Fixes <http://bugs.gnu.org/22933>. * emacs/guix-main.scm (package-location-string): Rewrite to handle the case where 'packages-by-name' returns the empty list. Co-authored-by: Mathieu Lirzin <mthl@gnu.org>
		
			
				
	
	
		
			1107 lines
		
	
	
	
		
			40 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
			
		
		
	
	
			1107 lines
		
	
	
	
		
			40 KiB
		
	
	
	
		
			Scheme
		
	
	
	
	
	
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2014, 2015, 2016 Alex Kost <alezost@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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;;; GNU General Public License for more details.
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						||
;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Information about packages and generations is passed to the elisp
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;; side in the form of alists of parameters (such as ‘name’ or
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;; ‘version’) and their values.
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;; ‘entries’ procedure is the “entry point” for the elisp side to get
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;; information about packages and generations.
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;; Since name/version pair is not necessarily unique, we use
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;; `object-address' to identify a package (for ‘id’ parameter), if
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;; possible.  However for the obsolete packages (that can be found in
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;; installed manifest but not in a package directory), ‘id’ parameter is
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;; still "name-version" string.  So ‘id’ package parameter in the code
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;; below is either an object-address number or a full-name string.
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;; To speed-up the process of getting information, the following
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;; auxiliary variables are used:
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;;
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;; - `%packages' - VHash of "package address"/"package" pairs.
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;;
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;; - `%package-table' - Hash table of
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;;   "name+version key"/"list of packages" pairs.
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;;; Code:
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(use-modules
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 (ice-9 vlist)
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						||
 (ice-9 match)
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 (ice-9 popen)
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 (srfi srfi-1)
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						||
 (srfi srfi-2)
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						||
 (srfi srfi-11)
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						||
 (srfi srfi-19)
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						||
 (srfi srfi-26)
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						||
 (guix)
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 (guix git-download)
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 (guix packages)
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 (guix profiles)
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 (guix licenses)
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 (guix utils)
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 (guix ui)
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 (guix scripts lint)
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 (guix scripts package)
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 (guix scripts pull)
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 (gnu packages)
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 (gnu system))
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(define-syntax-rule (first-or-false lst)
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  (and (not (null? lst))
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       (first lst)))
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(define (list-maybe obj)
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  (if (list? obj) obj (list obj)))
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						||
 | 
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(define (output+error thunk)
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  "Call THUNK and return 2 values: output and error output as strings."
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						||
  (let ((output-port (open-output-string))
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        (error-port  (open-output-string)))
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						||
    (with-output-to-port output-port
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      (lambda () (with-error-to-port error-port thunk)))
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						||
    (let ((strings (list (get-output-string output-port)
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						||
                         (get-output-string error-port))))
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      (close-output-port output-port)
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						||
      (close-output-port error-port)
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      (apply values strings))))
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 | 
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(define (full-name->name+version spec)
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  "Given package specification SPEC with or without output,
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return two values: name and version.  For example, for SPEC
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\"foo@0.9.1b:lib\", return \"foo\" and \"0.9.1b\"."
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  (let-values (((name version output)
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                (package-specification->name+version+output spec)))
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    (values name version)))
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(define (name+version->full-name name version)
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  (string-append name "@" version))
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(define* (make-package-specification name #:optional version output)
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  (let ((full-name (if version
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                       (name+version->full-name name version)
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                       name)))
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    (if output
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        (string-append full-name ":" output)
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        full-name)))
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(define name+version->key cons)
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(define key->name+version car+cdr)
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(define %packages
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  (fold-packages (lambda (pkg res)
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                   (vhash-consq (object-address pkg) pkg res))
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                 vlist-null))
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(define %package-table
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  (let ((table (make-hash-table (vlist-length %packages))))
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    (vlist-for-each
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     (lambda (elem)
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       (match elem
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         ((address . pkg)
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          (let* ((key (name+version->key (package-name pkg)
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                                         (package-version pkg)))
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                 (ref (hash-ref table key)))
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            (hash-set! table key
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                       (if ref (cons pkg ref) (list pkg)))))))
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     %packages)
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    table))
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(define (manifest-entry->name+version+output entry)
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  (values
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   (manifest-entry-name    entry)
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   (manifest-entry-version entry)
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   (manifest-entry-output  entry)))
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(define (manifest-entry->package-specification entry)
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  (call-with-values
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      (lambda () (manifest-entry->name+version+output entry))
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    make-package-specification))
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(define (manifest-entries->package-specifications entries)
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  (map manifest-entry->package-specification entries))
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(define (profile-package-specifications profile)
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  "Return a list of package specifications for PROFILE."
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  (let ((manifest (profile-manifest profile)))
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    (manifest-entries->package-specifications
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     (manifest-entries manifest))))
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(define (profile->specifications+paths profile)
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  "Return a list of package specifications and paths for PROFILE.
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Each element of the list is a list of the package specification and its path."
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  (let ((manifest (profile-manifest profile)))
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    (map (lambda (entry)
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           (list (manifest-entry->package-specification entry)
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                 (manifest-entry-item entry)))
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         (manifest-entries manifest))))
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(define (profile-difference profile1 profile2)
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  "Return a list of package specifications for outputs installed in PROFILE1
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and not installed in PROFILE2."
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  (let ((specs1 (profile-package-specifications profile1))
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        (specs2 (profile-package-specifications profile2)))
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    (lset-difference string=? specs1 specs2)))
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(define (manifest-entries->hash-table entries)
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  "Return a hash table of name keys and lists of matching manifest ENTRIES."
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  (let ((table (make-hash-table (length entries))))
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    (for-each (lambda (entry)
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                (let* ((key (manifest-entry-name entry))
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                       (ref (hash-ref table key)))
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                  (hash-set! table key
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                             (if ref (cons entry ref) (list entry)))))
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              entries)
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    table))
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(define (manifest=? m1 m2)
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  (or (eq? m1 m2)
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      (equal? m1 m2)))
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(define manifest->hash-table
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  (let ((current-manifest #f)
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        (current-table #f))
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    (lambda (manifest)
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      "Return a hash table of name keys and matching MANIFEST entries."
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      (unless (manifest=? manifest current-manifest)
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        (set! current-manifest manifest)
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        (set! current-table (manifest-entries->hash-table
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                             (manifest-entries manifest))))
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      current-table)))
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(define* (manifest-entries-by-name manifest name #:optional version output)
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  "Return a list of MANIFEST entries matching NAME, VERSION and OUTPUT."
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  (let ((entries (or (hash-ref (manifest->hash-table manifest) name)
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                     '())))
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    (if (or version output)
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        (filter (lambda (entry)
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                  (and (or (not version)
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                           (equal? version (manifest-entry-version entry)))
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                       (or (not output)
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                           (equal? output  (manifest-entry-output entry)))))
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                entries)
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        entries)))
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(define (manifest-entry-by-output entries output)
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  "Return a manifest entry from ENTRIES matching OUTPUT."
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  (find (lambda (entry)
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          (string= output (manifest-entry-output entry)))
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        entries))
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(define (fold-manifest-by-name manifest proc init)
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  "Fold over MANIFEST entries.
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Call (PROC NAME VERSION ENTRIES RESULT), using INIT as the initial value
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of RESULT.  ENTRIES is a list of manifest entries with NAME/VERSION."
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  (hash-fold (lambda (name entries res)
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               (proc name (manifest-entry-version (car entries))
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                     entries res))
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             init
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             (manifest->hash-table manifest)))
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(define* (object-transformer param-alist #:optional (params '()))
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  "Return procedure transforming objects into alist of parameter/value pairs.
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						||
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						||
PARAM-ALIST is alist of available parameters (symbols) and procedures
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returning values of these parameters.  Each procedure is applied to
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objects.
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PARAMS is list of parameters from PARAM-ALIST that should be returned by
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a resulting procedure.  If PARAMS is not specified or is an empty list,
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use all available parameters.
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						||
Example:
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						||
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  (let* ((alist `((plus1 . ,1+) (minus1 . ,1-) (mul2 . ,(cut * 2 <>))))
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         (number->alist (object-transformer alist '(plus1 mul2))))
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    (number->alist 8))
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  =>
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  ((plus1 . 9) (mul2 . 16))
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"
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  (let* ((use-all-params (null? params))
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         (alist (filter-map (match-lambda
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                             ((param . proc)
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                              (and (or use-all-params
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                                       (memq param params))
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                                   (cons param proc)))
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                             (_ #f))
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                            param-alist)))
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    (lambda objects
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      (map (match-lambda
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            ((param . proc)
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             (cons param (apply proc objects))))
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           alist))))
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(define %manifest-entry-param-alist
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  `((output       . ,manifest-entry-output)
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    (path         . ,manifest-entry-item)
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    (dependencies . ,manifest-entry-dependencies)))
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(define manifest-entry->sexp
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  (object-transformer %manifest-entry-param-alist))
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(define (manifest-entries->sexps entries)
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  (map manifest-entry->sexp entries))
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(define (package-inputs-names inputs)
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  "Return a list of full names of the packages from package INPUTS."
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  (filter-map (match-lambda
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               ((_ (? package? package))
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                (make-package-specification (package-name package)
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                                            (package-version package)))
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               ((_ (? package? package) output)
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						||
                (make-package-specification (package-name package)
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						||
                                            (package-version package)
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                                            output))
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               (_ #f))
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              inputs))
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(define (package-license-names package)
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  "Return a list of license names of the PACKAGE."
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						||
  (filter-map (lambda (license)
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                (and (license? license)
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						||
                     (license-name license)))
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						||
              (list-maybe (package-license package))))
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						||
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						||
(define (package-source-names package)
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  "Return a list of source names (URLs) of the PACKAGE."
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  (let ((source (package-source package)))
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    (and (origin? source)
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         (filter-map (lambda (uri)
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						||
                       (cond ((string? uri)
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                              uri)
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						||
                             ((git-reference? uri)
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						||
                              (git-reference-url uri))
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						||
                             (else "Unknown source type")))
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                     (list-maybe (origin-uri source))))))
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(define (package-unique? package)
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  "Return #t if PACKAGE is a single package with such name/version."
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  (null? (cdr (packages-by-name (package-name package)
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                                (package-version package)))))
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						||
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(define %package-param-alist
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  `((id                . ,object-address)
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    (package-id        . ,object-address)
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    (name              . ,package-name)
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    (version           . ,package-version)
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						||
    (license           . ,package-license-names)
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    (source            . ,package-source-names)
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						||
    (synopsis          . ,package-synopsis)
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						||
    (description       . ,package-description-string)
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						||
    (home-url          . ,package-home-page)
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    (outputs           . ,package-outputs)
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    (systems           . ,package-supported-systems)
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    (non-unique        . ,(negate package-unique?))
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    (inputs            . ,(lambda (pkg)
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                            (package-inputs-names
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                             (package-inputs pkg))))
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    (native-inputs     . ,(lambda (pkg)
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                            (package-inputs-names
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                             (package-native-inputs pkg))))
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    (propagated-inputs . ,(lambda (pkg)
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                            (package-inputs-names
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                             (package-propagated-inputs pkg))))
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    (location          . ,(lambda (pkg)
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                            (location->string (package-location pkg))))))
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(define (package-param package param)
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  "Return a value of a PACKAGE PARAM."
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  (and=> (assq-ref %package-param-alist param)
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         (cut <> package)))
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						||
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;;; Finding packages.
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						||
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(define (package-by-address address)
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  (and=> (vhash-assq address %packages)
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         cdr))
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						||
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(define (packages-by-name+version name version)
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  (or (hash-ref %package-table
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                (name+version->key name version))
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      '()))
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						||
 | 
						||
(define (packages-by-full-name full-name)
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  (call-with-values
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      (lambda () (full-name->name+version full-name))
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						||
    packages-by-name+version))
 | 
						||
 | 
						||
(define (packages-by-id id)
 | 
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  (if (integer? id)
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						||
      (let ((pkg (package-by-address id)))
 | 
						||
        (if pkg (list pkg) '()))
 | 
						||
      (packages-by-full-name id)))
 | 
						||
 | 
						||
(define (id->name+version id)
 | 
						||
  (if (integer? id)
 | 
						||
      (and=> (package-by-address id)
 | 
						||
             (lambda (pkg)
 | 
						||
               (values (package-name pkg)
 | 
						||
                       (package-version pkg))))
 | 
						||
      (full-name->name+version id)))
 | 
						||
 | 
						||
(define (package-by-id id)
 | 
						||
  (first-or-false (packages-by-id id)))
 | 
						||
 | 
						||
(define (newest-package-by-id id)
 | 
						||
  (and=> (id->name+version id)
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						||
         (lambda (name)
 | 
						||
           (first-or-false (find-best-packages-by-name name #f)))))
 | 
						||
 | 
						||
(define (matching-packages predicate)
 | 
						||
  (fold-packages (lambda (pkg res)
 | 
						||
                   (if (predicate pkg)
 | 
						||
                       (cons pkg res)
 | 
						||
                       res))
 | 
						||
                 '()))
 | 
						||
 | 
						||
(define (filter-packages-by-output packages output)
 | 
						||
  (filter (lambda (package)
 | 
						||
            (member output (package-outputs package)))
 | 
						||
          packages))
 | 
						||
 | 
						||
(define* (packages-by-name name #:optional version output)
 | 
						||
  "Return a list of packages matching NAME, VERSION and OUTPUT."
 | 
						||
  (let ((packages (if version
 | 
						||
                      (packages-by-name+version name version)
 | 
						||
                      (matching-packages
 | 
						||
                       (lambda (pkg) (string=? name (package-name pkg)))))))
 | 
						||
    (if output
 | 
						||
        (filter-packages-by-output packages output)
 | 
						||
        packages)))
 | 
						||
 | 
						||
(define (manifest-entry->packages entry)
 | 
						||
  (call-with-values
 | 
						||
      (lambda () (manifest-entry->name+version+output entry))
 | 
						||
    packages-by-name))
 | 
						||
 | 
						||
(define (packages-by-regexp regexp match-params)
 | 
						||
  "Return a list of packages matching REGEXP string.
 | 
						||
MATCH-PARAMS is a list of parameters that REGEXP can match."
 | 
						||
  (define (package-match? package regexp)
 | 
						||
    (any (lambda (param)
 | 
						||
           (let ((val (package-param package param)))
 | 
						||
             (and (string? val) (regexp-exec regexp val))))
 | 
						||
         match-params))
 | 
						||
 | 
						||
  (let ((re (make-regexp regexp regexp/icase)))
 | 
						||
    (matching-packages (cut package-match? <> re))))
 | 
						||
 | 
						||
(define (packages-by-license license)
 | 
						||
  "Return a list of packages with LICENSE."
 | 
						||
  (matching-packages
 | 
						||
   (lambda (package)
 | 
						||
     (memq license (list-maybe (package-license package))))))
 | 
						||
 | 
						||
(define (all-available-packages)
 | 
						||
  "Return a list of all available packages."
 | 
						||
  (matching-packages (const #t)))
 | 
						||
 | 
						||
(define (newest-available-packages)
 | 
						||
  "Return a list of the newest available packages."
 | 
						||
  (vhash-fold (lambda (name elem res)
 | 
						||
                (match elem
 | 
						||
                  ((_ newest pkgs ...)
 | 
						||
                   (cons newest res))))
 | 
						||
              '()
 | 
						||
              (find-newest-available-packages)))
 | 
						||
 | 
						||
 | 
						||
;;; Making package/output patterns.
 | 
						||
 | 
						||
(define (specification->package-pattern specification)
 | 
						||
  (call-with-values
 | 
						||
      (lambda ()
 | 
						||
        (full-name->name+version specification))
 | 
						||
    list))
 | 
						||
 | 
						||
(define (specification->output-pattern specification)
 | 
						||
  (call-with-values
 | 
						||
      (lambda ()
 | 
						||
        (package-specification->name+version+output specification #f))
 | 
						||
    list))
 | 
						||
 | 
						||
(define (id->package-pattern id)
 | 
						||
  (if (integer? id)
 | 
						||
      (package-by-address id)
 | 
						||
      (specification->package-pattern id)))
 | 
						||
 | 
						||
(define (id->output-pattern id)
 | 
						||
  "Return an output pattern by output ID.
 | 
						||
ID should be '<package-address>:<output>' or '<name>-<version>:<output>'."
 | 
						||
  (let-values (((name version output)
 | 
						||
                (package-specification->name+version+output id)))
 | 
						||
    (if version
 | 
						||
        (list name version output)
 | 
						||
        (list (package-by-address (string->number name))
 | 
						||
              output))))
 | 
						||
 | 
						||
(define (specifications->package-patterns . specifications)
 | 
						||
  (map specification->package-pattern specifications))
 | 
						||
 | 
						||
(define (specifications->output-patterns . specifications)
 | 
						||
  (map specification->output-pattern specifications))
 | 
						||
 | 
						||
(define (ids->package-patterns . ids)
 | 
						||
  (map id->package-pattern ids))
 | 
						||
 | 
						||
(define (ids->output-patterns . ids)
 | 
						||
  (map id->output-pattern ids))
 | 
						||
 | 
						||
(define* (manifest-patterns-result packages res obsolete-pattern
 | 
						||
                                   #:optional installed-pattern)
 | 
						||
  "Auxiliary procedure for 'manifest-package-patterns' and
 | 
						||
'manifest-output-patterns'."
 | 
						||
  (if (null? packages)
 | 
						||
      (cons (obsolete-pattern) res)
 | 
						||
      (if installed-pattern
 | 
						||
          ;; We don't need duplicates for a list of installed packages,
 | 
						||
          ;; so just take any (car) package.
 | 
						||
          (cons (installed-pattern (car packages)) res)
 | 
						||
          res)))
 | 
						||
 | 
						||
(define* (manifest-package-patterns manifest #:optional obsolete-only?)
 | 
						||
  "Return a list of package patterns for MANIFEST entries.
 | 
						||
If OBSOLETE-ONLY? is #f, use all entries, otherwise make patterns only
 | 
						||
for obsolete packages."
 | 
						||
  (fold-manifest-by-name
 | 
						||
   manifest
 | 
						||
   (lambda (name version entries res)
 | 
						||
     (manifest-patterns-result (packages-by-name name version)
 | 
						||
                               res
 | 
						||
                               (lambda () (list name version entries))
 | 
						||
                               (and (not obsolete-only?)
 | 
						||
                                    (cut list <> entries))))
 | 
						||
   '()))
 | 
						||
 | 
						||
(define* (manifest-output-patterns manifest #:optional obsolete-only?)
 | 
						||
  "Return a list of output patterns for MANIFEST entries.
 | 
						||
If OBSOLETE-ONLY? is #f, use all entries, otherwise make patterns only
 | 
						||
for obsolete packages."
 | 
						||
  (fold (lambda (entry res)
 | 
						||
          (manifest-patterns-result (manifest-entry->packages entry)
 | 
						||
                                    res
 | 
						||
                                    (lambda () entry)
 | 
						||
                                    (and (not obsolete-only?)
 | 
						||
                                         (cut list <> entry))))
 | 
						||
        '()
 | 
						||
        (manifest-entries manifest)))
 | 
						||
 | 
						||
(define (obsolete-package-patterns manifest)
 | 
						||
  (manifest-package-patterns manifest #t))
 | 
						||
 | 
						||
(define (obsolete-output-patterns manifest)
 | 
						||
  (manifest-output-patterns manifest #t))
 | 
						||
 | 
						||
 | 
						||
;;; Transforming package/output patterns into alists.
 | 
						||
 | 
						||
(define (obsolete-package-sexp name version entries)
 | 
						||
  "Return an alist with information about obsolete package.
 | 
						||
ENTRIES is a list of installed manifest entries."
 | 
						||
  `((id        . ,(name+version->full-name name version))
 | 
						||
    (name      . ,name)
 | 
						||
    (version   . ,version)
 | 
						||
    (outputs   . ,(map manifest-entry-output entries))
 | 
						||
    (obsolete  . #t)
 | 
						||
    (installed . ,(manifest-entries->sexps entries))))
 | 
						||
 | 
						||
(define (package-pattern-transformer manifest params)
 | 
						||
  "Return 'package-pattern->package-sexps' procedure."
 | 
						||
  (define package->sexp
 | 
						||
    (object-transformer %package-param-alist params))
 | 
						||
 | 
						||
  (define* (sexp-by-package package #:optional
 | 
						||
                            (entries (manifest-entries-by-name
 | 
						||
                                      manifest
 | 
						||
                                      (package-name package)
 | 
						||
                                      (package-version package))))
 | 
						||
    (cons (cons 'installed (manifest-entries->sexps entries))
 | 
						||
          (package->sexp package)))
 | 
						||
 | 
						||
  (define (->sexps pattern)
 | 
						||
    (match pattern
 | 
						||
      ((? package? package)
 | 
						||
       (list (sexp-by-package package)))
 | 
						||
      (((? package? package) entries)
 | 
						||
       (list (sexp-by-package package entries)))
 | 
						||
      ((name version entries)
 | 
						||
       (list (obsolete-package-sexp
 | 
						||
              name version entries)))
 | 
						||
      ((name version)
 | 
						||
       (let ((packages (packages-by-name name version)))
 | 
						||
         (if (null? packages)
 | 
						||
             (let ((entries (manifest-entries-by-name
 | 
						||
                             manifest name version)))
 | 
						||
               (if (null? entries)
 | 
						||
                   '()
 | 
						||
                   (list (obsolete-package-sexp
 | 
						||
                          name version entries))))
 | 
						||
             (map sexp-by-package packages))))
 | 
						||
      (_ '())))
 | 
						||
 | 
						||
  ->sexps)
 | 
						||
 | 
						||
(define (output-pattern-transformer manifest params)
 | 
						||
  "Return 'output-pattern->output-sexps' procedure."
 | 
						||
  (define package->sexp
 | 
						||
    (object-transformer (alist-delete 'id %package-param-alist)
 | 
						||
                        params))
 | 
						||
 | 
						||
  (define manifest-entry->sexp
 | 
						||
    (object-transformer (alist-delete 'output %manifest-entry-param-alist)
 | 
						||
                        params))
 | 
						||
 | 
						||
  (define* (output-sexp pkg-alist pkg-address output
 | 
						||
                        #:optional entry)
 | 
						||
    (let ((entry-alist (if entry
 | 
						||
                           (manifest-entry->sexp entry)
 | 
						||
                           '()))
 | 
						||
          (base `((id        . ,(string-append
 | 
						||
                                 (number->string pkg-address)
 | 
						||
                                 ":" output))
 | 
						||
                  (output    . ,output)
 | 
						||
                  (installed . ,(->bool entry)))))
 | 
						||
      (append entry-alist base pkg-alist)))
 | 
						||
 | 
						||
  (define (obsolete-output-sexp entry)
 | 
						||
    (let-values (((name version output)
 | 
						||
                  (manifest-entry->name+version+output entry)))
 | 
						||
      (let ((base `((id         . ,(make-package-specification
 | 
						||
                                    name version output))
 | 
						||
                    (package-id . ,(name+version->full-name name version))
 | 
						||
                    (name       . ,name)
 | 
						||
                    (version    . ,version)
 | 
						||
                    (output     . ,output)
 | 
						||
                    (obsolete   . #t)
 | 
						||
                    (installed  . #t))))
 | 
						||
        (append (manifest-entry->sexp entry) base))))
 | 
						||
 | 
						||
  (define* (sexps-by-package package #:optional output
 | 
						||
                             (entries (manifest-entries-by-name
 | 
						||
                                       manifest
 | 
						||
                                       (package-name package)
 | 
						||
                                       (package-version package))))
 | 
						||
    ;; Assuming that PACKAGE has this OUTPUT.
 | 
						||
    (let ((pkg-alist (package->sexp package))
 | 
						||
          (address (object-address package))
 | 
						||
          (outputs (if output
 | 
						||
                       (list output)
 | 
						||
                       (package-outputs package))))
 | 
						||
      (map (lambda (output)
 | 
						||
             (output-sexp pkg-alist address output
 | 
						||
                          (manifest-entry-by-output entries output)))
 | 
						||
           outputs)))
 | 
						||
 | 
						||
  (define* (sexps-by-manifest-entry entry #:optional
 | 
						||
                                    (packages (manifest-entry->packages
 | 
						||
                                               entry)))
 | 
						||
    (if (null? packages)
 | 
						||
        (list (obsolete-output-sexp entry))
 | 
						||
        (map (lambda (package)
 | 
						||
               (output-sexp (package->sexp package)
 | 
						||
                            (object-address package)
 | 
						||
                            (manifest-entry-output entry)
 | 
						||
                            entry))
 | 
						||
             packages)))
 | 
						||
 | 
						||
  (define (->sexps pattern)
 | 
						||
    (match pattern
 | 
						||
      ((? package? package)
 | 
						||
       (sexps-by-package package))
 | 
						||
      ((package (? string? output))
 | 
						||
       (sexps-by-package package output))
 | 
						||
      ((? manifest-entry? entry)
 | 
						||
       (list (obsolete-output-sexp entry)))
 | 
						||
      ((package entry)
 | 
						||
       (sexps-by-manifest-entry entry (list package)))
 | 
						||
      ((name version output)
 | 
						||
       (let ((packages (packages-by-name name version output)))
 | 
						||
         (if (null? packages)
 | 
						||
             (let ((entries (manifest-entries-by-name
 | 
						||
                             manifest name version output)))
 | 
						||
               (append-map (cut sexps-by-manifest-entry <>)
 | 
						||
                           entries))
 | 
						||
             (append-map (cut sexps-by-package <> output)
 | 
						||
                         packages))))
 | 
						||
      (_ '())))
 | 
						||
 | 
						||
  ->sexps)
 | 
						||
 | 
						||
(define (entry-type-error entry-type)
 | 
						||
  (error (format #f "Wrong entry-type '~a'" entry-type)))
 | 
						||
 | 
						||
(define (search-type-error entry-type search-type)
 | 
						||
  (error (format #f "Wrong search type '~a' for entry-type '~a'"
 | 
						||
                 search-type entry-type)))
 | 
						||
 | 
						||
(define %pattern-transformers
 | 
						||
  `((package . ,package-pattern-transformer)
 | 
						||
    (output  . ,output-pattern-transformer)))
 | 
						||
 | 
						||
(define (pattern-transformer entry-type)
 | 
						||
  (assq-ref %pattern-transformers entry-type))
 | 
						||
 | 
						||
;; All procedures from inner alists are called with (MANIFEST . SEARCH-VALS)
 | 
						||
;; as arguments; see `package/output-sexps'.
 | 
						||
(define %patterns-makers
 | 
						||
  (let* ((apply-to-rest         (lambda (proc)
 | 
						||
                                  (lambda (_ . rest) (apply proc rest))))
 | 
						||
         (apply-to-first        (lambda (proc)
 | 
						||
                                  (lambda (first . _) (proc first))))
 | 
						||
         (manifest-package-proc (apply-to-first manifest-package-patterns))
 | 
						||
         (manifest-output-proc  (apply-to-first manifest-output-patterns))
 | 
						||
         (regexp-proc           (lambda (_ regexp params . __)
 | 
						||
                                  (packages-by-regexp regexp params)))
 | 
						||
         (license-proc          (lambda (_ license-name)
 | 
						||
                                  (packages-by-license
 | 
						||
                                   (lookup-license license-name))))
 | 
						||
         (all-proc              (lambda _ (all-available-packages)))
 | 
						||
         (newest-proc           (lambda _ (newest-available-packages))))
 | 
						||
    `((package
 | 
						||
       (id               . ,(apply-to-rest ids->package-patterns))
 | 
						||
       (name             . ,(apply-to-rest specifications->package-patterns))
 | 
						||
       (installed        . ,manifest-package-proc)
 | 
						||
       (obsolete         . ,(apply-to-first obsolete-package-patterns))
 | 
						||
       (regexp           . ,regexp-proc)
 | 
						||
       (license          . ,license-proc)
 | 
						||
       (all-available    . ,all-proc)
 | 
						||
       (newest-available . ,newest-proc))
 | 
						||
      (output
 | 
						||
       (id               . ,(apply-to-rest ids->output-patterns))
 | 
						||
       (name             . ,(apply-to-rest specifications->output-patterns))
 | 
						||
       (installed        . ,manifest-output-proc)
 | 
						||
       (obsolete         . ,(apply-to-first obsolete-output-patterns))
 | 
						||
       (regexp           . ,regexp-proc)
 | 
						||
       (license          . ,license-proc)
 | 
						||
       (all-available    . ,all-proc)
 | 
						||
       (newest-available . ,newest-proc)))))
 | 
						||
 | 
						||
(define (patterns-maker entry-type search-type)
 | 
						||
  (or (and=> (assq-ref %patterns-makers entry-type)
 | 
						||
             (cut assq-ref <> search-type))
 | 
						||
      (search-type-error entry-type search-type)))
 | 
						||
 | 
						||
(define (package/output-sexps profile params entry-type
 | 
						||
                              search-type search-vals)
 | 
						||
  "Return information about packages or package outputs.
 | 
						||
See 'entry-sexps' for details."
 | 
						||
  (let* ((manifest (profile-manifest profile))
 | 
						||
         (patterns (if (and (eq? entry-type 'output)
 | 
						||
                            (eq? search-type 'profile-diff))
 | 
						||
                       (match search-vals
 | 
						||
                         ((p1 p2)
 | 
						||
                          (map specification->output-pattern
 | 
						||
                               (profile-difference p1 p2)))
 | 
						||
                         (_ '()))
 | 
						||
                       (apply (patterns-maker entry-type search-type)
 | 
						||
                              manifest search-vals)))
 | 
						||
         (->sexps ((pattern-transformer entry-type) manifest params)))
 | 
						||
    (append-map ->sexps patterns)))
 | 
						||
 | 
						||
 | 
						||
;;; Getting information about generations.
 | 
						||
 | 
						||
(define (generation-param-alist profile)
 | 
						||
  "Return an alist of generation parameters and procedures for PROFILE."
 | 
						||
  (let ((current (generation-number profile)))
 | 
						||
    `((id          . ,identity)
 | 
						||
      (number      . ,identity)
 | 
						||
      (prev-number . ,(cut previous-generation-number profile <>))
 | 
						||
      (current     . ,(cut = current <>))
 | 
						||
      (path        . ,(cut generation-file-name profile <>))
 | 
						||
      (time        . ,(lambda (gen)
 | 
						||
                        (time-second (generation-time profile gen)))))))
 | 
						||
 | 
						||
(define (matching-generations profile predicate)
 | 
						||
  "Return a list of PROFILE generations matching PREDICATE."
 | 
						||
  (filter predicate (profile-generations profile)))
 | 
						||
 | 
						||
(define (last-generations profile number)
 | 
						||
  "Return a list of last NUMBER generations.
 | 
						||
If NUMBER is 0 or less, return all generations."
 | 
						||
  (let ((generations (profile-generations profile))
 | 
						||
        (number (if (<= number 0) +inf.0 number)))
 | 
						||
    (if (> (length generations) number)
 | 
						||
        (list-head  (reverse generations) number)
 | 
						||
        generations)))
 | 
						||
 | 
						||
(define (find-generations profile search-type search-vals)
 | 
						||
  "Find PROFILE's generations matching SEARCH-TYPE and SEARCH-VALS."
 | 
						||
  (case search-type
 | 
						||
    ((id)
 | 
						||
     (matching-generations profile (cut memq <> search-vals)))
 | 
						||
    ((last)
 | 
						||
     (last-generations profile (car search-vals)))
 | 
						||
    ((all)
 | 
						||
     (last-generations profile +inf.0))
 | 
						||
    ((time)
 | 
						||
     (match search-vals
 | 
						||
       ((from to)
 | 
						||
        (matching-generations
 | 
						||
         profile
 | 
						||
         (lambda (gen)
 | 
						||
           (let ((time (time-second (generation-time profile gen))))
 | 
						||
             (< from time to)))))
 | 
						||
       (_ '())))
 | 
						||
    (else (search-type-error "generation" search-type))))
 | 
						||
 | 
						||
(define (generation-sexps profile params search-type search-vals)
 | 
						||
  "Return information about generations.
 | 
						||
See 'entry-sexps' for details."
 | 
						||
  (let ((generations (find-generations profile search-type search-vals))
 | 
						||
        (->sexp (object-transformer (generation-param-alist profile)
 | 
						||
                                    params)))
 | 
						||
    (map ->sexp generations)))
 | 
						||
 | 
						||
(define system-generation-boot-parameters
 | 
						||
  (memoize
 | 
						||
   (lambda (profile generation)
 | 
						||
     "Return boot parameters for PROFILE's system GENERATION."
 | 
						||
     (let* ((gen-file   (generation-file-name profile generation))
 | 
						||
            (param-file (string-append gen-file "/parameters")))
 | 
						||
       (call-with-input-file param-file read-boot-parameters)))))
 | 
						||
 | 
						||
(define (system-generation-param-alist profile)
 | 
						||
  "Return an alist of system generation parameters and procedures for
 | 
						||
PROFILE."
 | 
						||
  (append (generation-param-alist profile)
 | 
						||
          `((label       . ,(lambda (gen)
 | 
						||
                              (boot-parameters-label
 | 
						||
                               (system-generation-boot-parameters
 | 
						||
                                profile gen))))
 | 
						||
            (root-device . ,(lambda (gen)
 | 
						||
                              (boot-parameters-root-device
 | 
						||
                               (system-generation-boot-parameters
 | 
						||
                                profile gen))))
 | 
						||
            (kernel      . ,(lambda (gen)
 | 
						||
                              (boot-parameters-kernel
 | 
						||
                               (system-generation-boot-parameters
 | 
						||
                                profile gen)))))))
 | 
						||
 | 
						||
(define (system-generation-sexps profile params search-type search-vals)
 | 
						||
  "Return an alist with information about system generations."
 | 
						||
  (let ((generations (find-generations profile search-type search-vals))
 | 
						||
        (->sexp (object-transformer (system-generation-param-alist profile)
 | 
						||
                                    params)))
 | 
						||
    (map ->sexp generations)))
 | 
						||
 | 
						||
 | 
						||
;;; Getting package/output/generation entries (alists).
 | 
						||
 | 
						||
(define (entries profile params entry-type search-type search-vals)
 | 
						||
  "Return information about entries.
 | 
						||
 | 
						||
ENTRY-TYPE is a symbol defining a type of returning information.  Should
 | 
						||
be: 'package', 'output' or 'generation'.
 | 
						||
 | 
						||
SEARCH-TYPE and SEARCH-VALS define how to get the information.
 | 
						||
SEARCH-TYPE should be one of the following symbols:
 | 
						||
 | 
						||
- If ENTRY-TYPE is 'package' or 'output':
 | 
						||
  'id', 'name', 'regexp', 'all-available', 'newest-available',
 | 
						||
  'installed', 'obsolete', 'generation'.
 | 
						||
 | 
						||
- If ENTRY-TYPE is 'generation':
 | 
						||
  'id', 'last', 'all', 'time'.
 | 
						||
 | 
						||
PARAMS is a list of parameters for receiving.  If it is an empty list,
 | 
						||
get information with all available parameters, which are:
 | 
						||
 | 
						||
- If ENTRY-TYPE is 'package':
 | 
						||
  'id', 'name', 'version', 'outputs', 'license', 'synopsis',
 | 
						||
  'description', 'home-url', 'inputs', 'native-inputs',
 | 
						||
  'propagated-inputs', 'location', 'installed'.
 | 
						||
 | 
						||
- If ENTRY-TYPE is 'output':
 | 
						||
  'id', 'package-id', 'name', 'version', 'output', 'license',
 | 
						||
  'synopsis', 'description', 'home-url', 'inputs', 'native-inputs',
 | 
						||
  'propagated-inputs', 'location', 'installed', 'path', 'dependencies'.
 | 
						||
 | 
						||
- If ENTRY-TYPE is 'generation':
 | 
						||
  'id', 'number', 'prev-number', 'path', 'time'.
 | 
						||
 | 
						||
Returning value is a list of alists.  Each alist consists of
 | 
						||
parameter/value pairs."
 | 
						||
  (case entry-type
 | 
						||
    ((package output)
 | 
						||
     (package/output-sexps profile params entry-type
 | 
						||
                           search-type search-vals))
 | 
						||
    ((generation)
 | 
						||
     (generation-sexps profile params
 | 
						||
                       search-type search-vals))
 | 
						||
    ((system-generation)
 | 
						||
     (system-generation-sexps profile params
 | 
						||
                              search-type search-vals))
 | 
						||
    (else (entry-type-error entry-type))))
 | 
						||
 | 
						||
 | 
						||
;;; Package actions.
 | 
						||
 | 
						||
(define* (package->manifest-entry* package #:optional output)
 | 
						||
  (and package
 | 
						||
       (package->manifest-entry package output)))
 | 
						||
 | 
						||
(define* (make-install-manifest-entries id #:optional output)
 | 
						||
  (package->manifest-entry* (package-by-id id) output))
 | 
						||
 | 
						||
(define* (make-upgrade-manifest-entries id #:optional output)
 | 
						||
  (package->manifest-entry* (newest-package-by-id id) output))
 | 
						||
 | 
						||
(define* (make-manifest-pattern id #:optional output)
 | 
						||
  "Make manifest pattern from a package ID and OUTPUT."
 | 
						||
  (let-values (((name version)
 | 
						||
                (id->name+version id)))
 | 
						||
    (and name version
 | 
						||
         (manifest-pattern
 | 
						||
          (name name)
 | 
						||
          (version version)
 | 
						||
          (output output)))))
 | 
						||
 | 
						||
(define (convert-action-pattern pattern proc)
 | 
						||
  "Convert action PATTERN into a list of objects returned by PROC.
 | 
						||
PROC is called: (PROC ID) or (PROC ID OUTPUT)."
 | 
						||
  (match pattern
 | 
						||
    ((id . outputs)
 | 
						||
     (if (null? outputs)
 | 
						||
         (let ((obj (proc id)))
 | 
						||
           (if obj (list obj) '()))
 | 
						||
         (filter-map (cut proc id <>)
 | 
						||
                     outputs)))
 | 
						||
    (_ '())))
 | 
						||
 | 
						||
(define (convert-action-patterns patterns proc)
 | 
						||
  (append-map (cut convert-action-pattern <> proc)
 | 
						||
              patterns))
 | 
						||
 | 
						||
(define* (process-package-actions
 | 
						||
          profile #:key (install '()) (upgrade '()) (remove '())
 | 
						||
          (use-substitutes? #t) dry-run?)
 | 
						||
  "Perform package actions.
 | 
						||
 | 
						||
INSTALL, UPGRADE, REMOVE are lists of 'package action patterns'.
 | 
						||
Each pattern should have the following form:
 | 
						||
 | 
						||
  (ID . OUTPUTS)
 | 
						||
 | 
						||
ID is an object address or a full-name of a package.
 | 
						||
OUTPUTS is a list of package outputs (may be an empty list)."
 | 
						||
  (format #t "The process begins ...~%")
 | 
						||
  (let* ((install (append
 | 
						||
                   (convert-action-patterns
 | 
						||
                    install make-install-manifest-entries)
 | 
						||
                   (convert-action-patterns
 | 
						||
                    upgrade make-upgrade-manifest-entries)))
 | 
						||
         (remove (convert-action-patterns remove make-manifest-pattern))
 | 
						||
         (transaction (manifest-transaction (install install)
 | 
						||
                                            (remove remove)))
 | 
						||
         (manifest (profile-manifest profile))
 | 
						||
         (new-manifest (manifest-perform-transaction
 | 
						||
                        manifest transaction)))
 | 
						||
    (unless (and (null? install) (null? remove))
 | 
						||
      (with-store store
 | 
						||
        (let* ((derivation (run-with-store store
 | 
						||
                             (mbegin %store-monad
 | 
						||
                               (set-guile-for-build (default-guile))
 | 
						||
                               (profile-derivation new-manifest))))
 | 
						||
               (derivations (list derivation))
 | 
						||
               (new-profile (derivation->output-path derivation)))
 | 
						||
          (set-build-options store
 | 
						||
                             #:print-build-trace #f
 | 
						||
                             #:use-substitutes? use-substitutes?)
 | 
						||
          (show-manifest-transaction store manifest transaction
 | 
						||
                                     #:dry-run? dry-run?)
 | 
						||
          (show-what-to-build store derivations
 | 
						||
                              #:use-substitutes? use-substitutes?
 | 
						||
                              #:dry-run? dry-run?)
 | 
						||
          (unless dry-run?
 | 
						||
            (let ((name (generation-file-name
 | 
						||
                         profile
 | 
						||
                         (+ 1 (generation-number profile)))))
 | 
						||
              (and (build-derivations store derivations)
 | 
						||
                   (let* ((entries (manifest-entries new-manifest))
 | 
						||
                          (count   (length entries)))
 | 
						||
                     (switch-symlinks name new-profile)
 | 
						||
                     (switch-symlinks profile name)
 | 
						||
                     (format #t (N_ "~a package in profile~%"
 | 
						||
                                    "~a packages in profile~%"
 | 
						||
                                    count)
 | 
						||
                             count)
 | 
						||
                     (display-search-paths entries (list profile)))))))))))
 | 
						||
 | 
						||
(define (delete-generations* profile generations)
 | 
						||
  "Delete GENERATIONS from PROFILE.
 | 
						||
GENERATIONS is a list of generation numbers."
 | 
						||
  (with-store store
 | 
						||
    (delete-generations store profile generations)))
 | 
						||
 | 
						||
(define (package-location-string id-or-name)
 | 
						||
  "Return a location string of a package with ID-OR-NAME."
 | 
						||
  (and=> (or (package-by-id id-or-name)
 | 
						||
             (match (packages-by-name id-or-name)
 | 
						||
               (()              #f)
 | 
						||
               ((package _ ...) package)))
 | 
						||
         (compose location->string package-location)))
 | 
						||
 | 
						||
(define (package-source-derivation->store-path derivation)
 | 
						||
  "Return a store path of the package source DERIVATION."
 | 
						||
  (match (derivation-outputs derivation)
 | 
						||
    ;; Source derivation is always (("out" . derivation)).
 | 
						||
    (((_ . output-drv))
 | 
						||
     (derivation-output-path output-drv))
 | 
						||
    (_ #f)))
 | 
						||
 | 
						||
(define (package-source-path package-id)
 | 
						||
  "Return a store file path to a source of a package PACKAGE-ID."
 | 
						||
  (and-let* ((package (package-by-id package-id))
 | 
						||
             (source  (package-source package)))
 | 
						||
    (with-store store
 | 
						||
      (package-source-derivation->store-path
 | 
						||
       (package-source-derivation store source)))))
 | 
						||
 | 
						||
(define* (package-source-build-derivation package-id #:key dry-run?
 | 
						||
                                          (use-substitutes? #t))
 | 
						||
  "Build source derivation of a package PACKAGE-ID."
 | 
						||
  (and-let* ((package (package-by-id package-id))
 | 
						||
             (source  (package-source package)))
 | 
						||
    (with-store store
 | 
						||
      (let* ((derivation  (package-source-derivation store source))
 | 
						||
             (derivations (list derivation)))
 | 
						||
        (set-build-options store
 | 
						||
                           #:print-build-trace #f
 | 
						||
                           #:use-substitutes? use-substitutes?)
 | 
						||
        (show-what-to-build store derivations
 | 
						||
                            #:use-substitutes? use-substitutes?
 | 
						||
                            #:dry-run? dry-run?)
 | 
						||
        (unless dry-run?
 | 
						||
          (build-derivations store derivations))
 | 
						||
        (format #t "The source store path: ~a~%"
 | 
						||
                (package-source-derivation->store-path derivation))))))
 | 
						||
 | 
						||
 | 
						||
;;; Executing guix commands
 | 
						||
 | 
						||
(define (guix-command . args)
 | 
						||
  "Run 'guix ARGS ...' command."
 | 
						||
  (catch 'quit
 | 
						||
    (lambda () (apply run-guix args))
 | 
						||
    (const #t)))
 | 
						||
 | 
						||
(define (guix-command-output . args)
 | 
						||
  "Return 2 strings with 'guix ARGS ...' output and error output."
 | 
						||
  (output+error
 | 
						||
   (lambda ()
 | 
						||
     (parameterize ((guix-warning-port (current-error-port)))
 | 
						||
       (apply guix-command args)))))
 | 
						||
 | 
						||
(define (help-string . commands)
 | 
						||
  "Return string with 'guix COMMANDS ... --help' output."
 | 
						||
  (apply guix-command-output `(,@commands "--help")))
 | 
						||
 | 
						||
(define (pipe-guix-output guix-args command-args)
 | 
						||
  "Run 'guix GUIX-ARGS ...' command and pipe its output to a shell command
 | 
						||
defined by COMMAND-ARGS.
 | 
						||
Return #t if the shell command was executed successfully."
 | 
						||
  (let ((pipe (apply open-pipe* OPEN_WRITE command-args)))
 | 
						||
    (with-output-to-port pipe
 | 
						||
      (lambda () (apply guix-command guix-args)))
 | 
						||
    (zero? (status:exit-val (close-pipe pipe)))))
 | 
						||
 | 
						||
 | 
						||
;;; Lists of packages, lint checkers, etc.
 | 
						||
 | 
						||
(define (graph-type-names)
 | 
						||
  "Return a list of names of available graph node types."
 | 
						||
  (map (@ (guix graph) node-type-name)
 | 
						||
       (@ (guix scripts graph) %node-types)))
 | 
						||
 | 
						||
(define (refresh-updater-names)
 | 
						||
  "Return a list of names of available refresh updater types."
 | 
						||
  (map (@ (guix upstream) upstream-updater-name)
 | 
						||
       (@ (guix scripts refresh) %updaters)))
 | 
						||
 | 
						||
(define (lint-checker-names)
 | 
						||
  "Return a list of names of available lint checkers."
 | 
						||
  (map (lambda (checker)
 | 
						||
         (symbol->string (lint-checker-name checker)))
 | 
						||
       %checkers))
 | 
						||
 | 
						||
(define (package-names)
 | 
						||
  "Return a list of names of available packages."
 | 
						||
  (delete-duplicates
 | 
						||
   (fold-packages (lambda (pkg res)
 | 
						||
                    (cons (package-name pkg) res))
 | 
						||
                  '())))
 | 
						||
 | 
						||
;; See the comment to 'guix-package-names' function in "guix-popup.el".
 | 
						||
(define (package-names-lists)
 | 
						||
  (map list (package-names)))
 | 
						||
 | 
						||
 | 
						||
;;; Licenses
 | 
						||
 | 
						||
(define %licenses
 | 
						||
  (delay
 | 
						||
    (filter license?
 | 
						||
            (module-map (lambda (_ var)
 | 
						||
                          (variable-ref var))
 | 
						||
                        (resolve-interface '(guix licenses))))))
 | 
						||
 | 
						||
(define (licenses)
 | 
						||
  (force %licenses))
 | 
						||
 | 
						||
(define (license-names)
 | 
						||
  "Return a list of names of available licenses."
 | 
						||
  (map license-name (licenses)))
 | 
						||
 | 
						||
(define lookup-license
 | 
						||
  (memoize
 | 
						||
   (lambda (name)
 | 
						||
     "Return a license by its name."
 | 
						||
     (find (lambda (l)
 | 
						||
             (string=? name (license-name l)))
 | 
						||
           (licenses)))))
 | 
						||
 | 
						||
(define (lookup-license-uri name)
 | 
						||
  "Return a license URI by its name."
 | 
						||
  (and=> (lookup-license name)
 | 
						||
         license-uri))
 | 
						||
 | 
						||
(define %license-param-alist
 | 
						||
  `((id      . ,license-name)
 | 
						||
    (name    . ,license-name)
 | 
						||
    (url     . ,license-uri)
 | 
						||
    (comment . ,license-comment)))
 | 
						||
 | 
						||
(define license->sexp
 | 
						||
  (object-transformer %license-param-alist))
 | 
						||
 | 
						||
(define (find-licenses search-type . search-values)
 | 
						||
  "Return a list of licenses depending on SEARCH-TYPE and SEARCH-VALUES."
 | 
						||
  (case search-type
 | 
						||
    ((id name)
 | 
						||
     (let ((names search-values))
 | 
						||
       (filter-map lookup-license names)))
 | 
						||
    ((all)
 | 
						||
     (licenses))))
 | 
						||
 | 
						||
(define (license-entries search-type . search-values)
 | 
						||
  (map license->sexp
 | 
						||
       (apply find-licenses search-type search-values)))
 |