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1 | ;;; inversion.el --- When you need something in version XX.XX |
2 | ||
3 | ;;; Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008, 2009 | |
4 | ;;; Free Software Foundation, Inc. | |
5 | ||
6 | ;; Author: Eric M. Ludlam <zappo@gnu.org> | |
7 | ;; Version: 0.2 | |
8 | ;; Keywords: OO, lisp | |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
12 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation, either version 3 of the License, or | |
15 | ;; (at your option) any later version. | |
16 | ||
17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
21 | ||
22 | ;; You should have received a copy of the GNU General Public License | |
23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
24 | ||
25 | ;;; Commentary: | |
26 | ;; | |
27 | ;; Keeping track of rapidly developing software is a tough thing to | |
28 | ;; do, especially if you want to have co-dependent packages which all | |
29 | ;; move at different rates. | |
30 | ;; | |
31 | ;; This library provides a framework for specifying version numbers | |
32 | ;; and (as side effect) have a flexible way of getting a desired feature set. | |
33 | ;; | |
34 | ;; If you would like to use this package to satisfy dependency replace this: | |
35 | ;; | |
36 | ;; (require 'spiffy) | |
37 | ;; | |
38 | ;; with this: | |
39 | ;; | |
40 | ;; (require 'inversion) | |
41 | ;; (inversion-require 'spiffy "1.0") | |
42 | ;; | |
43 | ;; If you feel the need to not throw errors, you can do this instead: | |
44 | ;; | |
45 | ;; (let ((err (inversion-test 'spiffy "1.0"))) | |
46 | ;; (if err (your-stuff-here))) | |
47 | ;; | |
48 | ;; If you new package (2.0) needs to make sure a load file from your | |
49 | ;; package is compatible, use this test: | |
50 | ;; | |
51 | ;; (if (not (inversion-reverse-test 'spiffy version-from-file)) | |
52 | ;; ;; Everything ok | |
53 | ;; (do stuff) | |
54 | ;; ;; Out of date | |
55 | ;; (import-old-code)) | |
56 | ;; | |
57 | ;; If you would like to make inversion optional, do this: | |
58 | ;; | |
59 | ;; (or (require 'inversion nil t) | |
60 | ;; (defun inversion-test (p v) | |
61 | ;; (string= v (symbol-value | |
62 | ;; (intern-soft (concat (symbol-string p) "-version")))))) | |
63 | ;; | |
64 | ;; Or modify to specify `inversion-require' instead. | |
65 | ;; | |
66 | ;; TODO: | |
67 | ;; Offer to download newer versions of a package. | |
68 | ||
69 | ;;; History: | |
70 | ;; | |
71 | ;; Sept 3, 2002: First general publication. | |
72 | ||
73 | ;;; Code: | |
74 | ||
75 | (defvar inversion-version "1.3" | |
76 | "Current version of InVersion.") | |
77 | ||
78 | (defvar inversion-incompatible-version "0.1alpha1" | |
79 | "An earlier release which is incompatible with this release.") | |
80 | ||
81 | (defconst inversion-decoders | |
82 | '( | |
83 | (alpha "^\\([0-9]+\\)\\.\\([0-9]+\\)\\s-*alpha\\([0-9]+\\)?$" 3) | |
84 | (beta "^\\([0-9]+\\)\\.\\([0-9]+\\)\\s-*beta\\([0-9]+\\)?$" 3) | |
85 | (beta "^\\([0-9]+\\)\\.\\([0-9]+\\)\\s-*(beta\\([0-9]+\\)?)" 3) | |
86 | (prerelease "^\\([0-9]+\\)\\.\\([0-9]+\\)\\s-*pre\\([0-9]+\\)?$" 3) | |
87 | (full "^\\([0-9]+\\)\\.\\([0-9]+\\)$" 2) | |
88 | (fullsingle "^\\([0-9]+\\)$" 1) | |
89 | (patch "^\\([0-9]+\\)\\.\\([0-9]+\\) (patch \\([0-9]+\\))" 3) | |
90 | (point "^\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\)$" 3) | |
91 | (build "^\\([0-9]+\\)\\.\\([0-9]+\\)\\.\\([0-9]+\\).\\([0-9]+\\)$" 4) | |
92 | ) | |
93 | "List of decoders for version strings. | |
94 | Each decoder is of the form: | |
95 | ||
96 | ( RELEASE-TYPE REGEXP MAX ) | |
97 | ||
98 | RELEASE-TYPE is a symbol specifying something like `beta' or `alpha'. | |
99 | REGEXP is the regular expression to match a version string. | |
100 | MAX is the maximum number of match-numbers in the release number. | |
101 | Decoders must be ordered to decode least stable versions before the | |
102 | more stable ones.") | |
103 | ||
104 | ;;; Version Checking | |
105 | ;; | |
106 | (defun inversion-decode-version (version-string) | |
107 | "Decode VERSION-STRING into an encoded list. | |
108 | Return value is of the form: | |
109 | (RELEASE MAJOR MINOR ...) | |
110 | where RELEASE is a symbol such as `full', or `beta'." | |
111 | (let ((decoders inversion-decoders) | |
112 | (result nil)) | |
113 | (while (and decoders (not result)) | |
114 | (if (string-match (nth 1 (car decoders)) version-string) | |
115 | (let ((ver nil) | |
116 | (num-left (nth 2 (car decoders))) | |
117 | (count 1)) | |
118 | (while (<= count num-left) | |
119 | (setq ver (cons | |
120 | (if (match-beginning count) | |
121 | (string-to-number | |
122 | (substring version-string | |
123 | (match-beginning count) | |
124 | (match-end count))) | |
125 | 1) | |
126 | ver) | |
127 | count (1+ count))) | |
128 | (setq result (cons (caar decoders) (nreverse ver)))) | |
129 | (setq decoders (cdr decoders)))) | |
130 | result)) | |
131 | ||
132 | (defun inversion-package-version (package) | |
133 | "Return the decoded version for PACKAGE." | |
134 | (let ((ver (symbol-value | |
135 | (intern-soft | |
136 | (concat (symbol-name package) | |
137 | "-version")))) | |
138 | (code nil)) | |
139 | (unless ver | |
140 | (error "Package %S does not define %S-version" package package)) | |
141 | ;; Decode the code | |
142 | (setq code (inversion-decode-version ver)) | |
143 | (unless code | |
144 | (error "%S-version value cannot be decoded" package)) | |
145 | code)) | |
146 | ||
147 | (defun inversion-package-incompatibility-version (package) | |
148 | "Return the decoded incompatibility version for PACKAGE. | |
149 | The incompatibility version is specified by the programmer of | |
150 | a package when a package is not backward compatible. It is | |
151 | not an indication of new features or bug fixes." | |
152 | (let ((ver (symbol-value | |
153 | (intern-soft | |
154 | (concat (symbol-name package) | |
155 | "-incompatible-version"))))) | |
156 | (if (not ver) | |
157 | nil | |
158 | ;; Decode the code | |
159 | (inversion-decode-version ver)))) | |
160 | ||
161 | (defun inversion-recode (code) | |
162 | "Convert CODE into a string." | |
163 | (let ((r (nth 0 code)) ; release-type | |
164 | (n (nth 1 code)) ; main number | |
165 | (i (nth 2 code)) ; first increment | |
166 | (p (nth 3 code))) ; second increment | |
167 | (cond | |
168 | ((eq r 'full) | |
169 | (setq r "" p "")) | |
170 | ((eq r 'point) | |
171 | (setq r "."))) | |
172 | (format "%s.%s%s%s" n i r p))) | |
173 | ||
174 | (defun inversion-release-to-number (release-symbol) | |
175 | "Convert RELEASE-SYMBOL into a number." | |
176 | (let* ((ra (assoc release-symbol inversion-decoders)) | |
177 | (rn (- (length inversion-decoders) | |
178 | (length (member ra inversion-decoders))))) | |
179 | rn)) | |
180 | ||
181 | (defun inversion-= (ver1 ver2) | |
182 | "Return non-nil if VER1 is equal to VER2." | |
183 | (equal ver1 ver2)) | |
184 | ||
185 | (defun inversion-< (ver1 ver2) | |
186 | "Return non-nil if VER1 is less than VER2." | |
187 | (let ((v1-0 (inversion-release-to-number (nth 0 ver1))) | |
188 | (v1-1 (nth 1 ver1)) | |
189 | (v1-2 (nth 2 ver1)) | |
190 | (v1-3 (nth 3 ver1)) | |
191 | (v1-4 (nth 4 ver1)) | |
192 | ;; v2 | |
193 | (v2-0 (inversion-release-to-number (nth 0 ver2))) | |
194 | (v2-1 (nth 1 ver2)) | |
195 | (v2-2 (nth 2 ver2)) | |
196 | (v2-3 (nth 3 ver2)) | |
197 | (v2-4 (nth 4 ver2)) | |
198 | ) | |
199 | (or (and (= v1-0 v2-0) | |
200 | (= v1-1 v2-1) | |
201 | (= v1-2 v2-2) | |
202 | (= v1-3 v2-3) | |
203 | v1-4 v2-4 ; all or nothin if elt - is = | |
204 | (< v1-4 v2-4)) | |
205 | (and (= v1-0 v2-0) | |
206 | (= v1-1 v2-1) | |
207 | (= v1-2 v2-2) | |
208 | v1-3 v2-3 ; all or nothin if elt - is = | |
209 | (< v1-3 v2-3)) | |
210 | (and (= v1-1 v2-1) | |
211 | (< v1-2 v2-2)) | |
212 | (and (< v1-1 v2-1)) | |
213 | (and (< v1-0 v2-0) | |
214 | (= v1-1 v2-1) | |
215 | (= v1-2 v2-2) | |
216 | ) | |
217 | ))) | |
218 | ||
219 | (defun inversion-check-version (version incompatible-version | |
220 | minimum &rest reserved) | |
221 | "Check that a given version meets the minimum requirement. | |
222 | VERSION, INCOMPATIBLE-VERSION and MINIMUM are of similar format to | |
223 | return entries of `inversion-decode-version', or a classic version | |
224 | string. INCOMPATIBLE-VERSION can be nil. | |
225 | RESERVED arguments are kept for a later use. | |
226 | Return: | |
227 | - nil if everything is ok | |
228 | - 'outdated if VERSION is less than MINIMUM. | |
229 | - 'incompatible if VERSION is not backward compatible with MINIMUM. | |
230 | - t if the check failed." | |
231 | (let ((code (if (stringp version) | |
232 | (inversion-decode-version version) | |
233 | version)) | |
234 | (req (if (stringp minimum) | |
235 | (inversion-decode-version minimum) | |
236 | minimum)) | |
237 | ) | |
238 | ;; Perform a test. | |
239 | (cond | |
240 | ((inversion-= code req) | |
241 | ;; Same version.. Yay! | |
242 | nil) | |
243 | ((inversion-< code req) | |
244 | ;; Version is too old! | |
245 | 'outdated) | |
246 | ((inversion-< req code) | |
247 | ;; Newer is installed. What to do? | |
248 | (let ((incompatible | |
249 | (if (stringp incompatible-version) | |
250 | (inversion-decode-version incompatible-version) | |
251 | incompatible-version))) | |
252 | (cond | |
253 | ((not incompatible) nil) | |
254 | ((or (inversion-= req incompatible) | |
255 | (inversion-< req incompatible)) | |
256 | ;; The requested version is = or < than what the package | |
257 | ;; maintainer says is incompatible. | |
258 | 'incompatible) | |
259 | ;; Things are ok. | |
260 | (t nil)))) | |
261 | ;; Check failed | |
262 | (t t)))) | |
263 | ||
264 | (defun inversion-test (package minimum &rest reserved) | |
265 | "Test that PACKAGE meets the MINIMUM version requirement. | |
266 | PACKAGE is a symbol, similar to what is passed to `require'. | |
267 | MINIMUM is of similar format to return entries of | |
268 | `inversion-decode-version', or a classic version string. | |
269 | RESERVED arguments are kept for a later user. | |
270 | This depends on the symbols `PACKAGE-version' and optionally | |
271 | `PACKAGE-incompatible-version' being defined in PACKAGE. | |
272 | Return nil if everything is ok. Return an error string otherwise." | |
273 | (let ((check (inversion-check-version | |
274 | (inversion-package-version package) | |
275 | (inversion-package-incompatibility-version package) | |
276 | minimum reserved))) | |
277 | (cond | |
278 | ((null check) | |
279 | ;; Same version.. Yay! | |
280 | nil) | |
281 | ((eq check 'outdated) | |
282 | ;; Version is too old! | |
283 | (format "You need to upgrade package %s to %s" package minimum)) | |
284 | ((eq check 'incompatible) | |
285 | ;; Newer is installed but the requested version is = or < than | |
286 | ;; what the package maintainer says is incompatible, then throw | |
287 | ;; that error. | |
288 | (format "Package %s version is not backward compatible with %s" | |
289 | package minimum)) | |
290 | ;; Check failed | |
291 | (t "Inversion version check failed.")))) | |
292 | ||
293 | (defun inversion-reverse-test (package oldversion &rest reserved) | |
294 | "Test that PACKAGE at OLDVERSION is still compatible. | |
295 | If something like a save file is loaded at OLDVERSION, this | |
296 | test will identify if OLDVERSION is compatible with the current version | |
297 | of PACKAGE. | |
298 | PACKAGE is a symbol, similar to what is passed to `require'. | |
299 | OLDVERSION is of similar format to return entries of | |
300 | `inversion-decode-version', or a classic version string. | |
301 | RESERVED arguments are kept for a later user. | |
302 | This depends on the symbols `PACKAGE-version' and optionally | |
303 | `PACKAGE-incompatible-version' being defined in PACKAGE. | |
304 | Return nil if everything is ok. Return an error string otherwise." | |
305 | (let ((check (inversion-check-version | |
306 | (inversion-package-version package) | |
307 | (inversion-package-incompatibility-version package) | |
308 | oldversion reserved))) | |
309 | (cond | |
310 | ((null check) | |
311 | ;; Same version.. Yay! | |
312 | nil) | |
313 | ((eq check 'outdated) | |
314 | ;; Version is too old! | |
315 | (format "Package %s version %s is not compatible with current version" | |
316 | package oldversion)) | |
317 | ((eq check 'incompatible) | |
318 | ;; Newer is installed but the requested version is = or < than | |
319 | ;; what the package maintainer says is incompatible, then throw | |
320 | ;; that error. | |
321 | (format "Package %s version is not backward compatible with %s" | |
322 | package oldversion)) | |
323 | ;; Check failed | |
324 | (t "Inversion version check failed.")))) | |
325 | ||
326 | (defun inversion-require (package version &optional file directory | |
327 | &rest reserved) | |
328 | "Declare that you need PACKAGE with at least VERSION. | |
329 | PACKAGE might be found in FILE. (See `require'.) | |
330 | Throws an error if VERSION is incompatible with what is installed. | |
331 | Optional argument DIRECTORY is a location where new versions of | |
332 | this tool can be located. If there is a versioning problem and | |
333 | DIRECTORY is provided, inversion will offer to download the file. | |
334 | Optional argument RESERVED is saved for later use." | |
335 | (require package file) | |
336 | (let ((err (inversion-test package version))) | |
337 | (when err | |
338 | (if directory | |
339 | (inversion-download-package-ask err package directory version) | |
340 | (error err))) | |
341 | ;; Return the package symbol that was required. | |
342 | package)) | |
343 | ||
344 | (defun inversion-require-emacs (emacs-ver xemacs-ver) | |
345 | "Declare that you need either EMACS-VER, or XEMACS-VER. | |
346 | Only checks one based on which kind of Emacs is being run." | |
347 | (let ((err (inversion-test 'emacs | |
348 | (if (featurep 'xemacs) | |
349 | xemacs-ver | |
350 | emacs-ver)))) | |
351 | (if err (error err) | |
352 | ;; Something nice... | |
353 | t))) | |
354 | ||
355 | (defconst inversion-find-data | |
356 | '("(def\\(var\\|const\\)\\s-+%s-%s\\s-+\"\\([^\"]+\\)" 2) | |
357 | "Regexp template and match data index of a version string.") | |
358 | ||
359 | (defun inversion-find-version (package) | |
360 | "Search for the version and incompatible version of PACKAGE. | |
361 | Does not load PACKAGE nor requires that it has been previously loaded. | |
362 | Search in the directories in `load-path' for a PACKAGE.el library. | |
363 | Visit the file found and search for the declarations of variables or | |
364 | constants `PACKAGE-version' and `PACKAGE-incompatible-version'. The | |
365 | value of these variables must be a version string. | |
366 | ||
367 | Return a pair (VERSION-STRING . INCOMPATIBLE-VERSION-STRING) where | |
368 | INCOMPATIBLE-VERSION-STRING can be nil. | |
369 | Return nil when VERSION-STRING was not found." | |
370 | (let* ((file (locate-library (format "%s.el" package) t)) | |
371 | (tag (car inversion-find-data)) | |
372 | (idx (nth 1 inversion-find-data)) | |
373 | version) | |
374 | (when file | |
375 | (with-temp-buffer | |
376 | ;; The 3000 is a bit arbitrary, but should cut down on | |
377 | ;; fileio as version info usually is at the very top | |
378 | ;; of a file. AFter a long commentary could be bad. | |
379 | (insert-file-contents-literally file nil 0 3000) | |
380 | (goto-char (point-min)) | |
381 | (when (re-search-forward (format tag package 'version) nil t) | |
382 | (setq version (list (match-string idx))) | |
383 | (goto-char (point-min)) | |
384 | (when (re-search-forward | |
385 | (format tag package 'incompatible-version) nil t) | |
386 | (setcdr version (match-string idx)))))) | |
387 | version)) | |
388 | ||
389 | (defun inversion-add-to-load-path (package minimum | |
390 | &optional installdir | |
391 | &rest subdirs) | |
392 | "Add the PACKAGE path to `load-path' if necessary. | |
393 | MINIMUM is the minimum version requirement of PACKAGE. | |
394 | Optional argument INSTALLDIR is the base directory where PACKAGE is | |
395 | installed. It defaults to `default-directory'/PACKAGE. | |
396 | SUBDIRS are sub-directories to add to `load-path', following the main | |
397 | INSTALLDIR path." | |
398 | (let ((ver (inversion-find-version package))) | |
399 | ;; If PACKAGE not found or a bad version already in `load-path', | |
400 | ;; prepend the new PACKAGE path, so it will be loaded first. | |
401 | (when (or (not ver) | |
402 | (and | |
403 | (inversion-check-version (car ver) (cdr ver) minimum) | |
404 | (message "Outdated %s %s shadowed to meet minimum version %s" | |
405 | package (car ver) minimum) | |
406 | t)) | |
407 | (let* ((default-directory | |
408 | (or installdir | |
409 | (expand-file-name (format "./%s" package)))) | |
410 | subdir) | |
411 | (when (file-directory-p default-directory) | |
412 | ;; Add SUBDIRS | |
413 | (while subdirs | |
414 | (setq subdir (expand-file-name (car subdirs)) | |
415 | subdirs (cdr subdirs)) | |
416 | (when (file-directory-p subdir) | |
417 | ;;(message "%S added to `load-path'" subdir) | |
418 | (add-to-list 'load-path subdir))) | |
419 | ;; Add the main path | |
420 | ;;(message "%S added to `load-path'" default-directory) | |
421 | (add-to-list 'load-path default-directory)) | |
422 | ;; We get to this point iff we do not accept or there is no | |
423 | ;; system file. Lets check the version of what we just | |
424 | ;; installed... just to be safe. | |
425 | (let ((newver (inversion-find-version package))) | |
426 | (if (not newver) | |
427 | (error "Failed to find version for newly installed %s" | |
428 | package)) | |
429 | (if (inversion-check-version (car newver) (cdr newver) minimum) | |
430 | (error "Outdated %s %s just installed" package (car newver))) | |
431 | ))))) | |
432 | ||
433 | ;;; URL and downloading code | |
434 | ;; | |
435 | (defun inversion-locate-package-files (package directory &optional version) | |
436 | "Get a list of distributions of PACKAGE from DIRECTORY. | |
437 | DIRECTORY can be an ange-ftp compatible filename, such as: | |
438 | \"/ftp@ftp1.sourceforge.net/pub/sourceforge/PACKAGE\" | |
439 | If it is a URL, wget will be used for download. | |
440 | Optional argument VERSION will restrict the list of available versions | |
441 | to the file matching VERSION exactly, or nil." | |
442 | ;;DIRECTORY should also allow a URL: | |
443 | ;; \"http://ftp1.sourceforge.net/PACKAGE\" | |
444 | ;; but then I can get file listings easily. | |
445 | (if (symbolp package) (setq package (symbol-name package))) | |
446 | (directory-files directory t | |
447 | (if version | |
448 | (concat "^" package "-" version "\\>") | |
449 | package))) | |
450 | ||
451 | (defvar inversion-package-common-tails '( ".tar.gz" | |
452 | ".tar" | |
453 | ".zip" | |
454 | ".gz" | |
455 | ) | |
456 | "Common distribution mechanisms for Emacs Lisp packages.") | |
457 | ||
458 | (defun inversion-locate-package-files-and-split (package directory &optional version) | |
459 | "Use `inversion-locate-package-files' to get a list of PACKAGE files. | |
460 | DIRECTORY is the location where distributions of PACKAGE are. | |
461 | VERSION is an optional argument specifying a version to restrict to. | |
462 | The return list is an alist with the version string in the CAR, | |
463 | and the full path name in the CDR." | |
464 | (if (symbolp package) (setq package (symbol-name package))) | |
465 | (let ((f (inversion-locate-package-files package directory version)) | |
466 | (out nil)) | |
467 | (while f | |
468 | (let* ((file (car f)) | |
469 | (dist (file-name-nondirectory file)) | |
470 | (tails inversion-package-common-tails) | |
471 | (verstring nil)) | |
472 | (while (and tails (not verstring)) | |
473 | (when (string-match (concat (car tails) "$") dist) | |
474 | (setq verstring | |
475 | (substring dist (1+ (length package)) (match-beginning 0)))) | |
476 | (setq tails (cdr tails))) | |
477 | (if (not verstring) | |
478 | (error "Cannot decode version for %s" dist)) | |
479 | (setq out | |
480 | (cons | |
481 | (cons verstring file) | |
482 | out)) | |
483 | (setq f (cdr f)))) | |
484 | out)) | |
485 | ||
486 | (defun inversion-download-package-ask (err package directory version) | |
487 | "Due to ERR, offer to download PACKAGE from DIRECTORY. | |
488 | The package should have VERSION available for download." | |
489 | (if (symbolp package) (setq package (symbol-name package))) | |
490 | (let ((files (inversion-locate-package-files-and-split | |
491 | package directory version))) | |
492 | (if (not files) | |
493 | (error err) | |
494 | (if (not (y-or-n-p (concat err ": Download update? "))) | |
495 | (error err) | |
496 | (let ((dest (read-directory-name (format "Download %s to: " | |
497 | package) | |
498 | t))) | |
499 | (if (> (length files) 1) | |
500 | (setq files | |
501 | (list | |
502 | "foo" ;; ignored | |
503 | (read-file-name "Version to download: " | |
504 | directory | |
505 | files | |
506 | t | |
507 | (concat | |
508 | (file-name-as-directory directory) | |
509 | package) | |
510 | nil)))) | |
511 | ||
512 | (copy-file (cdr (car files)) dest)))))) | |
513 | ||
514 | ;;; How we upgrade packages in Emacs has yet to be ironed out. | |
515 | ||
516 | ;; (defun inversion-upgrade-package (package &optional directory) | |
517 | ;; "Try to upgrade PACKAGE in DIRECTORY is available." | |
518 | ;; (interactive "sPackage to upgrade: ") | |
519 | ;; (if (stringp package) (setq package (intern package))) | |
520 | ;; (if (not directory) | |
521 | ;; ;; Hope that the package maintainer specified. | |
522 | ;; (setq directory (symbol-value (or (intern-soft | |
523 | ;; (concat (symbol-name package) | |
524 | ;; "-url")) | |
525 | ;; (intern-soft | |
526 | ;; (concat (symbol-name package) | |
527 | ;; "-directory")))))) | |
528 | ;; (let ((files (inversion-locate-package-files-and-split | |
529 | ;; package directory)) | |
530 | ;; (cver (inversion-package-version package)) | |
531 | ;; (newer nil)) | |
532 | ;; (mapc (lambda (f) | |
533 | ;; (if (inversion-< cver (inversion-decode-version (car f))) | |
534 | ;; (setq newer (cons f newer)))) | |
535 | ;; files) | |
536 | ;; newer | |
537 | ;; )) | |
538 | ||
539 | (provide 'inversion) | |
540 | ||
541 | ;;; inversion.el ends here |