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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision 1.97 - (hide annotations)
Mon Sep 2 19:36:29 2002 UTC (11 years, 7 months ago) by kaz
Branch: MAIN
CVS Tags: mcvs-0-23
Changes since 1.96: +1 -1 lines
Preparing for release.
1 kaz 1.3 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz 1.97 Release 0.23, 2002-09-02:
4 kaz 1.95
5 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
6     changes into the mapping.
8     The grab command now figures out moved symlinks. Moved symlinks are those
9     whose pathname has changed, but which continue to point to the same object
10     (which may also have been moved).
11 kaz 1.95
12 kaz 1.94 Release 0.22, 2002-08-31:
13 kaz 1.93
14     Symbolic links are now versioned objects. The format of the MAP file
15     changes to accomodate this; the new Meta-CVS will read old MAP
16     files; when it writes it will write the new format. Old Meta-CVS won't
17     read the new format.
19     When a new module is created from an existing file tree, symbolic
20     links will be recognized and added. The add command will also add
21     symbolic links. Symbolic links can be renamed and moved; this does
22     nothing with their contents. They can point outside of the sandbox
23     using relative or absolute paths.
25 kaz 1.94 TODO:
27 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
28     retarget them; retargetting a link can be done manually by editing MCVS/MAP
29     and updating. Retargetting a link using the ln -s command, won't
30 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
32     The grab command does not yet compute symbolic link moves; a moved symbolic
33     link is treated as a remove and add. This will be easy to fix.
35     The remap command ignores symlinks.
36 kaz 1.93
37 kaz 1.92 Release 0.21, 2002-08-04:
38 kaz 1.88
39 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
40     argument, but using the -r command option. If no revision is specified with
41     -r, then a -A must be specified to make the grab go to the main trunk. This
42     is a safety feature, since grabbing foreign snapshots to the trunk is almost
43     always wrong, though it could be useful during backup recovery, or for fixing
44     mistakes.
46 kaz 1.91 The way operating system functions are targetted has changed. Instead of
47     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
48     has its own module for calling foreign functions. This module is portable;
49     it does not depend on the layout of glibc data structures. So Meta-CVS
50     is in theory now portable to other Unixes (provided they have /dev/urandom).
52 kaz 1.87 Release 0.20, 2002-07-27:
53 kaz 1.86
54     The commit command does a true global commit when given no file or directory
55     parameters, and not given the --metaonly option. This means commiting all
56     changes in the MCVS directory, even if they are in F-files that are not
57     currently mapped.
59 kaz 1.85 Release 0.19, 2002-07-16:
60 kaz 1.81
61     When moving multiple files or directories to a subdirectory, a
62     restart is now provided to skip over bad ones and continue.
64 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
65     files. There are no moves to deduce in that case.
67 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
68     rather than at the abstract root of the module.
70 kaz 1.83 Some other algorithmic improvements made.
71 kaz 1.82
72     The first few sections of a user guide have been written.
74 kaz 1.80 Release 0.18, 2002-07-07:
75 kaz 1.77
76 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
77     subdirectory of the project. Specifying a subdirectory results in a ``partial
78     sandbox'', whose root directory is the specified subdirectory of the larger
79     project. The rest of the project is ``invisible'' to that sandbox. A
80     subdirectory argument can also be given to mcvs grab, which will cause it to
81     integrate the new source tree against a subtree of the Meta-CVS project
82 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
83     that case you get an empty sandbox. Adding files to this sandbox will cause
84     the tree to exist in the project.
85 kaz 1.78
86 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
87     wrongly treating them as removes and adds.
89 kaz 1.76 Release 0.17, 2002-07-02:
90 kaz 1.71
91     The create command no longer takes a vendor branch. Instead the symbol
92     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
94 kaz 1.72 The grab command no longer does useless synchronization on files that
95     are about to be deleted.
97 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
98     that have no mapping.
100     New restore command; re-enters deleted files into the mapping, under
101     the ``lost+found'' directory, using their F- names as sandbox names.
102 kaz 1.73
103 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
104     working copy, it must not delete that working copy's MCVS sub directory.
106 kaz 1.70 Release 0.16, 2002-06-29:
107 kaz 1.67
108     Added new heuristics to grab command. Paths are analyzed to determine
109     move distance. Greater distances reduce the confidence in a move.
110     These rules help sort out grabs in a project where similar or
111     duplicate files are subject to parallel moves, the ambiguity being
112 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
113     now. Common words (those that appear in many files) are ignored when
114     comparing files.
115 kaz 1.67
116 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
117     up a little bit. Most reporting commands like log or diff no longer
118     operate on meta files by default; they must be explicitly told to do
119     so with --meta or --metaonly. Only the commit command implicitly includes
120     metafiles by default, and so if this is not wanted, --nometa must be
121     selected. The update command remains special; if it is given file
122     arguments, it does not include meta files. If given no arguments, it
123     does a global CVS up across the entire project.
125 kaz 1.66 Release 0.15, 2002-06-25:
126 kaz 1.61
127 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
128     paths; the result is a noticeable performance improvement in some commands
129     that process large numbers of files.
130 kaz 1.61
131 kaz 1.62 Renamed ``import'' command to ``create''.
133 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
134     broken :postorder support in directory walking function.
135 kaz 1.63
136 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
137     the checkout was directed to an existing directory.
139 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
140 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
141     It determines what files have been added and removed in the snapshot, and
142     tries to compute which removes and adds are actually moves. This is done by
143     analyzing the actual contents of the files according to a crude algorithm to
144     do fuzzy comparisons, so that even files which were modified as well as moved
145     are discovered.
146 kaz 1.64
147 kaz 1.60 Release 0.14, 2002-06-21:
148 kaz 1.59
149     Bugfix: mcvs add was broken for files that have no suffix, causing
150 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
151     handling was added.
152 kaz 1.59
153 kaz 1.58 Release 0.13, 2002-06-06:
154 kaz 1.55
155     Sandbox synchronization now handles the case of two files having
156     the same timestamp. An error is signaled, with interactive resolution
157     to synchronize either way, or do nothing.
159 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
160     is now a continuable error.
162     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
163     whose suffix is one of the ones cvs ignores by default.
165 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
166     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
167     moves and deletions, and reconstruct the mapping accordingly; that is,
168     it remaps the new structure. This command uses inode numbers to identify
169     files; if a file is copied and then the original is deleted, that won't
170     be recognized as a move.
172 kaz 1.53 Release 0.12, 2002-04-18:
173 kaz 1.51
174     Bugfix: remove was broken in 0.10, fixed now.
176 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
177     ``. not known to Meta-CVS''.
179 kaz 1.52 The checkout operation now can now populate an existing directory, including
180     the current working directory (mcvs co -d . modulename). Of course, the
181     target directory cannot be an existing Meta-CVS sandbox.
182     This is a useful feature, which allows sandboxes to blend with an
183     existing directory structure.
185     Checkout now uses the same function for generating the sandbox
186     structure as does update. This is now necessary, because local files
187     can be clobbered by the checkout.
189 kaz 1.50 Release 0.11, 2002-04-12:
190 kaz 1.46
191     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
192     from CVS/Root and passes it via -d. This is necessary because rtag does not
193     look at a local CVS subdirectory for this information, only the
194     -d option or the environment variable.
196 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
197     what sticky tag the sandbox is updated to.
199     Command for switching branches added (switch or sw).
201     Merge detects that working copy is on non-branch tag and bails.
202 kaz 1.47
203 kaz 1.49 Absolute paths can now be specified as file arguments. These are
204     based from the root directory of the sandbox, not the actual filesystem root
205     directory.
207 kaz 1.45 Release 0.10, 2002-04-03:
208 kaz 1.44
209     Automatic merging implemented. Branch is created using branch command,
210     and merging from another branch is done using simple merge command.
211     Meta-CVS maintains the tags to keep track of what has been merged
212     from what branch to what branch.
213 kaz 1.40
214     Bugfix: checkout -d foo bar was complaining about directory bar already
215     existing, even though it should only care about foo.
217 kaz 1.41 The remove command now requires explicit -R option to recursively remove
218 kaz 1.42 a directory. It has more detailed error reporting.
219 kaz 1.41
220 kaz 1.43 The move command has better error reporting.
222 kaz 1.39 Release 0.9, 2002-03-14:
223 kaz 1.37
224     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
225     (unless --nometa is specified, of course).
226 kaz 1.38
227     The mcvs filt command takes -r <revision> or -D <date> parameters.
228     This means to retrieve the MAP file as of the specified revision or
229     date and use that mapping to perform the filtering translation,
230     rather than using MAP-LOCAL.
231 kaz 1.39
232     The mcvs update command takes filename arguments now and also
233     supports the -p option.
234 kaz 1.37
235 kaz 1.36 Release 0.8, 2002-03-13:
236 kaz 1.28
237 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
238     listed as :ignore in MCVS/TYPES.
240 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
241     as a directory (if it does not already exist and is a non-directory).
243 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
244     directory, which is normally the same as the module name.
246 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
248 kaz 1.33 New global options --error-continue and --error-terminate to disable
249     interactive error handling in two different ways.
251 kaz 1.32 Log level of many messages has changed; many messages have been
252     relegated to debug level.
254 kaz 1.35 The import command now creates a .cvsignore file containing the name
255     MAP-LOCAL.
257 kaz 1.24 Release 0.7, 2002-03-09:
259 kaz 1.27 The import command collects a list of the file suffixes and brings up
260     a text editor to allow the user to edit their CVS keyword expansion
261     behavior. This information is kept in a new metafile called TYPES. The
262     add command also updates TYPES; it identifies any suffixes which are new,
263     and brings up an editor. The F- files now carry suffixes, which
264     simplifies interfacing with CVS, and also allows cvswrappers to work.
266     Recursive add works (mcvs add -R ...).
268     New command line option --nometa allows metafiles to be excluded from
269     diff, tag, and other commands; without the option they are inserted
270     into the list of files to be processed.
271 kaz 1.25
272 kaz 1.27 The commit option now takes an optional list of files or directories,
273     just like tag, diff, and others.
274 kaz 1.26
275 kaz 1.23 Release 0.6, 2002-02-16:
276 kaz 1.19
277 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
278 kaz 1.21
279 kaz 1.27 User can interactively select whether to clobber local files or leave
280     everything alone. Effects on the mapping file of a mcvs move are undone,
281     if the restructuring is rolled back, or raises a condition that leads
282     to termination.
284     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
285     during import, and specifies the CVS keyword expansion mode for files
286     having given suffixes, and can also tell Meta-CVS to ignore certain files
287     when importing or adding.
288 kaz 1.22
289 kaz 1.18 Release 0.5, 2002-02-10:
290 kaz 1.14
291 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
292     sanity checks to prevent adds and moves from accidentally clobbering
293     local files. A rearranging gone bad can be rolled back. Effects
294     of a failed mcvs add can also be rolled back.
295 kaz 1.14
296 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
297 kaz 1.15
298 kaz 1.13 Release 0.4, 2002-02-04:
299 kaz 1.10
300 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
301     which ensures that multiple command lines are generated if necessary to
302     avoid surpassing the operating system limit on argument and environment
303     vector size. This is important when someone wants to diff or stat a
304     subdirectory, which requires Meta-CVS to pick out the individual files
305     at the CVS level.
307     The tag, log, status and annotate commands are now available.
309     The MAP file is sorted on F- file names now, not path names. This
310     improves merging, since files do not move within the file when
311     they are renamed.
312 kaz 1.12
313 kaz 1.5 Release 0.3, 2002-02-02:
315 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
316     exit. The program properly indicates failed termination when it exits
317     due to an error condition.
319     Corrections are made in the command line option processing. If z is an
320     option that takes an argument, and the argument is -zx, then x is
321     treated as the argument to the option. Long options arguments are
322     recognized properly, according to the --opt=arg convention. The option
323     processing is restructured. Most of the commands now take the
324     appropriate cvs command-specific options.
326     The update algorithm performs dupe checking over the map, which could
327     happen during a merge.
329     Some more bugfixing has been done to the move command. It was still not
330     handling right some cases of an unversioned file being clobbered. Also,
331     it wasn't renaming a directory containing just one file.
333     I did some performance investigation for larger file sets, and
334     ended up rewriting the code that computes filesystem restructuring
335     changes and map duplicates.
336 kaz 1.5
337 kaz 1.4 Release 0.2, 2002-01-30:
339 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
340     performs some filesystem tests so it does the right thing when a versioned
341     file is moved over a non-versioned file, or when a file is moved into
342     a directory not known to Meta-CVS. Factored out reading and writing of
343     map files into functions.
344 kaz 1.4
345 kaz 1.2 Release 0.1, 2002-01-28:
347 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
348     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
349     mv command when copying a directory to an existing directory.
350 kaz 1.2
351     Release 0.0, 2002-01-27:
352 kaz 1.1
353 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
354     However, it is already usable in its present state and is being used for
355     version control by its author. If you can program in Common Lisp and would
356     like to help, take a look through the TODO file. Send me patches, ideas,
357     feature requests.

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