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mode: <>2021-05-07 17:45:05 +0200
committerGuix Patches Tester <>2021-05-07 16:48:14 +0100
commit21c77e2de9296f8be1bcc985b540544a75f8b0d1 (patch)
parent646a722658876f5df755e678e62fa903ee7c85f0 (diff)
guix: search-paths: Add wrap-in-search-pathsseries-7868
1 files changed, 35 insertions, 0 deletions
diff --git a/guix/search-paths.scm b/guix/search-paths.scm
index 002e6342bb..34a632077c 100644
--- a/guix/search-paths.scm
+++ b/guix/search-paths.scm
@@ -18,6 +18,8 @@
(define-module (guix search-paths)
#:use-module (guix records)
+ #:use-module (guix profiles)
+ #:use-module (guix gexp)
#:use-module (guix build utils)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
@@ -35,6 +37,8 @@
+ esps->wrap-sexp
+ wrap-in-search-paths
@@ -96,6 +100,37 @@ a <search-path-specification> object."
(with-error-to-port (%make-void-port "w")
(lambda () exp)))
+(define (esps->wrap-sexp esps)
+ "Return a list '(VARIABLE POSITION (STRING)) as expected by wrap-program, converted from the evaluated search-path-specification ESPS.
+ An evaluated search-path-specification is the type of things returned in a list by evaluate-search-paths: (sps . string) couples.
+ We do abuse wrap-program a bit, because it expects a list of directories, and the string we return is already a concatenation of the relevant directories. There would be no point in splitting it again and then having wrap-program joining it again, so we just pass it as is."
+ (match esps
+ ((sps . str) `(,(search-path-specification-variable sps) = (,str)))))
+(define (wrap-in-search-paths exec packages)
+ "Wrap EXEC in a script that will set the search paths to the values needed by the list of package PACKAGES."
+ (define (reconstruct-sps sps)
+ "Return a G-exp that evaluates, on the build strata, to the search-path-specification SPS."
+ #~(search-path-specification
+ (variable #$(search-path-specification-variable sps))
+ (files (list #$@(search-path-specification-files sps)))
+ (separator #$(search-path-specification-separator sps))
+ (file-type (quote #$(search-path-specification-file-type sps)))
+ (file-pattern #$(search-path-specification-file-pattern sps))))
+ (define (reconstruct-sps-list spsl)
+ "Return a G-exp that evaluates, on the build strata, to the list of search-path-specifications SPSL."
+ #~(list #$@(map reconstruct-sps spsl)))
+ (let ((manifest (packages->manifest packages)))
+ #~(apply wrap-program #$exec
+ (map esps->wrap-sexp
+ (evaluate-search-paths
+ #$(reconstruct-sps-list (manifest-search-paths manifest))
+ (list #$@(map manifest-entry-item (manifest-transitive-entries manifest))))))))
;; XXX: This procedure used to be in (guix utils) but since we want to be able
;; to use (guix search-paths) on the build side, we want to avoid the
;; dependency on (guix utils), and so this procedure is back here for now.