X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/profile/blobdiff_plain/77619173fdf73ef9835c877f6376bcfc25733c28..4e7092a3248d55e4af0b45c38a67e3a7998b59a7:/dot/lisp-init.lisp

diff --git a/dot/lisp-init.lisp b/dot/lisp-init.lisp
index ca38a70..8b0e3f9 100644
--- a/dot/lisp-init.lisp
+++ b/dot/lisp-init.lisp
@@ -1,25 +1,42 @@
+;;; -*-lisp-*-
+
 (cl:defpackage #:mdw-hacks
-  (:use #:cl)
-  (:export #:crank-swank))
+  (:use #:cl))
 (cl:defparameter mdw-hacks::*previous-package* cl:*package*)
 (cl:in-package #:mdw-hacks)
 
+;; Shut up.
+(setf *load-verbose* nil
+      *compile-verbose* nil)
+
+#+cmu
+(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)))))
+
 ;; Obtain ASDF from somewhere.
-#+sbcl (require :asdf)
-#+clisp (let ((*compile-verbose* nil)
-	      (*load-verbose* nil))
-	  (handler-bind ((warning (lambda (cond)
-				    (declare (ignore cond))
-				    (muffle-warning))))
-	    (load "/usr/share/common-lisp/source/cl-asdf/asdf.lisp"
-		  :verbose nil)
-	    (funcall (find-symbol "LOAD-SYSTEM" :asdf) :asdf
-		     :verbose nil)))
+(require "asdf")
 
-;; Shut up.
-(setf *load-verbose* nil)
-(setf *compile-verbose* nil)
-#+cmu (setf *gc-verbose* nil)
+;; Get CMU CL to quit on EOF.
+#+cmu
+(setf ext:*batch-mode* t)
 
 ;; Tell SBCL where to find its source source.
 #+sbcl
@@ -39,7 +56,33 @@ (let* ((homestring (or #+sbcl (sb-ext:posix-getenv "HOME")
 	  ("CL:SYSTEMS;**;*.*.*" #p"/usr/share/common-lisp/systems/**/*.*"))))
 
 ;; Various fixings.
-#+clisp (setf custom:*parse-namestring-ansi* t)
+#+clisp
+(setf custom:*parse-namestring-ansi* t)
+
+;; 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*))
 
 ;; Shebang.
 (set-dispatch-macro-character
@@ -49,6 +92,7 @@ (set-dispatch-macro-character
    (values (read-line stream))))
 
 ;; Start up swank.
+(export 'crank-swank)
 (defun crank-swank (&rest args)
   (let ((swank (find-package "SWANK")))
     (unless swank
@@ -58,7 +102,9 @@ (defun crank-swank (&rest args)
     (set (find-symbol "*GLOBAL-DEBUGGER*" swank) nil)
     (apply (find-symbol "CREATE-SERVER" swank) args)))
 
-#+asdf (setf asdf:*compile-file-failure-behaviour* :warn)
+;; Treat warnings as, err, warnings.
+#+asdf
+(setf asdf:*compile-file-failure-behaviour* :warn)
 
 ;; Done.
 (pushnew :mdw *features*)