/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Revision 1.175 - (hide annotations)
Thu May 1 05:40:54 2003 UTC (10 years, 11 months ago) by kaz
Branch: MAIN
Changes since 1.174: +7 -2 lines
Merging from mcvs-1-0-branch.

* code/generic.lisp (mcvs-generic): The after-synchronization
was going in both directions rather than just MCVS -> tree.

* code/mcvs-main.lisp (mcvs-execute): If not able to open controlling
tty, emit some warning messages that interactive error handling is
disabled. This alerts users to problems, like missing /dev directory
on Cygwin.
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 1.174 Release 1.0.8, 2003-0?-??:
8    
9 kaz 1.175 The Cygwin /dev/tty problem is partially addressed. The program
10     won't fail if /dev does not exist, but emits a warning message,
11     and disables interactive error handling. The workaround is to use
12     ``mkdir /dev''. This is a CLISP issue; its OPEN function expects the
13     full path to a file to actually exist, but on Cygwin, there are fake
14     /dev/* paths even though /dev does not exist. If a real /dev directory
15     does in fact exist, it does not interfere with these magic paths.
16 kaz 1.174
17     Release 1.0.7, 2003-04-23:
18 kaz 1.170
19 kaz 1.173 New commands sync-to-cvs and sync-from-cvs expose the hard link
20     synchronization algorithm.
21    
22 kaz 1.170 Revamped error recovery logic. To continue in an error situation now
23     consistently means ``take the bold action that may erase data''
24     or ``proceed in the most obvious way to finish the specified job''.
25 kaz 1.172 It never means ``roll back the operation and bail'', which was
26     confusing.
27 kaz 1.170
28 kaz 1.172 Termination is no longer unsafe; the `T' menu command, and the
29     equivalent --error-terminate global option perform all necessary
30     restoration and cleanup.
31    
32     Errors that have more information to print, like a list of files or
33     whatever, now indicate it in a standard way which translates to the
34     `I' menu command.
35 kaz 1.171
36     Chatter output goes to standard error rather than standard output,
37     as do all error messages.
38    
39     The interactive error menu now talks to the user using the controlling
40     tty, meaning that it will work even if the input or output of the
41 kaz 1.172 mcvs command are redirected. If no controlling tty is available,
42     then interactive error handling is disabled; the default behavior
43     is then like --error-terminate but can of course be overridden by
44     --error-continue.
45 kaz 1.171
46 kaz 1.169 Release 1.0.6, 2003-04-14:
47 kaz 1.166
48     The create command detects the existence of text editor backup files (or
49     other junk) in the MCVS directory after the editor is invoked on the
50     TYPES file. The user is prompted regarding their removal. If these files are
51     not removed, cvs import will bring them into the repository.
52    
53 kaz 1.167 When Meta-CVS has to split a large CVS command into two or more
54     invocations with shorter argument lists, it now does not stop when one of
55     these invocations is unsuccessful; it does all of them, and combines
56     their termination indications by a logical AND. There was a bug in this
57     logic also which caused, upon termination failure, a cvs command to be
58     repeated for the same list of files.
59    
60     Synchronization logic has been revamped. Unnecessary synchronizations
61     have been removed, which will make some commands run faster.
62     Synchronizations now have specific directions; for instance before
63     a CVS commit or update, changes are pushed from the directory tree to the MCVS
64     directory only, and after the CVS operation, in the reverse direction only.
65    
66     Meta-CVS will no longer re-create missing F- files by linking from the
67     directory tree. Doing this causes two problems. One is that if a user
68     manually removes a F- file and do ``mcvs up'', she wants CVS to fetch a clean
69     copy and push it into the tree. She does not want the file to be restored
70     from the tree prior to the CVS update. Secondly, sometimes CVS itself
71     removes files. If we re-create the files, CVS will consider them to
72     be ``in the way''.
73    
74     Failures to read from the MAP or MAP-LOCAL files are treated as interactive,
75     continuable errors. By continuing, the user agrees that the behavior will
76     be as if an empty map were read.
77    
78 kaz 1.168 The grab command uses less memory for performing move analysis.
79    
80 kaz 1.165 Release 1.0.5, 2003-02-25:
81 kaz 1.163
82     Bugfix: some one-argument command line options of CVS must be
83     specifies as a single parameter, with no separation between the
84     option letter and the argument characters. For example:
85    
86     cvs log -r rev-1::rev-2 # invalid
87     cvs log -rrev1::rev2 # correct
88    
89     Meta-CVS accepts either syntax, but it was generating the first form
90     when calling CVS. Now, *all* one-letter options that have an argument
91     are formatted in the second manner.
92    
93 kaz 1.164 Bugfix: one more waitpid() issue was fixed; on fast machines, under
94     Linux, it was observed that from time to time Meta-CVS would get
95     a -1/ECHILD when waiting for the CVS process.
96    
97 kaz 1.162 Release 1.0.4, 2003-02-20:
98    
99     Fix remaining occurences of the CVS ``No child processes'' abort
100     problem, affecting the list-branches command, merge command
101     and the -r option of the filt command.
102    
103     Release 1.0.3, 2003-02-12:
104    
105     ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
106     ! experimental main trunk of the Meta-CVS codebase, rather than
107     ! the 1.0 branch. But 1.0.4 does contain all of the changes
108     ! described here.
109 kaz 1.160
110     Fix for the CVS ``No child processes'' abort problem. It turns out
111     that CLISP sets the signal handling action for the SIGCHLD signal
112     to SIG_IGN, which is inherited by child processes across the
113     fork() and execvp() calls used in our mcvs_spawn() function.
114     We correct the problem by resetting the signal handler to SIG_DFL
115     just before executing the new process image.
116 kaz 1.161
117     New feature, --up option. The argument is a nonnegative integer value
118     (default is zero) which specifies how many sandbox nesting levels to
119     escape out of when locating the sandbox root. This helps work with
120     nested Meta-CVS sandboxes.
121 kaz 1.160
122 kaz 1.162 Release 1.0.2, 2003-02-10:
123 kaz 1.157
124     Bugfix in waitpid logic in the C library for running external processes;
125     we were not dealing with an interrupted waitpid.
126    
127 kaz 1.158 Behavior of mcvs tag is changed: when there are no filename arguments,
128     the whole tree is tagged including the metafiles. In other words, it
129     now works like the commit command.
130    
131 kaz 1.157 Release 1.0.1, 2003-01-30:
132 kaz 1.154
133     Hard link sync optimization: update of a subset of files, commit, and
134     other operations like log and diff don't need to synchronize all
135     hard links, just the ones operated on.
136    
137 kaz 1.155 The merge and remerge commands support -k option for overriding
138     CVS keyword expansion mode.
139    
140 kaz 1.156 Fixes to getcwd error handling.
141 kaz 1.157
142     Improvement in install.sh script's logic for locating CLISP installation
143     directory.
144 kaz 1.156
145 kaz 1.153 Release 1.0, 2003-01-01:
146 kaz 1.147
147 kaz 1.151 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
148     because it adds some new C functions to the Lisp executable.
149    
150 kaz 1.147 Security fix: read-time evaluation was not suppressed when reading
151     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
152     was possible for Alice to check in something that would execute
153     arbitrary code on Bob's computer.
154    
155 kaz 1.148 Optimization: use fork and exec to launch CVS rather than CLISP's
156     run-program function, which indirects through the shell interpreter.
157 kaz 1.153 (On Cygwin, the spawnvp function is used).
158 kaz 1.148
159 kaz 1.149 Performance fix: stat() was being called superfluously by the
160     hard synchronization code, twice for each file.
161    
162 kaz 1.150 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
163     which is the case under Cygwin with newer CLISP releases.
164    
165 kaz 1.146 Release 0.99, 2002-11-17:
166 kaz 1.135
167 kaz 1.140 New link command for creating symbolic links.
168    
169 kaz 1.144 Global option -n (dry run---don't modify filesystem) is processed
170     internally now, not just passed to CVS.
171    
172 kaz 1.135 Failure to invoke text editor is handled.
173    
174 kaz 1.136 The -r option of filt is fixed; it has been broken since the change to the
175     new MAP format, because it was reading the raw map representation, not
176     passing it through the right conversion steps that are needed now.
177    
178 kaz 1.138 Bugfix to purge and remap commands: they were fooled by CVS-generated
179     files in the MCVS/CVS directory. Specifically, files having F- names, and a
180     the suffix ,t.
181    
182 kaz 1.141 Bugfix to add logic in directory restructuring: there was the possibility
183     of mistakingly taking a clobbered local file to be a new local version of
184     the added file, instead of replacing it. This could happen if the local
185     file had a future timestamp relative to the one coming from the repository.
186    
187 kaz 1.143 The prop command does not synchronize or write out map if no options are
188     specified.
189    
190 kaz 1.144 Help text added for move and branch commands. Help text for grab rewritten.
191 kaz 1.137
192 kaz 1.145 The CVSEDITOR and VISUAL environment variables are now checked, not
193     only EDITOR.
194    
195 kaz 1.134 Release 0.98, 2002-10-13:
196 kaz 1.128
197 kaz 1.133 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
198     which could cause information loss if the two differ. It now reads from MAP
199     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
200     update operation invoked by prop, as before).
201    
202     Invocation of external programs included in debug trace.
203 kaz 1.128
204     The filt command does not filter F- names if they are immediately preceded by
205     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
206     references to the actual F- links, rather than abstract references.
207    
208 kaz 1.129 The update command now supports the -C option, to fetch the repository
209     copy, throwing away local changes. It also now honors the --metaonly
210     and --nometa options.
211 kaz 1.130
212     The export command has been added, for checking out documents without creating
213     a working copy (no MCVS directory in the root of the checkout).
214 kaz 1.131
215 kaz 1.133 The watch command has been added. Note that its syntax differs from that
216     of CVS.
217 kaz 1.132
218     The watchers, editors, edit, and unedit commands have been added.
219 kaz 1.134
220     A script called mcvs-upgrade is now included, and installs alongside the mcvs
221     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
222     giving users of binary distributions an easy way to upgrade from source
223     code.
224    
225 kaz 1.127 Release 0.97, 2002-10-06:
226 kaz 1.119
227     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
228     (www.cygwin.com). It still relies on hard links, which requires
229     Windows 2000 or XP, and the NTFS filesystem. It probably won't
230     work over FAT.
231 kaz 1.120
232     New --debug option for verbose output.
233    
234     Cleaned up of error messages. Error messages don't specify prefixes like
235     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
236     ``mcvs:'' prefix when printing the messages in a situation when the error is
237     not continuable.
238 kaz 1.119
239 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
240     directories, effectively ignoring arguments that are regular files.
241 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
242 kaz 1.121
243 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
244     directory are no longer silent no-ops, but produce an error.
245 kaz 1.123
246 kaz 1.124 The remap command now preserves property lists, and picks up changes
247     in executable permission.
248    
249     The grab command now notices when a file changes from having execute
250     permission to not having execute permission.
251    
252 kaz 1.126 Operations on the path . now work in a partial sandbox.
253    
254 kaz 1.118 Release 0.96, 2002-09-21:
255 kaz 1.110
256     The restore command was left broken during the change to the new
257     filemap format. It is now fixed.
258    
259 kaz 1.111 The grab command now handles execute permission bits properly.
260    
261 kaz 1.112 Some more commands have detailed help.
262    
263 kaz 1.113 There is now a global option -i which specifies a script to be
264 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
265     instance suppose you have the following script and call it
266     list-matching:
267 kaz 1.113
268     #!/usr/local/bin/mcvs -i
269     (in-sandbox-root-dir
270 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
271 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
272 kaz 1.114 (dolist (entry mapping)
273     (with-slots (path raw-plist) entry
274 kaz 1.117 (when (funcall test-func raw-plist)
275 kaz 1.114 (format t "~a~%" path))))))
276    
277     Then to list the names of files whose "importance" property is
278     a value greater than two, run:
279    
280     ./list-matching '(lambda (plist)
281     (let ((imp (getf plist :importance)))
282     (and imp (> imp 2))))'
283 kaz 1.117
284     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
285     break as Meta-CVS is maintained. There is currently no published set of
286     stable interfaces.
287 kaz 1.113
288 kaz 1.109 Release 0.95, 2002-09-16:
289 kaz 1.104
290 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
291     or the linkkit directory; these have been removed. These materials
292     are available at every CLISP installation; install.sh now finds them
293     and uses them. Users of non-x86 machines ran into problems because of this
294     because linkkit/clisp.h contains architecture-dependent information.
295 kaz 1.104
296 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
297     in the map.
298    
299 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
300     help'' command acts just like ``mcvs --help'' without any arguments. If given
301     an additional parameter which specifies a Meta-CVS command, it produces more
302     detailed documentation for that comand. Help exists already for a few
303     commands.
304    
305 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
306     in beta. It is only five updates away from a 1.0 release.
307 kaz 1.106
308 kaz 1.103 Release 0.24, 2002-09-08:
309 kaz 1.98
310 kaz 1.99 The mapping entries for both symlinks and files have extensible property
311     lists now. These are stored in the optional fourth and fifth list elements,
312     respectively of the :FILE and :SYMLINK map entries.
313    
314     Versioning of the execute permission of files is supported, represented as
315     the :EXEC property of a :FILE mapping entry.
316 kaz 1.98
317 kaz 1.100 Some lame syntax is provided for manipulating properties:
318    
319 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
320 kaz 1.100
321     will set the property FOO to true, set the property BAR to false,
322     and remove the property BAZ, in the files main.c and list.c.
323     The execute permission is represented by the property EXEC.
324    
325 kaz 1.97 Release 0.23, 2002-09-02:
326 kaz 1.95
327 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
328     changes into the mapping.
329    
330     The grab command now figures out moved symlinks. Moved symlinks are those
331     whose pathname has changed, but which continue to point to the same object
332     (which may also have been moved).
333 kaz 1.95
334 kaz 1.94 Release 0.22, 2002-08-31:
335 kaz 1.93
336     Symbolic links are now versioned objects. The format of the MAP file
337     changes to accomodate this; the new Meta-CVS will read old MAP
338     files; when it writes it will write the new format. Old Meta-CVS won't
339     read the new format.
340    
341     When a new module is created from an existing file tree, symbolic
342     links will be recognized and added. The add command will also add
343     symbolic links. Symbolic links can be renamed and moved; this does
344     nothing with their contents. They can point outside of the sandbox
345     using relative or absolute paths.
346    
347 kaz 1.94 TODO:
348    
349 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
350     retarget them; retargetting a link can be done manually by editing MCVS/MAP
351     and updating. Retargetting a link using the ln -s command, won't
352 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
353    
354     The grab command does not yet compute symbolic link moves; a moved symbolic
355     link is treated as a remove and add. This will be easy to fix.
356    
357     The remap command ignores symlinks.
358 kaz 1.93
359 kaz 1.92 Release 0.21, 2002-08-04:
360 kaz 1.88
361 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
362     argument, but using the -r command option. If no revision is specified with
363     -r, then a -A must be specified to make the grab go to the main trunk. This
364     is a safety feature, since grabbing foreign snapshots to the trunk is almost
365     always wrong, though it could be useful during backup recovery, or for fixing
366     mistakes.
367    
368 kaz 1.91 The way operating system functions are targetted has changed. Instead of
369     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
370     has its own module for calling foreign functions. This module is portable;
371     it does not depend on the layout of glibc data structures. So Meta-CVS
372     is in theory now portable to other Unixes (provided they have /dev/urandom).
373    
374 kaz 1.87 Release 0.20, 2002-07-27:
375 kaz 1.86
376     The commit command does a true global commit when given no file or directory
377     parameters, and not given the --metaonly option. This means commiting all
378     changes in the MCVS directory, even if they are in F-files that are not
379     currently mapped.
380    
381 kaz 1.85 Release 0.19, 2002-07-16:
382 kaz 1.81
383     When moving multiple files or directories to a subdirectory, a
384     restart is now provided to skip over bad ones and continue.
385    
386 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
387     files. There are no moves to deduce in that case.
388    
389 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
390     rather than at the abstract root of the module.
391    
392 kaz 1.83 Some other algorithmic improvements made.
393 kaz 1.82
394     The first few sections of a user guide have been written.
395    
396 kaz 1.80 Release 0.18, 2002-07-07:
397 kaz 1.77
398 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
399     subdirectory of the project. Specifying a subdirectory results in a ``partial
400     sandbox'', whose root directory is the specified subdirectory of the larger
401     project. The rest of the project is ``invisible'' to that sandbox. A
402     subdirectory argument can also be given to mcvs grab, which will cause it to
403     integrate the new source tree against a subtree of the Meta-CVS project
404 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
405     that case you get an empty sandbox. Adding files to this sandbox will cause
406     the tree to exist in the project.
407 kaz 1.78
408 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
409     wrongly treating them as removes and adds.
410    
411 kaz 1.76 Release 0.17, 2002-07-02:
412 kaz 1.71
413     The create command no longer takes a vendor branch. Instead the symbol
414     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
415    
416 kaz 1.72 The grab command no longer does useless synchronization on files that
417     are about to be deleted.
418    
419 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
420     that have no mapping.
421    
422     New restore command; re-enters deleted files into the mapping, under
423     the ``lost+found'' directory, using their F- names as sandbox names.
424 kaz 1.73
425 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
426     working copy, it must not delete that working copy's MCVS sub directory.
427    
428 kaz 1.70 Release 0.16, 2002-06-29:
429 kaz 1.67
430     Added new heuristics to grab command. Paths are analyzed to determine
431     move distance. Greater distances reduce the confidence in a move.
432     These rules help sort out grabs in a project where similar or
433     duplicate files are subject to parallel moves, the ambiguity being
434 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
435     now. Common words (those that appear in many files) are ignored when
436     comparing files.
437 kaz 1.67
438 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
439     up a little bit. Most reporting commands like log or diff no longer
440     operate on meta files by default; they must be explicitly told to do
441     so with --meta or --metaonly. Only the commit command implicitly includes
442     metafiles by default, and so if this is not wanted, --nometa must be
443     selected. The update command remains special; if it is given file
444     arguments, it does not include meta files. If given no arguments, it
445     does a global CVS up across the entire project.
446    
447 kaz 1.66 Release 0.15, 2002-06-25:
448 kaz 1.61
449 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
450     paths; the result is a noticeable performance improvement in some commands
451     that process large numbers of files.
452 kaz 1.61
453 kaz 1.62 Renamed ``import'' command to ``create''.
454    
455 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
456     broken :postorder support in directory walking function.
457 kaz 1.63
458 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
459     the checkout was directed to an existing directory.
460    
461 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
462 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
463     It determines what files have been added and removed in the snapshot, and
464     tries to compute which removes and adds are actually moves. This is done by
465     analyzing the actual contents of the files according to a crude algorithm to
466     do fuzzy comparisons, so that even files which were modified as well as moved
467     are discovered.
468 kaz 1.64
469 kaz 1.60 Release 0.14, 2002-06-21:
470 kaz 1.59
471     Bugfix: mcvs add was broken for files that have no suffix, causing
472 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
473     handling was added.
474 kaz 1.59
475 kaz 1.58 Release 0.13, 2002-06-06:
476 kaz 1.55
477     Sandbox synchronization now handles the case of two files having
478     the same timestamp. An error is signaled, with interactive resolution
479     to synchronize either way, or do nothing.
480    
481 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
482     is now a continuable error.
483    
484     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
485     whose suffix is one of the ones cvs ignores by default.
486    
487 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
488     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
489     moves and deletions, and reconstruct the mapping accordingly; that is,
490     it remaps the new structure. This command uses inode numbers to identify
491     files; if a file is copied and then the original is deleted, that won't
492     be recognized as a move.
493    
494 kaz 1.53 Release 0.12, 2002-04-18:
495 kaz 1.51
496     Bugfix: remove was broken in 0.10, fixed now.
497    
498 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
499     ``. not known to Meta-CVS''.
500    
501 kaz 1.52 The checkout operation now can now populate an existing directory, including
502     the current working directory (mcvs co -d . modulename). Of course, the
503     target directory cannot be an existing Meta-CVS sandbox.
504     This is a useful feature, which allows sandboxes to blend with an
505     existing directory structure.
506    
507     Checkout now uses the same function for generating the sandbox
508     structure as does update. This is now necessary, because local files
509     can be clobbered by the checkout.
510    
511 kaz 1.50 Release 0.11, 2002-04-12:
512 kaz 1.46
513     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
514     from CVS/Root and passes it via -d. This is necessary because rtag does not
515     look at a local CVS subdirectory for this information, only the
516     -d option or the environment variable.
517    
518 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
519     what sticky tag the sandbox is updated to.
520    
521     Command for switching branches added (switch or sw).
522    
523     Merge detects that working copy is on non-branch tag and bails.
524 kaz 1.47
525 kaz 1.49 Absolute paths can now be specified as file arguments. These are
526     based from the root directory of the sandbox, not the actual filesystem root
527     directory.
528    
529 kaz 1.45 Release 0.10, 2002-04-03:
530 kaz 1.44
531     Automatic merging implemented. Branch is created using branch command,
532     and merging from another branch is done using simple merge command.
533     Meta-CVS maintains the tags to keep track of what has been merged
534     from what branch to what branch.
535 kaz 1.40
536     Bugfix: checkout -d foo bar was complaining about directory bar already
537     existing, even though it should only care about foo.
538    
539 kaz 1.41 The remove command now requires explicit -R option to recursively remove
540 kaz 1.42 a directory. It has more detailed error reporting.
541 kaz 1.41
542 kaz 1.43 The move command has better error reporting.
543    
544 kaz 1.39 Release 0.9, 2002-03-14:
545 kaz 1.37
546     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
547     (unless --nometa is specified, of course).
548 kaz 1.38
549     The mcvs filt command takes -r <revision> or -D <date> parameters.
550     This means to retrieve the MAP file as of the specified revision or
551     date and use that mapping to perform the filtering translation,
552     rather than using MAP-LOCAL.
553 kaz 1.39
554     The mcvs update command takes filename arguments now and also
555     supports the -p option.
556 kaz 1.37
557 kaz 1.36 Release 0.8, 2002-03-13:
558 kaz 1.28
559 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
560     listed as :ignore in MCVS/TYPES.
561    
562 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
563     as a directory (if it does not already exist and is a non-directory).
564    
565 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
566     directory, which is normally the same as the module name.
567    
568 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
569    
570 kaz 1.33 New global options --error-continue and --error-terminate to disable
571     interactive error handling in two different ways.
572    
573 kaz 1.32 Log level of many messages has changed; many messages have been
574     relegated to debug level.
575    
576 kaz 1.35 The import command now creates a .cvsignore file containing the name
577     MAP-LOCAL.
578    
579 kaz 1.24 Release 0.7, 2002-03-09:
580    
581 kaz 1.27 The import command collects a list of the file suffixes and brings up
582     a text editor to allow the user to edit their CVS keyword expansion
583     behavior. This information is kept in a new metafile called TYPES. The
584     add command also updates TYPES; it identifies any suffixes which are new,
585     and brings up an editor. The F- files now carry suffixes, which
586     simplifies interfacing with CVS, and also allows cvswrappers to work.
587    
588     Recursive add works (mcvs add -R ...).
589    
590     New command line option --nometa allows metafiles to be excluded from
591     diff, tag, and other commands; without the option they are inserted
592     into the list of files to be processed.
593 kaz 1.25
594 kaz 1.27 The commit option now takes an optional list of files or directories,
595     just like tag, diff, and others.
596 kaz 1.26
597 kaz 1.23 Release 0.6, 2002-02-16:
598 kaz 1.19
599 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
600 kaz 1.21
601 kaz 1.27 User can interactively select whether to clobber local files or leave
602     everything alone. Effects on the mapping file of a mcvs move are undone,
603     if the restructuring is rolled back, or raises a condition that leads
604     to termination.
605    
606     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
607     during import, and specifies the CVS keyword expansion mode for files
608     having given suffixes, and can also tell Meta-CVS to ignore certain files
609     when importing or adding.
610 kaz 1.22
611 kaz 1.18 Release 0.5, 2002-02-10:
612 kaz 1.14
613 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
614     sanity checks to prevent adds and moves from accidentally clobbering
615     local files. A rearranging gone bad can be rolled back. Effects
616     of a failed mcvs add can also be rolled back.
617 kaz 1.14
618 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
619 kaz 1.15
620 kaz 1.13 Release 0.4, 2002-02-04:
621 kaz 1.10
622 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
623     which ensures that multiple command lines are generated if necessary to
624     avoid surpassing the operating system limit on argument and environment
625     vector size. This is important when someone wants to diff or stat a
626     subdirectory, which requires Meta-CVS to pick out the individual files
627     at the CVS level.
628    
629     The tag, log, status and annotate commands are now available.
630    
631     The MAP file is sorted on F- file names now, not path names. This
632     improves merging, since files do not move within the file when
633     they are renamed.
634 kaz 1.12
635 kaz 1.5 Release 0.3, 2002-02-02:
636    
637 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
638     exit. The program properly indicates failed termination when it exits
639     due to an error condition.
640    
641     Corrections are made in the command line option processing. If z is an
642     option that takes an argument, and the argument is -zx, then x is
643     treated as the argument to the option. Long options arguments are
644     recognized properly, according to the --opt=arg convention. The option
645     processing is restructured. Most of the commands now take the
646     appropriate cvs command-specific options.
647    
648     The update algorithm performs dupe checking over the map, which could
649     happen during a merge.
650    
651     Some more bugfixing has been done to the move command. It was still not
652     handling right some cases of an unversioned file being clobbered. Also,
653     it wasn't renaming a directory containing just one file.
654    
655     I did some performance investigation for larger file sets, and
656     ended up rewriting the code that computes filesystem restructuring
657     changes and map duplicates.
658 kaz 1.5
659 kaz 1.4 Release 0.2, 2002-01-30:
660    
661 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
662     performs some filesystem tests so it does the right thing when a versioned
663     file is moved over a non-versioned file, or when a file is moved into
664     a directory not known to Meta-CVS. Factored out reading and writing of
665     map files into functions.
666 kaz 1.4
667 kaz 1.2 Release 0.1, 2002-01-28:
668    
669 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
670     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
671     mv command when copying a directory to an existing directory.
672 kaz 1.2
673     Release 0.0, 2002-01-27:
674 kaz 1.1
675 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
676     However, it is already usable in its present state and is being used for
677     version control by its author. If you can program in Common Lisp and would
678     like to help, take a look through the TODO file. Send me patches, ideas,
679     feature requests.

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