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package: Add --manifest option.

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* guix/scripts/package.scm (show-help): Add help text.
  (%options): Add manifest option.
  (guix-package): Add manifest option handler.
* doc/guix.texi ("Invoking guix package"): Document it.
* tests/guix-package.sh: Add test.
This commit is contained in:
David Thompson 2015-05-14 21:11:57 -04:00
parent 8404ed5c3e
commit 1b6764477f
3 changed files with 92 additions and 44 deletions
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17
doc/guix.texi
View file

@ -1068,6 +1068,23 @@ substring ``emacs'':
$ guix package --upgrade . --do-not-upgrade emacs
@end example
@item --manifest=@var{file}
@itemx -m @var{file}
Create a new @dfn{generation} of the profile from the manifest object
returned by the Scheme code in @var{file}.
A manifest file may look like this:
@example
(use-package-modules guile emacs gcc)
(packages->manifest
(list guile-2.0
emacs
;; Use a specific package output.
(list gcc "debug")))
@end example
@item --roll-back
Roll back to the previous @dfn{generation} of the profile---i.e., undo
the last transaction.

103
guix/scripts/package.scm
View file

@ -432,6 +432,9 @@ (define (show-help)
-r, --remove=PACKAGE remove PACKAGE"))
(display (_ "
-u, --upgrade[=REGEXP] upgrade all the installed packages matching REGEXP"))
(display (_ "
-m, --manifest=FILE create a new profile generation with the manifest
from FILE"))
(display (_ "
--do-not-upgrade[=REGEXP] do not upgrade any packages matching REGEXP"))
(display (_ "
@ -524,6 +527,10 @@ (define %options
(lambda (opt name arg result arg-handler)
(values (alist-cons 'roll-back? #t result)
#f)))
(option '(#\m "manifest") #t #f
(lambda (opt name arg result arg-handler)
(values (alist-cons 'manifest arg result)
arg-handler)))
(option '(#\l "list-generations") #f #t
(lambda (opt name arg result arg-handler)
(values (cons `(query list-generations ,(or arg ""))
@ -800,6 +807,50 @@ (define (process-actions opts)
(define dry-run? (assoc-ref opts 'dry-run?))
(define profile (assoc-ref opts 'profile))
(define (build-and-use-profile manifest)
(let* ((bootstrap? (assoc-ref opts 'bootstrap?)))
(when (equal? profile %current-profile)
(ensure-default-profile))
(let* ((prof-drv (run-with-store (%store)
(profile-derivation
manifest
#:hooks (if bootstrap?
'()
%default-profile-hooks))))
(prof (derivation->output-path prof-drv)))
(show-what-to-build (%store) (list prof-drv)
#:use-substitutes?
(assoc-ref opts 'substitutes?)
#:dry-run? dry-run?)
(cond
(dry-run? #t)
((and (file-exists? profile)
(and=> (readlink* profile) (cut string=? prof <>)))
(format (current-error-port) (_ "nothing to be done~%")))
(else
(let* ((number (generation-number profile))
;; Always use NUMBER + 1 for the new profile,
;; possibly overwriting a "previous future
;; generation".
(name (generation-file-name profile
(+ 1 number))))
(and (build-derivations (%store) (list prof-drv))
(let* ((entries (manifest-entries manifest))
(count (length entries)))
(switch-symlinks name prof)
(switch-symlinks profile name)
(unless (string=? profile %current-profile)
(register-gc-root (%store) name))
(format #t (N_ "~a package in profile~%"
"~a packages in profile~%"
count)
count)
(display-search-paths entries profile)))))))))
;; First roll back if asked to.
(cond ((and (assoc-ref opts 'roll-back?)
(not dry-run?))
@ -834,60 +885,28 @@ (define profile (assoc-ref opts 'profile))
(alist-delete 'delete-generations opts)))
(_ #f))
opts))
((and (assoc-ref opts 'manifest)
(not dry-run?))
(let* ((file-name (assoc-ref opts 'manifest))
(user-module (make-user-module '((guix profiles)
(gnu))))
(manifest (load* file-name user-module)))
(format #t (_ "installing new manifest from ~a with ~d entries.~%")
file-name (length (manifest-entries manifest)))
(build-and-use-profile manifest)))
(else
(let* ((manifest (profile-manifest profile))
(install (options->installable opts manifest))
(remove (options->removable opts manifest))
(bootstrap? (assoc-ref opts 'bootstrap?))
(transaction (manifest-transaction (install install)
(remove remove)))
(new (manifest-perform-transaction
manifest transaction)))
(when (equal? profile %current-profile)
(ensure-default-profile))
(unless (and (null? install) (null? remove))
(let* ((prof-drv (run-with-store (%store)
(profile-derivation
new
#:hooks (if bootstrap?
'()
%default-profile-hooks))))
(prof (derivation->output-path prof-drv)))
(show-manifest-transaction (%store) manifest transaction
#:dry-run? dry-run?)
(show-what-to-build (%store) (list prof-drv)
#:use-substitutes?
(assoc-ref opts 'substitutes?)
#:dry-run? dry-run?)
(cond
(dry-run? #t)
((and (file-exists? profile)
(and=> (readlink* profile) (cut string=? prof <>)))
(format (current-error-port) (_ "nothing to be done~%")))
(else
(let* ((number (generation-number profile))
;; Always use NUMBER + 1 for the new profile,
;; possibly overwriting a "previous future
;; generation".
(name (generation-file-name profile
(+ 1 number))))
(and (build-derivations (%store) (list prof-drv))
(let* ((entries (manifest-entries new))
(count (length entries)))
(switch-symlinks name prof)
(switch-symlinks profile name)
(unless (string=? profile %current-profile)
(register-gc-root (%store) name))
(format #t (N_ "~a package in profile~%"
"~a packages in profile~%"
count)
count)
(display-search-paths entries
profile))))))))))))
(build-and-use-profile new))))))
(define (process-query opts)
;; Process any query specified by OPTS. Return #t when a query was

12
tests/guix-package.sh
View file

@ -242,3 +242,15 @@ export GUIX_BUILD_OPTIONS
available2="`guix package -A | sort`"
test "$available2" = "$available"
guix package -I
unset GUIX_BUILD_OPTIONS
# Applying a manifest file
cat > "$module_dir/manifest.scm"<<EOF
(use-package-modules bootstrap)
(packages->manifest (list %bootstrap-guile))
EOF
guix package --bootstrap -m "$module_dir/manifest.scm"
guix package -I | grep guile
test `guix package -I | wc -l` -eq 1