home: import: Avoid duplication of 'manifest->code'.
* guix/scripts/home/import.scm (manifest->code): Remove.
(manifest+configuration-files->code): New procedure.
(import-manifest): Use 'manifest+configuration-files->code' instead of
'manifest->code'.
* tests/home-import.scm (eval-test-with-home-environment): Likewise.
(match-home-environment-transformations): New procedure.
("manifest->code: No services, package transformations"): New test.
master
Ludovic Courtès
parent
96728c54df
commit
6f4ca78761
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@ -1,6 +1,7 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2021 Xinglu Chen <public@yoctocell.xyz>
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;;; Copyright © 2021 Andrew Tropin <andrew@trop.in>
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;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -31,7 +32,7 @@
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#:export (import-manifest
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;; For tests.
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manifest->code))
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manifest+configuration-files->code))
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;;; Commentary:
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;;;
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@ -105,146 +106,49 @@ in CONFIGURATION-DIRECTORY."
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(map (lambda (proc) (proc configuration-directory)) configurations))
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;; Based on `manifest->code' from (guix profiles)
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;; MAYBE: Upstream it?
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(define* (manifest->code manifest destination-directory
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#:key
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(entry-package-version (const ""))
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(home-environment? #f))
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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. If
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HOME-ENVIRONMENT? is #t, return an <home-environment> definition.
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Call ENTRY-PACKAGE-VERSION to determine the version number to use in
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the spec for a given entry; it can be set to 'manifest-entry-version'
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for fully-specified version numbers, or to some other procedure to
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disambiguate versions for packages for which several versions are
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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 (manifest+configuration-files->code manifest
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configuration-directory)
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"Read MANIFEST and the user's configuration files listed in
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%FILES+CONFIGURATIONS-ALIST, and return a 'home-environment' sexp. Copy the
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user's files to CONFIGURATION-DIRECTORY; the generated sexp refers to them."
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(match (manifest->code manifest
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#:entry-package-version
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manifest-entry-version-prefix)
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(('begin ('use-modules profile-modules ...)
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definitions ... ('packages->manifest packages))
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(match (configurations+modules configuration-directory)
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(((services . modules) ...)
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`(begin
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(use-modules (gnu home)
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(gnu packages)
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(gnu services)
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,@(delete-duplicates
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(append profile-modules (concatenate modules))))
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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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,@definitions
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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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(home-environment
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(packages ,packages)
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(services (list ,@services)))))))
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(('begin ('specifications->manifest packages))
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(match (configurations+modules configuration-directory)
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(((services . modules) ...)
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`(begin
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(use-modules (gnu home)
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(gnu packages)
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(gnu services)
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,@(delete-duplicates (concatenate modules)))
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(if (null? transformation-procedures)
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(let ((specs (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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(if home-environment?
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(let ((configurations+modules
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(configurations+modules destination-directory)))
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`(begin
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(use-modules (gnu home)
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(gnu packages)
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(gnu services)
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,@((compose delete-duplicates concatenate)
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(map cdr configurations+modules)))
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,(home-environment-template
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#:specs specs
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#:services (map first configurations+modules))))
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`(begin
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(use-modules (gnu packages))
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(specifications->manifest
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(list ,@specs)))))
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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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(packages (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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(transformations (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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(if home-environment?
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(let ((configurations+modules
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(configurations+modules destination-directory)))
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`(begin
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(use-modules (guix transformations)
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(gnu home)
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(gnu packages)
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(gnu services)
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,@((compose delete-duplicates concatenate)
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(map cdr configurations+modules)))
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,@transformations
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,(home-environment-template
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#:packages packages
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#:services (map first configurations+modules))))
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`(begin
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(use-modules (guix transformations)
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(gnu packages))
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,@transformations
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(packages->manifest
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(list ,@packages)))))))
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(define* (home-environment-template #:key (packages #f) (specs #f) services)
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"Return an S-exp containing a <home-environment> declaration
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containing PACKAGES, or SPECS (package specifications), and SERVICES."
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`(home-environment
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(packages
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,@(if packages
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`((list ,@packages))
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`((map specification->package
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(list ,@specs)))))
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(services (list ,@services))))
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(home-environment
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(packages (map specification->package ,packages))
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(services (list ,@services)))))))))
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(define* (import-manifest
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manifest destination-directory
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#:optional (port (current-output-port)))
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"Write to PORT a <home-environment> corresponding to MANIFEST."
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(match (manifest->code manifest destination-directory
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#:entry-package-version manifest-entry-version-prefix
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#:home-environment? #t)
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(match (manifest+configuration-files->code manifest
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destination-directory)
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(('begin exp ...)
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(format port (G_ "\
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;; This \"home-environment\" file can be passed to 'guix home reconfigure'
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@ -87,10 +87,8 @@ corresponding file."
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(create-temporary-home files-alist)
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(setenv "HOME" %temporary-home-directory)
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(mkdir-p %temporary-home-directory)
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(let* ((home-environment (manifest->code manifest %destination-directory
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#:entry-package-version
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manifest-entry-version-prefix
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#:home-environment? #t))
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(let* ((home-environment (manifest+configuration-files->code
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manifest %destination-directory))
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(result (matcher home-environment)))
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(delete-file-recursively %temporary-home-directory)
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result))
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@ -108,6 +106,22 @@ corresponding file."
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('services
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('list)))))
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(define-home-environment-matcher match-home-environment-transformations
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('begin
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('use-modules
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('gnu 'home)
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('gnu 'packages)
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('gnu 'services)
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('guix 'transformations))
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('define transform ('options->transformation _))
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('home-environment
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('packages
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('list (transform ('specification->package "guile@2.0.9"))
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('specification->package "gcc")
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('specification->package "glibc@2.19")))
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('services ('list)))))
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(define-home-environment-matcher match-home-environment-no-services-nor-packages
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('begin
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('use-modules
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@ -141,12 +155,23 @@ corresponding file."
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('list ('local-file "/tmp/guix-config/.bashrc"
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"bashrc"))))))))))
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(test-assert "manifest->code: No services"
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(eval-test-with-home-environment
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'()
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(make-manifest (list guile-2.0.9 gcc glibc))
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match-home-environment-no-services))
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(test-assert "manifest->code: No services, package transformations"
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(eval-test-with-home-environment
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'()
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(make-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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gcc glibc))
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match-home-environment-transformations))
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(test-assert "manifest->code: No packages nor services"
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(eval-test-with-home-environment
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'()
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Reference in New Issue