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