or for fixing
389     mistakes.
390    
391 kaz 1.91 The way operating system functions are targetted has changed. Instead of
392     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
393     has its own module for calling foreign functions. This module is portable;
394     it does not depend on the layout of glibc data structures. So Meta-CVS
395     is in theory now portable to other Unixes (provided they have /dev/urandom).
396    
397 kaz 1.87 Release 0.20, 2002-07-27:
398 kaz 1.86
399     The commit command does a true global commit when given no file or directory
400     parameters, and not given the --metaonly option. This means commiting all
401     changes in the MCVS directory, even if they are in F-files that are not
402     currently mapped.
403    
404 kaz 1.85 Release 0.19, 2002-07-16:
405 kaz 1.81
406     When moving multiple files or directories to a subdirectory, a
407     restart is now provided to skip over bad ones and continue.
408    
409 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
410     files. There are no moves to deduce in that case.
411    
412 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
413     rather than at the abstract root of the module.
414    
415 kaz 1.83 Some other algorithmic improvements made.
416 kaz 1.82
417     The first few sections of a user guide have been written.
418    
419 kaz 1.80 Release 0.18, 2002-07-07:
420 kaz 1.77
421 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
422     subdirectory of the project. Specifying a subdirectory results in a ``partial
423     sandbox'', whose root directory is the specified subdirectory of the larger
424     project. The rest of the project is ``invisible'' to that sandbox. A
425     subdirectory argument can also be given to mcvs grab, which will cause it to
426     integrate the new source tree against a subtree of the Meta-CVS project
427 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
428     that case you get an empty sandbox. Adding files to this sandbox will cause
429     the tree to exist in the project.
430 kaz 1.78
431 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
432     wrongly treating them as removes and adds.
433    
434 kaz 1.76 Release 0.17, 2002-07-02:
435 kaz 1.71
436     The create command no longer takes a vendor branch. Instead the symbol
437     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
438    
439 kaz 1.72 The grab command no longer does useless synchronization on files that
440     are about to be deleted.
441    
442 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
443     that have no mapping.
444    
445     New restore command; re-enters deleted files into the mapping, under
446     the ``lost+found'' directory, using their F- names as sandbox names.
447 kaz 1.73
448 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
449     working copy, it must not delete that working copy's MCVS sub directory.
450    
451 kaz 1.70 Release 0.16, 2002-06-29:
452 kaz 1.67
453     Added new heuristics to grab command. Paths are analyzed to determine
454     move distance. Greater distances reduce the confidence in a move.
455     These rules help sort out grabs in a project where similar or
456     duplicate files are subject to parallel moves, the ambiguity being
457 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
458     now. Common words (those that appear in many files) are ignored when
459     comparing files.
460 kaz 1.67
461 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
462     up a little bit. Most reporting commands like log or diff no longer
463     operate on meta files by default; they must be explicitly told to do
464     so with --meta or --metaonly. Only the commit command implicitly includes
465     metafiles by default, and so if this is not wanted, --nometa must be
466     selected. The update command remains special; if it is given file
467     arguments, it does not include meta files. If given no arguments, it
468     does a global CVS up across the entire project.
469    
470 kaz 1.66 Release 0.15, 2002-06-25:
471 kaz 1.61
472 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
473     paths; the result is a noticeable performance improvement in some commands
474     that process large numbers of files.
475 kaz 1.61
476 kaz 1.62 Renamed ``import'' command to ``create''.
477    
478 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
479     broken :postorder support in directory walking function.
480 kaz 1.63
481 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
482     the checkout was directed to an existing directory.
483    
484 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
485 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
486     It determines what files have been added and removed in the snapshot, and
487     tries to compute which removes and adds are actually moves. This is done by
488     analyzing the actual contents of the files according to a crude algorithm to
489     do fuzzy comparisons, so that even files which were modified as well as moved
490     are discovered.
491 kaz 1.64
492 kaz 1.60 Release 0.14, 2002-06-21:
493 kaz 1.59
494     Bugfix: mcvs add was broken for files that have no suffix, causing
495 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
496     handling was added.
497 kaz 1.59
498 kaz 1.58 Release 0.13, 2002-06-06:
499 kaz 1.55
500     Sandbox synchronization now handles the case of two files having
501     the same timestamp. An error is signaled, with interactive resolution
502     to synchronize either way, or do nothing.
503    
504 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
505     is now a continuable error.
506    
507     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
508     whose suffix is one of the ones cvs ignores by default.
509    
510 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
511     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
512     moves and deletions, and reconstruct the mapping accordingly; that is,
513     it remaps the new structure. This command uses inode numbers to identify
514     files; if a file is copied and then the original is deleted, that won't
515     be recognized as a move.
516    
517 kaz 1.53 Release 0.12, 2002-04-18:
518 kaz 1.51
519     Bugfix: remove was broken in 0.10, fixed now.
520    
521 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
522     ``. not known to Meta-CVS''.
523    
524 kaz 1.52 The checkout operation now can now populate an existing directory, including
525     the current working directory (mcvs co -d . modulename). Of course, the
526     target directory cannot be an existing Meta-CVS sandbox.
527     This is a useful feature, which allows sandboxes to blend with an
528     existing directory structure.
529    
530     Checkout now uses the same function for generating the sandbox
531     structure as does update. This is now necessary, because local files
532     can be clobbered by the checkout.
533    
534 kaz 1.50 Release 0.11, 2002-04-12:
535 kaz 1.46
536     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
537     from CVS/Root and passes it via -d. This is necessary because rtag does not
538     look at a local CVS subdirectory for this information, only the
539     -d option or the environment variable.
540    
541 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
542     what sticky tag the sandbox is updated to.
543    
544     Command for switching branches added (switch or sw).
545    
546     Merge detects that working copy is on non-branch tag and bails.
547 kaz 1.47
548 kaz 1.49 Absolute paths can now be specified as file arguments. These are
549     based from the root directory of the sandbox, not the actual filesystem root
550     directory.
551    
552 kaz 1.45 Release 0.10, 2002-04-03:
553 kaz 1.44
554     Automatic merging implemented. Branch is created using branch command,
555     and merging from another branch is done using simple merge command.
556     Meta-CVS maintains the tags to keep track of what has been merged
557     from what branch to what branch.
558 kaz 1.40
559     Bugfix: checkout -d foo bar was complaining about directory bar already
560     existing, even though it should only care about foo.
561    
562 kaz 1.41 The remove command now requires explicit -R option to recursively remove
563 kaz 1.42 a directory. It has more detailed error reporting.
564 kaz 1.41
565 kaz 1.43 The move command has better error reporting.
566    
567 kaz 1.39 Release 0.9, 2002-03-14:
568 kaz 1.37
569     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
570     (unless --nometa is specified, of course).
571 kaz 1.38
572     The mcvs filt command takes -r <revision> or -D <date> parameters.
573     This means to retrieve the MAP file as of the specified revision or
574     date and use that mapping to perform the filtering translation,
575     rather than using MAP-LOCAL.
576 kaz 1.39
577     The mcvs update command takes filename arguments now and also
578     supports the -p option.
579 kaz 1.37
580 kaz 1.36 Release 0.8, 2002-03-13:
581 kaz 1.28
582 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
583     listed as :ignore in MCVS/TYPES.
584    
585 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
586     as a directory (if it does not already exist and is a non-directory).
587    
588 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
589     directory, which is normally the same as the module name.
590    
591 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
592    
593 kaz 1.33 New global options --error-continue and --error-terminate to disable
594     interactive error handling in two different ways.
595    
596 kaz 1.32 Log level of many messages has changed; many messages have been
597     relegated to debug level.
598    
599 kaz 1.35 The import command now creates a .cvsignore file containing the name
600     MAP-LOCAL.
601    
602 kaz 1.24 Release 0.7, 2002-03-09:
603    
604 kaz 1.27 The import command collects a list of the file suffixes and brings up
605     a text editor to allow the user to edit their CVS keyword expansion
606     behavior. This information is kept in a new metafile called TYPES. The
607     add command also updates TYPES; it identifies any suffixes which are new,
608     and brings up an editor. The F- files now carry suffixes, which
609     simplifies interfacing with CVS, and also allows cvswrappers to work.
610    
611     Recursive add works (mcvs add -R ...).
612    
613     New command line option --nometa allows metafiles to be excluded from
614     diff, tag, and other commands; without the option they are inserted
615     into the list of files to be processed.
616 kaz 1.25
617 kaz 1.27 The commit option now takes an optional list of files or directories,
618     just like tag, diff, and others.
619 kaz 1.26
620 kaz 1.23 Release 0.6, 2002-02-16:
621 kaz 1.19
622 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
623 kaz 1.21
624 kaz 1.27 User can interactively select whether to clobber local files or leave
625     everything alone. Effects on the mapping file of a mcvs move are undone,
626     if the restructuring is rolled back, or raises a condition that leads
627     to termination.
628    
629     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
630     during import, and specifies the CVS keyword expansion mode for files
631     having given suffixes, and can also tell Meta-CVS to ignore certain files
632     when importing or adding.
633 kaz 1.22
634 kaz 1.18 Release 0.5, 2002-02-10:
635 kaz 1.14
636 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
637     sanity checks to prevent adds and moves from accidentally clobbering
638     local files. A rearranging gone bad can be rolled back. Effects
639     of a failed mcvs add can also be rolled back.
640 kaz 1.14
641 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
642 kaz 1.15
643 kaz 1.13 Release 0.4, 2002-02-04:
644 kaz 1.10
645 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
646     which ensures that multiple command lines are generated if necessary to
647     avoid surpassing the operating system limit on argument and environment
648     vector size. This is important when someone wants to diff or stat a
649     subdirectory, which requires Meta-CVS to pick out the individual files
650     at the CVS level.
651    
652     The tag, log, status and annotate commands are now available.
653    
654     The MAP file is sorted on F- file names now, not path names. This
655     improves merging, since files do not move within the file when
656     they are renamed.
657 kaz 1.12
658 kaz 1.5 Release 0.3, 2002-02-02:
659    
660 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
661     exit. The program properly indicates failed termination when it exits
662     due to an error condition.
663    
664     Corrections are made in the command line option processing. If z is an
665     option that takes an argument, and the argument is -zx, then x is
666     treated as the argument to the option. Long options arguments are
667     recognized properly, according to the --opt=arg convention. The option
668     processing is restructured. Most of the commands now take the
669     appropriate cvs command-specific options.
670    
671     The update algorithm performs dupe checking over the map, which could
672     happen during a merge.
673    
674     Some more bugfixing has been done to the move command. It was still not
675     handling right some cases of an unversioned file being clobbered. Also,
676     it wasn't renaming a directory containing just one file.
677    
678     I did some performance investigation for larger file sets, and
679     ended up rewriting the code that computes filesystem restructuring
680     changes and map duplicates.
681 kaz 1.5
682 kaz 1.4 Release 0.2, 2002-01-30:
683    
684 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
685     performs some filesystem tests so it does the right thing when a versioned
686     file is moved over a non-versioned file, or when a file is moved into
687     a directory not known to Meta-CVS. Factored out reading and writing of
688     map files into functions.
689 kaz 1.4
690 kaz 1.2 Release 0.1, 2002-01-28:
691    
692 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
693     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
694     mv command when copying a directory to an existing directory.
695 kaz 1.2
696     Release 0.0, 2002-01-27:
697 kaz 1.1
698 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
699     However, it is already usable in its present state and is being used for
700     version control by its author. If you can program in Common Lisp and would
701     like to help, take a look through the TODO file. Send me patches, ideas,
702     feature requests.

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