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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision 1.103 - (hide annotations)
Sun Sep 8 20:18:43 2002 UTC (11 years, 7 months ago) by kaz
Branch: MAIN
CVS Tags: mcvs-0-24
Changes since 1.102: +1 -1 lines
Re-doing release 0.24 due to stupid error.
1 kaz 1.3 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz 1.103 Release 0.24, 2002-09-08:
4 kaz 1.98
5 kaz 1.99 The mapping entries for both symlinks and files have extensible property
6     lists now. These are stored in the optional fourth and fifth list elements,
7     respectively of the :FILE and :SYMLINK map entries.
9     Versioning of the execute permission of files is supported, represented as
10     the :EXEC property of a :FILE mapping entry.
11 kaz 1.98
12 kaz 1.100 Some lame syntax is provided for manipulating properties:
14 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
15 kaz 1.100
16     will set the property FOO to true, set the property BAR to false,
17     and remove the property BAZ, in the files main.c and list.c.
18     The execute permission is represented by the property EXEC.
20 kaz 1.97 Release 0.23, 2002-09-02:
21 kaz 1.95
22 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
23     changes into the mapping.
25     The grab command now figures out moved symlinks. Moved symlinks are those
26     whose pathname has changed, but which continue to point to the same object
27     (which may also have been moved).
28 kaz 1.95
29 kaz 1.94 Release 0.22, 2002-08-31:
30 kaz 1.93
31     Symbolic links are now versioned objects. The format of the MAP file
32     changes to accomodate this; the new Meta-CVS will read old MAP
33     files; when it writes it will write the new format. Old Meta-CVS won't
34     read the new format.
36     When a new module is created from an existing file tree, symbolic
37     links will be recognized and added. The add command will also add
38     symbolic links. Symbolic links can be renamed and moved; this does
39     nothing with their contents. They can point outside of the sandbox
40     using relative or absolute paths.
42 kaz 1.94 TODO:
44 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
45     retarget them; retargetting a link can be done manually by editing MCVS/MAP
46     and updating. Retargetting a link using the ln -s command, won't
47 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
49     The grab command does not yet compute symbolic link moves; a moved symbolic
50     link is treated as a remove and add. This will be easy to fix.
52     The remap command ignores symlinks.
53 kaz 1.93
54 kaz 1.92 Release 0.21, 2002-08-04:
55 kaz 1.88
56 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
57     argument, but using the -r command option. If no revision is specified with
58     -r, then a -A must be specified to make the grab go to the main trunk. This
59     is a safety feature, since grabbing foreign snapshots to the trunk is almost
60     always wrong, though it could be useful during backup recovery, or for fixing
61     mistakes.
63 kaz 1.91 The way operating system functions are targetted has changed. Instead of
64     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
65     has its own module for calling foreign functions. This module is portable;
66     it does not depend on the layout of glibc data structures. So Meta-CVS
67     is in theory now portable to other Unixes (provided they have /dev/urandom).
69 kaz 1.87 Release 0.20, 2002-07-27:
70 kaz 1.86
71     The commit command does a true global commit when given no file or directory
72     parameters, and not given the --metaonly option. This means commiting all
73     changes in the MCVS directory, even if they are in F-files that are not
74     currently mapped.
76 kaz 1.85 Release 0.19, 2002-07-16:
77 kaz 1.81
78     When moving multiple files or directories to a subdirectory, a
79     restart is now provided to skip over bad ones and continue.
81 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
82     files. There are no moves to deduce in that case.
84 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
85     rather than at the abstract root of the module.
87 kaz 1.83 Some other algorithmic improvements made.
88 kaz 1.82
89     The first few sections of a user guide have been written.
91 kaz 1.80 Release 0.18, 2002-07-07:
92 kaz 1.77
93 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
94     subdirectory of the project. Specifying a subdirectory results in a ``partial
95     sandbox'', whose root directory is the specified subdirectory of the larger
96     project. The rest of the project is ``invisible'' to that sandbox. A
97     subdirectory argument can also be given to mcvs grab, which will cause it to
98     integrate the new source tree against a subtree of the Meta-CVS project
99 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
100     that case you get an empty sandbox. Adding files to this sandbox will cause
101     the tree to exist in the project.
102 kaz 1.78
103 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
104     wrongly treating them as removes and adds.
106 kaz 1.76 Release 0.17, 2002-07-02:
107 kaz 1.71
108     The create command no longer takes a vendor branch. Instead the symbol
109     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
111 kaz 1.72 The grab command no longer does useless synchronization on files that
112     are about to be deleted.
114 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
115     that have no mapping.
117     New restore command; re-enters deleted files into the mapping, under
118     the ``lost+found'' directory, using their F- names as sandbox names.
119 kaz 1.73
120 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
121     working copy, it must not delete that working copy's MCVS sub directory.
123 kaz 1.70 Release 0.16, 2002-06-29:
124 kaz 1.67
125     Added new heuristics to grab command. Paths are analyzed to determine
126     move distance. Greater distances reduce the confidence in a move.
127     These rules help sort out grabs in a project where similar or
128     duplicate files are subject to parallel moves, the ambiguity being
129 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
130     now. Common words (those that appear in many files) are ignored when
131     comparing files.
132 kaz 1.67
133 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
134     up a little bit. Most reporting commands like log or diff no longer
135     operate on meta files by default; they must be explicitly told to do
136     so with --meta or --metaonly. Only the commit command implicitly includes
137     metafiles by default, and so if this is not wanted, --nometa must be
138     selected. The update command remains special; if it is given file
139     arguments, it does not include meta files. If given no arguments, it
140     does a global CVS up across the entire project.
142 kaz 1.66 Release 0.15, 2002-06-25:
143 kaz 1.61
144 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
145     paths; the result is a noticeable performance improvement in some commands
146     that process large numbers of files.
147 kaz 1.61
148 kaz 1.62 Renamed ``import'' command to ``create''.
150 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
151     broken :postorder support in directory walking function.
152 kaz 1.63
153 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
154     the checkout was directed to an existing directory.
156 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
157 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
158     It determines what files have been added and removed in the snapshot, and
159     tries to compute which removes and adds are actually moves. This is done by
160     analyzing the actual contents of the files according to a crude algorithm to
161     do fuzzy comparisons, so that even files which were modified as well as moved
162     are discovered.
163 kaz 1.64
164 kaz 1.60 Release 0.14, 2002-06-21:
165 kaz 1.59
166     Bugfix: mcvs add was broken for files that have no suffix, causing
167 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
168     handling was added.
169 kaz 1.59
170 kaz 1.58 Release 0.13, 2002-06-06:
171 kaz 1.55
172     Sandbox synchronization now handles the case of two files having
173     the same timestamp. An error is signaled, with interactive resolution
174     to synchronize either way, or do nothing.
176 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
177     is now a continuable error.
179     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
180     whose suffix is one of the ones cvs ignores by default.
182 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
183     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
184     moves and deletions, and reconstruct the mapping accordingly; that is,
185     it remaps the new structure. This command uses inode numbers to identify
186     files; if a file is copied and then the original is deleted, that won't
187     be recognized as a move.
189 kaz 1.53 Release 0.12, 2002-04-18:
190 kaz 1.51
191     Bugfix: remove was broken in 0.10, fixed now.
193 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
194     ``. not known to Meta-CVS''.
196 kaz 1.52 The checkout operation now can now populate an existing directory, including
197     the current working directory (mcvs co -d . modulename). Of course, the
198     target directory cannot be an existing Meta-CVS sandbox.
199     This is a useful feature, which allows sandboxes to blend with an
200     existing directory structure.
202     Checkout now uses the same function for generating the sandbox
203     structure as does update. This is now necessary, because local files
204     can be clobbered by the checkout.
206 kaz 1.50 Release 0.11, 2002-04-12:
207 kaz 1.46
208     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
209     from CVS/Root and passes it via -d. This is necessary because rtag does not
210     look at a local CVS subdirectory for this information, only the
211     -d option or the environment variable.
213 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
214     what sticky tag the sandbox is updated to.
216     Command for switching branches added (switch or sw).
218     Merge detects that working copy is on non-branch tag and bails.
219 kaz 1.47
220 kaz 1.49 Absolute paths can now be specified as file arguments. These are
221     based from the root directory of the sandbox, not the actual filesystem root
222     directory.
224 kaz 1.45 Release 0.10, 2002-04-03:
225 kaz 1.44
226     Automatic merging implemented. Branch is created using branch command,
227     and merging from another branch is done using simple merge command.
228     Meta-CVS maintains the tags to keep track of what has been merged
229     from what branch to what branch.
230 kaz 1.40
231     Bugfix: checkout -d foo bar was complaining about directory bar already
232     existing, even though it should only care about foo.
234 kaz 1.41 The remove command now requires explicit -R option to recursively remove
235 kaz 1.42 a directory. It has more detailed error reporting.
236 kaz 1.41
237 kaz 1.43 The move command has better error reporting.
239 kaz 1.39 Release 0.9, 2002-03-14:
240 kaz 1.37
241     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
242     (unless --nometa is specified, of course).
243 kaz 1.38
244     The mcvs filt command takes -r <revision> or -D <date> parameters.
245     This means to retrieve the MAP file as of the specified revision or
246     date and use that mapping to perform the filtering translation,
247     rather than using MAP-LOCAL.
248 kaz 1.39
249     The mcvs update command takes filename arguments now and also
250     supports the -p option.
251 kaz 1.37
252 kaz 1.36 Release 0.8, 2002-03-13:
253 kaz 1.28
254 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
255     listed as :ignore in MCVS/TYPES.
257 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
258     as a directory (if it does not already exist and is a non-directory).
260 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
261     directory, which is normally the same as the module name.
263 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
265 kaz 1.33 New global options --error-continue and --error-terminate to disable
266     interactive error handling in two different ways.
268 kaz 1.32 Log level of many messages has changed; many messages have been
269     relegated to debug level.
271 kaz 1.35 The import command now creates a .cvsignore file containing the name
272     MAP-LOCAL.
274 kaz 1.24 Release 0.7, 2002-03-09:
276 kaz 1.27 The import command collects a list of the file suffixes and brings up
277     a text editor to allow the user to edit their CVS keyword expansion
278     behavior. This information is kept in a new metafile called TYPES. The
279     add command also updates TYPES; it identifies any suffixes which are new,
280     and brings up an editor. The F- files now carry suffixes, which
281     simplifies interfacing with CVS, and also allows cvswrappers to work.
283     Recursive add works (mcvs add -R ...).
285     New command line option --nometa allows metafiles to be excluded from
286     diff, tag, and other commands; without the option they are inserted
287     into the list of files to be processed.
288 kaz 1.25
289 kaz 1.27 The commit option now takes an optional list of files or directories,
290     just like tag, diff, and others.
291 kaz 1.26
292 kaz 1.23 Release 0.6, 2002-02-16:
293 kaz 1.19
294 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
295 kaz 1.21
296 kaz 1.27 User can interactively select whether to clobber local files or leave
297     everything alone. Effects on the mapping file of a mcvs move are undone,
298     if the restructuring is rolled back, or raises a condition that leads
299     to termination.
301     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
302     during import, and specifies the CVS keyword expansion mode for files
303     having given suffixes, and can also tell Meta-CVS to ignore certain files
304     when importing or adding.
305 kaz 1.22
306 kaz 1.18 Release 0.5, 2002-02-10:
307 kaz 1.14
308 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
309     sanity checks to prevent adds and moves from accidentally clobbering
310     local files. A rearranging gone bad can be rolled back. Effects
311     of a failed mcvs add can also be rolled back.
312 kaz 1.14
313 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
314 kaz 1.15
315 kaz 1.13 Release 0.4, 2002-02-04:
316 kaz 1.10
317 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
318     which ensures that multiple command lines are generated if necessary to
319     avoid surpassing the operating system limit on argument and environment
320     vector size. This is important when someone wants to diff or stat a
321     subdirectory, which requires Meta-CVS to pick out the individual files
322     at the CVS level.
324     The tag, log, status and annotate commands are now available.
326     The MAP file is sorted on F- file names now, not path names. This
327     improves merging, since files do not move within the file when
328     they are renamed.
329 kaz 1.12
330 kaz 1.5 Release 0.3, 2002-02-02:
332 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
333     exit. The program properly indicates failed termination when it exits
334     due to an error condition.
336     Corrections are made in the command line option processing. If z is an
337     option that takes an argument, and the argument is -zx, then x is
338     treated as the argument to the option. Long options arguments are
339     recognized properly, according to the --opt=arg convention. The option
340     processing is restructured. Most of the commands now take the
341     appropriate cvs command-specific options.
343     The update algorithm performs dupe checking over the map, which could
344     happen during a merge.
346     Some more bugfixing has been done to the move command. It was still not
347     handling right some cases of an unversioned file being clobbered. Also,
348     it wasn't renaming a directory containing just one file.
350     I did some performance investigation for larger file sets, and
351     ended up rewriting the code that computes filesystem restructuring
352     changes and map duplicates.
353 kaz 1.5
354 kaz 1.4 Release 0.2, 2002-01-30:
356 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
357     performs some filesystem tests so it does the right thing when a versioned
358     file is moved over a non-versioned file, or when a file is moved into
359     a directory not known to Meta-CVS. Factored out reading and writing of
360     map files into functions.
361 kaz 1.4
362 kaz 1.2 Release 0.1, 2002-01-28:
364 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
365     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
366     mv command when copying a directory to an existing directory.
367 kaz 1.2
368     Release 0.0, 2002-01-27:
369 kaz 1.1
370 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
371     However, it is already usable in its present state and is being used for
372     version control by its author. If you can program in Common Lisp and would
373     like to help, take a look through the TODO file. Send me patches, ideas,
374     feature requests.

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