Mercurial > hg > xemacs-beta
comparison lisp/prim/lisp-file-db.el @ 203:850242ba4a81 r20-3b28
Import from CVS: tag r20-3b28
| author | cvs |
|---|---|
| date | Mon, 13 Aug 2007 10:02:21 +0200 |
| parents | |
| children |
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| 202:61eefc8fc970 | 203:850242ba4a81 |
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| 1 (defvar *default-db-name* (expand-file-name "~/.xemacs/lisp-file-database") | |
| 2 "Default location of the database") | |
| 3 | |
| 4 (defun build-lisp-file-db (&optional db-name path rebuild) | |
| 5 "Create a database of all lisp files in the directories given by PATH. | |
| 6 DB-NAME is the database name, defaulting to *default-db-name* | |
| 7 PATH is a list of directories to search, defaulting to load-path. | |
| 8 REBUILD " | |
| 9 (let ((path (or path load-path)) | |
| 10 (db (open-database (or db-name *default-db-name*) nil nil "rw+"))) | |
| 11 ;; For each entry in path, find all files in it and put them in | |
| 12 ;; the database. | |
| 13 (dolist (dir path) | |
| 14 (dolist (file (directory-files dir t nil t t)) | |
| 15 ;; Separate the file name and the directory. The key is the | |
| 16 ;; filename, and the value is the whole pathname. However, if | |
| 17 ;; the key already exists, DON'T put that entry in. We want | |
| 18 ;; things that occur first in load-path to override entries | |
| 19 ;; later in load-path | |
| 20 (let ((fname (file-name-nondirectory file))) | |
| 21 (put-database fname file db nil)))))) | |
| 22 | |
| 23 (defun show-lisp-db (&optional db-name) | |
| 24 (let ((db (open-database (or db-name *default-db-name*) nil nil "r")) | |
| 25 (entries '())) | |
| 26 (map-database #'(lambda (key val) | |
| 27 (push (cons key val) entries)) | |
| 28 db) | |
| 29 (nreverse entries))) | |
| 30 | |
| 31 (defun lookup-lisp-file-db (file &optional db-name) | |
| 32 (let ((name (file-name-nondirectory file)) | |
| 33 (db (open-database (or db-name *default-db-name*) nil nil "r"))) | |
| 34 (do* ((ext '("" ".elc" ".el") (rest ext)) | |
| 35 (entry (get-database (concat name (first ext)) db) | |
| 36 (get-database (concat name (first ext)) db))) | |
| 37 ((or entry (null ext)) entry) | |
| 38 ()))) | |
| 39 |