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guix: import: stackage: Fix JSON accessors.

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* guix/import/stackage.scm (lts-info-ghc-version, lst-info-packages): Use
assoc-ref for accessing parsed JSON.
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Timothy Sample 2018-08-28 09:45:36 -04:00 • committed by Ricardo Wurmus
parent bb6419f374
commit 127586adfb
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1 changed files with 4 additions and 7 deletions
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guix/import/stackage.scm
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@ -43,15 +43,12 @@
(define (lts-info-ghc-version lts-info) (define (lts-info-ghc-version lts-info)
"Retruns the version of the GHC compiler contained in LTS-INFO." "Retruns the version of the GHC compiler contained in LTS-INFO."
(match lts-info (and=> (assoc-ref lts-info "snapshot")
((("snapshot" ("ghc" . version) _ _) _) version) (cut assoc-ref <> "ghc")))
(_ #f)))
(define (lts-info-packages lts-info) (define (lts-info-packages lts-info)
"Returns the alist of packages contained in LTS-INFO." "Retruns the alist of packages contained in LTS-INFO."
(match lts-info (or (assoc-ref lts-info "packages") '()))
((("packages" pkg ...) . _) pkg)
(_ '())))
(define (leave-with-message fmt . args) (define (leave-with-message fmt . args)
(raise (condition (&message (message (apply format #f fmt args)))))) (raise (condition (&message (message (apply format #f fmt args))))))