69 lines
2.3 KiB
Common Lisp
69 lines
2.3 KiB
Common Lisp
(in-package :org.ryuslash.clark)
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(export '(clark))
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(defvar *db* nil
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"The database connection.")
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(defconstant *version* "0.1.0"
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"Clark's version.")
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(defun check-db (name)
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"Connect to the database, possibly creating it."
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(let ((db-exists (probe-file name)))
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(setf *db* (connect name))
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(unless db-exists
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(execute-non-query *db* "CREATE TABLE bookmark (url VARCHAR(255) UNIQUE, date INTEGER, name VARCHAR(255), description TEXT)")
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(execute-non-query *db* "CREATE TABLE tag (name VARCHAR(255) UNIQUE);")
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(execute-non-query *db* "CREATE TABLE bookmark_tag (bookmark_id INTEGER REFERENCES bookmark(rowid), tag_id INTEGER REFERENCES tag(rowid), PRIMARY KEY (bookmark_id, tag_id))"))))
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(defun get-bookmarks ()
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"Get a list of all bookmarks.
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The result contains the url and the name of the bookmark."
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(let ((statement
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(prepare-statement *db* "select url, name from bookmark")))
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(loop
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while (step-statement statement)
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collect (list (statement-column-value statement 0)
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(statement-column-value statement 1))
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finally (finalize-statement statement))))
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(defun help-command (args)
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"Show a help message."
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(format t (concatenate
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'string
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"Usage: clark [command [options]...]~%"
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"~%"
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"Possible commands:~%"
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"~%"
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"help Display this help and exit~%"
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"version Output version information and exit~%")))
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(defun make-command-name (base)
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"Turn BASE into the name of a possible command."
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(intern (concatenate 'string (string-upcase base) "-COMMAND")
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:org.ryuslash.clark))
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(defun print-bookmark (bm)
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"Print information about bookmark BM.
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BM should be a list containing the url and name of the bookmark."
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(destructuring-bind (url name) bm
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(format t "~A~%~A~%~%" url name)))
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(defun version-command (args)
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"Display clark's version number."
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(format t "clark version ~A~%" *version*))
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(defun clark (args)
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"Main function.
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Connect to the database, parse command-line arguments, execute and
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then disconnect."
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(check-db "test2.db")
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(if (> (length args) 1)
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(let* ((cmd-name (make-command-name (cadr args))))
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(when (fboundp cmd-name) (funcall cmd-name (cdr args))))
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(map nil #'print-bookmark (get-bookmarks)))
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(disconnect *db*))
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