guix-devel/guix/scripts/pack.scm

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015, 2017, 2018 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2017 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2018 Konrad Hinsen <konrad.hinsen@fastmail.net>
;;; Copyright © 2018 Chris Marusich <cmmarusich@gmail.com>
;;;
;;; 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 (guix scripts pack)
#:use-module (guix scripts)
#:use-module (guix ui)
#:use-module (guix gexp)
#:use-module (guix utils)
#:use-module (guix store)
#:use-module (guix grafts)
#:use-module (guix monads)
#:use-module (guix modules)
#:use-module (guix packages)
#:use-module (guix profiles)
#:use-module (guix derivations)
#:use-module (guix search-paths)
#:use-module (guix build-system gnu)
#:use-module (guix scripts build)
#:use-module ((guix self) #:select (make-config.scm))
#:use-module (gnu packages)
#:use-module (gnu packages bootstrap)
#:use-module (gnu packages compression)
#:use-module (gnu packages guile)
#:use-module (gnu packages base)
#:autoload (gnu packages package-management) (guix)
#:autoload (gnu packages gnupg) (libgcrypt)
#:autoload (gnu packages guile) (guile2.0-json guile-json)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-9)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-37)
#:use-module (ice-9 match)
#:export (compressor?
lookup-compressor
self-contained-tarball
guix-pack))
;; Type of a compression tool.
(define-record-type <compressor>
(compressor name extension command)
compressor?
(name compressor-name) ;string (e.g., "gzip")
(extension compressor-extension) ;string (e.g., ".lz")
(command compressor-command)) ;gexp (e.g., #~("/gnu/store/…/gzip" "-9n"))
(define %compressors
;; Available compression tools.
(list (compressor "gzip" ".gz"
#~(#+(file-append gzip "/bin/gzip") "-9n"))
(compressor "lzip" ".lz"
#~(#+(file-append lzip "/bin/lzip") "-9"))
(compressor "xz" ".xz"
#~(#+(file-append xz "/bin/xz") "-e -T0"))
(compressor "bzip2" ".bz2"
#~(#+(file-append bzip2 "/bin/bzip2") "-9"))
(compressor "none" "" #f)))
;; This one is only for use in this module, so don't put it in %compressors.
(define bootstrap-xz
(compressor "bootstrap-xz" ".xz"
#~(#+(file-append %bootstrap-coreutils&co "/bin/xz") "-e -T0")))
(define (lookup-compressor name)
"Return the compressor object called NAME. Error out if it could not be
found."
(or (find (match-lambda
(($ <compressor> name*)
(string=? name* name)))
%compressors)
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(leave (G_ "~a: compressor not found~%") name)))
(define not-config?
;; Select (guix …) and (gnu …) modules, except (guix config).
(match-lambda
(('guix 'config) #f)
(('guix _ ...) #t)
(('gnu _ ...) #t)
(_ #f)))
(define guile-sqlite3&co
;; Guile-SQLite3 and its propagated inputs.
(cons guile-sqlite3
(package-transitive-propagated-inputs guile-sqlite3)))
(define* (self-contained-tarball name profile
#:key target
deduplicate?
(compressor (first %compressors))
localstatedir?
(symlinks '())
(archiver tar))
"Return a self-contained tarball containing a store initialized with the
closure of PROFILE, a derivation. The tarball contains /gnu/store; if
LOCALSTATEDIR? is true, it also contains /var/guix, including /var/guix/db
with a properly initialized store database.
SYMLINKS must be a list of (SOURCE -> TARGET) tuples denoting symlinks to be
added to the pack."
(define libgcrypt
(module-ref (resolve-interface '(gnu packages gnupg))
'libgcrypt))
(define schema
(and localstatedir?
(local-file (search-path %load-path
"guix/store/schema.sql"))))
(define build
(with-imported-modules `(((guix config)
=> ,(make-config.scm
#:libgcrypt libgcrypt))
,@(source-module-closure
`((guix build utils)
(guix build union)
(guix build store-copy)
(gnu build install))
#:select? not-config?))
(with-extensions guile-sqlite3&co
#~(begin
(use-modules (guix build utils)
((guix build union) #:select (relative-file-name))
(gnu build install)
(srfi srfi-1)
(srfi srfi-26)
(ice-9 match))
(define %root "root")
(define symlink->directives
;; Return "populate directives" to make the given symlink and its
;; parent directories.
(match-lambda
((source '-> target)
(let ((target (string-append #$profile "/" target))
(parent (dirname source)))
;; Never add a 'directory' directive for "/" so as to
;; preserve its ownnership when extracting the archive (see
;; below), and also because this would lead to adding the
;; same entries twice in the tarball.
`(,@(if (string=? parent "/")
'()
`((directory ,parent)))
(,source
-> ,(relative-file-name parent target)))))))
(define directives
;; Fully-qualified symlinks.
(append-map symlink->directives '#$symlinks))
;; The --sort option was added to GNU tar in version 1.28, released
;; 2014-07-28. For testing, we use the bootstrap tar, which is
;; older and doesn't support it.
(define tar-supports-sort?
(zero? (system* (string-append #+archiver "/bin/tar")
"cf" "/dev/null" "--files-from=/dev/null"
"--sort=name")))
;; Add 'tar' to the search path.
(setenv "PATH" #+(file-append archiver "/bin"))
;; Note: there is not much to gain here with deduplication and there
;; is the overhead of the '.links' directory, so turn it off.
;; Furthermore GNU tar < 1.30 sometimes fails to extract tarballs
;; with hard links:
;; <http://lists.gnu.org/archive/html/bug-tar/2017-11/msg00009.html>.
(populate-single-profile-directory %root
#:profile #$profile
#:closure "profile"
#:deduplicate? #f
#:register? #$localstatedir?
#:schema #$schema)
;; Create SYMLINKS.
(for-each (cut evaluate-populate-directive <> %root)
directives)
;; Create the tarball. Use GNU format so there's no file name
;; length limitation.
(with-directory-excursion %root
(exit
(zero? (apply system* "tar"
"-I"
(string-join '#+(compressor-command compressor))
"--format=gnu"
;; Avoid non-determinism in the archive. Use
;; mtime = 1, not zero, because that is what the
;; daemon does for files in the store (see the
;; 'mtimeStore' constant in local-store.cc.)
(if tar-supports-sort? "--sort=name" "--mtime=@1")
"--mtime=@1" ;for files in /var/guix
"--owner=root:0"
"--group=root:0"
"--check-links"
"-cvf" #$output
;; Avoid adding / and /var to the tarball, so
;; that the ownership and permissions of those
;; directories will not be overwritten when
;; extracting the archive. Do not include /root
;; because the root account might have a
;; different home directory.
#$@(if localstatedir?
'("./var/guix")
'())
(string-append "." (%store-directory))
(delete-duplicates
(filter-map (match-lambda
(('directory directory)
(string-append "." directory))
((source '-> _)
(string-append "." source))
(_ #f))
directives))))))))))
(gexp->derivation (string-append name ".tar"
(compressor-extension compressor))
build
#:references-graphs `(("profile" ,profile))))
(define* (squashfs-image name profile
#:key target
deduplicate?
(compressor (first %compressors))
localstatedir?
(symlinks '())
(archiver squashfs-tools-next))
"Return a squashfs image containing a store initialized with the closure of
PROFILE, a derivation. The image contains a subset of /gnu/store, empty mount
points for virtual file systems (like procfs), and optional symlinks.
SYMLINKS must be a list of (SOURCE -> TARGET) tuples denoting symlinks to be
added to the pack."
(define libgcrypt
;; XXX: Not strictly needed, but pulled by (guix store database).
(module-ref (resolve-interface '(gnu packages gnupg))
'libgcrypt))
(define build
(with-imported-modules `(((guix config)
=> ,(make-config.scm
#:libgcrypt libgcrypt))
,@(source-module-closure
'((guix build utils)
(guix build store-copy)
(gnu build install))
#:select? not-config?))
(with-extensions guile-sqlite3&co
#~(begin
(use-modules (guix build utils)
(gnu build install)
(guix build store-copy)
(srfi srfi-1)
(srfi srfi-26)
(ice-9 match))
(setenv "PATH" (string-append #$archiver "/bin"))
;; We need an empty file in order to have a valid file argument when
;; we reparent the root file system. Read on for why that's
;; necessary.
(with-output-to-file ".empty" (lambda () (display "")))
;; Create the squashfs image in several steps.
;; Add all store items. Unfortunately mksquashfs throws away all
;; ancestor directories and only keeps the basename. We fix this
;; in the following invocations of mksquashfs.
(apply invoke "mksquashfs"
`(,@(map store-info-item
(call-with-input-file "profile"
read-reference-graph))
,#$output
;; Do not perform duplicate checking because we
;; don't have any dupes.
"-no-duplicates"
"-comp"
,#+(compressor-name compressor)))
;; Here we reparent the store items. For each sub-directory of
;; the store prefix we need one invocation of "mksquashfs".
(for-each (lambda (dir)
(apply invoke "mksquashfs"
`(".empty"
,#$output
"-root-becomes" ,dir)))
(reverse (string-tokenize (%store-directory)
(char-set-complement (char-set #\/)))))
;; Add symlinks and mount points.
(apply invoke "mksquashfs"
`(".empty"
,#$output
;; Create SYMLINKS via pseudo file definitions.
,@(append-map
(match-lambda
((source '-> target)
(list "-p"
(string-join
;; name s mode uid gid symlink
(list source
"s" "777" "0" "0"
(string-append #$profile "/" target))))))
'#$symlinks)
;; Create empty mount points.
"-p" "/proc d 555 0 0"
"-p" "/sys d 555 0 0"
"-p" "/dev d 555 0 0"))))))
(gexp->derivation (string-append name
(compressor-extension compressor)
".squashfs")
build
#:references-graphs `(("profile" ,profile))))
(define* (docker-image name profile
#:key target
deduplicate?
(compressor (first %compressors))
localstatedir?
(symlinks '())
(archiver tar))
"Return a derivation to construct a Docker image of PROFILE. The
image is a tarball conforming to the Docker Image Specification, compressed
with COMPRESSOR. It can be passed to 'docker load'. If TARGET is true, it
must a be a GNU triplet and it is used to derive the architecture metadata in
the image."
(define defmod 'define-module) ;trick Geiser
(define config
;; (guix config) module for consumption by (guix gcrypt).
(scheme-file "gcrypt-config.scm"
#~(begin
(#$defmod (guix config)
#:export (%libgcrypt))
;; XXX: Work around <http://bugs.gnu.org/15602>.
(eval-when (expand load eval)
(define %libgcrypt
#+(file-append libgcrypt "/lib/libgcrypt"))))))
(define json
;; Pick the guile-json package that corresponds to the Guile used to build
;; derivations.
(if (string-prefix? "2.0" (package-version (default-guile)))
guile2.0-json
guile-json))
(define build
;; Guile-JSON is required by (guix docker).
(with-extensions (list json)
(with-imported-modules `(,@(source-module-closure '((guix docker)
(guix build store-copy))
#:select? not-config?)
((guix config) => ,config))
#~(begin
(use-modules (guix docker) (srfi srfi-19) (guix build store-copy))
(setenv "PATH" (string-append #$archiver "/bin"))
(build-docker-image #$output
(map store-info-item
(call-with-input-file "profile"
read-reference-graph))
#$profile
#:system (or #$target (utsname:machine (uname)))
#:symlinks '#$symlinks
#:compressor '#$(compressor-command compressor)
#:creation-time (make-time time-utc 0 1))))))
(gexp->derivation (string-append name ".tar"
(compressor-extension compressor))
build
#:references-graphs `(("profile" ,profile))))
;;;
;;; Compiling C programs.
;;;
;; A C compiler. That lowers to a single program that can be passed typical C
;; compiler flags, and it makes sure the whole toolchain is available.
(define-record-type <c-compiler>
(%c-compiler toolchain guile)
c-compiler?
(toolchain c-compiler-toolchain)
(guile c-compiler-guile))
(define* (c-compiler #:optional inputs
#:key (guile (default-guile)))
(%c-compiler inputs guile))
(define (bootstrap-c-compiler)
"Return the C compiler that uses the bootstrap toolchain. This is used only
by '--bootstrap', for testing purposes."
(define bootstrap-toolchain
(list (first (assoc-ref %bootstrap-inputs "gcc"))
(first (assoc-ref %bootstrap-inputs "binutils"))
(first (assoc-ref %bootstrap-inputs "libc"))))
(c-compiler bootstrap-toolchain
#:guile %bootstrap-guile))
(define-gexp-compiler (c-compiler-compiler (compiler <c-compiler>) system target)
"Lower COMPILER to a single script that does the right thing."
(define toolchain
(or (c-compiler-toolchain compiler)
(list (first (assoc-ref (standard-packages) "gcc"))
(first (assoc-ref (standard-packages) "ld-wrapper"))
(first (assoc-ref (standard-packages) "binutils"))
(first (assoc-ref (standard-packages) "libc"))
(gexp-input (first (assoc-ref (standard-packages) "libc"))
"static"))))
(define inputs
(match (append-map package-propagated-inputs
(filter package? toolchain))
(((labels things . _) ...)
(append toolchain things))))
(define search-paths
(cons $PATH
(append-map package-native-search-paths
(filter package? inputs))))
(define run
(with-imported-modules (source-module-closure
'((guix build utils)
(guix search-paths)))
#~(begin
(use-modules (guix build utils) (guix search-paths)
(ice-9 match))
(define (output-file args)
(let loop ((args args))
(match args
(() "a.out")
(("-o" file _ ...) file)
((head rest ...) (loop rest)))))
(set-search-paths (map sexp->search-path-specification
'#$(map search-path-specification->sexp
search-paths))
'#$inputs)
(let ((output (output-file (command-line))))
(apply invoke "gcc" (cdr (command-line)))
(invoke "strip" output)))))
(when target
;; TODO: Yep, we'll have to do it someday!
(leave (G_ "cross-compilation not implemented here;
please email '~a'~%")
(@ (guix config) %guix-bug-report-address)))
(gexp->script "c-compiler" run
#:guile (c-compiler-guile compiler)))
;;;
;;; Wrapped package.
;;;
(define* (wrapped-package package
#:optional (compiler (c-compiler)))
(define runner
(local-file (search-auxiliary-file "run-in-namespace.c")))
(define build
(with-imported-modules (source-module-closure
'((guix build utils)
(guix build union)))
#~(begin
(use-modules (guix build utils)
((guix build union) #:select (relative-file-name))
(ice-9 ftw)
(ice-9 match))
(define (strip-store-prefix file)
;; Given a file name like "/gnu/store/…-foo-1.2/bin/foo", return
;; "/bin/foo".
(let* ((len (string-length (%store-directory)))
(base (string-drop file (+ 1 len))))
(match (string-index base #\/)
(#f base)
(index (string-drop base index)))))
(define (build-wrapper program)
;; Build a user-namespace wrapper for PROGRAM.
(format #t "building wrapper for '~a'...~%" program)
(copy-file #$runner "run.c")
(substitute* "run.c"
(("@WRAPPED_PROGRAM@") program)
(("@STORE_DIRECTORY@") (%store-directory)))
(let* ((base (strip-store-prefix program))
(result (string-append #$output "/" base)))
(mkdir-p (dirname result))
(invoke #$compiler "-std=gnu99" "-static" "-Os" "-g0" "-Wall"
"run.c" "-o" result)
(delete-file "run.c")))
(setvbuf (current-output-port)
(cond-expand (guile-2.2 'line)
(else _IOLBF)))
;; Link the top-level files of PACKAGE so that search paths are
;; properly defined in PROFILE/etc/profile.
(mkdir #$output)
(for-each (lambda (file)
(unless (member file '("." ".." "bin" "sbin" "libexec"))
(let ((file* (string-append #$package "/" file)))
(symlink (relative-file-name #$output file*)
(string-append #$output "/" file)))))
(scandir #$package))
(for-each build-wrapper
(append (find-files #$(file-append package "/bin"))
(find-files #$(file-append package "/sbin"))
(find-files #$(file-append package "/libexec")))))))
(computed-file (string-append (package-full-name package "-") "R")
build))
(define (map-manifest-entries proc manifest)
"Apply PROC to all the entries of MANIFEST and return a new manifest."
(make-manifest
(map (lambda (entry)
(manifest-entry
(inherit entry)
(item (proc (manifest-entry-item entry)))))
(manifest-entries manifest))))
;;;
;;; Command-line options.
;;;
(define %default-options
;; Alist of default option values.
`((format . tarball)
(system . ,(%current-system))
(substitutes? . #t)
(build-hook? . #t)
(graft? . #t)
(verbosity . 0)
(symlinks . ())
(compressor . ,(first %compressors))))
(define %formats
;; Supported pack formats.
`((tarball . ,self-contained-tarball)
(squashfs . ,squashfs-image)
(docker . ,docker-image)))
(define %options
;; Specifications of the command-line options.
(cons* (option '(#\h "help") #f #f
(lambda args
(show-help)
(exit 0)))
(option '(#\V "version") #f #f
(lambda args
(show-version-and-exit "guix pack")))
(option '(#\n "dry-run") #f #f
(lambda (opt name arg result)
(alist-cons 'dry-run? #t (alist-cons 'graft? #f result))))
(option '(#\f "format") #t #f
(lambda (opt name arg result)
(alist-cons 'format (string->symbol arg) result)))
(option '(#\R "relocatable") #f #f
(lambda (opt name arg result)
(alist-cons 'relocatable? #t result)))
(option '(#\e "expression") #t #f
(lambda (opt name arg result)
(alist-cons 'expression arg result)))
(option '(#\m "manifest") #t #f
(lambda (opt name arg result)
(alist-cons 'manifest arg result)))
(option '(#\s "system") #t #f
(lambda (opt name arg result)
(alist-cons 'system arg
(alist-delete 'system result eq?))))
(option '("target") #t #f
(lambda (opt name arg result)
(alist-cons 'target arg
(alist-delete 'target result eq?))))
(option '(#\C "compression") #t #f
(lambda (opt name arg result)
(alist-cons 'compressor (lookup-compressor arg)
result)))
(option '(#\S "symlink") #t #f
(lambda (opt name arg result)
;; Note: Using 'string-split' allows us to handle empty
;; TARGET (as in "/opt/guile=", meaning that /opt/guile is
;; a symlink to the profile) correctly.
(match (string-split arg (char-set #\=))
((source target)
(let ((symlinks (assoc-ref result 'symlinks)))
(alist-cons 'symlinks
`((,source -> ,target) ,@symlinks)
(alist-delete 'symlinks result eq?))))
(x
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(leave (G_ "~a: invalid symlink specification~%")
arg)))))
(option '("localstatedir") #f #f
(lambda (opt name arg result)
(alist-cons 'localstatedir? #t result)))
(option '("bootstrap") #f #f
(lambda (opt name arg result)
(alist-cons 'bootstrap? #t result)))
(append %transformation-options
%standard-build-options)))
(define (show-help)
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(display (G_ "Usage: guix pack [OPTION]... PACKAGE...
Create a bundle of PACKAGE.\n"))
(show-build-options-help)
(newline)
(show-transformation-options-help)
(newline)
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(display (G_ "
-f, --format=FORMAT build a pack in the given FORMAT"))
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(display (G_ "
-R, --relocatable produce relocatable executables"))
(display (G_ "
-e, --expression=EXPR consider the package EXPR evaluates to"))
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(display (G_ "
-s, --system=SYSTEM attempt to build for SYSTEM--e.g., \"i686-linux\""))
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(display (G_ "
--target=TRIPLET cross-build for TRIPLET--e.g., \"armel-linux-gnu\""))
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(display (G_ "
-C, --compression=TOOL compress using TOOL--e.g., \"lzip\""))
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(display (G_ "
-S, --symlink=SPEC create symlinks to the profile according to SPEC"))
(display (G_ "
-m, --manifest=FILE create a pack with the manifest from FILE"))
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(display (G_ "
--localstatedir include /var/guix in the resulting pack"))
(display (G_ "
--bootstrap use the bootstrap binaries to build the pack"))
(newline)
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(display (G_ "
-h, --help display this help and exit"))
ui: Rename '_' to 'G_'. This avoids collisions with '_' when the latter is used as a 'match' pattern for instance. See <https://lists.gnu.org/archive/html/guix-devel/2017-04/msg00464.html>. * guix/ui.scm: Rename '_' to 'G_'. * po/guix/Makevars (XGETTEXT_OPTIONS): Adjust accordingly. * build-aux/compile-all.scm (warnings): Remove 'format'. * gnu/packages.scm, gnu/services.scm, gnu/services/shepherd.scm, gnu/system.scm, gnu/system/shadow.scm, guix/gnupg.scm, guix/http-client.scm, guix/import/cpan.scm, guix/import/elpa.scm, guix/import/pypi.scm, guix/nar.scm, guix/scripts.scm, guix/scripts/archive.scm, guix/scripts/authenticate.scm, guix/scripts/build.scm, guix/scripts/challenge.scm, guix/scripts/container.scm, guix/scripts/container/exec.scm, guix/scripts/copy.scm, guix/scripts/download.scm, guix/scripts/edit.scm, guix/scripts/environment.scm, guix/scripts/gc.scm, guix/scripts/graph.scm, guix/scripts/hash.scm, guix/scripts/import.scm, guix/scripts/import/cpan.scm, guix/scripts/import/cran.scm, guix/scripts/import/crate.scm, guix/scripts/import/elpa.scm, guix/scripts/import/gem.scm, guix/scripts/import/gnu.scm, guix/scripts/import/hackage.scm, guix/scripts/import/nix.scm, guix/scripts/import/pypi.scm, guix/scripts/import/stackage.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/scripts/pack.scm, guix/scripts/package.scm, guix/scripts/perform-download.scm, guix/scripts/publish.scm, guix/scripts/pull.scm, guix/scripts/refresh.scm, guix/scripts/size.scm, guix/scripts/substitute.scm, guix/scripts/system.scm, guix/ssh.scm, guix/upstream.scm: Use 'G_' instead of '_'. Most of this change was obtained by running: "sed -i -e's/(_ "/(G_ "/g' `find -name \*.scm`".
2017-05-03 15:57:02 +02:00
(display (G_ "
-V, --version display version information and exit"))
(newline)
(show-bug-report-information))
;;;
;;; Entry point.
;;;
(define (guix-pack . args)
(define opts
(parse-command-line args %options (list %default-options)))
(define maybe-package-argument
;; Given an option pair, return a package, a package/output tuple, or #f.
(match-lambda
(('argument . spec)
(call-with-values
(lambda ()
(specification->package+output spec))
list))
(('expression . exp)
(read/eval-package-expression exp))
(x #f)))
(define (manifest-from-args store opts)
(let* ((transform (options->transformation opts))
(packages (map (match-lambda
(((? package? package) output)
(list (transform store package) output))
((? package? package)
(list (transform store package) "out")))
(filter-map maybe-package-argument opts)))
(manifest-file (assoc-ref opts 'manifest)))
(cond
((and manifest-file (not (null? packages)))
(leave (G_ "both a manifest and a package list were given~%")))
(manifest-file
(let ((user-module (make-user-module '((guix profiles) (gnu)))))
(load* manifest-file user-module)))
(else (packages->manifest packages)))))
(with-error-handling
(with-store store
;; Set the build options before we do anything else.
(set-build-options-from-command-line store opts)
(parameterize ((%graft? (assoc-ref opts 'graft?))
(%guile-for-build (package-derivation
store
(if (assoc-ref opts 'bootstrap?)
%bootstrap-guile
(canonical-package guile-2.2))
(assoc-ref opts 'system)
#:graft? (assoc-ref opts 'graft?))))
(let* ((dry-run? (assoc-ref opts 'dry-run?))
(relocatable? (assoc-ref opts 'relocatable?))
(manifest (let ((manifest (manifest-from-args store opts)))
;; Note: We cannot honor '--bootstrap' here because
;; 'glibc-bootstrap' lacks 'libc.a'.
(if relocatable?
(map-manifest-entries wrapped-package manifest)
manifest)))
(pack-format (assoc-ref opts 'format))
(name (string-append (symbol->string pack-format)
"-pack"))
(target (assoc-ref opts 'target))
(bootstrap? (assoc-ref opts 'bootstrap?))
(compressor (if bootstrap?
bootstrap-xz
(assoc-ref opts 'compressor)))
(archiver (if (equal? pack-format 'squashfs)
squashfs-tools-next
(if bootstrap?
%bootstrap-coreutils&co
tar)))
(symlinks (assoc-ref opts 'symlinks))
(build-image (match (assq-ref %formats pack-format)
((? procedure? proc) proc)
(#f
(leave (G_ "~a: unknown pack format")
format))))
(localstatedir? (assoc-ref opts 'localstatedir?)))
(run-with-store store
(mlet* %store-monad ((profile (profile-derivation
manifest
#:relative-symlinks? relocatable?
#:hooks (if bootstrap?
'()
%default-profile-hooks)
#:locales? (not bootstrap?)
#:target target))
(drv (build-image name profile
#:target
target
#:compressor
compressor
#:symlinks
symlinks
#:localstatedir?
localstatedir?
#:archiver
archiver)))
(mbegin %store-monad
(show-what-to-build* (list drv)
#:use-substitutes?
(assoc-ref opts 'substitutes?)
#:dry-run? dry-run?)
(munless dry-run?
(built-derivations (list drv))
(return (format #t "~a~%"
(derivation->output-path drv))))))
#:system (assoc-ref opts 'system)))))))