diff options
Diffstat (limited to 'guix/store.scm')
| -rw-r--r-- | guix/store.scm | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/guix/store.scm b/guix/store.scm index 290118d74b..2821cacdcc 100644 --- a/guix/store.scm +++ b/guix/store.scm @@ -85,6 +85,7 @@ %store-prefix store-path? + direct-store-path? derivation-path? store-path-package-name store-path-hash-part @@ -640,6 +641,14 @@ collected, and the number of bytes freed." ;; `isStorePath' in Nix does something similar. (string-prefix? (%store-prefix) path)) +(define (direct-store-path? path) + "Return #t if PATH is a store path, and not a sub-directory of a store path. +This predicate is sometimes needed because files *under* a store path are not +valid inputs." + (and (store-path? path) + (let ((len (+ 1 (string-length (%store-prefix))))) + (not (string-index (substring path len) #\/))))) + (define (derivation-path? path) "Return #t if PATH is a derivation path." (and (store-path? path) (string-suffix? ".drv" path))) |