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Diffstat (limited to 'guix/utils.scm')
| -rw-r--r-- | guix/utils.scm | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/guix/utils.scm b/guix/utils.scm index 9bad06d52f..ed1a418cca 100644 --- a/guix/utils.scm +++ b/guix/utils.scm @@ -731,17 +731,19 @@ environment variable name like \"XDG_CONFIG_HOME\"; SUFFIX is a suffix like ;;; Source location. ;;; -(define (absolute-dirname file) - "Return the absolute name of the directory containing FILE, or #f upon +(define absolute-dirname + ;; Memoize to avoid repeated 'stat' storms from 'search-path'. + (mlambda (file) + "Return the absolute name of the directory containing FILE, or #f upon failure." - (match (search-path %load-path file) - (#f #f) - ((? string? file) - ;; If there are relative names in %LOAD-PATH, FILE can be relative and - ;; needs to be canonicalized. - (if (string-prefix? "/" file) - (dirname file) - (canonicalize-path (dirname file)))))) + (match (search-path %load-path file) + (#f #f) + ((? string? file) + ;; If there are relative names in %LOAD-PATH, FILE can be relative and + ;; needs to be canonicalized. + (if (string-prefix? "/" file) + (dirname file) + (canonicalize-path (dirname file))))))) (define-syntax current-source-directory (lambda (s) |