From 97d615b1761c2054561057f6b56e2a0caed13aa4 Mon Sep 17 00:00:00 2001 From: Christopher Baines Date: Sat, 24 Apr 2021 06:43:46 +0100 Subject: inferior: Support querying package replacements. I'm looking at this to help with adding support for looking up package replacements to store in the Guix Data Service. * guix/inferior.scm (inferior-package-replacement): New procedure. * tests/inferior.scm ("inferior-package-replacement"): New test. --- guix/inferior.scm | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'guix/inferior.scm') diff --git a/guix/inferior.scm b/guix/inferior.scm index eb457f81f9..7c8e478f2a 100644 --- a/guix/inferior.scm +++ b/guix/inferior.scm @@ -90,6 +90,7 @@ inferior-package-native-search-paths inferior-package-transitive-native-search-paths inferior-package-search-paths + inferior-package-replacement inferior-package-provenance inferior-package-derivation @@ -462,6 +463,27 @@ package." (define inferior-package-transitive-native-search-paths (cut %inferior-package-search-paths <> 'package-transitive-native-search-paths)) +(define (inferior-package-replacement package) + "Return the replacement for PACKAGE. This will either be an inferior +package, or #f." + (match (inferior-package-field + package + '(compose (match-lambda + ((? package? package) + (let ((id (object-address package))) + (hashv-set! %package-table id package) + (list id + (package-name package) + (package-version package)))) + (#f #f)) + package-replacement)) + (#f #f) + ((id name version) + (inferior-package (inferior-package-inferior package) + name + version + id)))) + (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." -- cgit v1.2.3