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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision 1.111 - (show annotations)
Sat Sep 21 17:58:23 2002 UTC (11 years, 6 months ago) by kaz
Branch: MAIN
Changes since 1.110: +2 -0 lines
* code/grab.lisp (mcvs-grab): Inspect the execute permissions
of stable and moved files, and update the :EXEC propery of
their mapping entries accordingly. In other words, grab changes
in execute permissions properly.
1 Release Notes for Meta-CVS
3 Release 0.96, 2002-09-??:
5 The restore command was left broken during the change to the new
6 filemap format. It is now fixed.
8 The grab command now handles execute permission bits properly.
10 Release 0.95, 2002-09-16:
12 The install.sh script no longer uses a borrowed copy of the clisp-link script
13 or the linkkit directory; these have been removed. These materials
14 are available at every CLISP installation; install.sh now finds them
15 and uses them. Users of non-x86 machines ran into problems because of this
16 because linkkit/clisp.h contains architecture-dependent information.
18 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
19 in the map.
21 A more detailed help system now exists, though it's not complete. The ``mcvs
22 help'' command acts just like ``mcvs --help'' without any arguments. If given
23 an additional parameter which specifies a Meta-CVS command, it produces more
24 detailed documentation for that comand. Help exists already for a few
25 commands.
27 The release number is being warped to 0.95, which means that Meta-CVS is now
28 in beta. It is only five updates away from a 1.0 release.
30 Release 0.24, 2002-09-08:
32 The mapping entries for both symlinks and files have extensible property
33 lists now. These are stored in the optional fourth and fifth list elements,
34 respectively of the :FILE and :SYMLINK map entries.
36 Versioning of the execute permission of files is supported, represented as
37 the :EXEC property of a :FILE mapping entry.
39 Some lame syntax is provided for manipulating properties:
41 mcvs prop --set foo --clear bar --remove baz main.c list.c
43 will set the property FOO to true, set the property BAR to false,
44 and remove the property BAZ, in the files main.c and list.c.
45 The execute permission is represented by the property EXEC.
47 Release 0.23, 2002-09-02:
49 Bugfix: the grab command notices edited symlinks and incorporates the
50 changes into the mapping.
52 The grab command now figures out moved symlinks. Moved symlinks are those
53 whose pathname has changed, but which continue to point to the same object
54 (which may also have been moved).
56 Release 0.22, 2002-08-31:
58 Symbolic links are now versioned objects. The format of the MAP file
59 changes to accomodate this; the new Meta-CVS will read old MAP
60 files; when it writes it will write the new format. Old Meta-CVS won't
61 read the new format.
63 When a new module is created from an existing file tree, symbolic
64 links will be recognized and added. The add command will also add
65 symbolic links. Symbolic links can be renamed and moved; this does
66 nothing with their contents. They can point outside of the sandbox
67 using relative or absolute paths.
69 TODO:
71 There doesn't exist yet a special command to create symbolic links, nor to
72 retarget them; retargetting a link can be done manually by editing MCVS/MAP
73 and updating. Retargetting a link using the ln -s command, won't
74 backpropagate to the MAP file; an update will clobber the link.
76 The grab command does not yet compute symbolic link moves; a moved symbolic
77 link is treated as a remove and add. This will be easy to fix.
79 The remap command ignores symlinks.
81 Release 0.21, 2002-08-04:
83 Syntax of grab command changed. The branch is no longer specified as an
84 argument, but using the -r command option. If no revision is specified with
85 -r, then a -A must be specified to make the grab go to the main trunk. This
86 is a safety feature, since grabbing foreign snapshots to the trunk is almost
87 always wrong, though it could be useful during backup recovery, or for fixing
88 mistakes.
90 The way operating system functions are targetted has changed. Instead of
91 relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
92 has its own module for calling foreign functions. This module is portable;
93 it does not depend on the layout of glibc data structures. So Meta-CVS
94 is in theory now portable to other Unixes (provided they have /dev/urandom).
96 Release 0.20, 2002-07-27:
98 The commit command does a true global commit when given no file or directory
99 parameters, and not given the --metaonly option. This means commiting all
100 changes in the MCVS directory, even if they are in F-files that are not
101 currently mapped.
103 Release 0.19, 2002-07-16:
105 When moving multiple files or directories to a subdirectory, a
106 restart is now provided to skip over bad ones and continue.
108 Grab no longer scans files if there are only added files, or only removed
109 files. There are no moves to deduce in that case.
111 Restore properly creates lost+found at the root of a partial sandbox,
112 rather than at the abstract root of the module.
114 Some other algorithmic improvements made.
116 The first few sections of a user guide have been written.
118 Release 0.18, 2002-07-07:
120 Cool new feature: checkout takes an extra argument, which specifies a
121 subdirectory of the project. Specifying a subdirectory results in a ``partial
122 sandbox'', whose root directory is the specified subdirectory of the larger
123 project. The rest of the project is ``invisible'' to that sandbox. A
124 subdirectory argument can also be given to mcvs grab, which will cause it to
125 integrate the new source tree against a subtree of the Meta-CVS project
126 rather than the entire project. The subtree doesn't have to exist; in
127 that case you get an empty sandbox. Adding files to this sandbox will cause
128 the tree to exist in the project.
130 Bugfix: mcvs grab was not computing moves properly over small file sets,
131 wrongly treating them as removes and adds.
133 Release 0.17, 2002-07-02:
135 The create command no longer takes a vendor branch. Instead the symbol
136 ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
138 The grab command no longer does useless synchronization on files that
139 are about to be deleted.
141 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
142 that have no mapping.
144 New restore command; re-enters deleted files into the mapping, under
145 the ``lost+found'' directory, using their F- names as sandbox names.
147 Bugfix: when a checkout bails because it is requested over top of an existing
148 working copy, it must not delete that working copy's MCVS sub directory.
150 Release 0.16, 2002-06-29:
152 Added new heuristics to grab command. Paths are analyzed to determine
153 move distance. Greater distances reduce the confidence in a move.
154 These rules help sort out grabs in a project where similar or
155 duplicate files are subject to parallel moves, the ambiguity being
156 resolved by favoring shorter moves. Word comparisons are case-insensitive
157 now. Common words (those that appear in many files) are ignored when
158 comparing files.
160 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
161 up a little bit. Most reporting commands like log or diff no longer
162 operate on meta files by default; they must be explicitly told to do
163 so with --meta or --metaonly. Only the commit command implicitly includes
164 metafiles by default, and so if this is not wanted, --nometa must be
165 selected. The update command remains special; if it is given file
166 arguments, it does not include meta files. If given no arguments, it
167 does a global CVS up across the entire project.
169 Release 0.15, 2002-06-25:
171 Optimized a string splitting routine which is used heavily for processing
172 paths; the result is a noticeable performance improvement in some commands
173 that process large numbers of files.
175 Renamed ``import'' command to ``create''.
177 Bugfix: checkout and create showed errors when removing directory, due to
178 broken :postorder support in directory walking function.
180 Bugfix: on failure, checkout was failing to delete the MCVS directory when
181 the checkout was directed to an existing directory.
183 New feature: ``mcvs grab'' command imports third-party snapshots to a
184 branch. This is invoked in the root directory of the source tree to import.
185 It determines what files have been added and removed in the snapshot, and
186 tries to compute which removes and adds are actually moves. This is done by
187 analyzing the actual contents of the files according to a crude algorithm to
188 do fuzzy comparisons, so that even files which were modified as well as moved
189 are discovered.
191 Release 0.14, 2002-06-21:
193 Bugfix: mcvs add was broken for files that have no suffix, causing
194 the underlying cvs add to fail. This was broken in 0.7 when type
195 handling was added.
197 Release 0.13, 2002-06-06:
199 Sandbox synchronization now handles the case of two files having
200 the same timestamp. An error is signaled, with interactive resolution
201 to synchronize either way, or do nothing.
203 If a file must be deleted on update, and this cannot be done, it
204 is now a continuable error.
206 Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
207 whose suffix is one of the ones cvs ignores by default.
209 New command: mcvs remap. The user can move or delete files directly without
210 going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
211 moves and deletions, and reconstruct the mapping accordingly; that is,
212 it remaps the new structure. This command uses inode numbers to identify
213 files; if a file is copied and then the original is deleted, that won't
214 be recognized as a move.
216 Release 0.12, 2002-04-18:
218 Bugfix: remove was broken in 0.10, fixed now.
220 Bugfix: status, diff, etc. work in empty project rather than complaining
221 ``. not known to Meta-CVS''.
223 The checkout operation now can now populate an existing directory, including
224 the current working directory (mcvs co -d . modulename). Of course, the
225 target directory cannot be an existing Meta-CVS sandbox.
226 This is a useful feature, which allows sandboxes to blend with an
227 existing directory structure.
229 Checkout now uses the same function for generating the sandbox
230 structure as does update. This is now necessary, because local files
231 can be clobbered by the checkout.
233 Release 0.11, 2002-04-12:
235 Bugfix: when branch invokes rtag, it now takes the CVSROOT information
236 from CVS/Root and passes it via -d. This is necessary because rtag does not
237 look at a local CVS subdirectory for this information, only the
238 -d option or the environment variable.
240 Command for listing branches added (list-branches or lb). Also shows
241 what sticky tag the sandbox is updated to.
243 Command for switching branches added (switch or sw).
245 Merge detects that working copy is on non-branch tag and bails.
247 Absolute paths can now be specified as file arguments. These are
248 based from the root directory of the sandbox, not the actual filesystem root
249 directory.
251 Release 0.10, 2002-04-03:
253 Automatic merging implemented. Branch is created using branch command,
254 and merging from another branch is done using simple merge command.
255 Meta-CVS maintains the tags to keep track of what has been merged
256 from what branch to what branch.
258 Bugfix: checkout -d foo bar was complaining about directory bar already
259 existing, even though it should only care about foo.
261 The remove command now requires explicit -R option to recursively remove
262 a directory. It has more detailed error reporting.
264 The move command has better error reporting.
266 Release 0.9, 2002-03-14:
268 Bugfix: the .cvsignore file is now subject to tagging, status, etc,
269 (unless --nometa is specified, of course).
271 The mcvs filt command takes -r <revision> or -D <date> parameters.
272 This means to retrieve the MAP file as of the specified revision or
273 date and use that mapping to perform the filtering translation,
274 rather than using MAP-LOCAL.
276 The mcvs update command takes filename arguments now and also
277 supports the -p option.
279 Release 0.8, 2002-03-13:
281 Bug fixed in mcvs add; it was not ignoring files that are already
282 listed as :ignore in MCVS/TYPES.
284 Bug fixed in mcvs move: a target with a trailing slash is now treated
285 as a directory (if it does not already exist and is a non-directory).
287 The -d option of mcvs checkout can now be used to override the checkout
288 directory, which is normally the same as the module name.
290 The global options --version, --help, -q, -Q and -e are now supported.
292 New global options --error-continue and --error-terminate to disable
293 interactive error handling in two different ways.
295 Log level of many messages has changed; many messages have been
296 relegated to debug level.
298 The import command now creates a .cvsignore file containing the name
301 Release 0.7, 2002-03-09:
303 The import command collects a list of the file suffixes and brings up
304 a text editor to allow the user to edit their CVS keyword expansion
305 behavior. This information is kept in a new metafile called TYPES. The
306 add command also updates TYPES; it identifies any suffixes which are new,
307 and brings up an editor. The F- files now carry suffixes, which
308 simplifies interfacing with CVS, and also allows cvswrappers to work.
310 Recursive add works (mcvs add -R ...).
312 New command line option --nometa allows metafiles to be excluded from
313 diff, tag, and other commands; without the option they are inserted
314 into the list of files to be processed.
316 The commit option now takes an optional list of files or directories,
317 just like tag, diff, and others.
319 Release 0.6, 2002-02-16:
321 The add operation was horribly broken in 0.5, it is fixed.
323 User can interactively select whether to clobber local files or leave
324 everything alone. Effects on the mapping file of a mcvs move are undone,
325 if the restructuring is rolled back, or raises a condition that leads
326 to termination.
328 Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
329 during import, and specifies the CVS keyword expansion mode for files
330 having given suffixes, and can also tell Meta-CVS to ignore certain files
331 when importing or adding.
333 Release 0.5, 2002-02-10:
335 Much improved error handling. Filesystem rearranging code performs
336 sanity checks to prevent adds and moves from accidentally clobbering
337 local files. A rearranging gone bad can be rolled back. Effects
338 of a failed mcvs add can also be rolled back.
340 MAP-LOCAL is now sorted in the same way as MAP.
342 Release 0.4, 2002-02-04:
344 CVS is invoked using internal function resembling the xargs utility,
345 which ensures that multiple command lines are generated if necessary to
346 avoid surpassing the operating system limit on argument and environment
347 vector size. This is important when someone wants to diff or stat a
348 subdirectory, which requires Meta-CVS to pick out the individual files
349 at the CVS level.
351 The tag, log, status and annotate commands are now available.
353 The MAP file is sorted on F- file names now, not path names. This
354 improves merging, since files do not move within the file when
355 they are renamed.
357 Release 0.3, 2002-02-02:
359 Process termination done is properly in top level handler, by a nonlocal
360 exit. The program properly indicates failed termination when it exits
361 due to an error condition.
363 Corrections are made in the command line option processing. If z is an
364 option that takes an argument, and the argument is -zx, then x is
365 treated as the argument to the option. Long options arguments are
366 recognized properly, according to the --opt=arg convention. The option
367 processing is restructured. Most of the commands now take the
368 appropriate cvs command-specific options.
370 The update algorithm performs dupe checking over the map, which could
371 happen during a merge.
373 Some more bugfixing has been done to the move command. It was still not
374 handling right some cases of an unversioned file being clobbered. Also,
375 it wasn't renaming a directory containing just one file.
377 I did some performance investigation for larger file sets, and
378 ended up rewriting the code that computes filesystem restructuring
379 changes and map duplicates.
381 Release 0.2, 2002-01-30:
383 Changed official name from MCVS to Meta-CVS. The move command now
384 performs some filesystem tests so it does the right thing when a versioned
385 file is moved over a non-versioned file, or when a file is moved into
386 a directory not known to Meta-CVS. Factored out reading and writing of
387 map files into functions.
389 Release 0.1, 2002-01-28:
391 Support for mcvs diff -u added. The -R option works for mcvs add command.
392 Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
393 mv command when copying a directory to an existing directory.
395 Release 0.0, 2002-01-27:
397 This is alpha software. It is not complete, and lacks documentation.
398 However, it is already usable in its present state and is being used for
399 version control by its author. If you can program in Common Lisp and would
400 like to help, take a look through the TODO file. Send me patches, ideas,
401 feature requests.

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