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authorLudovic Courtès <ludo@gnu.org>2019-12-29 17:35:56 +0100
committerLudovic Courtès <ludo@gnu.org>2019-12-29 18:24:54 +0100
commit7a241c63503c81a0f9ed284c7cc66da058aa00cf (patch)
treeba88a37b0b4bd2fb09edb753f0ed1bb608e73a0a /guix/inferior.scm
parent975183a1c428198fe639fa37552ae069692b1f15 (diff)
inferior: Add 'inferior-package-provenance'.
* guix/inferior.scm (inferior-package-provenance): New procedure.
Diffstat (limited to 'guix/inferior.scm')
-rw-r--r--guix/inferior.scm14
1 files changed, 14 insertions, 0 deletions
diff --git a/guix/inferior.scm b/guix/inferior.scm
index 71dae89e92..c4969cd56a 100644
--- a/guix/inferior.scm
+++ b/guix/inferior.scm
@@ -82,6 +82,7 @@
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 @@ package."
(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