/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Contents of /meta-cvs/F-B3689DBB46386B16F4B2331934B69223

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Revision 1.75 - (show annotations)
Tue Jul 2 18:32:52 2002 UTC (11 years, 9 months ago) by kaz
Branch: MAIN
Changes since 1.74: +5 -2 lines
* purge.lisp (mcvs-purge): Factor out code for computing
deleted files.

* mapping.lisp (mapping-removed-files): New function, contains
code factored from mcvs-purge.

* restore.lisp: New file.
(mcvs-restore, mcvs-restore-wrapper): New functions.
1 Release Notes for Meta-CVS
2
3 Release 0.17, 2002-07-??:
4
5 The create command no longer takes a vendor branch. Instead the symbol
6 ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
7
8 The grab command no longer does useless synchronization on files that
9 are about to be deleted.
10
11 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
12 that have no mapping.
13
14 New restore command; re-enters deleted files into the mapping, under
15 the ``lost+found'' directory, using their F- names as sandbox names.
16
17 Bugfix: when a checkout bails because it is requested over top of an existing
18 working copy, it must not delete that working copy's MCVS sub directory.
19
20 Release 0.16, 2002-06-29:
21
22 Added new heuristics to grab command. Paths are analyzed to determine
23 move distance. Greater distances reduce the confidence in a move.
24 These rules help sort out grabs in a project where similar or
25 duplicate files are subject to parallel moves, the ambiguity being
26 resolved by favoring shorter moves. Word comparisons are case-insensitive
27 now. Common words (those that appear in many files) are ignored when
28 comparing files.
29
30 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
31 up a little bit. Most reporting commands like log or diff no longer
32 operate on meta files by default; they must be explicitly told to do
33 so with --meta or --metaonly. Only the commit command implicitly includes
34 metafiles by default, and so if this is not wanted, --nometa must be
35 selected. The update command remains special; if it is given file
36 arguments, it does not include meta files. If given no arguments, it
37 does a global CVS up across the entire project.
38
39 Release 0.15, 2002-06-25:
40
41 Optimized a string splitting routine which is used heavily for processing
42 paths; the result is a noticeable performance improvement in some commands
43 that process large numbers of files.
44
45 Renamed ``import'' command to ``create''.
46
47 Bugfix: checkout and create showed errors when removing directory, due to
48 broken :postorder support in directory walking function.
49
50 Bugfix: on failure, checkout was failing to delete the MCVS directory when
51 the checkout was directed to an existing directory.
52
53 New feature: ``mcvs grab'' command imports third-party snapshots to a
54 branch. This is invoked in the root directory of the source tree to import.
55 It determines what files have been added and removed in the snapshot, and
56 tries to compute which removes and adds are actually moves. This is done by
57 analyzing the actual contents of the files according to a crude algorithm to
58 do fuzzy comparisons, so that even files which were modified as well as moved
59 are discovered.
60
61 Release 0.14, 2002-06-21:
62
63 Bugfix: mcvs add was broken for files that have no suffix, causing
64 the underlying cvs add to fail. This was broken in 0.7 when type
65 handling was added.
66
67 Release 0.13, 2002-06-06:
68
69 Sandbox synchronization now handles the case of two files having
70 the same timestamp. An error is signaled, with interactive resolution
71 to synchronize either way, or do nothing.
72
73 If a file must be deleted on update, and this cannot be done, it
74 is now a continuable error.
75
76 Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
77 whose suffix is one of the ones cvs ignores by default.
78
79 New command: mcvs remap. The user can move or delete files directly without
80 going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
81 moves and deletions, and reconstruct the mapping accordingly; that is,
82 it remaps the new structure. This command uses inode numbers to identify
83 files; if a file is copied and then the original is deleted, that won't
84 be recognized as a move.
85
86 Release 0.12, 2002-04-18:
87
88 Bugfix: remove was broken in 0.10, fixed now.
89
90 Bugfix: status, diff, etc. work in empty project rather than complaining
91 ``. not known to Meta-CVS''.
92
93 The checkout operation now can now populate an existing directory, including
94 the current working directory (mcvs co -d . modulename). Of course, the
95 target directory cannot be an existing Meta-CVS sandbox.
96 This is a useful feature, which allows sandboxes to blend with an
97 existing directory structure.
98
99 Checkout now uses the same function for generating the sandbox
100 structure as does update. This is now necessary, because local files
101 can be clobbered by the checkout.
102
103 Release 0.11, 2002-04-12:
104
105 Bugfix: when branch invokes rtag, it now takes the CVSROOT information
106 from CVS/Root and passes it via -d. This is necessary because rtag does not
107 look at a local CVS subdirectory for this information, only the
108 -d option or the environment variable.
109
110 Command for listing branches added (list-branches or lb). Also shows
111 what sticky tag the sandbox is updated to.
112
113 Command for switching branches added (switch or sw).
114
115 Merge detects that working copy is on non-branch tag and bails.
116
117 Absolute paths can now be specified as file arguments. These are
118 based from the root directory of the sandbox, not the actual filesystem root
119 directory.
120
121 Release 0.10, 2002-04-03:
122
123 Automatic merging implemented. Branch is created using branch command,
124 and merging from another branch is done using simple merge command.
125 Meta-CVS maintains the tags to keep track of what has been merged
126 from what branch to what branch.
127
128 Bugfix: checkout -d foo bar was complaining about directory bar already
129 existing, even though it should only care about foo.
130
131 The remove command now requires explicit -R option to recursively remove
132 a directory. It has more detailed error reporting.
133
134 The move command has better error reporting.
135
136 Release 0.9, 2002-03-14:
137
138 Bugfix: the .cvsignore file is now subject to tagging, status, etc,
139 (unless --nometa is specified, of course).
140
141 The mcvs filt command takes -r <revision> or -D <date> parameters.
142 This means to retrieve the MAP file as of the specified revision or
143 date and use that mapping to perform the filtering translation,
144 rather than using MAP-LOCAL.
145
146 The mcvs update command takes filename arguments now and also
147 supports the -p option.
148
149 Release 0.8, 2002-03-13:
150
151 Bug fixed in mcvs add; it was not ignoring files that are already
152 listed as :ignore in MCVS/TYPES.
153
154 Bug fixed in mcvs move: a target with a trailing slash is now treated
155 as a directory (if it does not already exist and is a non-directory).
156
157 The -d option of mcvs checkout can now be used to override the checkout
158 directory, which is normally the same as the module name.
159
160 The global options --version, --help, -q, -Q and -e are now supported.
161
162 New global options --error-continue and --error-terminate to disable
163 interactive error handling in two different ways.
164
165 Log level of many messages has changed; many messages have been
166 relegated to debug level.
167
168 The import command now creates a .cvsignore file containing the name
169 MAP-LOCAL.
170
171 Release 0.7, 2002-03-09:
172
173 The import command collects a list of the file suffixes and brings up
174 a text editor to allow the user to edit their CVS keyword expansion
175 behavior. This information is kept in a new metafile called TYPES. The
176 add command also updates TYPES; it identifies any suffixes which are new,
177 and brings up an editor. The F- files now carry suffixes, which
178 simplifies interfacing with CVS, and also allows cvswrappers to work.
179
180 Recursive add works (mcvs add -R ...).
181
182 New command line option --nometa allows metafiles to be excluded from
183 diff, tag, and other commands; without the option they are inserted
184 into the list of files to be processed.
185
186 The commit option now takes an optional list of files or directories,
187 just like tag, diff, and others.
188
189 Release 0.6, 2002-02-16:
190
191 The add operation was horribly broken in 0.5, it is fixed.
192
193 User can interactively select whether to clobber local files or leave
194 everything alone. Effects on the mapping file of a mcvs move are undone,
195 if the restructuring is rolled back, or raises a condition that leads
196 to termination.
197
198 Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
199 during import, and specifies the CVS keyword expansion mode for files
200 having given suffixes, and can also tell Meta-CVS to ignore certain files
201 when importing or adding.
202
203 Release 0.5, 2002-02-10:
204
205 Much improved error handling. Filesystem rearranging code performs
206 sanity checks to prevent adds and moves from accidentally clobbering
207 local files. A rearranging gone bad can be rolled back. Effects
208 of a failed mcvs add can also be rolled back.
209
210 MAP-LOCAL is now sorted in the same way as MAP.
211
212 Release 0.4, 2002-02-04:
213
214 CVS is invoked using internal function resembling the xargs utility,
215 which ensures that multiple command lines are generated if necessary to
216 avoid surpassing the operating system limit on argument and environment
217 vector size. This is important when someone wants to diff or stat a
218 subdirectory, which requires Meta-CVS to pick out the individual files
219 at the CVS level.
220
221 The tag, log, status and annotate commands are now available.
222
223 The MAP file is sorted on F- file names now, not path names. This
224 improves merging, since files do not move within the file when
225 they are renamed.
226
227 Release 0.3, 2002-02-02:
228
229 Process termination done is properly in top level handler, by a nonlocal
230 exit. The program properly indicates failed termination when it exits
231 due to an error condition.
232
233 Corrections are made in the command line option processing. If z is an
234 option that takes an argument, and the argument is -zx, then x is
235 treated as the argument to the option. Long options arguments are
236 recognized properly, according to the --opt=arg convention. The option
237 processing is restructured. Most of the commands now take the
238 appropriate cvs command-specific options.
239
240 The update algorithm performs dupe checking over the map, which could
241 happen during a merge.
242
243 Some more bugfixing has been done to the move command. It was still not
244 handling right some cases of an unversioned file being clobbered. Also,
245 it wasn't renaming a directory containing just one file.
246
247 I did some performance investigation for larger file sets, and
248 ended up rewriting the code that computes filesystem restructuring
249 changes and map duplicates.
250
251 Release 0.2, 2002-01-30:
252
253 Changed official name from MCVS to Meta-CVS. The move command now
254 performs some filesystem tests so it does the right thing when a versioned
255 file is moved over a non-versioned file, or when a file is moved into
256 a directory not known to Meta-CVS. Factored out reading and writing of
257 map files into functions.
258
259 Release 0.1, 2002-01-28:
260
261 Support for mcvs diff -u added. The -R option works for mcvs add command.
262 Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
263 mv command when copying a directory to an existing directory.
264
265 Release 0.0, 2002-01-27:
266
267 This is alpha software. It is not complete, and lacks documentation.
268 However, it is already usable in its present state and is being used for
269 version control by its author. If you can program in Common Lisp and would
270 like to help, take a look through the TODO file. Send me patches, ideas,
271 feature requests.

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