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02/03: utils: Add 'symbolic-link?'.
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From: |
Ludovic Courtès |
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Subject: |
02/03: utils: Add 'symbolic-link?'. |
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Date: |
Mon, 01 Dec 2014 15:52:12 +0000 |
civodul pushed a commit to branch core-updates
in repository guix.
commit 9741aca9a586231423712b99d52346bf3dcdd4e3
Author: Ludovic Courtès <address@hidden>
Date: Mon Dec 1 15:46:10 2014 +0100
utils: Add 'symbolic-link?'.
* guix/build/utils.scm (symbolic-link?): New procedure.
---
guix/build/utils.scm | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/guix/build/utils.scm b/guix/build/utils.scm
index 737976e..de1cfce 100644
--- a/guix/build/utils.scm
+++ b/guix/build/utils.scm
@@ -35,6 +35,7 @@
directory-exists?
executable-file?
+ symbolic-link?
call-with-ascii-input-file
elf-file?
ar-file?
@@ -93,6 +94,10 @@
(and s
(not (zero? (logand (stat:mode s) #o100))))))
+(define (symbolic-link? file)
+ "Return #t if FILE is a symbolic link (aka. \"symlink\".)"
+ (eq? (stat:type (lstat file)) 'symlink))
+
(define (call-with-ascii-input-file file proc)
"Open FILE as an ASCII or binary file, and pass the resulting port to
PROC. FILE is closed when PROC's dynamic extent is left. Return the