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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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

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