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utils: 'current-source-directory' returns the absolute directory name.

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* guix/utils.scm (current-source-directory): When FILE-NAME is relative,
use 'search-path' to determine the absolute file name.
This commit is contained in:
Ludovic Courtès 2016-06-16 22:24:14 +02:00
parent 5dbae738f0
commit d4dd37fc46
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1 changed files with 8 additions and 2 deletions
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guix/utils.scm
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@ -704,12 +704,18 @@ output port, and PROC's result is returned."
(define-syntax current-source-directory
(lambda (s)
"Return the current directory name or #f if it could not be determined."
"Return the absolute name of the current directory, or #f if it could not
be determined."
(syntax-case s ()
((_)
(match (assq 'filename (syntax-source s))
(('filename . (? string? file-name))
(dirname file-name))
;; If %FILE-PORT-NAME-CANONICALIZATION is 'relative, then FILE-NAME
;; can be relative. In that case, we try to find out the absolute
;; file name by looking at %LOAD-PATH.
(if (string-prefix? "/" file-name)
(dirname file-name)
(and=> (search-path %load-path file-name) dirname)))
(_
#f))))))