X-Git-Url: https://git.distorted.org.uk/~mdw/profile/blobdiff_plain/1865da1722c24e56e89f4ea5f7e442798198e87c..01ad59de5f6d5c9b2a81ffede8a00e4919e38f3d:/dot/lisp-init.lisp

diff --git a/dot/lisp-init.lisp b/dot/lisp-init.lisp
index 9795a03..64faf2b 100644
--- a/dot/lisp-init.lisp
+++ b/dot/lisp-init.lisp
@@ -10,40 +10,126 @@
       *compile-verbose* nil)
 
 #+cmu
-(setf *gc-verbose* nil)
+(setf ext:*gc-verbose* nil
+      ext:*require-verbose* nil)
+
+#+ecl
+(let ((old-output *standard-output*)
+      (old-prompt si:*tpl-prompt-hook*))
+  ;; There doesn't seem to be a good way to do this, so we do it the bad
+  ;; way.  Since the herald is printed to `*standard-outout*', we set (not
+  ;; bind!) that to a bit bucket, and then arrange to restore it just before
+  ;; the first REPL prompt is written.
+  ;;
+  ;; One more awful part is that, having intercepted the prompt hook, I need
+  ;; to restore and invoke the old version, and there isn't a clean way to do
+  ;; this.
+  (when (<= (ext:argc) 1)
+    (setf *standard-output* (make-broadcast-stream)
+	  si:*tpl-prompt-hook* (lambda ()
+				 (setf *standard-output* old-output
+				       si:*tpl-prompt-hook* old-prompt)
+				 (si::tpl-prompt)))))
+
+#+ccl
+(setf ccl::*inhibit-greeting* t)
+
+#+abcl
+(setf ext:*warn-on-redefinition* nil)
 
 ;; Obtain ASDF from somewhere.
 (require "asdf")
 
+;; Get CMU CL and CCL to quit on EOF.
+#+cmu
+(setf ext:*batch-mode* t)
+#+ccl
+(setf ccl:*quit-on-eof* t)
+
 ;; Tell SBCL where to find its source source.
 #+sbcl
 (sb-ext:set-sbcl-source-location #p"/usr/share/sbcl-source/")
 
-;; Tell some Lisps about my home directory.
-#+(and unix (or sbcl clisp))
+;; Get SBCL to shut up about package variance.  This is a standard result of
+;; my approach to symbol exports, and I don't care.
+#+sbcl
+(progn
+  (unless (fboundp 'real-note-package-variance)
+    (setf (symbol-function 'real-note-package-variance)
+	    (symbol-function 'sb-impl::note-package-variance)))
+  (handler-bind ((sb-ext:package-lock-violation #'continue)
+		 (sb-kernel:redefinition-warning #'muffle-warning))
+    (defun sb-impl::note-package-variance
+	(&rest args &key package &allow-other-keys)
+      (let ((ignore (getf sb-ext:*on-package-variance* :ignore)))
+	(unless (or (eq ignore t)
+		    (and (listp ignore)
+			 (member (package-name package) ignore)))
+	  (apply #'real-note-package-variance args)))))
+  (setf sb-ext:*on-package-variance* '(:ignore t)))
+
+;; Tell some Lisps about my home directory.  CMU CL already has a search list
+;; which does the same job, and CCL sets up a logical-pathname host.
+#+(and unix (or sbcl clisp ecl abcl))
 (let* ((homestring (or #+sbcl (sb-ext:posix-getenv "HOME")
-		       #+clisp (ext:getenv "HOME")
-		       #+cmu (unix:unix-getenv "HOME")
+		       #+(or clisp ecl abcl) (ext:getenv "HOME")
+		       #+abcl (java:jstatic "getProperty"
+					    "java.lang.System"
+					    "user.home")
 		       "/home/mdw"))
        (home (pathname (concatenate 'string homestring "/"))))
   (setf (logical-pathname-translations "HOME")
-	`(("HOME:**;*.*.*" ,(merge-pathnames "**/*.*" home nil)))
-	(logical-pathname-translations "CL")
-	'(("CL:SOURCE;**;*.*.*" #p"/usr/share/common-lisp/source/**/*.*")
-	  ("CL:SYSTEMS;**;*.*.*" #p"/usr/share/common-lisp/systems/**/*.*"))))
+	  `(("HOME:**;*.*.*" ,(merge-pathnames "**/*.*" home nil)))))
+(when (#.(car '(#+clisp ext:probe-directory
+		probe-file))
+	 #p"/usr/share/common-lisp/")
+  (setf (logical-pathname-translations "CL")
+	  '(("CL:SOURCE;**;*.*.*" #p"/usr/share/common-lisp/source/**/*.*")
+	    ("CL:SYSTEMS;**;*.*.*" #p"/usr/share/common-lisp/systems/**/*.*"))))
 
 ;; Various fixings.
 #+clisp
 (setf custom:*parse-namestring-ansi* t)
 
-;; Shebang.
+;; CLisp history.
+#+(and clisp readline)
+(progn
+  (export '(*history-file* *history-size*))
+  (defvar *history-file* (format nil "~A/.clisp-history" (ext:getenv "HOME"))
+    "File to preserve the REPL history.")
+  (defvar *history-size* 1000)
+  (unless (and (probe-file *history-file*) nil)
+    (let (old-umask stream)
+      ;; Ugh.  There's no proper open(2) veneer.  Play with umask(2) to avoid
+      ;; a window in which an adversary can open the file.
+      (unwind-protect
+	   (setf old-umask (os:umask #o077)
+		 stream (open *history-file*
+			      :direction :output
+			      :if-exists :overwrite
+			      :if-does-not-exist :create))
+	(when stream (close stream))
+	(when old-umask (os:umask old-umask)))))
+  (readline:read-history *history-file*)
+  (if *history-size* (readline:stifle-history *history-size*)
+      (readline:unstifle-history))
+  (push (lambda () (readline:write-history *history-file*))
+	custom:*fini-hooks*))
+
+;; Don't choke on shebang lines.  This isn't here so that we can run Lisp
+;; scripts like proper Unix programs: `cl-launch' or `runlisp' do that.  It's
+;; here so that we can `load' a script into a running Lisp without it choking
+;; on the shebang.
 (set-dispatch-macro-character
  #\# #\!
  (lambda (stream char arg)
    (declare (ignore char arg))
    (values (read-line stream))))
 
-;; Start up swank.
+;; Use double-precision by default.
+(setf *read-default-float-format* 'double-float)
+
+;; Start up Swank.
 (export 'crank-swank)
 (defun crank-swank (&rest args)
   (let ((swank (find-package "SWANK")))