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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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

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