How to change SBCL's current directory?

Question

It is very easy to change CLisp's current working directory:

>cat ~/.clisprc.lisp 
;;; The following lines added by ql:add-to-init-file:
#-quicklisp
(let ((quicklisp-init (merge-pathnames "quicklisp/setup.lisp" (user-homedir-pathname))))
  (when (probe-file quicklisp-init)
  (load quicklisp-init)))

(cd "/media/E/www/qachina/db/doc/money")
(load "money")

However, it seems there is no cd similar function in SBCL. How can this be done with SBCL?

score 18 · Answer 1 · answered Oct 07 '13 at 08:55

18

CL-USER> (sb-posix:chdir "/home/apugachev")
0
CL-USER> (sb-posix:getcwd)
"/home/apugachev"
CL-USER> (sb-posix:chdir "/tmp/")
0
CL-USER> (sb-posix:getcwd)
"/tmp"

answered Oct 07 '13 at 08:55

peroksid

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9

This doesn't seem to change the directory that sbcl looks in when you call `(load ...)`. – daveloyall Apr 08 '15 at 23:40
5

@daveloyall I think that observation is worth its own top-level question. It's puzzling behavior and I don't know the answer, either (I just work around it by using full path names all the time). – Reb.Cabin Jan 23 '16 at 23:30
you could just do `(load (concatenate 'string (sb-posix:getcwd) "/" "my-foo.lisp"))`. Pretty clumsy, I know, but a little less brittle. – Reb.Cabin Feb 06 '16 at 18:26

score 13 · Answer 2 · edited Jan 08 '18 at 01:32

13

(setf *default-pathname-defaults* #P"/New/Absolute/Path/")

edited Jan 08 '18 at 01:32

xor-xor

70
5

answered Jul 11 '16 at 19:10

Kripa R

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score 9 · Answer 3 · answered May 20 '17 at 14:47

9

Right now, better answer is: use (uiop:chdir "some/path").

Or you can use this function to change directory temporarily:

(uiop:call-with-current-directory "some/path" (lambda () (do-the-job))

Or this macro for more convenient way:

(uiop:with-current-directory ("some/path") (do-the-job))

answered May 20 '17 at 14:47

Alexander Artemenko

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Note: uiop package is available in most CL implementations directly. No need to load using asdf / quicklisp. The above code will run directly. – Capstone Jun 06 '19 at 08:16
1

I'm using SBCL 2.0.0 in Windows and had to `(require "asdf")` to use uiop. It's the case that nothing had to be installed – Heitor Chang Aug 22 '20 at 23:22

score 8 · Answer 4 · edited Jan 08 '18 at 11:09

8

Had the same question. Turns out

(setf *default-pathname-defaults* (truename "./subdir"))

changes load path to subdir. If you don't want relative path, then

(setf *default-pathname-defaults* (truename "/absolute/path"))

edited Jan 08 '18 at 11:09

xor-xor

70
5

answered Oct 12 '16 at 00:40

Gerard Domek

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score 0 · Answer 5 · answered Oct 23 '11 at 03:35

0

Now i use rlwrap to run SBCL and solves this problem

$"cat ~/bin/sb"
breakchars="(){}[],^%$#@\"\";:''|\\"

cd /media/E/www/qachina/db/doc/money/
exec rlwrap --remember -c -b "$breakchars"  -f "$HOME"/.sbcl_completions sbcl "$@"

then run sb.

answered Oct 23 '11 at 03:35

z_axis

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Is it simpler than use of chdir? – peroksid Nov 08 '13 at 08:05

How to change SBCL's current directory?

5 Answers5

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