dd67b429e1
* guix/scripts/build.scm (%standard-build-options): Change option handlers to support multiple seeds. * guix/scripts/package.scm (show-help): Remove --dry-run, --fallback, --no-substitutes, and --max-silent-time. (%options): Likewise, and add %STANDARD-BUILD-OPTIONS. (%default-options): Add 'verbosity'. (guix-package): Call 'set-build-options-from-command-line' instead of 'set-build-options'.
371 lines
15 KiB
Scheme
371 lines
15 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2013 Mark H Weaver <mhw@netris.org>
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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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(define-module (guix scripts build)
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#:use-module (guix ui)
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#:use-module (guix store)
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#:use-module (guix derivations)
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#:use-module (guix packages)
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#:use-module (guix utils)
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#:use-module (guix monads)
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#:use-module (ice-9 format)
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#:use-module (ice-9 match)
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#:use-module (ice-9 vlist)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-11)
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#:use-module (srfi srfi-26)
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#:use-module (srfi srfi-34)
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#:use-module (srfi srfi-37)
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#:autoload (gnu packages) (find-best-packages-by-name)
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#:export (derivation-from-expression
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%standard-build-options
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set-build-options-from-command-line
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show-build-options-help
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guix-build))
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(define (derivation-from-expression store str package-derivation
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system source?)
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"Read/eval STR and return the corresponding derivation path for SYSTEM.
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When SOURCE? is true and STR evaluates to a package, return the derivation of
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the package source; otherwise, use PACKAGE-DERIVATION to compute the
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derivation of a package."
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(match (read/eval str)
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((? package? p)
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(if source?
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(let ((source (package-source p)))
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(if source
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(package-source-derivation store source)
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(leave (_ "package `~a' has no source~%")
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(package-name p))))
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(package-derivation store p system)))
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((? procedure? proc)
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(run-with-store store (proc) #:system system))))
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(define (specification->package spec)
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"Return a package matching SPEC. SPEC may be a package name, or a package
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name followed by a hyphen and a version number. If the version number is not
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present, return the preferred newest version."
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(let-values (((name version)
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(package-name->name+version spec)))
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(match (find-best-packages-by-name name version)
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((p) ; one match
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p)
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((p x ...) ; several matches
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(warning (_ "ambiguous package specification `~a'~%") spec)
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(warning (_ "choosing ~a from ~a~%")
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(package-full-name p)
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(location->string (package-location p)))
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p)
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(_ ; no matches
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(if version
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(leave (_ "~A: package not found for version ~a~%")
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name version)
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(leave (_ "~A: unknown package~%") name))))))
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(define (register-root store paths root)
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"Register ROOT as an indirect GC root for all of PATHS."
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(let* ((root (string-append (canonicalize-path (dirname root))
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"/" root)))
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(catch 'system-error
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(lambda ()
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(match paths
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((path)
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(symlink path root)
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(add-indirect-root store root))
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((paths ...)
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(fold (lambda (path count)
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(let ((root (string-append root
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"-"
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(number->string count))))
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(symlink path root)
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(add-indirect-root store root))
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(+ 1 count))
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0
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paths))))
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(lambda args
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(leave (_ "failed to create GC root `~a': ~a~%")
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root (strerror (system-error-errno args)))))))
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;;;
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;;; Standard command-line build options.
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;;;
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(define (show-build-options-help)
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"Display on the current output port help about the standard command-line
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options handled by 'set-build-options-from-command-line', and listed in
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'%standard-build-options'."
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(display (_ "
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-K, --keep-failed keep build tree of failed builds"))
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(display (_ "
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-n, --dry-run do not build the derivations"))
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(display (_ "
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--fallback fall back to building when the substituter fails"))
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(display (_ "
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--no-substitutes build instead of resorting to pre-built substitutes"))
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(display (_ "
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--no-build-hook do not attempt to offload builds via the build hook"))
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(display (_ "
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--max-silent-time=SECONDS
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mark the build as failed after SECONDS of silence"))
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(display (_ "
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--verbosity=LEVEL use the given verbosity LEVEL"))
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(display (_ "
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-c, --cores=N allow the use of up to N CPU cores for the build")))
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(define (set-build-options-from-command-line store opts)
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"Given OPTS, an alist as returned by 'args-fold' given
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'%standard-build-options', set the corresponding build options on STORE."
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;; TODO: Add more options.
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(set-build-options store
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#:keep-failed? (assoc-ref opts 'keep-failed?)
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#:build-cores (or (assoc-ref opts 'cores) 0)
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#:fallback? (assoc-ref opts 'fallback?)
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#:use-substitutes? (assoc-ref opts 'substitutes?)
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#:use-build-hook? (assoc-ref opts 'build-hook?)
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#:max-silent-time (assoc-ref opts 'max-silent-time)
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#:verbosity (assoc-ref opts 'verbosity)))
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(define %standard-build-options
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;; List of standard command-line options for tools that build something.
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(list (option '(#\K "keep-failed") #f #f
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(lambda (opt name arg result . rest)
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(apply values
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(alist-cons 'keep-failed? #t result)
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rest)))
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(option '("fallback") #f #f
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(lambda (opt name arg result . rest)
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(apply values
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(alist-cons 'fallback? #t
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(alist-delete 'fallback? result))
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rest)))
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(option '("no-substitutes") #f #f
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(lambda (opt name arg result . rest)
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(apply values
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(alist-cons 'substitutes? #f
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(alist-delete 'substitutes? result))
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rest)))
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(option '("no-build-hook") #f #f
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(lambda (opt name arg result . rest)
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(apply values
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(alist-cons 'build-hook? #f
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(alist-delete 'build-hook? result))
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rest)))
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(option '("max-silent-time") #t #f
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(lambda (opt name arg result . rest)
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(apply values
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(alist-cons 'max-silent-time (string->number* arg)
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result)
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rest)))
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(option '("verbosity") #t #f
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(lambda (opt name arg result . rest)
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(let ((level (string->number arg)))
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(apply values
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(alist-cons 'verbosity level
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(alist-delete 'verbosity result))
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rest))))
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(option '(#\c "cores") #t #f
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(lambda (opt name arg result . rest)
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(let ((c (false-if-exception (string->number arg))))
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(if c
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(apply values (alist-cons 'cores c result) rest)
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(leave (_ "~a: not a number~%") arg)))))))
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;;;
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;;; Command-line options.
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;;;
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(define %default-options
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;; Alist of default option values.
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`((system . ,(%current-system))
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(substitutes? . #t)
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(build-hook? . #t)
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(max-silent-time . 3600)
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(verbosity . 0)))
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(define (show-help)
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(display (_ "Usage: guix build [OPTION]... PACKAGE-OR-DERIVATION...
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Build the given PACKAGE-OR-DERIVATION and return their output paths.\n"))
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(display (_ "
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-e, --expression=EXPR build the package or derivation EXPR evaluates to"))
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(display (_ "
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-S, --source build the packages' source derivations"))
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(display (_ "
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-s, --system=SYSTEM attempt to build for SYSTEM--e.g., \"i686-linux\""))
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(display (_ "
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--target=TRIPLET cross-build for TRIPLET--e.g., \"armel-linux-gnu\""))
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(display (_ "
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-d, --derivations return the derivation paths of the given packages"))
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(display (_ "
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-r, --root=FILE make FILE a symlink to the result, and register it
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as a garbage collector root"))
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(display (_ "
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--log-file return the log file names for the given derivations"))
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(newline)
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(show-build-options-help)
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(newline)
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(display (_ "
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-h, --help display this help and exit"))
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(display (_ "
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-V, --version display version information and exit"))
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(newline)
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(show-bug-report-information))
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(define %options
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;; Specifications of the command-line options.
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(cons* (option '(#\h "help") #f #f
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(lambda args
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(show-help)
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(exit 0)))
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(option '(#\V "version") #f #f
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(lambda args
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(show-version-and-exit "guix build")))
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(option '(#\S "source") #f #f
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(lambda (opt name arg result)
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(alist-cons 'source? #t result)))
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(option '(#\s "system") #t #f
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(lambda (opt name arg result)
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(alist-cons 'system arg
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(alist-delete 'system result eq?))))
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(option '("target") #t #f
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(lambda (opt name arg result)
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(alist-cons 'target arg
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(alist-delete 'target result eq?))))
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(option '(#\d "derivations") #f #f
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(lambda (opt name arg result)
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(alist-cons 'derivations-only? #t result)))
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(option '(#\e "expression") #t #f
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(lambda (opt name arg result)
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(alist-cons 'expression arg result)))
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(option '(#\n "dry-run") #f #f
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(lambda (opt name arg result)
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(alist-cons 'dry-run? #t result)))
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(option '(#\r "root") #t #f
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(lambda (opt name arg result)
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(alist-cons 'gc-root arg result)))
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(option '("log-file") #f #f
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(lambda (opt name arg result)
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(alist-cons 'log-file? #t result)))
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%standard-build-options))
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(define (options->derivations store opts)
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"Given OPTS, the result of 'args-fold', return a list of derivations to
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build."
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(define package->derivation
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(match (assoc-ref opts 'target)
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(#f package-derivation)
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(triplet
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(cut package-cross-derivation <> <> triplet <>))))
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(define src? (assoc-ref opts 'source?))
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(define sys (assoc-ref opts 'system))
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(filter-map (match-lambda
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(('expression . str)
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(derivation-from-expression store str package->derivation
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sys src?))
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(('argument . (? derivation-path? drv))
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(call-with-input-file drv read-derivation))
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(('argument . (? store-path?))
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;; Nothing to do; maybe for --log-file.
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#f)
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(('argument . (? string? x))
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(let ((p (specification->package x)))
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(if src?
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(let ((s (package-source p)))
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(package-source-derivation store s))
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(package->derivation store p sys))))
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(_ #f))
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opts))
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;;;
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;;; Entry point.
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;;;
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(define (guix-build . args)
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(define (parse-options)
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;; Return the alist of option values.
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(args-fold* args %options
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(lambda (opt name arg result)
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(leave (_ "~A: unrecognized option~%") name))
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(lambda (arg result)
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(alist-cons 'argument arg result))
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%default-options))
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(with-error-handling
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;; Ask for absolute file names so that .drv file names passed from the
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;; user to 'read-derivation' are absolute when it returns.
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(with-fluids ((%file-port-name-canonicalization 'absolute))
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(let* ((opts (parse-options))
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(store (open-connection))
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(drv (options->derivations store opts))
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(roots (filter-map (match-lambda
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(('gc-root . root) root)
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(_ #f))
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opts)))
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(set-build-options-from-command-line store opts)
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(unless (assoc-ref opts 'log-file?)
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(show-what-to-build store drv
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#:use-substitutes? (assoc-ref opts 'substitutes?)
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#:dry-run? (assoc-ref opts 'dry-run?)))
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(cond ((assoc-ref opts 'log-file?)
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(for-each (lambda (file)
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(let ((log (log-file store file)))
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(if log
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(format #t "~a~%" log)
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(leave (_ "no build log for '~a'~%")
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file))))
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(delete-duplicates
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(append (map derivation-file-name drv)
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(filter-map (match-lambda
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(('argument
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. (? store-path? file))
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file)
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(_ #f))
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opts)))))
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((assoc-ref opts 'derivations-only?)
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(format #t "~{~a~%~}" (map derivation-file-name drv))
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(for-each (cut register-root store <> <>)
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(map (compose list derivation-file-name) drv)
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roots))
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((not (assoc-ref opts 'dry-run?))
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(and (build-derivations store drv)
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(for-each (lambda (d)
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(format #t "~{~a~%~}"
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(map (match-lambda
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((out-name . out)
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(derivation->output-path
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d out-name)))
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(derivation-outputs d))))
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drv)
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(for-each (cut register-root store <> <>)
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(map (lambda (drv)
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(map cdr
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(derivation->output-paths drv)))
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drv)
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roots))))))))
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