/[slime]/slime/swank-loader.lisp
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Contents of /slime/swank-loader.lisp

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Revision 1.5 - (show annotations)
Sun Nov 23 05:00:13 2003 UTC (10 years, 4 months ago) by lgorrie
Branch: MAIN
Changes since 1.4: +4 -2 lines
* swank-sbcl.lisp (describe-symbol-for-emacs): Don't ask for
(documentation SYM 'class), CLHS says there isn't any 'class
documentation (and SBCL warns).

* swank.lisp, swank-cmucl.lisp, swank-sbcl.lisp: Refactored
interface through swank-backend.lisp for: swank-compile-file,
swank-compile-string, describe-symbol-for-emacs (apropos),
macroexpand-all, arglist-string.

* swank-backend.lisp: New file defining the interface between
swank.lisp and the swank-*.lisp implementation files.
1 ;;;; -*- Mode: lisp; indent-tabs-mode: nil -*-
2 ;;;
3 ;;; swank-loader.lisp --- Compile and load the Slime backend.
4 ;;;
5 ;;; Created 2003, James Bielman <jamesjb@jamesjb.com>
6 ;;;
7 ;;; This code has been placed in the Public Domain. All warranties
8 ;;; are disclaimed.
9 ;;;
10 ;;; $Id: swank-loader.lisp,v 1.5 2003/11/23 05:00:13 lgorrie Exp $
11 ;;;
12
13 (defpackage :swank-loader
14 (:use :common-lisp))
15
16 (in-package :swank-loader)
17
18 (defun make-swank-pathname (name &optional (type "lisp"))
19 "Return a pathname with name component NAME in the Slime directory."
20 (merge-pathnames name
21 (make-pathname
22 :type type
23 :directory
24 (pathname-directory
25 (or *compile-file-pathname* *load-pathname*
26 *default-pathname-defaults*)))))
27
28 (defparameter *sysdep-pathnames*
29 (mapcar #'make-swank-pathname
30 #+cmu '("swank-cmucl")
31 #+sbcl '("swank-sbcl" "swank-gray")
32 #+openmcl '("swank-openmcl" "swank-gray")))
33
34 (defparameter *swank-pathname* (make-swank-pathname "swank"))
35
36 (defun file-newer-p (new-file old-file)
37 "Returns true if NEW-FILE is newer than OLD-FILE."
38 (> (file-write-date new-file) (file-write-date old-file)))
39
40 (defun compile-files-if-needed-serially (files)
41 "Compile each file in FILES if the source is newer than
42 its corresponding binary, or the file preceding it was
43 recompiled."
44 (let ((needs-recompile nil))
45 (dolist (source-pathname files)
46 (let ((binary-pathname (compile-file-pathname source-pathname)))
47 (handler-case
48 (progn
49 (when (or needs-recompile
50 (not (probe-file binary-pathname))
51 (file-newer-p source-pathname binary-pathname))
52 (format t "~&;; Compiling ~A...~%" source-pathname)
53 (compile-file source-pathname)
54 (setq needs-recompile t))
55 (load binary-pathname))
56 (error ()
57 ;; If an error occurs compiling, load the source instead
58 ;; so we can try to debug it.
59 (load source-pathname)))))))
60
61 (defun user-init-file ()
62 "Return a the name of the user init file or nil."
63 (let ((filename (format nil "~A/.swank.lisp"
64 (namestring (user-homedir-pathname)))))
65 (cond ((probe-file filename) filename)
66 (t nil))))
67
68 (compile-files-if-needed-serially
69 (list* (make-swank-pathname "swank-backend") *swank-pathname*
70 *sysdep-pathnames*))
71
72 (when (user-init-file)
73 (load (user-init-file)))
74

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