derivations: 'derivation' preserves pointer equality.
authorLudovic Courtès <ludo@gnu.org>
Sun, 23 Jun 2019 09:40:16 +0000 (11:40 +0200)
committerLudovic Courtès <ludo@gnu.org>
Thu, 27 Jun 2019 09:14:41 +0000 (11:14 +0200)
commitfd951cd543d9f4d3ecfa4570e51797f84e79068b
tree1786d70a803eba0122ebafd33c3ad77a91283e92
parent5cf4b26d52bcea382d98fb4becce89be9ee37b55
derivations: 'derivation' preserves pointer equality.

* guix/derivations.scm (derivation): Check if FILE is already in
%DERIVATION-CACHE and return it if it is.
guix/derivations.scm