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profiles: Add 'packages->manifest' procedure. 

* guix/profiles.scm (packages->manifest): New procedure.
This commit is contained in:
David Thompson 2015-05-18 07:51:56 -04:00
parent 7ea1432e22
commit 8404ed5c3e
1 changed files with 17 additions and 4 deletions
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13
guix/profiles.scm
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@ -80,6 +80,7 @@
profile-manifest profile-manifest
package->manifest-entry package->manifest-entry
packages->manifest
%default-profile-hooks %default-profile-hooks
profile-derivation profile-derivation
generation-number generation-number
@ -172,6 +173,18 @@ omitted or #f, use the first output of PACKAGE."
(dependencies (delete-duplicates deps)) (dependencies (delete-duplicates deps))
(search-paths (package-native-search-paths package))))) (search-paths (package-native-search-paths package)))))
(define (packages->manifest packages)
"Return a list of manifest entries, one for each item listed in PACKAGES.
Elements of PACKAGES can be either package objects or package/string tuples
denoting a specific output of a package."
(manifest
(map (match-lambda
((package output)
(package->manifest-entry package output))
(package
(package->manifest-entry package)))
packages)))
(define (manifest->gexp manifest) (define (manifest->gexp manifest)
"Return a representation of MANIFEST as a gexp." "Return a representation of MANIFEST as a gexp."
(define (entry->gexp entry) (define (entry->gexp entry)