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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision 1.168 - (hide annotations)
Mon Apr 14 04:29:46 2003 UTC (11 years ago) by kaz
Branch: MAIN
Changes since 1.167: +2 -0 lines
Merging from mcvs-1-0-branch.

* code/grab.lisp (read-word-hash): Convert each token to a simple
string object. This can save a lot of memory when large numbers
of files have to be analyzed.
1 kaz 1.162 Release for Meta-CVS
2 kaz 1.1
3 kaz 1.142 Release ?.??, 200?-??-??:
5 kaz 1.162 All Lisp symbols are in a package.
6 kaz 1.142
7 kaz 1.166 Release 1.0.6, 2003-0?-??:
9     The create command detects the existence of text editor backup files (or
10     other junk) in the MCVS directory after the editor is invoked on the
11     TYPES file. The user is prompted regarding their removal. If these files are
12     not removed, cvs import will bring them into the repository.
14 kaz 1.167 When Meta-CVS has to split a large CVS command into two or more
15     invocations with shorter argument lists, it now does not stop when one of
16     these invocations is unsuccessful; it does all of them, and combines
17     their termination indications by a logical AND. There was a bug in this
18     logic also which caused, upon termination failure, a cvs command to be
19     repeated for the same list of files.
21     Synchronization logic has been revamped. Unnecessary synchronizations
22     have been removed, which will make some commands run faster.
23     Synchronizations now have specific directions; for instance before
24     a CVS commit or update, changes are pushed from the directory tree to the MCVS
25     directory only, and after the CVS operation, in the reverse direction only.
27     Meta-CVS will no longer re-create missing F- files by linking from the
28     directory tree. Doing this causes two problems. One is that if a user
29     manually removes a F- file and do ``mcvs up'', she wants CVS to fetch a clean
30     copy and push it into the tree. She does not want the file to be restored
31     from the tree prior to the CVS update. Secondly, sometimes CVS itself
32     removes files. If we re-create the files, CVS will consider them to
33     be ``in the way''.
35     Failures to read from the MAP or MAP-LOCAL files are treated as interactive,
36     continuable errors. By continuing, the user agrees that the behavior will
37     be as if an empty map were read.
39 kaz 1.168 The grab command uses less memory for performing move analysis.
41 kaz 1.165 Release 1.0.5, 2003-02-25:
42 kaz 1.163
43     Bugfix: some one-argument command line options of CVS must be
44     specifies as a single parameter, with no separation between the
45     option letter and the argument characters. For example:
47     cvs log -r rev-1::rev-2 # invalid
48     cvs log -rrev1::rev2 # correct
50     Meta-CVS accepts either syntax, but it was generating the first form
51     when calling CVS. Now, *all* one-letter options that have an argument
52     are formatted in the second manner.
54 kaz 1.164 Bugfix: one more waitpid() issue was fixed; on fast machines, under
55     Linux, it was observed that from time to time Meta-CVS would get
56     a -1/ECHILD when waiting for the CVS process.
58 kaz 1.162 Release 1.0.4, 2003-02-20:
60     Fix remaining occurences of the CVS ``No child processes'' abort
61     problem, affecting the list-branches command, merge command
62     and the -r option of the filt command.
64     Release 1.0.3, 2003-02-12:
66     ! THIS RELEASE IS WITHDRAWN. It was accidentally created from the
67     ! experimental main trunk of the Meta-CVS codebase, rather than
68     ! the 1.0 branch. But 1.0.4 does contain all of the changes
69     ! described here.
70 kaz 1.160
71     Fix for the CVS ``No child processes'' abort problem. It turns out
72     that CLISP sets the signal handling action for the SIGCHLD signal
73     to SIG_IGN, which is inherited by child processes across the
74     fork() and execvp() calls used in our mcvs_spawn() function.
75     We correct the problem by resetting the signal handler to SIG_DFL
76     just before executing the new process image.
77 kaz 1.161
78     New feature, --up option. The argument is a nonnegative integer value
79     (default is zero) which specifies how many sandbox nesting levels to
80     escape out of when locating the sandbox root. This helps work with
81     nested Meta-CVS sandboxes.
82 kaz 1.160
83 kaz 1.162 Release 1.0.2, 2003-02-10:
84 kaz 1.157
85     Bugfix in waitpid logic in the C library for running external processes;
86     we were not dealing with an interrupted waitpid.
88 kaz 1.158 Behavior of mcvs tag is changed: when there are no filename arguments,
89     the whole tree is tagged including the metafiles. In other words, it
90     now works like the commit command.
92 kaz 1.157 Release 1.0.1, 2003-01-30:
93 kaz 1.154
94     Hard link sync optimization: update of a subset of files, commit, and
95     other operations like log and diff don't need to synchronize all
96     hard links, just the ones operated on.
98 kaz 1.155 The merge and remerge commands support -k option for overriding
99     CVS keyword expansion mode.
101 kaz 1.156 Fixes to getcwd error handling.
102 kaz 1.157
103     Improvement in install.sh script's logic for locating CLISP installation
104     directory.
105 kaz 1.156
106 kaz 1.153 Release 1.0, 2003-01-01:
107 kaz 1.147
108 kaz 1.151 NOTE: It's not possible to upgrade to this release via mcvs-upgrade,
109     because it adds some new C functions to the Lisp executable.
111 kaz 1.147 Security fix: read-time evaluation was not suppressed when reading
112     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
113     was possible for Alice to check in something that would execute
114     arbitrary code on Bob's computer.
116 kaz 1.148 Optimization: use fork and exec to launch CVS rather than CLISP's
117     run-program function, which indirects through the shell interpreter.
118 kaz 1.153 (On Cygwin, the spawnvp function is used).
119 kaz 1.148
120 kaz 1.149 Performance fix: stat() was being called superfluously by the
121     hard synchronization code, twice for each file.
123 kaz 1.150 Build fix: install.sh works when CLISP executable is called ``lisp.exe'',
124     which is the case under Cygwin with newer CLISP releases.
126 kaz 1.146 Release 0.99, 2002-11-17:
127 kaz 1.135
128 kaz 1.140 New link command for creating symbolic links.
130 kaz 1.144 Global option -n (dry run---don't modify filesystem) is processed
131     internally now, not just passed to CVS.
133 kaz 1.135 Failure to invoke text editor is handled.
135 kaz 1.136 The -r option of filt is fixed; it has been broken since the change to the
136     new MAP format, because it was reading the raw map representation, not
137     passing it through the right conversion steps that are needed now.
139 kaz 1.138 Bugfix to purge and remap commands: they were fooled by CVS-generated
140     files in the MCVS/CVS directory. Specifically, files having F- names, and a
141     the suffix ,t.
143 kaz 1.141 Bugfix to add logic in directory restructuring: there was the possibility
144     of mistakingly taking a clobbered local file to be a new local version of
145     the added file, instead of replacing it. This could happen if the local
146     file had a future timestamp relative to the one coming from the repository.
148 kaz 1.143 The prop command does not synchronize or write out map if no options are
149     specified.
151 kaz 1.144 Help text added for move and branch commands. Help text for grab rewritten.
152 kaz 1.137
153 kaz 1.145 The CVSEDITOR and VISUAL environment variables are now checked, not
154     only EDITOR.
156 kaz 1.134 Release 0.98, 2002-10-13:
157 kaz 1.128
158 kaz 1.133 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
159     which could cause information loss if the two differ. It now reads from MAP
160     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
161     update operation invoked by prop, as before).
163     Invocation of external programs included in debug trace.
164 kaz 1.128
165     The filt command does not filter F- names if they are immediately preceded by
166     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
167     references to the actual F- links, rather than abstract references.
169 kaz 1.129 The update command now supports the -C option, to fetch the repository
170     copy, throwing away local changes. It also now honors the --metaonly
171     and --nometa options.
172 kaz 1.130
173     The export command has been added, for checking out documents without creating
174     a working copy (no MCVS directory in the root of the checkout).
175 kaz 1.131
176 kaz 1.133 The watch command has been added. Note that its syntax differs from that
177     of CVS.
178 kaz 1.132
179     The watchers, editors, edit, and unedit commands have been added.
180 kaz 1.134
181     A script called mcvs-upgrade is now included, and installs alongside the mcvs
182     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
183     giving users of binary distributions an easy way to upgrade from source
184     code.
186 kaz 1.127 Release 0.97, 2002-10-06:
187 kaz 1.119
188     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
189     (www.cygwin.com). It still relies on hard links, which requires
190     Windows 2000 or XP, and the NTFS filesystem. It probably won't
191     work over FAT.
192 kaz 1.120
193     New --debug option for verbose output.
195     Cleaned up of error messages. Error messages don't specify prefixes like
196     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
197     ``mcvs:'' prefix when printing the messages in a situation when the error is
198     not continuable.
199 kaz 1.119
200 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
201     directories, effectively ignoring arguments that are regular files.
202 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
203 kaz 1.121
204 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
205     directory are no longer silent no-ops, but produce an error.
206 kaz 1.123
207 kaz 1.124 The remap command now preserves property lists, and picks up changes
208     in executable permission.
210     The grab command now notices when a file changes from having execute
211     permission to not having execute permission.
213 kaz 1.126 Operations on the path . now work in a partial sandbox.
215 kaz 1.118 Release 0.96, 2002-09-21:
216 kaz 1.110
217     The restore command was left broken during the change to the new
218     filemap format. It is now fixed.
220 kaz 1.111 The grab command now handles execute permission bits properly.
222 kaz 1.112 Some more commands have detailed help.
224 kaz 1.113 There is now a global option -i which specifies a script to be
225 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
226     instance suppose you have the following script and call it
227     list-matching:
228 kaz 1.113
229     #!/usr/local/bin/mcvs -i
230     (in-sandbox-root-dir
231 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
232 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
233 kaz 1.114 (dolist (entry mapping)
234     (with-slots (path raw-plist) entry
235 kaz 1.117 (when (funcall test-func raw-plist)
236 kaz 1.114 (format t "~a~%" path))))))
238     Then to list the names of files whose "importance" property is
239     a value greater than two, run:
241     ./list-matching '(lambda (plist)
242     (let ((imp (getf plist :importance)))
243     (and imp (> imp 2))))'
244 kaz 1.117
245     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
246     break as Meta-CVS is maintained. There is currently no published set of
247     stable interfaces.
248 kaz 1.113
249 kaz 1.109 Release 0.95, 2002-09-16:
250 kaz 1.104
251 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
252     or the linkkit directory; these have been removed. These materials
253     are available at every CLISP installation; install.sh now finds them
254     and uses them. Users of non-x86 machines ran into problems because of this
255     because linkkit/clisp.h contains architecture-dependent information.
256 kaz 1.104
257 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
258     in the map.
260 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
261     help'' command acts just like ``mcvs --help'' without any arguments. If given
262     an additional parameter which specifies a Meta-CVS command, it produces more
263     detailed documentation for that comand. Help exists already for a few
264     commands.
266 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
267     in beta. It is only five updates away from a 1.0 release.
268 kaz 1.106
269 kaz 1.103 Release 0.24, 2002-09-08:
270 kaz 1.98
271 kaz 1.99 The mapping entries for both symlinks and files have extensible property
272     lists now. These are stored in the optional fourth and fifth list elements,
273     respectively of the :FILE and :SYMLINK map entries.
275     Versioning of the execute permission of files is supported, represented as
276     the :EXEC property of a :FILE mapping entry.
277 kaz 1.98
278 kaz 1.100 Some lame syntax is provided for manipulating properties:
280 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
281 kaz 1.100
282     will set the property FOO to true, set the property BAR to false,
283     and remove the property BAZ, in the files main.c and list.c.
284     The execute permission is represented by the property EXEC.
286 kaz 1.97 Release 0.23, 2002-09-02:
287 kaz 1.95
288 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
289     changes into the mapping.
291     The grab command now figures out moved symlinks. Moved symlinks are those
292     whose pathname has changed, but which continue to point to the same object
293     (which may also have been moved).
294 kaz 1.95
295 kaz 1.94 Release 0.22, 2002-08-31:
296 kaz 1.93
297     Symbolic links are now versioned objects. The format of the MAP file
298     changes to accomodate this; the new Meta-CVS will read old MAP
299     files; when it writes it will write the new format. Old Meta-CVS won't
300     read the new format.
302     When a new module is created from an existing file tree, symbolic
303     links will be recognized and added. The add command will also add
304     symbolic links. Symbolic links can be renamed and moved; this does
305     nothing with their contents. They can point outside of the sandbox
306     using relative or absolute paths.
308 kaz 1.94 TODO:
310 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
311     retarget them; retargetting a link can be done manually by editing MCVS/MAP
312     and updating. Retargetting a link using the ln -s command, won't
313 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
315     The grab command does not yet compute symbolic link moves; a moved symbolic
316     link is treated as a remove and add. This will be easy to fix.
318     The remap command ignores symlinks.
319 kaz 1.93
320 kaz 1.92 Release 0.21, 2002-08-04:
321 kaz 1.88
322 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
323     argument, but using the -r command option. If no revision is specified with
324     -r, then a -A must be specified to make the grab go to the main trunk. This
325     is a safety feature, since grabbing foreign snapshots to the trunk is almost
326     always wrong, though it could be useful during backup recovery, or for fixing
327     mistakes.
329 kaz 1.91 The way operating system functions are targetted has changed. Instead of
330     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
331     has its own module for calling foreign functions. This module is portable;
332     it does not depend on the layout of glibc data structures. So Meta-CVS
333     is in theory now portable to other Unixes (provided they have /dev/urandom).
335 kaz 1.87 Release 0.20, 2002-07-27:
336 kaz 1.86
337     The commit command does a true global commit when given no file or directory
338     parameters, and not given the --metaonly option. This means commiting all
339     changes in the MCVS directory, even if they are in F-files that are not
340     currently mapped.
342 kaz 1.85 Release 0.19, 2002-07-16:
343 kaz 1.81
344     When moving multiple files or directories to a subdirectory, a
345     restart is now provided to skip over bad ones and continue.
347 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
348     files. There are no moves to deduce in that case.
350 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
351     rather than at the abstract root of the module.
353 kaz 1.83 Some other algorithmic improvements made.
354 kaz 1.82
355     The first few sections of a user guide have been written.
357 kaz 1.80 Release 0.18, 2002-07-07:
358 kaz 1.77
359 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
360     subdirectory of the project. Specifying a subdirectory results in a ``partial
361     sandbox'', whose root directory is the specified subdirectory of the larger
362     project. The rest of the project is ``invisible'' to that sandbox. A
363     subdirectory argument can also be given to mcvs grab, which will cause it to
364     integrate the new source tree against a subtree of the Meta-CVS project
365 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
366     that case you get an empty sandbox. Adding files to this sandbox will cause
367     the tree to exist in the project.
368 kaz 1.78
369 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
370     wrongly treating them as removes and adds.
372 kaz 1.76 Release 0.17, 2002-07-02:
373 kaz 1.71
374     The create command no longer takes a vendor branch. Instead the symbol
375     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
377 kaz 1.72 The grab command no longer does useless synchronization on files that
378     are about to be deleted.
380 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
381     that have no mapping.
383     New restore command; re-enters deleted files into the mapping, under
384     the ``lost+found'' directory, using their F- names as sandbox names.
385 kaz 1.73
386 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
387     working copy, it must not delete that working copy's MCVS sub directory.
389 kaz 1.70 Release 0.16, 2002-06-29:
390 kaz 1.67
391     Added new heuristics to grab command. Paths are analyzed to determine
392     move distance. Greater distances reduce the confidence in a move.
393     These rules help sort out grabs in a project where similar or
394     duplicate files are subject to parallel moves, the ambiguity being
395 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
396     now. Common words (those that appear in many files) are ignored when
397     comparing files.
398 kaz 1.67
399 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
400     up a little bit. Most reporting commands like log or diff no longer
401     operate on meta files by default; they must be explicitly told to do
402     so with --meta or --metaonly. Only the commit command implicitly includes
403     metafiles by default, and so if this is not wanted, --nometa must be
404     selected. The update command remains special; if it is given file
405     arguments, it does not include meta files. If given no arguments, it
406     does a global CVS up across the entire project.
408 kaz 1.66 Release 0.15, 2002-06-25:
409 kaz 1.61
410 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
411     paths; the result is a noticeable performance improvement in some commands
412     that process large numbers of files.
413 kaz 1.61
414 kaz 1.62 Renamed ``import'' command to ``create''.
416 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
417     broken :postorder support in directory walking function.
418 kaz 1.63
419 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
420     the checkout was directed to an existing directory.
422 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
423 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
424     It determines what files have been added and removed in the snapshot, and
425     tries to compute which removes and adds are actually moves. This is done by
426     analyzing the actual contents of the files according to a crude algorithm to
427     do fuzzy comparisons, so that even files which were modified as well as moved
428     are discovered.
429 kaz 1.64
430 kaz 1.60 Release 0.14, 2002-06-21:
431 kaz 1.59
432     Bugfix: mcvs add was broken for files that have no suffix, causing
433 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
434     handling was added.
435 kaz 1.59
436 kaz 1.58 Release 0.13, 2002-06-06:
437 kaz 1.55
438     Sandbox synchronization now handles the case of two files having
439     the same timestamp. An error is signaled, with interactive resolution
440     to synchronize either way, or do nothing.
442 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
443     is now a continuable error.
445     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
446     whose suffix is one of the ones cvs ignores by default.
448 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
449     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
450     moves and deletions, and reconstruct the mapping accordingly; that is,
451     it remaps the new structure. This command uses inode numbers to identify
452     files; if a file is copied and then the original is deleted, that won't
453     be recognized as a move.
455 kaz 1.53 Release 0.12, 2002-04-18:
456 kaz 1.51
457     Bugfix: remove was broken in 0.10, fixed now.
459 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
460     ``. not known to Meta-CVS''.
462 kaz 1.52 The checkout operation now can now populate an existing directory, including
463     the current working directory (mcvs co -d . modulename). Of course, the
464     target directory cannot be an existing Meta-CVS sandbox.
465     This is a useful feature, which allows sandboxes to blend with an
466     existing directory structure.
468     Checkout now uses the same function for generating the sandbox
469     structure as does update. This is now necessary, because local files
470     can be clobbered by the checkout.
472 kaz 1.50 Release 0.11, 2002-04-12:
473 kaz 1.46
474     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
475     from CVS/Root and passes it via -d. This is necessary because rtag does not
476     look at a local CVS subdirectory for this information, only the
477     -d option or the environment variable.
479 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
480     what sticky tag the sandbox is updated to.
482     Command for switching branches added (switch or sw).
484     Merge detects that working copy is on non-branch tag and bails.
485 kaz 1.47
486 kaz 1.49 Absolute paths can now be specified as file arguments. These are
487     based from the root directory of the sandbox, not the actual filesystem root
488     directory.
490 kaz 1.45 Release 0.10, 2002-04-03:
491 kaz 1.44
492     Automatic merging implemented. Branch is created using branch command,
493     and merging from another branch is done using simple merge command.
494     Meta-CVS maintains the tags to keep track of what has been merged
495     from what branch to what branch.
496 kaz 1.40
497     Bugfix: checkout -d foo bar was complaining about directory bar already
498     existing, even though it should only care about foo.
500 kaz 1.41 The remove command now requires explicit -R option to recursively remove
501 kaz 1.42 a directory. It has more detailed error reporting.
502 kaz 1.41
503 kaz 1.43 The move command has better error reporting.
505 kaz 1.39 Release 0.9, 2002-03-14:
506 kaz 1.37
507     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
508     (unless --nometa is specified, of course).
509 kaz 1.38
510     The mcvs filt command takes -r <revision> or -D <date> parameters.
511     This means to retrieve the MAP file as of the specified revision or
512     date and use that mapping to perform the filtering translation,
513     rather than using MAP-LOCAL.
514 kaz 1.39
515     The mcvs update command takes filename arguments now and also
516     supports the -p option.
517 kaz 1.37
518 kaz 1.36 Release 0.8, 2002-03-13:
519 kaz 1.28
520 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
521     listed as :ignore in MCVS/TYPES.
523 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
524     as a directory (if it does not already exist and is a non-directory).
526 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
527     directory, which is normally the same as the module name.
529 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
531 kaz 1.33 New global options --error-continue and --error-terminate to disable
532     interactive error handling in two different ways.
534 kaz 1.32 Log level of many messages has changed; many messages have been
535     relegated to debug level.
537 kaz 1.35 The import command now creates a .cvsignore file containing the name
538     MAP-LOCAL.
540 kaz 1.24 Release 0.7, 2002-03-09:
542 kaz 1.27 The import command collects a list of the file suffixes and brings up
543     a text editor to allow the user to edit their CVS keyword expansion
544     behavior. This information is kept in a new metafile called TYPES. The
545     add command also updates TYPES; it identifies any suffixes which are new,
546     and brings up an editor. The F- files now carry suffixes, which
547     simplifies interfacing with CVS, and also allows cvswrappers to work.
549     Recursive add works (mcvs add -R ...).
551     New command line option --nometa allows metafiles to be excluded from
552     diff, tag, and other commands; without the option they are inserted
553     into the list of files to be processed.
554 kaz 1.25
555 kaz 1.27 The commit option now takes an optional list of files or directories,
556     just like tag, diff, and others.
557 kaz 1.26
558 kaz 1.23 Release 0.6, 2002-02-16:
559 kaz 1.19
560 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
561 kaz 1.21
562 kaz 1.27 User can interactively select whether to clobber local files or leave
563     everything alone. Effects on the mapping file of a mcvs move are undone,
564     if the restructuring is rolled back, or raises a condition that leads
565     to termination.
567     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
568     during import, and specifies the CVS keyword expansion mode for files
569     having given suffixes, and can also tell Meta-CVS to ignore certain files
570     when importing or adding.
571 kaz 1.22
572 kaz 1.18 Release 0.5, 2002-02-10:
573 kaz 1.14
574 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
575     sanity checks to prevent adds and moves from accidentally clobbering
576     local files. A rearranging gone bad can be rolled back. Effects
577     of a failed mcvs add can also be rolled back.
578 kaz 1.14
579 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
580 kaz 1.15
581 kaz 1.13 Release 0.4, 2002-02-04:
582 kaz 1.10
583 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
584     which ensures that multiple command lines are generated if necessary to
585     avoid surpassing the operating system limit on argument and environment
586     vector size. This is important when someone wants to diff or stat a
587     subdirectory, which requires Meta-CVS to pick out the individual files
588     at the CVS level.
590     The tag, log, status and annotate commands are now available.
592     The MAP file is sorted on F- file names now, not path names. This
593     improves merging, since files do not move within the file when
594     they are renamed.
595 kaz 1.12
596 kaz 1.5 Release 0.3, 2002-02-02:
598 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
599     exit. The program properly indicates failed termination when it exits
600     due to an error condition.
602     Corrections are made in the command line option processing. If z is an
603     option that takes an argument, and the argument is -zx, then x is
604     treated as the argument to the option. Long options arguments are
605     recognized properly, according to the --opt=arg convention. The option
606     processing is restructured. Most of the commands now take the
607     appropriate cvs command-specific options.
609     The update algorithm performs dupe checking over the map, which could
610     happen during a merge.
612     Some more bugfixing has been done to the move command. It was still not
613     handling right some cases of an unversioned file being clobbered. Also,
614     it wasn't renaming a directory containing just one file.
616     I did some performance investigation for larger file sets, and
617     ended up rewriting the code that computes filesystem restructuring
618     changes and map duplicates.
619 kaz 1.5
620 kaz 1.4 Release 0.2, 2002-01-30:
622 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
623     performs some filesystem tests so it does the right thing when a versioned
624     file is moved over a non-versioned file, or when a file is moved into
625     a directory not known to Meta-CVS. Factored out reading and writing of
626     map files into functions.
627 kaz 1.4
628 kaz 1.2 Release 0.1, 2002-01-28:
630 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
631     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
632     mv command when copying a directory to an existing directory.
633 kaz 1.2
634     Release 0.0, 2002-01-27:
635 kaz 1.1
636 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
637     However, it is already usable in its present state and is being used for
638     version control by its author. If you can program in Common Lisp and would
639     like to help, take a look through the TODO file. Send me patches, ideas,
640     feature requests.

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