Hello guile list,
I am new to guile and scheme so excuse my poor coding. Anyway I am faced with
a little problem with guile 1.8.1. I am writing a function that collects all
sub-directory from a given directory. To do this I am using the opendir and
readdir functions. However it happens that if I am not cd'ing into the
directory I want to browse, the following function failed. Is that a normal
behavior?
(define gather-dirs
(lambda (path)
;; with the following line commented out the function will fail browsing
;; directories other than the current one
;;(chdir path)
(let ((cdir (opendir path))
(l '()))
(do ((entry (readdir cdir) (readdir cdir)))
((eof-object? entry) l)
(if (directory? entry)
(set! l (cons entry l)))))))
(define directory?
(lambda (x)
(eq? (stat:type (stat x)) 'directory)))
Here is the error I get back:
ERROR: In procedure stat:
ERROR: No such file or directory: ".bb"
Note: '.bb' is a folder that exist in the folder I want to browse but not in
the current one. So basicaly 'readdir' and 'opendir' did their job fine but
when I am trying to stat on the found entry it fails (in the 'directory?'
function).
Investigating further I saw that 'readdir' just return a string with the name
of the folder entry, that is a name relative to the folder opened
by 'opendir'. Say I am browsing '/home/bob' folder then readdir will return
me as an entry "bin" and not "/home/bob/bin". Hence 'stat' is failing if
there is no 'bin' folder in current folder. Is that correct?
Now how could one browse a folder and stat on each entry without having to
change to that folder?
Thanks in advance for your help,
jc
