/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Revision 1.140 - (hide annotations)
Sun Oct 27 00:27:17 2002 UTC (11 years, 5 months ago) by kaz
Branch: MAIN
Changes since 1.139: +2 -0 lines
Merging from mcvs-1-0-branch:

New link command for creating symlinks.

* mcvs-main.lisp (*link-options*): New option constant.
(*mcvs-command-table*): Entries for new command added.
(*usage*): Help text added.

* link.lisp: New file.
(mcvs-link, mcvs-link-wrapper): New functions.
1 kaz 1.115 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz 1.135 Release 0.99, 2002-1?-??:
4    
5 kaz 1.140 New link command for creating symbolic links.
6    
7 kaz 1.135 Failure to invoke text editor is handled.
8    
9 kaz 1.136 The -r option of filt is fixed; it has been broken since the change to the
10     new MAP format, because it was reading the raw map representation, not
11     passing it through the right conversion steps that are needed now.
12    
13 kaz 1.138 Bugfix to purge and remap commands: they were fooled by CVS-generated
14     files in the MCVS/CVS directory. Specifically, files having F- names, and a
15     the suffix ,t.
16    
17 kaz 1.139 Help text added for move command. Help text for grab rewritten.
18 kaz 1.137
19 kaz 1.134 Release 0.98, 2002-10-13:
20 kaz 1.128
21 kaz 1.133 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
22     which could cause information loss if the two differ. It now reads from MAP
23     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
24     update operation invoked by prop, as before).
25    
26     Invocation of external programs included in debug trace.
27 kaz 1.128
28     The filt command does not filter F- names if they are immediately preceded by
29     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
30     references to the actual F- links, rather than abstract references.
31    
32 kaz 1.129 The update command now supports the -C option, to fetch the repository
33     copy, throwing away local changes. It also now honors the --metaonly
34     and --nometa options.
35 kaz 1.130
36     The export command has been added, for checking out documents without creating
37     a working copy (no MCVS directory in the root of the checkout).
38 kaz 1.131
39 kaz 1.133 The watch command has been added. Note that its syntax differs from that
40     of CVS.
41 kaz 1.132
42     The watchers, editors, edit, and unedit commands have been added.
43 kaz 1.134
44     A script called mcvs-upgrade is now included, and installs alongside the mcvs
45     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
46     giving users of binary distributions an easy way to upgrade from source
47     code.
48    
49 kaz 1.127 Release 0.97, 2002-10-06:
50 kaz 1.119
51     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
52     (www.cygwin.com). It still relies on hard links, which requires
53     Windows 2000 or XP, and the NTFS filesystem. It probably won't
54     work over FAT.
55 kaz 1.120
56     New --debug option for verbose output.
57    
58     Cleaned up of error messages. Error messages don't specify prefixes like
59     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
60     ``mcvs:'' prefix when printing the messages in a situation when the error is
61     not continuable.
62 kaz 1.119
63 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
64     directories, effectively ignoring arguments that are regular files.
65 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
66 kaz 1.121
67 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
68     directory are no longer silent no-ops, but produce an error.
69 kaz 1.123
70 kaz 1.124 The remap command now preserves property lists, and picks up changes
71     in executable permission.
72    
73     The grab command now notices when a file changes from having execute
74     permission to not having execute permission.
75    
76 kaz 1.126 Operations on the path . now work in a partial sandbox.
77    
78 kaz 1.118 Release 0.96, 2002-09-21:
79 kaz 1.110
80     The restore command was left broken during the change to the new
81     filemap format. It is now fixed.
82    
83 kaz 1.111 The grab command now handles execute permission bits properly.
84    
85 kaz 1.112 Some more commands have detailed help.
86    
87 kaz 1.113 There is now a global option -i which specifies a script to be
88 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
89     instance suppose you have the following script and call it
90     list-matching:
91 kaz 1.113
92     #!/usr/local/bin/mcvs -i
93     (in-sandbox-root-dir
94 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
95 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
96 kaz 1.114 (dolist (entry mapping)
97     (with-slots (path raw-plist) entry
98 kaz 1.117 (when (funcall test-func raw-plist)
99 kaz 1.114 (format t "~a~%" path))))))
100    
101     Then to list the names of files whose "importance" property is
102     a value greater than two, run:
103    
104     ./list-matching '(lambda (plist)
105     (let ((imp (getf plist :importance)))
106     (and imp (> imp 2))))'
107 kaz 1.117
108     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
109     break as Meta-CVS is maintained. There is currently no published set of
110     stable interfaces.
111 kaz 1.113
112 kaz 1.109 Release 0.95, 2002-09-16:
113 kaz 1.104
114 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
115     or the linkkit directory; these have been removed. These materials
116     are available at every CLISP installation; install.sh now finds them
117     and uses them. Users of non-x86 machines ran into problems because of this
118     because linkkit/clisp.h contains architecture-dependent information.
119 kaz 1.104
120 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
121     in the map.
122    
123 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
124     help'' command acts just like ``mcvs --help'' without any arguments. If given
125     an additional parameter which specifies a Meta-CVS command, it produces more
126     detailed documentation for that comand. Help exists already for a few
127     commands.
128    
129 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
130     in beta. It is only five updates away from a 1.0 release.
131 kaz 1.106
132 kaz 1.103 Release 0.24, 2002-09-08:
133 kaz 1.98
134 kaz 1.99 The mapping entries for both symlinks and files have extensible property
135     lists now. These are stored in the optional fourth and fifth list elements,
136     respectively of the :FILE and :SYMLINK map entries.
137    
138     Versioning of the execute permission of files is supported, represented as
139     the :EXEC property of a :FILE mapping entry.
140 kaz 1.98
141 kaz 1.100 Some lame syntax is provided for manipulating properties:
142    
143 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
144 kaz 1.100
145     will set the property FOO to true, set the property BAR to false,
146     and remove the property BAZ, in the files main.c and list.c.
147     The execute permission is represented by the property EXEC.
148    
149 kaz 1.97 Release 0.23, 2002-09-02:
150 kaz 1.95
151 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
152     changes into the mapping.
153    
154     The grab command now figures out moved symlinks. Moved symlinks are those
155     whose pathname has changed, but which continue to point to the same object
156     (which may also have been moved).
157 kaz 1.95
158 kaz 1.94 Release 0.22, 2002-08-31:
159 kaz 1.93
160     Symbolic links are now versioned objects. The format of the MAP file
161     changes to accomodate this; the new Meta-CVS will read old MAP
162     files; when it writes it will write the new format. Old Meta-CVS won't
163     read the new format.
164    
165     When a new module is created from an existing file tree, symbolic
166     links will be recognized and added. The add command will also add
167     symbolic links. Symbolic links can be renamed and moved; this does
168     nothing with their contents. They can point outside of the sandbox
169     using relative or absolute paths.
170    
171 kaz 1.94 TODO:
172    
173 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
174     retarget them; retargetting a link can be done manually by editing MCVS/MAP
175     and updating. Retargetting a link using the ln -s command, won't
176 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
177    
178     The grab command does not yet compute symbolic link moves; a moved symbolic
179     link is treated as a remove and add. This will be easy to fix.
180    
181     The remap command ignores symlinks.
182 kaz 1.93
183 kaz 1.92 Release 0.21, 2002-08-04:
184 kaz 1.88
185 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
186     argument, but using the -r command option. If no revision is specified with
187     -r, then a -A must be specified to make the grab go to the main trunk. This
188     is a safety feature, since grabbing foreign snapshots to the trunk is almost
189     always wrong, though it could be useful during backup recovery, or for fixing
190     mistakes.
191    
192 kaz 1.91 The way operating system functions are targetted has changed. Instead of
193     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
194     has its own module for calling foreign functions. This module is portable;
195     it does not depend on the layout of glibc data structures. So Meta-CVS
196     is in theory now portable to other Unixes (provided they have /dev/urandom).
197    
198 kaz 1.87 Release 0.20, 2002-07-27:
199 kaz 1.86
200     The commit command does a true global commit when given no file or directory
201     parameters, and not given the --metaonly option. This means commiting all
202     changes in the MCVS directory, even if they are in F-files that are not
203     currently mapped.
204    
205 kaz 1.85 Release 0.19, 2002-07-16:
206 kaz 1.81
207     When moving multiple files or directories to a subdirectory, a
208     restart is now provided to skip over bad ones and continue.
209    
210 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
211     files. There are no moves to deduce in that case.
212    
213 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
214     rather than at the abstract root of the module.
215    
216 kaz 1.83 Some other algorithmic improvements made.
217 kaz 1.82
218     The first few sections of a user guide have been written.
219    
220 kaz 1.80 Release 0.18, 2002-07-07:
221 kaz 1.77
222 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
223     subdirectory of the project. Specifying a subdirectory results in a ``partial
224     sandbox'', whose root directory is the specified subdirectory of the larger
225     project. The rest of the project is ``invisible'' to that sandbox. A
226     subdirectory argument can also be given to mcvs grab, which will cause it to
227     integrate the new source tree against a subtree of the Meta-CVS project
228 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
229     that case you get an empty sandbox. Adding files to this sandbox will cause
230     the tree to exist in the project.
231 kaz 1.78
232 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
233     wrongly treating them as removes and adds.
234    
235 kaz 1.76 Release 0.17, 2002-07-02:
236 kaz 1.71
237     The create command no longer takes a vendor branch. Instead the symbol
238     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
239    
240 kaz 1.72 The grab command no longer does useless synchronization on files that
241     are about to be deleted.
242    
243 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
244     that have no mapping.
245    
246     New restore command; re-enters deleted files into the mapping, under
247     the ``lost+found'' directory, using their F- names as sandbox names.
248 kaz 1.73
249 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
250     working copy, it must not delete that working copy's MCVS sub directory.
251    
252 kaz 1.70 Release 0.16, 2002-06-29:
253 kaz 1.67
254     Added new heuristics to grab command. Paths are analyzed to determine
255     move distance. Greater distances reduce the confidence in a move.
256     These rules help sort out grabs in a project where similar or
257     duplicate files are subject to parallel moves, the ambiguity being
258 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
259     now. Common words (those that appear in many files) are ignored when
260     comparing files.
261 kaz 1.67
262 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
263     up a little bit. Most reporting commands like log or diff no longer
264     operate on meta files by default; they must be explicitly told to do
265     so with --meta or --metaonly. Only the commit command implicitly includes
266     metafiles by default, and so if this is not wanted, --nometa must be
267     selected. The update command remains special; if it is given file
268     arguments, it does not include meta files. If given no arguments, it
269     does a global CVS up across the entire project.
270    
271 kaz 1.66 Release 0.15, 2002-06-25:
272 kaz 1.61
273 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
274     paths; the result is a noticeable performance improvement in some commands
275     that process large numbers of files.
276 kaz 1.61
277 kaz 1.62 Renamed ``import'' command to ``create''.
278    
279 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
280     broken :postorder support in directory walking function.
281 kaz 1.63
282 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
283     the checkout was directed to an existing directory.
284    
285 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
286 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
287     It determines what files have been added and removed in the snapshot, and
288     tries to compute which removes and adds are actually moves. This is done by
289     analyzing the actual contents of the files according to a crude algorithm to
290     do fuzzy comparisons, so that even files which were modified as well as moved
291     are discovered.
292 kaz 1.64
293 kaz 1.60 Release 0.14, 2002-06-21:
294 kaz 1.59
295     Bugfix: mcvs add was broken for files that have no suffix, causing
296 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
297     handling was added.
298 kaz 1.59
299 kaz 1.58 Release 0.13, 2002-06-06:
300 kaz 1.55
301     Sandbox synchronization now handles the case of two files having
302     the same timestamp. An error is signaled, with interactive resolution
303     to synchronize either way, or do nothing.
304    
305 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
306     is now a continuable error.
307    
308     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
309     whose suffix is one of the ones cvs ignores by default.
310    
311 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
312     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
313     moves and deletions, and reconstruct the mapping accordingly; that is,
314     it remaps the new structure. This command uses inode numbers to identify
315     files; if a file is copied and then the original is deleted, that won't
316     be recognized as a move.
317    
318 kaz 1.53 Release 0.12, 2002-04-18:
319 kaz 1.51
320     Bugfix: remove was broken in 0.10, fixed now.
321    
322 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
323     ``. not known to Meta-CVS''.
324    
325 kaz 1.52 The checkout operation now can now populate an existing directory, including
326     the current working directory (mcvs co -d . modulename). Of course, the
327     target directory cannot be an existing Meta-CVS sandbox.
328     This is a useful feature, which allows sandboxes to blend with an
329     existing directory structure.
330    
331     Checkout now uses the same function for generating the sandbox
332     structure as does update. This is now necessary, because local files
333     can be clobbered by the checkout.
334    
335 kaz 1.50 Release 0.11, 2002-04-12:
336 kaz 1.46
337     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
338     from CVS/Root and passes it via -d. This is necessary because rtag does not
339     look at a local CVS subdirectory for this information, only the
340     -d option or the environment variable.
341    
342 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
343     what sticky tag the sandbox is updated to.
344    
345     Command for switching branches added (switch or sw).
346    
347     Merge detects that working copy is on non-branch tag and bails.
348 kaz 1.47
349 kaz 1.49 Absolute paths can now be specified as file arguments. These are
350     based from the root directory of the sandbox, not the actual filesystem root
351     directory.
352    
353 kaz 1.45 Release 0.10, 2002-04-03:
354 kaz 1.44
355     Automatic merging implemented. Branch is created using branch command,
356     and merging from another branch is done using simple merge command.
357     Meta-CVS maintains the tags to keep track of what has been merged
358     from what branch to what branch.
359 kaz 1.40
360     Bugfix: checkout -d foo bar was complaining about directory bar already
361     existing, even though it should only care about foo.
362    
363 kaz 1.41 The remove command now requires explicit -R option to recursively remove
364 kaz 1.42 a directory. It has more detailed error reporting.
365 kaz 1.41
366 kaz 1.43 The move command has better error reporting.
367    
368 kaz 1.39 Release 0.9, 2002-03-14:
369 kaz 1.37
370     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
371     (unless --nometa is specified, of course).
372 kaz 1.38
373     The mcvs filt command takes -r <revision> or -D <date> parameters.
374     This means to retrieve the MAP file as of the specified revision or
375     date and use that mapping to perform the filtering translation,
376     rather than using MAP-LOCAL.
377 kaz 1.39
378     The mcvs update command takes filename arguments now and also
379     supports the -p option.
380 kaz 1.37
381 kaz 1.36 Release 0.8, 2002-03-13:
382 kaz 1.28
383 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
384     listed as :ignore in MCVS/TYPES.
385    
386 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
387     as a directory (if it does not already exist and is a non-directory).
388    
389 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
390     directory, which is normally the same as the module name.
391    
392 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
393    
394 kaz 1.33 New global options --error-continue and --error-terminate to disable
395     interactive error handling in two different ways.
396    
397 kaz 1.32 Log level of many messages has changed; many messages have been
398     relegated to debug level.
399    
400 kaz 1.35 The import command now creates a .cvsignore file containing the name
401     MAP-LOCAL.
402    
403 kaz 1.24 Release 0.7, 2002-03-09:
404    
405 kaz 1.27 The import command collects a list of the file suffixes and brings up
406     a text editor to allow the user to edit their CVS keyword expansion
407     behavior. This information is kept in a new metafile called TYPES. The
408     add command also updates TYPES; it identifies any suffixes which are new,
409     and brings up an editor. The F- files now carry suffixes, which
410     simplifies interfacing with CVS, and also allows cvswrappers to work.
411    
412     Recursive add works (mcvs add -R ...).
413    
414     New command line option --nometa allows metafiles to be excluded from
415     diff, tag, and other commands; without the option they are inserted
416     into the list of files to be processed.
417 kaz 1.25
418 kaz 1.27 The commit option now takes an optional list of files or directories,
419     just like tag, diff, and others.
420 kaz 1.26
421 kaz 1.23 Release 0.6, 2002-02-16:
422 kaz 1.19
423 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
424 kaz 1.21
425 kaz 1.27 User can interactively select whether to clobber local files or leave
426     everything alone. Effects on the mapping file of a mcvs move are undone,
427     if the restructuring is rolled back, or raises a condition that leads
428     to termination.
429    
430     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
431     during import, and specifies the CVS keyword expansion mode for files
432     having given suffixes, and can also tell Meta-CVS to ignore certain files
433     when importing or adding.
434 kaz 1.22
435 kaz 1.18 Release 0.5, 2002-02-10:
436 kaz 1.14
437 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
438     sanity checks to prevent adds and moves from accidentally clobbering
439     local files. A rearranging gone bad can be rolled back. Effects
440     of a failed mcvs add can also be rolled back.
441 kaz 1.14
442 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
443 kaz 1.15
444 kaz 1.13 Release 0.4, 2002-02-04:
445 kaz 1.10
446 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
447     which ensures that multiple command lines are generated if necessary to
448     avoid surpassing the operating system limit on argument and environment
449     vector size. This is important when someone wants to diff or stat a
450     subdirectory, which requires Meta-CVS to pick out the individual files
451     at the CVS level.
452    
453     The tag, log, status and annotate commands are now available.
454    
455     The MAP file is sorted on F- file names now, not path names. This
456     improves merging, since files do not move within the file when
457     they are renamed.
458 kaz 1.12
459 kaz 1.5 Release 0.3, 2002-02-02:
460    
461 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
462     exit. The program properly indicates failed termination when it exits
463     due to an error condition.
464    
465     Corrections are made in the command line option processing. If z is an
466     option that takes an argument, and the argument is -zx, then x is
467     treated as the argument to the option. Long options arguments are
468     recognized properly, according to the --opt=arg convention. The option
469     processing is restructured. Most of the commands now take the
470     appropriate cvs command-specific options.
471    
472     The update algorithm performs dupe checking over the map, which could
473     happen during a merge.
474    
475     Some more bugfixing has been done to the move command. It was still not
476     handling right some cases of an unversioned file being clobbered. Also,
477     it wasn't renaming a directory containing just one file.
478    
479     I did some performance investigation for larger file sets, and
480     ended up rewriting the code that computes filesystem restructuring
481     changes and map duplicates.
482 kaz 1.5
483 kaz 1.4 Release 0.2, 2002-01-30:
484    
485 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
486     performs some filesystem tests so it does the right thing when a versioned
487     file is moved over a non-versioned file, or when a file is moved into
488     a directory not known to Meta-CVS. Factored out reading and writing of
489     map files into functions.
490 kaz 1.4
491 kaz 1.2 Release 0.1, 2002-01-28:
492    
493 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
494     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
495     mv command when copying a directory to an existing directory.
496 kaz 1.2
497     Release 0.0, 2002-01-27:
498 kaz 1.1
499 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
500     However, it is already usable in its present state and is being used for
501     version control by its author. If you can program in Common Lisp and would
502     like to help, take a look through the TODO file. Send me patches, ideas,
503     feature requests.

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