X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/profile/blobdiff_plain/7914c3faf353b44e04868e58d4e3c92a545a80e6..c36efcdc0b2d92b02fd7224d4fc53cf5a7cb74e3:/dot/lisp-init.lisp

diff --git a/dot/lisp-init.lisp b/dot/lisp-init.lisp
index 0e3507a..54df25f 100644
--- a/dot/lisp-init.lisp
+++ b/dot/lisp-init.lisp
@@ -6,37 +6,91 @@ (cl:defparameter mdw-hacks::*previous-package* cl:*package*)
 (cl:in-package #:mdw-hacks)
 
 ;; Shut up.
-(setf *load-verbose* nil)
-(setf *compile-verbose* nil)
+(setf *load-verbose* nil
+      *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)))))
 
 ;; Obtain ASDF from somewhere.
 (require "asdf")
 
+;; Get CMU CL to quit on EOF.
+#+cmu
+(setf ext:*batch-mode* 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))
+;; Tell some Lisps about my home directory.  CMU CL already has a search list
+;; which does the same job.
+#+(and unix (or sbcl clisp ecl))
 (let* ((homestring (or #+sbcl (sb-ext:posix-getenv "HOME")
-		       #+clisp (ext:getenv "HOME")
-		       #+cmu (unix:unix-getenv "HOME")
+		       #+(or clisp ecl) (ext:getenv "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)