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inferior: Add 'inferior-package-provenance'.

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* guix/inferior.scm (inferior-package-provenance): New procedure.
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Ludovic Courtès 2019-12-29 17:35:56 +01:00
parent 975183a1c4
commit 7a241c6350
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guix/inferior.scm
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@ -82,6 +82,7 @@ (define-module (guix inferior)
inferior-package-native-search-paths
inferior-package-transitive-native-search-paths
inferior-package-search-paths
inferior-package-provenance
inferior-package-derivation
inferior-package->manifest-entry
@ -416,6 +417,19 @@ (define inferior-package-search-paths
(define inferior-package-transitive-native-search-paths
(cut %inferior-package-search-paths <> 'package-transitive-native-search-paths))
(define (inferior-package-provenance package)
"Return a \"provenance sexp\" for PACKAGE, an inferior package. The result
is similar to the sexp returned by 'package-provenance' for regular packages."
(inferior-package-field package
'(let* ((describe
(false-if-exception
(resolve-interface '(guix describe))))
(provenance
(false-if-exception
(module-ref describe
'package-provenance))))
(or provenance (const #f)))))
(define (proxy client backend) ;adapted from (guix ssh)
"Proxy communication between CLIENT and BACKEND until CLIENT closes the
connection, at which point CLIENT is closed (both CLIENT and BACKEND must be