profiles: Add 'manifest->code'.
* guix/profiles.scm (manifest->code): New procedure.
* tests/profiles.scm ("manifest->code, simple")
("manifest->code, simple, versions")
("manifest->code, transformations"): New tests.
master
Ludovic Courtès
parent
73744725dd
commit
b41e21488f
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@ -1,5 +1,5 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
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;;; Copyright © 2014, 2016 Alex Kost <alezost@gmail.com>
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;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
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@ -107,6 +107,8 @@
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manifest-search-paths
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check-for-collisions
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manifest->code
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manifest-transaction
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manifest-transaction?
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manifest-transaction-install
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@ -667,6 +669,88 @@ including the search path specification for $PATH."
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(append-map manifest-entry-search-paths
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(manifest-entries manifest)))))
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(define* (manifest->code manifest
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#:key (entry-package-version (const "")))
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"Return an sexp representing code to build an approximate version of
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MANIFEST; the code is wrapped in a top-level 'begin' form. Call
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ENTRY-PACKAGE-VERSION to determine the version number to use in the spec for a
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given entry; it can be set to 'manifest-entry-version' for fully-specified
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version numbers, or to some other procedure to disambiguate versions for
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packages for which several versions are available."
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(define (entry-transformations entry)
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;; Return the transformations that apply to ENTRY.
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(assoc-ref (manifest-entry-properties entry) 'transformations))
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(define transformation-procedures
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;; List of transformation options/procedure name pairs.
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(let loop ((entries (manifest-entries manifest))
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(counter 1)
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(result '()))
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(match entries
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(() result)
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((entry . tail)
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(match (entry-transformations entry)
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(#f
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(loop tail counter result))
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(options
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(if (assoc-ref result options)
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(loop tail counter result)
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(loop tail (+ 1 counter)
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(alist-cons options
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(string->symbol
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(format #f "transform~a" counter))
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result)))))))))
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(define (qualified-name entry)
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;; Return the name of ENTRY possibly with "@" followed by a version.
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(match (entry-package-version entry)
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("" (manifest-entry-name entry))
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(version (string-append (manifest-entry-name entry)
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"@" version))))
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(if (null? transformation-procedures)
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`(begin ;simplest case
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(specifications->manifest
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(list ,@(map (lambda (entry)
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(match (manifest-entry-output entry)
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("out" (qualified-name entry))
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(output (string-append (qualified-name entry)
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":" output))))
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(manifest-entries manifest)))))
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(let* ((transform (lambda (options exp)
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(if (not options)
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exp
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(let ((proc (assoc-ref transformation-procedures
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options)))
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`(,proc ,exp))))))
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`(begin ;transformations apply
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(use-modules (guix transformations))
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,@(map (match-lambda
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((options . name)
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`(define ,name
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(options->transformation ',options))))
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transformation-procedures)
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(packages->manifest
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(list ,@(map (lambda (entry)
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(define options
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(entry-transformations entry))
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(define name
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(qualified-name entry))
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(match (manifest-entry-output entry)
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("out"
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(transform options
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`(specification->package ,name)))
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(output
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`(list ,(transform
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options
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`(specification->package ,name))
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,output))))
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(manifest-entries manifest))))))))
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;;;
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;;; Manifest transactions.
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@ -1,5 +1,5 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2014 Alex Kost <alezost@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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@ -154,6 +154,34 @@
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(manifest-entries (manifest-add (manifest '())
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(list guile-2.0.9 guile-2.0.9))))
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(test-equal "manifest->code, simple"
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'(begin
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(specifications->manifest (list "guile" "guile:debug" "glibc")))
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(manifest->code (manifest (list guile-2.0.9 guile-2.0.9:debug glibc))))
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(test-equal "manifest->code, simple, versions"
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'(begin
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(specifications->manifest (list "guile@2.0.9" "guile@2.0.9:debug"
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"glibc@2.19")))
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(manifest->code (manifest (list guile-2.0.9 guile-2.0.9:debug glibc))
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#:entry-package-version manifest-entry-version))
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(test-equal "manifest->code, transformations"
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'(begin
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(use-modules (guix transformations))
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(define transform1
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(options->transformation '((foo . "bar"))))
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(packages->manifest
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(list (transform1 (specification->package "guile"))
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(specification->package "glibc"))))
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(manifest->code (manifest (list (manifest-entry
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(inherit guile-2.0.9)
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(properties `((transformations
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. ((foo . "bar"))))))
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glibc))))
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(test-assert "manifest-perform-transaction"
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(let* ((m0 (manifest (list guile-2.0.9 guile-2.0.9:debug)))
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(t1 (manifest-transaction
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