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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Mon Oct 14 01:49:40 2002 UTC (11 years, 6 months ago) by kaz
Branch: mcvs-1-0-branch
Changes since +5 -0 lines
* code/prop.lisp (mcvs-prop): Read *mcvs-map*, not *mcvs-map-local*.
1 kaz 1.115 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz Release 0.98, 2002-10-??:
5 kaz The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
6     which could cause information loss if the two differ. It now reads from MAP
7     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
8     update operation invoked by prop, as before).
10 kaz Invocation of external programs included in debug trace.
11 kaz
12 kaz The filt command does not filter F- names if they are immediately preceded by
13     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
14     references to the actual F- links, rather than abstract references.
16 kaz The update command now supports the -C option, to fetch the repository
17     copy, throwing away local changes. It also now honors the --metaonly
18     and --nometa options.
19 kaz
20     The export command has been added, for checking out documents without creating
21     a working copy (no MCVS directory in the root of the checkout).
22 kaz
23 kaz The watch command has been added. Note that its syntax differs from that
24     of CVS.
25 kaz
26     The watchers, editors, edit, and unedit commands have been added.
27 kaz
28 kaz 1.127 Release 0.97, 2002-10-06:
29 kaz 1.119
30     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
31     (www.cygwin.com). It still relies on hard links, which requires
32     Windows 2000 or XP, and the NTFS filesystem. It probably won't
33     work over FAT.
34 kaz 1.120
35     New --debug option for verbose output.
37     Cleaned up of error messages. Error messages don't specify prefixes like
38     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
39     ``mcvs:'' prefix when printing the messages in a situation when the error is
40     not continuable.
41 kaz 1.119
42 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
43     directories, effectively ignoring arguments that are regular files.
44 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
45 kaz 1.121
46 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
47     directory are no longer silent no-ops, but produce an error.
48 kaz 1.123
49 kaz 1.124 The remap command now preserves property lists, and picks up changes
50     in executable permission.
52     The grab command now notices when a file changes from having execute
53     permission to not having execute permission.
55 kaz 1.126 Operations on the path . now work in a partial sandbox.
57 kaz 1.118 Release 0.96, 2002-09-21:
58 kaz 1.110
59     The restore command was left broken during the change to the new
60     filemap format. It is now fixed.
62 kaz 1.111 The grab command now handles execute permission bits properly.
64 kaz 1.112 Some more commands have detailed help.
66 kaz 1.113 There is now a global option -i which specifies a script to be
67 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
68     instance suppose you have the following script and call it
69     list-matching:
70 kaz 1.113
71     #!/usr/local/bin/mcvs -i
72     (in-sandbox-root-dir
73 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
74 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
75 kaz 1.114 (dolist (entry mapping)
76     (with-slots (path raw-plist) entry
77 kaz 1.117 (when (funcall test-func raw-plist)
78 kaz 1.114 (format t "~a~%" path))))))
80     Then to list the names of files whose "importance" property is
81     a value greater than two, run:
83     ./list-matching '(lambda (plist)
84     (let ((imp (getf plist :importance)))
85     (and imp (> imp 2))))'
86 kaz 1.117
87     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
88     break as Meta-CVS is maintained. There is currently no published set of
89     stable interfaces.
90 kaz 1.113
91 kaz 1.109 Release 0.95, 2002-09-16:
92 kaz 1.104
93 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
94     or the linkkit directory; these have been removed. These materials
95     are available at every CLISP installation; install.sh now finds them
96     and uses them. Users of non-x86 machines ran into problems because of this
97     because linkkit/clisp.h contains architecture-dependent information.
98 kaz 1.104
99 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
100     in the map.
102 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
103     help'' command acts just like ``mcvs --help'' without any arguments. If given
104     an additional parameter which specifies a Meta-CVS command, it produces more
105     detailed documentation for that comand. Help exists already for a few
106     commands.
108 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
109     in beta. It is only five updates away from a 1.0 release.
110 kaz 1.106
111 kaz 1.103 Release 0.24, 2002-09-08:
112 kaz 1.98
113 kaz 1.99 The mapping entries for both symlinks and files have extensible property
114     lists now. These are stored in the optional fourth and fifth list elements,
115     respectively of the :FILE and :SYMLINK map entries.
117     Versioning of the execute permission of files is supported, represented as
118     the :EXEC property of a :FILE mapping entry.
119 kaz 1.98
120 kaz 1.100 Some lame syntax is provided for manipulating properties:
122 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
123 kaz 1.100
124     will set the property FOO to true, set the property BAR to false,
125     and remove the property BAZ, in the files main.c and list.c.
126     The execute permission is represented by the property EXEC.
128 kaz 1.97 Release 0.23, 2002-09-02:
129 kaz 1.95
130 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
131     changes into the mapping.
133     The grab command now figures out moved symlinks. Moved symlinks are those
134     whose pathname has changed, but which continue to point to the same object
135     (which may also have been moved).
136 kaz 1.95
137 kaz 1.94 Release 0.22, 2002-08-31:
138 kaz 1.93
139     Symbolic links are now versioned objects. The format of the MAP file
140     changes to accomodate this; the new Meta-CVS will read old MAP
141     files; when it writes it will write the new format. Old Meta-CVS won't
142     read the new format.
144     When a new module is created from an existing file tree, symbolic
145     links will be recognized and added. The add command will also add
146     symbolic links. Symbolic links can be renamed and moved; this does
147     nothing with their contents. They can point outside of the sandbox
148     using relative or absolute paths.
150 kaz 1.94 TODO:
152 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
153     retarget them; retargetting a link can be done manually by editing MCVS/MAP
154     and updating. Retargetting a link using the ln -s command, won't
155 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
157     The grab command does not yet compute symbolic link moves; a moved symbolic
158     link is treated as a remove and add. This will be easy to fix.
160     The remap command ignores symlinks.
161 kaz 1.93
162 kaz 1.92 Release 0.21, 2002-08-04:
163 kaz 1.88
164 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
165     argument, but using the -r command option. If no revision is specified with
166     -r, then a -A must be specified to make the grab go to the main trunk. This
167     is a safety feature, since grabbing foreign snapshots to the trunk is almost
168     always wrong, though it could be useful during backup recovery, or for fixing
169     mistakes.
171 kaz 1.91 The way operating system functions are targetted has changed. Instead of
172     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
173     has its own module for calling foreign functions. This module is portable;
174     it does not depend on the layout of glibc data structures. So Meta-CVS
175     is in theory now portable to other Unixes (provided they have /dev/urandom).
177 kaz 1.87 Release 0.20, 2002-07-27:
178 kaz 1.86
179     The commit command does a true global commit when given no file or directory
180     parameters, and not given the --metaonly option. This means commiting all
181     changes in the MCVS directory, even if they are in F-files that are not
182     currently mapped.
184 kaz 1.85 Release 0.19, 2002-07-16:
185 kaz 1.81
186     When moving multiple files or directories to a subdirectory, a
187     restart is now provided to skip over bad ones and continue.
189 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
190     files. There are no moves to deduce in that case.
192 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
193     rather than at the abstract root of the module.
195 kaz 1.83 Some other algorithmic improvements made.
196 kaz 1.82
197     The first few sections of a user guide have been written.
199 kaz 1.80 Release 0.18, 2002-07-07:
200 kaz 1.77
201 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
202     subdirectory of the project. Specifying a subdirectory results in a ``partial
203     sandbox'', whose root directory is the specified subdirectory of the larger
204     project. The rest of the project is ``invisible'' to that sandbox. A
205     subdirectory argument can also be given to mcvs grab, which will cause it to
206     integrate the new source tree against a subtree of the Meta-CVS project
207 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
208     that case you get an empty sandbox. Adding files to this sandbox will cause
209     the tree to exist in the project.
210 kaz 1.78
211 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
212     wrongly treating them as removes and adds.
214 kaz 1.76 Release 0.17, 2002-07-02:
215 kaz 1.71
216     The create command no longer takes a vendor branch. Instead the symbol
217     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
219 kaz 1.72 The grab command no longer does useless synchronization on files that
220     are about to be deleted.
222 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
223     that have no mapping.
225     New restore command; re-enters deleted files into the mapping, under
226     the ``lost+found'' directory, using their F- names as sandbox names.
227 kaz 1.73
228 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
229     working copy, it must not delete that working copy's MCVS sub directory.
231 kaz 1.70 Release 0.16, 2002-06-29:
232 kaz 1.67
233     Added new heuristics to grab command. Paths are analyzed to determine
234     move distance. Greater distances reduce the confidence in a move.
235     These rules help sort out grabs in a project where similar or
236     duplicate files are subject to parallel moves, the ambiguity being
237 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
238     now. Common words (those that appear in many files) are ignored when
239     comparing files.
240 kaz 1.67
241 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
242     up a little bit. Most reporting commands like log or diff no longer
243     operate on meta files by default; they must be explicitly told to do
244     so with --meta or --metaonly. Only the commit command implicitly includes
245     metafiles by default, and so if this is not wanted, --nometa must be
246     selected. The update command remains special; if it is given file
247     arguments, it does not include meta files. If given no arguments, it
248     does a global CVS up across the entire project.
250 kaz 1.66 Release 0.15, 2002-06-25:
251 kaz 1.61
252 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
253     paths; the result is a noticeable performance improvement in some commands
254     that process large numbers of files.
255 kaz 1.61
256 kaz 1.62 Renamed ``import'' command to ``create''.
258 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
259     broken :postorder support in directory walking function.
260 kaz 1.63
261 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
262     the checkout was directed to an existing directory.
264 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
265 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
266     It determines what files have been added and removed in the snapshot, and
267     tries to compute which removes and adds are actually moves. This is done by
268     analyzing the actual contents of the files according to a crude algorithm to
269     do fuzzy comparisons, so that even files which were modified as well as moved
270     are discovered.
271 kaz 1.64
272 kaz 1.60 Release 0.14, 2002-06-21:
273 kaz 1.59
274     Bugfix: mcvs add was broken for files that have no suffix, causing
275 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
276     handling was added.
277 kaz 1.59
278 kaz 1.58 Release 0.13, 2002-06-06:
279 kaz 1.55
280     Sandbox synchronization now handles the case of two files having
281     the same timestamp. An error is signaled, with interactive resolution
282     to synchronize either way, or do nothing.
284 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
285     is now a continuable error.
287     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
288     whose suffix is one of the ones cvs ignores by default.
290 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
291     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
292     moves and deletions, and reconstruct the mapping accordingly; that is,
293     it remaps the new structure. This command uses inode numbers to identify
294     files; if a file is copied and then the original is deleted, that won't
295     be recognized as a move.
297 kaz 1.53 Release 0.12, 2002-04-18:
298 kaz 1.51
299     Bugfix: remove was broken in 0.10, fixed now.
301 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
302     ``. not known to Meta-CVS''.
304 kaz 1.52 The checkout operation now can now populate an existing directory, including
305     the current working directory (mcvs co -d . modulename). Of course, the
306     target directory cannot be an existing Meta-CVS sandbox.
307     This is a useful feature, which allows sandboxes to blend with an
308     existing directory structure.
310     Checkout now uses the same function for generating the sandbox
311     structure as does update. This is now necessary, because local files
312     can be clobbered by the checkout.
314 kaz 1.50 Release 0.11, 2002-04-12:
315 kaz 1.46
316     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
317     from CVS/Root and passes it via -d. This is necessary because rtag does not
318     look at a local CVS subdirectory for this information, only the
319     -d option or the environment variable.
321 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
322     what sticky tag the sandbox is updated to.
324     Command for switching branches added (switch or sw).
326     Merge detects that working copy is on non-branch tag and bails.
327 kaz 1.47
328 kaz 1.49 Absolute paths can now be specified as file arguments. These are
329     based from the root directory of the sandbox, not the actual filesystem root
330     directory.
332 kaz 1.45 Release 0.10, 2002-04-03:
333 kaz 1.44
334     Automatic merging implemented. Branch is created using branch command,
335     and merging from another branch is done using simple merge command.
336     Meta-CVS maintains the tags to keep track of what has been merged
337     from what branch to what branch.
338 kaz 1.40
339     Bugfix: checkout -d foo bar was complaining about directory bar already
340     existing, even though it should only care about foo.
342 kaz 1.41 The remove command now requires explicit -R option to recursively remove
343 kaz 1.42 a directory. It has more detailed error reporting.
344 kaz 1.41
345 kaz 1.43 The move command has better error reporting.
347 kaz 1.39 Release 0.9, 2002-03-14:
348 kaz 1.37
349     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
350     (unless --nometa is specified, of course).
351 kaz 1.38
352     The mcvs filt command takes -r <revision> or -D <date> parameters.
353     This means to retrieve the MAP file as of the specified revision or
354     date and use that mapping to perform the filtering translation,
355     rather than using MAP-LOCAL.
356 kaz 1.39
357     The mcvs update command takes filename arguments now and also
358     supports the -p option.
359 kaz 1.37
360 kaz 1.36 Release 0.8, 2002-03-13:
361 kaz 1.28
362 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
363     listed as :ignore in MCVS/TYPES.
365 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
366     as a directory (if it does not already exist and is a non-directory).
368 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
369     directory, which is normally the same as the module name.
371 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
373 kaz 1.33 New global options --error-continue and --error-terminate to disable
374     interactive error handling in two different ways.
376 kaz 1.32 Log level of many messages has changed; many messages have been
377     relegated to debug level.
379 kaz 1.35 The import command now creates a .cvsignore file containing the name
380     MAP-LOCAL.
382 kaz 1.24 Release 0.7, 2002-03-09:
384 kaz 1.27 The import command collects a list of the file suffixes and brings up
385     a text editor to allow the user to edit their CVS keyword expansion
386     behavior. This information is kept in a new metafile called TYPES. The
387     add command also updates TYPES; it identifies any suffixes which are new,
388     and brings up an editor. The F- files now carry suffixes, which
389     simplifies interfacing with CVS, and also allows cvswrappers to work.
391     Recursive add works (mcvs add -R ...).
393     New command line option --nometa allows metafiles to be excluded from
394     diff, tag, and other commands; without the option they are inserted
395     into the list of files to be processed.
396 kaz 1.25
397 kaz 1.27 The commit option now takes an optional list of files or directories,
398     just like tag, diff, and others.
399 kaz 1.26
400 kaz 1.23 Release 0.6, 2002-02-16:
401 kaz 1.19
402 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
403 kaz 1.21
404 kaz 1.27 User can interactively select whether to clobber local files or leave
405     everything alone. Effects on the mapping file of a mcvs move are undone,
406     if the restructuring is rolled back, or raises a condition that leads
407     to termination.
409     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
410     during import, and specifies the CVS keyword expansion mode for files
411     having given suffixes, and can also tell Meta-CVS to ignore certain files
412     when importing or adding.
413 kaz 1.22
414 kaz 1.18 Release 0.5, 2002-02-10:
415 kaz 1.14
416 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
417     sanity checks to prevent adds and moves from accidentally clobbering
418     local files. A rearranging gone bad can be rolled back. Effects
419     of a failed mcvs add can also be rolled back.
420 kaz 1.14
421 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
422 kaz 1.15
423 kaz 1.13 Release 0.4, 2002-02-04:
424 kaz 1.10
425 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
426     which ensures that multiple command lines are generated if necessary to
427     avoid surpassing the operating system limit on argument and environment
428     vector size. This is important when someone wants to diff or stat a
429     subdirectory, which requires Meta-CVS to pick out the individual files
430     at the CVS level.
432     The tag, log, status and annotate commands are now available.
434     The MAP file is sorted on F- file names now, not path names. This
435     improves merging, since files do not move within the file when
436     they are renamed.
437 kaz 1.12
438 kaz 1.5 Release 0.3, 2002-02-02:
440 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
441     exit. The program properly indicates failed termination when it exits
442     due to an error condition.
444     Corrections are made in the command line option processing. If z is an
445     option that takes an argument, and the argument is -zx, then x is
446     treated as the argument to the option. Long options arguments are
447     recognized properly, according to the --opt=arg convention. The option
448     processing is restructured. Most of the commands now take the
449     appropriate cvs command-specific options.
451     The update algorithm performs dupe checking over the map, which could
452     happen during a merge.
454     Some more bugfixing has been done to the move command. It was still not
455     handling right some cases of an unversioned file being clobbered. Also,
456     it wasn't renaming a directory containing just one file.
458     I did some performance investigation for larger file sets, and
459     ended up rewriting the code that computes filesystem restructuring
460     changes and map duplicates.
461 kaz 1.5
462 kaz 1.4 Release 0.2, 2002-01-30:
464 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
465     performs some filesystem tests so it does the right thing when a versioned
466     file is moved over a non-versioned file, or when a file is moved into
467     a directory not known to Meta-CVS. Factored out reading and writing of
468     map files into functions.
469 kaz 1.4
470 kaz 1.2 Release 0.1, 2002-01-28:
472 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
473     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
474     mv command when copying a directory to an existing directory.
475 kaz 1.2
476     Release 0.0, 2002-01-27:
477 kaz 1.1
478 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
479     However, it is already usable in its present state and is being used for
480     version control by its author. If you can program in Common Lisp and would
481     like to help, take a look through the TODO file. Send me patches, ideas,
482     feature requests.

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