/[meta-cvs]/meta-cvs/F-B3689DBB46386B16F4B2331934B69223
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Revision 1.147 - (hide annotations)
Thu Nov 21 06:15:15 2002 UTC (11 years, 4 months ago) by kaz
Branch: MAIN
Changes since 1.146: +7 -0 lines
Merging from mcvs-1-0-branch.

Some security fixes.  Funny I didn't think of this sooner!

* code/types.lisp (types-read): Make sure *read-eval* is bound to
nil when calling READ.

* code/mapping.lisp (mapping-read-raw-map, displaced-path-read):
Likewise.
1 kaz 1.115 Release Notes for Meta-CVS
2 kaz 1.1
3 kaz 1.142 Release ?.??, 200?-??-??:
4    
5     All Lisp symbols are isolated in a package.
6    
7 kaz 1.147 Release 1.0, 200?-??-??:
8    
9     Security fix: read-time evaluation was not suppressed when reading
10     structured data, like MCVS/MAP and MCVS/TYPES. This means that it
11     was possible for Alice to check in something that would execute
12     arbitrary code on Bob's computer.
13    
14 kaz 1.146 Release 0.99, 2002-11-17:
15 kaz 1.135
16 kaz 1.140 New link command for creating symbolic links.
17    
18 kaz 1.144 Global option -n (dry run---don't modify filesystem) is processed
19     internally now, not just passed to CVS.
20    
21 kaz 1.135 Failure to invoke text editor is handled.
22    
23 kaz 1.136 The -r option of filt is fixed; it has been broken since the change to the
24     new MAP format, because it was reading the raw map representation, not
25     passing it through the right conversion steps that are needed now.
26    
27 kaz 1.138 Bugfix to purge and remap commands: they were fooled by CVS-generated
28     files in the MCVS/CVS directory. Specifically, files having F- names, and a
29     the suffix ,t.
30    
31 kaz 1.141 Bugfix to add logic in directory restructuring: there was the possibility
32     of mistakingly taking a clobbered local file to be a new local version of
33     the added file, instead of replacing it. This could happen if the local
34     file had a future timestamp relative to the one coming from the repository.
35    
36 kaz 1.143 The prop command does not synchronize or write out map if no options are
37     specified.
38    
39 kaz 1.144 Help text added for move and branch commands. Help text for grab rewritten.
40 kaz 1.137
41 kaz 1.145 The CVSEDITOR and VISUAL environment variables are now checked, not
42     only EDITOR.
43    
44 kaz 1.134 Release 0.98, 2002-10-13:
45 kaz 1.128
46 kaz 1.133 The prop command was mistakenly reading from MAP-LOCAL and writing to MAP,
47     which could cause information loss if the two differ. It now reads from MAP
48     and writes to MAP. (The property changes propagate to MAP-LOCAL by the
49     update operation invoked by prop, as before).
50    
51     Invocation of external programs included in debug trace.
52 kaz 1.128
53     The filt command does not filter F- names if they are immediately preceded by
54     the MCVS/ prefix; such occurences are clearly concrete, sandbox-relative
55     references to the actual F- links, rather than abstract references.
56    
57 kaz 1.129 The update command now supports the -C option, to fetch the repository
58     copy, throwing away local changes. It also now honors the --metaonly
59     and --nometa options.
60 kaz 1.130
61     The export command has been added, for checking out documents without creating
62     a working copy (no MCVS directory in the root of the checkout).
63 kaz 1.131
64 kaz 1.133 The watch command has been added. Note that its syntax differs from that
65     of CVS.
66 kaz 1.132
67     The watchers, editors, edit, and unedit commands have been added.
68 kaz 1.134
69     A script called mcvs-upgrade is now included, and installs alongside the mcvs
70     script. This allows the Meta-CVS Lisp image to recompile and patch itself,
71     giving users of binary distributions an easy way to upgrade from source
72     code.
73    
74 kaz 1.127 Release 0.97, 2002-10-06:
75 kaz 1.119
76     Meta-CVS now builds and runs on Microsoft Windows, under Cygwin
77     (www.cygwin.com). It still relies on hard links, which requires
78     Windows 2000 or XP, and the NTFS filesystem. It probably won't
79     work over FAT.
80 kaz 1.120
81     New --debug option for verbose output.
82    
83     Cleaned up of error messages. Error messages don't specify prefixes like
84     ``mcvs-add:'' or ``mcvs-grab:'' any more. Rather, the error handler adds the
85     ``mcvs:'' prefix when printing the messages in a situation when the error is
86     not continuable.
87 kaz 1.119
88 kaz 1.121 Fixed bug introduced in release 0.13: mcvs add -R was adding only
89     directories, effectively ignoring arguments that are regular files.
90 kaz 1.122 The error-continuation behavior of mcvs add has been revised.
91 kaz 1.121
92 kaz 1.125 Trying to rename an object onto itself, or to move the sandbox root
93     directory are no longer silent no-ops, but produce an error.
94 kaz 1.123
95 kaz 1.124 The remap command now preserves property lists, and picks up changes
96     in executable permission.
97    
98     The grab command now notices when a file changes from having execute
99     permission to not having execute permission.
100    
101 kaz 1.126 Operations on the path . now work in a partial sandbox.
102    
103 kaz 1.118 Release 0.96, 2002-09-21:
104 kaz 1.110
105     The restore command was left broken during the change to the new
106     filemap format. It is now fixed.
107    
108 kaz 1.111 The grab command now handles execute permission bits properly.
109    
110 kaz 1.112 Some more commands have detailed help.
111    
112 kaz 1.113 There is now a global option -i which specifies a script to be
113 kaz 1.114 executed. This allows Meta-CVS to be scripted using Lisp. For
114     instance suppose you have the following script and call it
115     list-matching:
116 kaz 1.113
117     #!/usr/local/bin/mcvs -i
118     (in-sandbox-root-dir
119 kaz 1.114 (let ((mapping (mapping-read *mcvs-map*))
120 kaz 1.117 (test-func (eval (read-from-string (pop *args*)))))
121 kaz 1.114 (dolist (entry mapping)
122     (with-slots (path raw-plist) entry
123 kaz 1.117 (when (funcall test-func raw-plist)
124 kaz 1.114 (format t "~a~%" path))))))
125    
126     Then to list the names of files whose "importance" property is
127     a value greater than two, run:
128    
129     ./list-matching '(lambda (plist)
130     (let ((imp (getf plist :importance)))
131     (and imp (> imp 2))))'
132 kaz 1.117
133     WARNING: Scripting accesses the guts of Meta-CVS directly, so scripts may
134     break as Meta-CVS is maintained. There is currently no published set of
135     stable interfaces.
136 kaz 1.113
137 kaz 1.109 Release 0.95, 2002-09-16:
138 kaz 1.104
139 kaz 1.107 The install.sh script no longer uses a borrowed copy of the clisp-link script
140     or the linkkit directory; these have been removed. These materials
141     are available at every CLISP installation; install.sh now finds them
142     and uses them. Users of non-x86 machines ran into problems because of this
143     because linkkit/clisp.h contains architecture-dependent information.
144 kaz 1.104
145 kaz 1.105 A bug in mcvs filt was fixed; it wasn't handling F- names that aren't found
146     in the map.
147    
148 kaz 1.108 A more detailed help system now exists, though it's not complete. The ``mcvs
149     help'' command acts just like ``mcvs --help'' without any arguments. If given
150     an additional parameter which specifies a Meta-CVS command, it produces more
151     detailed documentation for that comand. Help exists already for a few
152     commands.
153    
154 kaz 1.107 The release number is being warped to 0.95, which means that Meta-CVS is now
155     in beta. It is only five updates away from a 1.0 release.
156 kaz 1.106
157 kaz 1.103 Release 0.24, 2002-09-08:
158 kaz 1.98
159 kaz 1.99 The mapping entries for both symlinks and files have extensible property
160     lists now. These are stored in the optional fourth and fifth list elements,
161     respectively of the :FILE and :SYMLINK map entries.
162    
163     Versioning of the execute permission of files is supported, represented as
164     the :EXEC property of a :FILE mapping entry.
165 kaz 1.98
166 kaz 1.100 Some lame syntax is provided for manipulating properties:
167    
168 kaz 1.102 mcvs prop --set foo --clear bar --remove baz main.c list.c
169 kaz 1.100
170     will set the property FOO to true, set the property BAR to false,
171     and remove the property BAZ, in the files main.c and list.c.
172     The execute permission is represented by the property EXEC.
173    
174 kaz 1.97 Release 0.23, 2002-09-02:
175 kaz 1.95
176 kaz 1.96 Bugfix: the grab command notices edited symlinks and incorporates the
177     changes into the mapping.
178    
179     The grab command now figures out moved symlinks. Moved symlinks are those
180     whose pathname has changed, but which continue to point to the same object
181     (which may also have been moved).
182 kaz 1.95
183 kaz 1.94 Release 0.22, 2002-08-31:
184 kaz 1.93
185     Symbolic links are now versioned objects. The format of the MAP file
186     changes to accomodate this; the new Meta-CVS will read old MAP
187     files; when it writes it will write the new format. Old Meta-CVS won't
188     read the new format.
189    
190     When a new module is created from an existing file tree, symbolic
191     links will be recognized and added. The add command will also add
192     symbolic links. Symbolic links can be renamed and moved; this does
193     nothing with their contents. They can point outside of the sandbox
194     using relative or absolute paths.
195    
196 kaz 1.94 TODO:
197    
198 kaz 1.93 There doesn't exist yet a special command to create symbolic links, nor to
199     retarget them; retargetting a link can be done manually by editing MCVS/MAP
200     and updating. Retargetting a link using the ln -s command, won't
201 kaz 1.94 backpropagate to the MAP file; an update will clobber the link.
202    
203     The grab command does not yet compute symbolic link moves; a moved symbolic
204     link is treated as a remove and add. This will be easy to fix.
205    
206     The remap command ignores symlinks.
207 kaz 1.93
208 kaz 1.92 Release 0.21, 2002-08-04:
209 kaz 1.88
210 kaz 1.89 Syntax of grab command changed. The branch is no longer specified as an
211     argument, but using the -r command option. If no revision is specified with
212     -r, then a -A must be specified to make the grab go to the main trunk. This
213     is a safety feature, since grabbing foreign snapshots to the trunk is almost
214     always wrong, though it could be useful during backup recovery, or for fixing
215     mistakes.
216    
217 kaz 1.91 The way operating system functions are targetted has changed. Instead of
218     relying on the ``linuxlibc6'' module provided by CLISP, Meta-CVS now
219     has its own module for calling foreign functions. This module is portable;
220     it does not depend on the layout of glibc data structures. So Meta-CVS
221     is in theory now portable to other Unixes (provided they have /dev/urandom).
222    
223 kaz 1.87 Release 0.20, 2002-07-27:
224 kaz 1.86
225     The commit command does a true global commit when given no file or directory
226     parameters, and not given the --metaonly option. This means commiting all
227     changes in the MCVS directory, even if they are in F-files that are not
228     currently mapped.
229    
230 kaz 1.85 Release 0.19, 2002-07-16:
231 kaz 1.81
232     When moving multiple files or directories to a subdirectory, a
233     restart is now provided to skip over bad ones and continue.
234    
235 kaz 1.83 Grab no longer scans files if there are only added files, or only removed
236     files. There are no moves to deduce in that case.
237    
238 kaz 1.84 Restore properly creates lost+found at the root of a partial sandbox,
239     rather than at the abstract root of the module.
240    
241 kaz 1.83 Some other algorithmic improvements made.
242 kaz 1.82
243     The first few sections of a user guide have been written.
244    
245 kaz 1.80 Release 0.18, 2002-07-07:
246 kaz 1.77
247 kaz 1.78 Cool new feature: checkout takes an extra argument, which specifies a
248     subdirectory of the project. Specifying a subdirectory results in a ``partial
249     sandbox'', whose root directory is the specified subdirectory of the larger
250     project. The rest of the project is ``invisible'' to that sandbox. A
251     subdirectory argument can also be given to mcvs grab, which will cause it to
252     integrate the new source tree against a subtree of the Meta-CVS project
253 kaz 1.79 rather than the entire project. The subtree doesn't have to exist; in
254     that case you get an empty sandbox. Adding files to this sandbox will cause
255     the tree to exist in the project.
256 kaz 1.78
257 kaz 1.77 Bugfix: mcvs grab was not computing moves properly over small file sets,
258     wrongly treating them as removes and adds.
259    
260 kaz 1.76 Release 0.17, 2002-07-02:
261 kaz 1.71
262     The create command no longer takes a vendor branch. Instead the symbol
263     ``Created-by-Meta-CVS'' is used as the vendor tag to satisfy CVS.
264    
265 kaz 1.72 The grab command no longer does useless synchronization on files that
266     are about to be deleted.
267    
268 kaz 1.75 New purge command; does ``cvs rm'' on deleted files, that is to say, F- files
269     that have no mapping.
270    
271     New restore command; re-enters deleted files into the mapping, under
272     the ``lost+found'' directory, using their F- names as sandbox names.
273 kaz 1.73
274 kaz 1.74 Bugfix: when a checkout bails because it is requested over top of an existing
275     working copy, it must not delete that working copy's MCVS sub directory.
276    
277 kaz 1.70 Release 0.16, 2002-06-29:
278 kaz 1.67
279     Added new heuristics to grab command. Paths are analyzed to determine
280     move distance. Greater distances reduce the confidence in a move.
281     These rules help sort out grabs in a project where similar or
282     duplicate files are subject to parallel moves, the ambiguity being
283 kaz 1.68 resolved by favoring shorter moves. Word comparisons are case-insensitive
284     now. Common words (those that appear in many files) are ignored when
285     comparing files.
286 kaz 1.67
287 kaz 1.69 New options, --meta and --metaonly. This area of Meta-CVS is cleaned
288     up a little bit. Most reporting commands like log or diff no longer
289     operate on meta files by default; they must be explicitly told to do
290     so with --meta or --metaonly. Only the commit command implicitly includes
291     metafiles by default, and so if this is not wanted, --nometa must be
292     selected. The update command remains special; if it is given file
293     arguments, it does not include meta files. If given no arguments, it
294     does a global CVS up across the entire project.
295    
296 kaz 1.66 Release 0.15, 2002-06-25:
297 kaz 1.61
298 kaz 1.65 Optimized a string splitting routine which is used heavily for processing
299     paths; the result is a noticeable performance improvement in some commands
300     that process large numbers of files.
301 kaz 1.61
302 kaz 1.62 Renamed ``import'' command to ``create''.
303    
304 kaz 1.65 Bugfix: checkout and create showed errors when removing directory, due to
305     broken :postorder support in directory walking function.
306 kaz 1.63
307 kaz 1.65 Bugfix: on failure, checkout was failing to delete the MCVS directory when
308     the checkout was directed to an existing directory.
309    
310 kaz 1.66 New feature: ``mcvs grab'' command imports third-party snapshots to a
311 kaz 1.65 branch. This is invoked in the root directory of the source tree to import.
312     It determines what files have been added and removed in the snapshot, and
313     tries to compute which removes and adds are actually moves. This is done by
314     analyzing the actual contents of the files according to a crude algorithm to
315     do fuzzy comparisons, so that even files which were modified as well as moved
316     are discovered.
317 kaz 1.64
318 kaz 1.60 Release 0.14, 2002-06-21:
319 kaz 1.59
320     Bugfix: mcvs add was broken for files that have no suffix, causing
321 kaz 1.60 the underlying cvs add to fail. This was broken in 0.7 when type
322     handling was added.
323 kaz 1.59
324 kaz 1.58 Release 0.13, 2002-06-06:
325 kaz 1.55
326     Sandbox synchronization now handles the case of two files having
327     the same timestamp. An error is signaled, with interactive resolution
328     to synchronize either way, or do nothing.
329    
330 kaz 1.56 If a file must be deleted on update, and this cannot be done, it
331     is now a continuable error.
332    
333     Bugfix: pass -I ! to cvs import so that it won't ignore some F- files
334     whose suffix is one of the ones cvs ignores by default.
335    
336 kaz 1.57 New command: mcvs remap. The user can move or delete files directly without
337     going through Meta-CVS. When mcvs remap is invoked, it will hunt down the
338     moves and deletions, and reconstruct the mapping accordingly; that is,
339     it remaps the new structure. This command uses inode numbers to identify
340     files; if a file is copied and then the original is deleted, that won't
341     be recognized as a move.
342    
343 kaz 1.53 Release 0.12, 2002-04-18:
344 kaz 1.51
345     Bugfix: remove was broken in 0.10, fixed now.
346    
347 kaz 1.54 Bugfix: status, diff, etc. work in empty project rather than complaining
348     ``. not known to Meta-CVS''.
349    
350 kaz 1.52 The checkout operation now can now populate an existing directory, including
351     the current working directory (mcvs co -d . modulename). Of course, the
352     target directory cannot be an existing Meta-CVS sandbox.
353     This is a useful feature, which allows sandboxes to blend with an
354     existing directory structure.
355    
356     Checkout now uses the same function for generating the sandbox
357     structure as does update. This is now necessary, because local files
358     can be clobbered by the checkout.
359    
360 kaz 1.50 Release 0.11, 2002-04-12:
361 kaz 1.46
362     Bugfix: when branch invokes rtag, it now takes the CVSROOT information
363     from CVS/Root and passes it via -d. This is necessary because rtag does not
364     look at a local CVS subdirectory for this information, only the
365     -d option or the environment variable.
366    
367 kaz 1.48 Command for listing branches added (list-branches or lb). Also shows
368     what sticky tag the sandbox is updated to.
369    
370     Command for switching branches added (switch or sw).
371    
372     Merge detects that working copy is on non-branch tag and bails.
373 kaz 1.47
374 kaz 1.49 Absolute paths can now be specified as file arguments. These are
375     based from the root directory of the sandbox, not the actual filesystem root
376     directory.
377    
378 kaz 1.45 Release 0.10, 2002-04-03:
379 kaz 1.44
380     Automatic merging implemented. Branch is created using branch command,
381     and merging from another branch is done using simple merge command.
382     Meta-CVS maintains the tags to keep track of what has been merged
383     from what branch to what branch.
384 kaz 1.40
385     Bugfix: checkout -d foo bar was complaining about directory bar already
386     existing, even though it should only care about foo.
387    
388 kaz 1.41 The remove command now requires explicit -R option to recursively remove
389 kaz 1.42 a directory. It has more detailed error reporting.
390 kaz 1.41
391 kaz 1.43 The move command has better error reporting.
392    
393 kaz 1.39 Release 0.9, 2002-03-14:
394 kaz 1.37
395     Bugfix: the .cvsignore file is now subject to tagging, status, etc,
396     (unless --nometa is specified, of course).
397 kaz 1.38
398     The mcvs filt command takes -r <revision> or -D <date> parameters.
399     This means to retrieve the MAP file as of the specified revision or
400     date and use that mapping to perform the filtering translation,
401     rather than using MAP-LOCAL.
402 kaz 1.39
403     The mcvs update command takes filename arguments now and also
404     supports the -p option.
405 kaz 1.37
406 kaz 1.36 Release 0.8, 2002-03-13:
407 kaz 1.28
408 kaz 1.29 Bug fixed in mcvs add; it was not ignoring files that are already
409     listed as :ignore in MCVS/TYPES.
410    
411 kaz 1.34 Bug fixed in mcvs move: a target with a trailing slash is now treated
412     as a directory (if it does not already exist and is a non-directory).
413    
414 kaz 1.30 The -d option of mcvs checkout can now be used to override the checkout
415     directory, which is normally the same as the module name.
416    
417 kaz 1.31 The global options --version, --help, -q, -Q and -e are now supported.
418    
419 kaz 1.33 New global options --error-continue and --error-terminate to disable
420     interactive error handling in two different ways.
421    
422 kaz 1.32 Log level of many messages has changed; many messages have been
423     relegated to debug level.
424    
425 kaz 1.35 The import command now creates a .cvsignore file containing the name
426     MAP-LOCAL.
427    
428 kaz 1.24 Release 0.7, 2002-03-09:
429    
430 kaz 1.27 The import command collects a list of the file suffixes and brings up
431     a text editor to allow the user to edit their CVS keyword expansion
432     behavior. This information is kept in a new metafile called TYPES. The
433     add command also updates TYPES; it identifies any suffixes which are new,
434     and brings up an editor. The F- files now carry suffixes, which
435     simplifies interfacing with CVS, and also allows cvswrappers to work.
436    
437     Recursive add works (mcvs add -R ...).
438    
439     New command line option --nometa allows metafiles to be excluded from
440     diff, tag, and other commands; without the option they are inserted
441     into the list of files to be processed.
442 kaz 1.25
443 kaz 1.27 The commit option now takes an optional list of files or directories,
444     just like tag, diff, and others.
445 kaz 1.26
446 kaz 1.23 Release 0.6, 2002-02-16:
447 kaz 1.19
448 kaz 1.27 The add operation was horribly broken in 0.5, it is fixed.
449 kaz 1.21
450 kaz 1.27 User can interactively select whether to clobber local files or leave
451     everything alone. Effects on the mapping file of a mcvs move are undone,
452     if the restructuring is rolled back, or raises a condition that leads
453     to termination.
454    
455     Meta-CVS now keeps a new meta-file called MCVS/TYPES. This is created
456     during import, and specifies the CVS keyword expansion mode for files
457     having given suffixes, and can also tell Meta-CVS to ignore certain files
458     when importing or adding.
459 kaz 1.22
460 kaz 1.18 Release 0.5, 2002-02-10:
461 kaz 1.14
462 kaz 1.27 Much improved error handling. Filesystem rearranging code performs
463     sanity checks to prevent adds and moves from accidentally clobbering
464     local files. A rearranging gone bad can be rolled back. Effects
465     of a failed mcvs add can also be rolled back.
466 kaz 1.14
467 kaz 1.27 MAP-LOCAL is now sorted in the same way as MAP.
468 kaz 1.15
469 kaz 1.13 Release 0.4, 2002-02-04:
470 kaz 1.10
471 kaz 1.27 CVS is invoked using internal function resembling the xargs utility,
472     which ensures that multiple command lines are generated if necessary to
473     avoid surpassing the operating system limit on argument and environment
474     vector size. This is important when someone wants to diff or stat a
475     subdirectory, which requires Meta-CVS to pick out the individual files
476     at the CVS level.
477    
478     The tag, log, status and annotate commands are now available.
479    
480     The MAP file is sorted on F- file names now, not path names. This
481     improves merging, since files do not move within the file when
482     they are renamed.
483 kaz 1.12
484 kaz 1.5 Release 0.3, 2002-02-02:
485    
486 kaz 1.27 Process termination done is properly in top level handler, by a nonlocal
487     exit. The program properly indicates failed termination when it exits
488     due to an error condition.
489    
490     Corrections are made in the command line option processing. If z is an
491     option that takes an argument, and the argument is -zx, then x is
492     treated as the argument to the option. Long options arguments are
493     recognized properly, according to the --opt=arg convention. The option
494     processing is restructured. Most of the commands now take the
495     appropriate cvs command-specific options.
496    
497     The update algorithm performs dupe checking over the map, which could
498     happen during a merge.
499    
500     Some more bugfixing has been done to the move command. It was still not
501     handling right some cases of an unversioned file being clobbered. Also,
502     it wasn't renaming a directory containing just one file.
503    
504     I did some performance investigation for larger file sets, and
505     ended up rewriting the code that computes filesystem restructuring
506     changes and map duplicates.
507 kaz 1.5
508 kaz 1.4 Release 0.2, 2002-01-30:
509    
510 kaz 1.27 Changed official name from MCVS to Meta-CVS. The move command now
511     performs some filesystem tests so it does the right thing when a versioned
512     file is moved over a non-versioned file, or when a file is moved into
513     a directory not known to Meta-CVS. Factored out reading and writing of
514     map files into functions.
515 kaz 1.4
516 kaz 1.2 Release 0.1, 2002-01-28:
517    
518 kaz 1.27 Support for mcvs diff -u added. The -R option works for mcvs add command.
519     Bug fixed in mcvs mv command; it wasn't working analogously to the Unix
520     mv command when copying a directory to an existing directory.
521 kaz 1.2
522     Release 0.0, 2002-01-27:
523 kaz 1.1
524 kaz 1.27 This is alpha software. It is not complete, and lacks documentation.
525     However, it is already usable in its present state and is being used for
526     version control by its author. If you can program in Common Lisp and would
527     like to help, take a look through the TODO file. Send me patches, ideas,
528     feature requests.

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