summaryrefslogtreecommitdiff
path: root/guix/build/utils.scm
diff options
context:
space:
mode:
authorLudovic Courtès <ludo@gnu.org>2015-08-30 14:38:10 +0200
committerLudovic Courtès <ludo@gnu.org>2015-08-30 18:38:08 +0200
commitb7c7c03eb5e37fc3455e4e17b0898ffc4bca29c3 (patch)
treea9c2d06e8cb6a9049f13246b6665c960f48bb13b /guix/build/utils.scm
parentd56f8d5e749496362d76bbbf364c8eba2260c6e5 (diff)
utils: Add 'strip-store-file-name'.
* guix/build/utils.scm (strip-store-file-name): New procedure. * guix/build/emacs-build-system.scm (store-directory->name-version): Remove. Update callers to use 'strip-store-file-name'. * gnu/packages/gcc.scm (make-libstdc++-doc)[arguments]: Use 'strip-store-file-name' instead of 'string-drop'.
Diffstat (limited to 'guix/build/utils.scm')
-rw-r--r--guix/build/utils.scm7
1 files changed, 7 insertions, 0 deletions
diff --git a/guix/build/utils.scm b/guix/build/utils.scm
index 16406930b5..b0abc69f0e 100644
--- a/guix/build/utils.scm
+++ b/guix/build/utils.scm
@@ -33,6 +33,7 @@
alist-delete)
#:export (%store-directory
store-file-name?
+ strip-store-file-name
parallel-job-count
directory-exists?
@@ -87,6 +88,12 @@
"Return true if FILE is in the store."
(string-prefix? (%store-directory) file))
+(define (strip-store-file-name file)
+ "Strip the '/gnu/store' and hash from FILE, a store file name. The result
+is typically a \"PACKAGE-VERSION\" string."
+ (string-drop file
+ (+ 34 (string-length (%store-directory)))))
+
(define parallel-job-count
;; Number of processes to be passed next to GNU Make's `-j' argument.
(make-parameter