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| author | Ludovic Courtès <ludo@gnu.org> | 2019-06-19 21:49:22 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2019-06-19 22:56:27 +0200 |
| commit | 2ef22a9f371276be0b1474c512f125d1f0d0c064 (patch) | |
| tree | 2e28fb3f092f0cb3648bcc01c6d2f427c28cae98 /guix/derivations.scm | |
| parent | 74247b80e5f8e1b385dbcc82df4851c2ee5792f3 (diff) | |
derivations: Add 'derivation-input-derivation'.
* guix/derivations.scm (derivation-input-derivation): New procedure.
(derivation-prerequisites): Use it.
Diffstat (limited to 'guix/derivations.scm')
| -rw-r--r-- | guix/derivations.scm | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/guix/derivations.scm b/guix/derivations.scm index cad77bdb06..8145d51143 100644 --- a/guix/derivations.scm +++ b/guix/derivations.scm @@ -62,6 +62,7 @@ <derivation-input> derivation-input? derivation-input-path + derivation-input-derivation derivation-input-sub-derivations derivation-input-output-paths valid-derivation-input? @@ -152,6 +153,10 @@ (path derivation-input-path) ; store path (sub-derivations derivation-input-sub-derivations)) ; list of strings +(define (derivation-input-derivation input) + "Return the <derivation> object INPUT refers to." + (read-derivation-from-file (derivation-input-path input))) + (set-record-type-printer! <derivation> (lambda (drv port) (format port "#<derivation ~a => ~a ~a>" @@ -243,9 +248,7 @@ result is the set of prerequisites of DRV not already in valid." (fold2 loop (append inputs result) (fold set-insert input-set inputs) - (map (lambda (i) - (read-derivation-from-file (derivation-input-path i))) - inputs))))) + (map derivation-input-derivation inputs))))) (define (offloadable-derivation? drv) "Return true if DRV can be offloaded, false otherwise." |