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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision 1.127 - (hide annotations)
Mon Oct 7 03:53:17 2002 UTC (11 years, 6 months ago) by kaz
Branch: MAIN
CVS Tags: mcvs-1-0-branch~branch-point, mcvs-0-97
Branch point for: mcvs-1-0-branch
Changes since 1.126: +1 -1 lines
Preparing for release 0.97.
1 kaz 1.115 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz 1.127 Release 0.97, 2002-10-06:
4 kaz 1.119
5     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
6     (www.cygwin.com). It still relies on hard links, which requires
7     Windows 2000 or XP, and the NTFS filesystem. It probably won't
8     work over FAT.
9 kaz 1.120
10     New --debug option for verbose output.
12     Cleaned up of error messages. Error messages don't specify prefixes like
13     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
14     ``mcvs:'' prefix when printing the messages in a situation when the error is
15     not continuable.
16 kaz 1.119
17 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
18     directories, effectively ignoring arguments that are regular files.
19 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
20 kaz 1.121
21 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
22     directory are no longer silent no-ops, but produce an error.
23 kaz 1.123
24 kaz 1.124 The remap command now preserves property lists, and picks up changes
25     in executable permission.
27     The grab command now notices when a file changes from having execute
28     permission to not having execute permission.
30 kaz 1.126 Operations on the path . now work in a partial sandbox.
32 kaz 1.118 Release 0.96, 2002-09-21:
33 kaz 1.110
34     The restore command was left broken during the change to the new
35     filemap format. It is now fixed.
37 kaz 1.111 The grab command now handles execute permission bits properly.
39 kaz 1.112 Some more commands have detailed help.
41 kaz 1.113 There is now a global option -i which specifies a script to be
42 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
43     instance suppose you have the following script and call it
44     list-matching:
45 kaz 1.113
46     #!/usr/local/bin/mcvs -i
47     (in-sandbox-root-dir
48 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
49 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
50 kaz 1.114 (dolist (entry mapping)
51     (with-slots (path raw-plist) entry
52 kaz 1.117 (when (funcall test-func raw-plist)
53 kaz 1.114 (format t "~a~%" path))))))
55     Then to list the names of files whose "importance" property is
56     a value greater than two, run:
58     ./list-matching '(lambda (plist)
59     (let ((imp (getf plist :importance)))
60     (and imp (> imp 2))))'
61 kaz 1.117
62     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
63     break as Meta-CVS is maintained. There is currently no published set of
64     stable interfaces.
65 kaz 1.113
66 kaz 1.109 Release 0.95, 2002-09-16:
67 kaz 1.104
68 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
69     or the linkkit directory; these have been removed. These materials
70     are available at every CLISP installation; install.sh now finds them
71     and uses them. Users of non-x86 machines ran into problems because of this
72     because linkkit/clisp.h contains architecture-dependent information.
73 kaz 1.104
74 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
75     in the map.
77 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
78     help'' command acts just like ``mcvs --help'' without any arguments. If given
79     an additional parameter which specifies a Meta-CVS command, it produces more
80     detailed documentation for that comand. Help exists already for a few
81     commands.
83 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
84     in beta. It is only five updates away from a 1.0 release.
85 kaz 1.106
86 kaz 1.103 Release 0.24, 2002-09-08:
87 kaz 1.98
88 kaz 1.99 The mapping entries for both symlinks and files have extensible property
89     lists now. These are stored in the optional fourth and fifth list elements,
90     respectively of the :FILE and :SYMLINK map entries.
92     Versioning of the execute permission of files is supported, represented as
93     the :EXEC property of a :FILE mapping entry.
94 kaz 1.98
95 kaz 1.100 Some lame syntax is provided for manipulating properties:
97 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
98 kaz 1.100
99     will set the property FOO to true, set the property BAR to false,
100     and remove the property BAZ, in the files main.c and list.c.
101     The execute permission is represented by the property EXEC.
103 kaz 1.97 Release 0.23, 2002-09-02:
104 kaz 1.95
105 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
106     changes into the mapping.
108     The grab command now figures out moved symlinks. Moved symlinks are those
109     whose pathname has changed, but which continue to point to the same object
110     (which may also have been moved).
111 kaz 1.95
112 kaz 1.94 Release 0.22, 2002-08-31:
113 kaz 1.93
114     Symbolic links are now versioned objects. The format of the MAP file
115     changes to accomodate this; the new Meta-CVS will read old MAP
116     files; when it writes it will write the new format. Old Meta-CVS won't
117     read the new format.
119     When a new module is created from an existing file tree, symbolic
120     links will be recognized and added. The add command will also add
121     symbolic links. Symbolic links can be renamed and moved; this does
122     nothing with their contents. They can point outside of the sandbox
123     using relative or absolute paths.
125 kaz 1.94 TODO:
127 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
128     retarget them; retargetting a link can be done manually by editing MCVS/MAP
129     and updating. Retargetting a link using the ln -s command, won't
130 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
132     The grab command does not yet compute symbolic link moves; a moved symbolic
133     link is treated as a remove and add. This will be easy to fix.
135     The remap command ignores symlinks.
136 kaz 1.93
137 kaz 1.92 Release 0.21, 2002-08-04:
138 kaz 1.88
139 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
140     argument, but using the -r command option. If no revision is specified with
141     -r, then a -A must be specified to make the grab go to the main trunk. This
142     is a safety feature, since grabbing foreign snapshots to the trunk is almost
143     always wrong, though it could be useful during backup recovery, or for fixing
144     mistakes.
146 kaz 1.91 The way operating system functions are targetted has changed. Instead of
147     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
148     has its own module for calling foreign functions. This module is portable;
149     it does not depend on the layout of glibc data structures. So Meta-CVS
150     is in theory now portable to other Unixes (provided they have /dev/urandom).
152 kaz 1.87 Release 0.20, 2002-07-27:
153 kaz 1.86
154     The commit command does a true global commit when given no file or directory
155     parameters, and not given the --metaonly option. This means commiting all
156     changes in the MCVS directory, even if they are in F-files that are not
157     currently mapped.
159 kaz 1.85 Release 0.19, 2002-07-16:
160 kaz 1.81
161     When moving multiple files or directories to a subdirectory, a
162     restart is now provided to skip over bad ones and continue.
164 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
165     files. There are no moves to deduce in that case.
167 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
168     rather than at the abstract root of the module.
170 kaz 1.83 Some other algorithmic improvements made.
171 kaz 1.82
172     The first few sections of a user guide have been written.
174 kaz 1.80 Release 0.18, 2002-07-07:
175 kaz 1.77
176 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
177     subdirectory of the project. Specifying a subdirectory results in a ``partial
178     sandbox'', whose root directory is the specified subdirectory of the larger
179     project. The rest of the project is ``invisible'' to that sandbox. A
180     subdirectory argument can also be given to mcvs grab, which will cause it to
181     integrate the new source tree against a subtree of the Meta-CVS project
182 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
183     that case you get an empty sandbox. Adding files to this sandbox will cause
184     the tree to exist in the project.
185 kaz 1.78
186 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
187     wrongly treating them as removes and adds.
189 kaz 1.76 Release 0.17, 2002-07-02:
190 kaz 1.71
191     The create command no longer takes a vendor branch. Instead the symbol
192     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
194 kaz 1.72 The grab command no longer does useless synchronization on files that
195     are about to be deleted.
197 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
198     that have no mapping.
200     New restore command; re-enters deleted files into the mapping, under
201     the ``lost+found'' directory, using their F- names as sandbox names.
202 kaz 1.73
203 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
204     working copy, it must not delete that working copy's MCVS sub directory.
206 kaz 1.70 Release 0.16, 2002-06-29:
207 kaz 1.67
208     Added new heuristics to grab command. Paths are analyzed to determine
209     move distance. Greater distances reduce the confidence in a move.
210     These rules help sort out grabs in a project where similar or
211     duplicate files are subject to parallel moves, the ambiguity being
212 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
213     now. Common words (those that appear in many files) are ignored when
214     comparing files.
215 kaz 1.67
216 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
217     up a little bit. Most reporting commands like log or diff no longer
218     operate on meta files by default; they must be explicitly told to do
219     so with --meta or --metaonly. Only the commit command implicitly includes
220     metafiles by default, and so if this is not wanted, --nometa must be
221     selected. The update command remains special; if it is given file
222     arguments, it does not include meta files. If given no arguments, it
223     does a global CVS up across the entire project.
225 kaz 1.66 Release 0.15, 2002-06-25:
226 kaz 1.61
227 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
228     paths; the result is a noticeable performance improvement in some commands
229     that process large numbers of files.
230 kaz 1.61
231 kaz 1.62 Renamed ``import'' command to ``create''.
233 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
234     broken :postorder support in directory walking function.
235 kaz 1.63
236 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
237     the checkout was directed to an existing directory.
239 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
240 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
241     It determines what files have been added and removed in the snapshot, and
242     tries to compute which removes and adds are actually moves. This is done by
243     analyzing the actual contents of the files according to a crude algorithm to
244     do fuzzy comparisons, so that even files which were modified as well as moved
245     are discovered.
246 kaz 1.64
247 kaz 1.60 Release 0.14, 2002-06-21:
248 kaz 1.59
249     Bugfix: mcvs add was broken for files that have no suffix, causing
250 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
251     handling was added.
252 kaz 1.59
253 kaz 1.58 Release 0.13, 2002-06-06:
254 kaz 1.55
255     Sandbox synchronization now handles the case of two files having
256     the same timestamp. An error is signaled, with interactive resolution
257     to synchronize either way, or do nothing.
259 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
260     is now a continuable error.
262     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
263     whose suffix is one of the ones cvs ignores by default.
265 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
266     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
267     moves and deletions, and reconstruct the mapping accordingly; that is,
268     it remaps the new structure. This command uses inode numbers to identify
269     files; if a file is copied and then the original is deleted, that won't
270     be recognized as a move.
272 kaz 1.53 Release 0.12, 2002-04-18:
273 kaz 1.51
274     Bugfix: remove was broken in 0.10, fixed now.
276 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
277     ``. not known to Meta-CVS''.
279 kaz 1.52 The checkout operation now can now populate an existing directory, including
280     the current working directory (mcvs co -d . modulename). Of course, the
281     target directory cannot be an existing Meta-CVS sandbox.
282     This is a useful feature, which allows sandboxes to blend with an
283     existing directory structure.
285     Checkout now uses the same function for generating the sandbox
286     structure as does update. This is now necessary, because local files
287     can be clobbered by the checkout.
289 kaz 1.50 Release 0.11, 2002-04-12:
290 kaz 1.46
291     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
292     from CVS/Root and passes it via -d. This is necessary because rtag does not
293     look at a local CVS subdirectory for this information, only the
294     -d option or the environment variable.
296 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
297     what sticky tag the sandbox is updated to.
299     Command for switching branches added (switch or sw).
301     Merge detects that working copy is on non-branch tag and bails.
302 kaz 1.47
303 kaz 1.49 Absolute paths can now be specified as file arguments. These are
304     based from the root directory of the sandbox, not the actual filesystem root
305     directory.
307 kaz 1.45 Release 0.10, 2002-04-03:
308 kaz 1.44
309     Automatic merging implemented. Branch is created using branch command,
310     and merging from another branch is done using simple merge command.
311     Meta-CVS maintains the tags to keep track of what has been merged
312     from what branch to what branch.
313 kaz 1.40
314     Bugfix: checkout -d foo bar was complaining about directory bar already
315     existing, even though it should only care about foo.
317 kaz 1.41 The remove command now requires explicit -R option to recursively remove
318 kaz 1.42 a directory. It has more detailed error reporting.
319 kaz 1.41
320 kaz 1.43 The move command has better error reporting.
322 kaz 1.39 Release 0.9, 2002-03-14:
323 kaz 1.37
324     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
325     (unless --nometa is specified, of course).
326 kaz 1.38
327     The mcvs filt command takes -r <revision> or -D <date> parameters.
328     This means to retrieve the MAP file as of the specified revision or
329     date and use that mapping to perform the filtering translation,
330     rather than using MAP-LOCAL.
331 kaz 1.39
332     The mcvs update command takes filename arguments now and also
333     supports the -p option.
334 kaz 1.37
335 kaz 1.36 Release 0.8, 2002-03-13:
336 kaz 1.28
337 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
338     listed as :ignore in MCVS/TYPES.
340 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
341     as a directory (if it does not already exist and is a non-directory).
343 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
344     directory, which is normally the same as the module name.
346 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
348 kaz 1.33 New global options --error-continue and --error-terminate to disable
349     interactive error handling in two different ways.
351 kaz 1.32 Log level of many messages has changed; many messages have been
352     relegated to debug level.
354 kaz 1.35 The import command now creates a .cvsignore file containing the name
355     MAP-LOCAL.
357 kaz 1.24 Release 0.7, 2002-03-09:
359 kaz 1.27 The import command collects a list of the file suffixes and brings up
360     a text editor to allow the user to edit their CVS keyword expansion
361     behavior. This information is kept in a new metafile called TYPES. The
362     add command also updates TYPES; it identifies any suffixes which are new,
363     and brings up an editor. The F- files now carry suffixes, which
364     simplifies interfacing with CVS, and also allows cvswrappers to work.
366     Recursive add works (mcvs add -R ...).
368     New command line option --nometa allows metafiles to be excluded from
369     diff, tag, and other commands; without the option they are inserted
370     into the list of files to be processed.
371 kaz 1.25
372 kaz 1.27 The commit option now takes an optional list of files or directories,
373     just like tag, diff, and others.
374 kaz 1.26
375 kaz 1.23 Release 0.6, 2002-02-16:
376 kaz 1.19
377 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
378 kaz 1.21
379 kaz 1.27 User can interactively select whether to clobber local files or leave
380     everything alone. Effects on the mapping file of a mcvs move are undone,
381     if the restructuring is rolled back, or raises a condition that leads
382     to termination.
384     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
385     during import, and specifies the CVS keyword expansion mode for files
386     having given suffixes, and can also tell Meta-CVS to ignore certain files
387     when importing or adding.
388 kaz 1.22
389 kaz 1.18 Release 0.5, 2002-02-10:
390 kaz 1.14
391 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
392     sanity checks to prevent adds and moves from accidentally clobbering
393     local files. A rearranging gone bad can be rolled back. Effects
394     of a failed mcvs add can also be rolled back.
395 kaz 1.14
396 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
397 kaz 1.15
398 kaz 1.13 Release 0.4, 2002-02-04:
399 kaz 1.10
400 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
401     which ensures that multiple command lines are generated if necessary to
402     avoid surpassing the operating system limit on argument and environment
403     vector size. This is important when someone wants to diff or stat a
404     subdirectory, which requires Meta-CVS to pick out the individual files
405     at the CVS level.
407     The tag, log, status and annotate commands are now available.
409     The MAP file is sorted on F- file names now, not path names. This
410     improves merging, since files do not move within the file when
411     they are renamed.
412 kaz 1.12
413 kaz 1.5 Release 0.3, 2002-02-02:
415 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
416     exit. The program properly indicates failed termination when it exits
417     due to an error condition.
419     Corrections are made in the command line option processing. If z is an
420     option that takes an argument, and the argument is -zx, then x is
421     treated as the argument to the option. Long options arguments are
422     recognized properly, according to the --opt=arg convention. The option
423     processing is restructured. Most of the commands now take the
424     appropriate cvs command-specific options.
426     The update algorithm performs dupe checking over the map, which could
427     happen during a merge.
429     Some more bugfixing has been done to the move command. It was still not
430     handling right some cases of an unversioned file being clobbered. Also,
431     it wasn't renaming a directory containing just one file.
433     I did some performance investigation for larger file sets, and
434     ended up rewriting the code that computes filesystem restructuring
435     changes and map duplicates.
436 kaz 1.5
437 kaz 1.4 Release 0.2, 2002-01-30:
439 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
440     performs some filesystem tests so it does the right thing when a versioned
441     file is moved over a non-versioned file, or when a file is moved into
442     a directory not known to Meta-CVS. Factored out reading and writing of
443     map files into functions.
444 kaz 1.4
445 kaz 1.2 Release 0.1, 2002-01-28:
447 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
448     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
449     mv command when copying a directory to an existing directory.
450 kaz 1.2
451     Release 0.0, 2002-01-27:
452 kaz 1.1
453 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
454     However, it is already usable in its present state and is being used for
455     version control by its author. If you can program in Common Lisp and would
456     like to help, take a look through the TODO file. Send me patches, ideas,
457     feature requests.

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