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guix package: Allow removal of a specific package output.

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Fixes <http://bugs.gnu.org/15756>.

* guix/profiles.scm (<manifest-pattern>): New record type.
  (remove-manifest-entry): Remove.
  (entry-predicate, manifest-matching-entries): New procedures.
  (manifest-remove): Accept a list of <manifest-pattern>.
  (manifest-installed?): Replace 'name' parameter by 'pattern', a
  <manifest-pattern>.
* guix/scripts/package.scm (options->removable): Return a list of
  <manifest-pattern>.
  (guix-package)[process-action]: Use 'manifest-matching-entries' to
  compute the list of packages to remove.
* tests/profiles.scm: New file.
* Makefile.am (SCM_TESTS): Add it.
This commit is contained in:
Ludovic Courtès 2013-11-01 23:11:17 +01:00
parent 537630c5a7
commit a20787706c
5 changed files with 167 additions and 29 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
.dir-locals.el
View file

@ -14,6 +14,8 @@
(eval . (put 'substitute* 'scheme-indent-function 1))
(eval . (put 'with-directory-excursion 'scheme-indent-function 1))
(eval . (put 'package 'scheme-indent-function 0))
(eval . (put 'manifest-entry 'scheme-indent-function 0))
(eval . (put 'manifest-pattern 'scheme-indent-function 0))
(eval . (put 'substitute-keyword-arguments 'scheme-indent-function 1))
(eval . (put 'with-error-handling 'scheme-indent-function 0))
(eval . (put 'with-mutex 'scheme-indent-function 1))

3
Makefile.am
View file

@ -115,7 +115,8 @@ SCM_TESTS = \
tests/store.scm \
tests/monads.scm \
tests/nar.scm \
tests/union.scm
tests/union.scm \
tests/profiles.scm
SH_TESTS = \
tests/guix-build.sh \

68
guix/profiles.scm
View file

@ -42,11 +42,15 @@ (define-module (guix profiles)
manifest-entry-path
manifest-entry-dependencies
manifest-pattern
manifest-pattern?
read-manifest
write-manifest
manifest-remove
manifest-installed?
manifest-matching-entries
manifest=?
profile-manifest
@ -90,6 +94,15 @@ (define-record-type* <manifest-entry> manifest-entry
(inputs manifest-entry-inputs ; list of inputs to build
(default '()))) ; this entry
(define-record-type* <manifest-pattern> manifest-pattern
make-manifest-pattern
manifest-pattern?
(name manifest-pattern-name) ; string
(version manifest-pattern-version ; string | #f
(default #f))
(output manifest-pattern-output ; string | #f
(default "out")))
(define (profile-manifest profile)
"Return the PROFILE's manifest."
(let ((file (string-append profile "/manifest")))
@ -148,29 +161,48 @@ (define (write-manifest manifest port)
"Write MANIFEST to PORT."
(write (manifest->sexp manifest) port))
(define (remove-manifest-entry name lst)
"Remove the manifest entry named NAME from LST."
(remove (match-lambda
(($ <manifest-entry> entry-name)
(string=? name entry-name)))
lst))
(define (entry-predicate pattern)
"Return a procedure that returns #t when passed a manifest entry that
matches NAME/OUTPUT/VERSION. OUTPUT and VERSION may be #f, in which case they
are ignored."
(match pattern
(($ <manifest-pattern> name version output)
(match-lambda
(($ <manifest-entry> entry-name entry-version entry-output)
(and (string=? entry-name name)
(or (not entry-output) (not output)
(string=? entry-output output))
(or (not version)
(string=? entry-version version))))))))
(define (manifest-remove manifest names)
"Remove entries for each of NAMES from MANIFEST."
(make-manifest (fold remove-manifest-entry
(define (manifest-remove manifest patterns)
"Remove entries for each of PATTERNS from MANIFEST. Each item in PATTERNS
must be a manifest-pattern."
(define (remove-entry pattern lst)
(remove (entry-predicate pattern) lst))
(make-manifest (fold remove-entry
(manifest-entries manifest)
names)))
patterns)))
(define (manifest-installed? manifest name)
"Return #t if MANIFEST has an entry for NAME, #f otherwise."
(define (->bool x)
(not (not x)))
(->bool (find (match-lambda
(($ <manifest-entry> entry-name)
(string=? entry-name name)))
(define (manifest-installed? manifest pattern)
"Return #t if MANIFEST has an entry matching PATTERN (a manifest-pattern),
#f otherwise."
(->bool (find (entry-predicate pattern)
(manifest-entries manifest))))
(define (manifest-matching-entries manifest patterns)
"Return all the entries of MANIFEST that match one of the PATTERNS."
(define predicates
(map entry-predicate patterns))
(define (matches? entry)
(any (lambda (pred)
(pred entry))
predicates))
(filter matches? (manifest-entries manifest)))
(define (manifest=? m1 m2)
"Return #t if manifests M1 and M2 are equal. This differs from 'equal?' in
that the 'inputs' field is ignored for the comparison, since it is know to

26
guix/scripts/package.scm
View file

@ -693,15 +693,20 @@ (define to-install
(append to-upgrade to-install))
(define (options->removable options manifest)
"Given options, return the list of manifest entries to be removed from
MANIFEST."
(let ((remove (filter-map (match-lambda
(('remove . package)
package)
(_ #f))
options)))
(filter (cut manifest-installed? manifest <>)
remove)))
"Given options, return the list of manifest patterns of packages to be
removed from MANIFEST."
(filter-map (match-lambda
(('remove . spec)
(call-with-values
(lambda ()
(package-specification->name+version+output spec))
(lambda (name version output)
(manifest-pattern
(name name)
(version version)
(output output)))))
(_ #f))
options))
;;;
@ -871,7 +876,8 @@ (define (delete-generation number)
(if (manifest=? new manifest)
(format (current-error-port) (_ "nothing to be done~%"))
(let ((prof-drv (profile-derivation (%store) new)))
(let ((prof-drv (profile-derivation (%store) new))
(remove (manifest-matching-entries manifest remove)))
(show-what-to-remove/install remove install dry-run?)
(show-what-to-build (%store) (list prof-drv)
#:use-substitutes?

97
tests/profiles.scm Normal file
View file

@ -0,0 +1,97 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (test-profiles)
#:use-module (guix profiles)
#:use-module (ice-9 match)
#:use-module (srfi srfi-64))
;; Test the (guix profile) module.
;; Example manifest entries.
(define guile-2.0.9
(manifest-entry
(name "guile")
(version "2.0.9")
(path "/gnu/store/...")
(output "out")))
(define guile-2.0.9:debug
(manifest-entry (inherit guile-2.0.9)
(output "debug")))
(test-begin "profiles")
(test-assert "manifest-installed?"
(let ((m (manifest (list guile-2.0.9 guile-2.0.9:debug))))
(and (manifest-installed? m (manifest-pattern (name "guile")))
(manifest-installed? m (manifest-pattern
(name "guile") (output "debug")))
(manifest-installed? m (manifest-pattern
(name "guile") (output "out")
(version "2.0.9")))
(not (manifest-installed?
m (manifest-pattern (name "guile") (version "1.8.8"))))
(not (manifest-installed?
m (manifest-pattern (name "guile") (output "foobar")))))))
(test-assert "manifest-matching-entries"
(let* ((e (list guile-2.0.9 guile-2.0.9:debug))
(m (manifest e)))
(and (null? (manifest-matching-entries m
(list (manifest-pattern
(name "python")))))
(equal? e
(manifest-matching-entries m
(list (manifest-pattern
(name "guile")
(output #f)))))
(equal? (list guile-2.0.9)
(manifest-matching-entries m
(list (manifest-pattern
(name "guile")
(version "2.0.9"))))))))
(test-assert "manifest-remove"
(let* ((m0 (manifest (list guile-2.0.9 guile-2.0.9:debug)))
(m1 (manifest-remove m0
(list (manifest-pattern (name "guile")))))
(m2 (manifest-remove m1
(list (manifest-pattern (name "guile"))))) ; same
(m3 (manifest-remove m2
(list (manifest-pattern
(name "guile") (output "debug")))))
(m4 (manifest-remove m3
(list (manifest-pattern (name "guile"))))))
(match (manifest-entries m2)
((($ <manifest-entry> "guile" "2.0.9" "debug"))
(and (equal? m1 m2)
(null? (manifest-entries m3))
(null? (manifest-entries m4)))))))
(test-end "profiles")
(exit (= (test-runner-fail-count (test-runner-current)) 0))
;;; Local Variables:
;;; eval: (put 'dummy-package 'scheme-indent-function 1)
;;; End: