912209ee61
* guix-build.in (derivations-from-package-expressions): Leave with an error message when SOURCE? is #t and P has no source. * tests/guix-build.sh: Add test.
276 lines
11 KiB
Scheme
276 lines
11 KiB
Scheme
#!/bin/sh
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# aside from this initial boilerplate, this is actually -*- scheme -*- code
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prefix="@prefix@"
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datarootdir="@datarootdir@"
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GUILE_LOAD_COMPILED_PATH="@guilemoduledir@:$GUILE_LOAD_COMPILED_PATH"
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export GUILE_LOAD_COMPILED_PATH
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main='(module-ref (resolve-interface '\''(guix-build)) '\'guix-build')'
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exec ${GUILE-@GUILE@} -L "@guilemoduledir@" -l "$0" \
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-c "(apply $main (cdr (command-line)))" "$@"
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!#
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;;; Guix --- Nix package management from Guile. -*- coding: utf-8 -*-
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;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of Guix.
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;;;
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;;; 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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;;; 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 Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix-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 (ice-9 format)
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#:use-module (ice-9 match)
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#:use-module (srfi srfi-1)
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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 (distro) (find-packages-by-name)
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#:export (guix-build))
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(define %store
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(open-connection))
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(define (derivations-from-package-expressions exp system source?)
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"Eval EXP and return the corresponding derivation path for SYSTEM.
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When SOURCE? is true, return the derivations of the package sources."
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(let ((p (eval exp (current-module))))
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(if (package? p)
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(if source?
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(let ((source (package-source p))
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(loc (package-location p)))
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(if source
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(package-source-derivation %store source)
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(leave (_ "~a:~a:~a: error: package `~a' has no source~%")
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(location-file loc) (location-line loc)
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(location-column loc) (package-name p))))
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(package-derivation %store p system))
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(leave (_ "expression `~s' does not evaluate to a package~%")
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exp))))
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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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(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 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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-d, --derivations return the derivation paths of the given packages"))
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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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--no-substitutes build instead of resorting to pre-built substitutes"))
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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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(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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(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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(format #t (_ "
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Report bugs to: ~a.~%") "@PACKAGE_BUGREPORT@"))
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(define %options
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;; Specifications of the command-line options.
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(list (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 '(#\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
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(call-with-input-string arg read)
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result)))
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(option '(#\K "keep-failed") #f #f
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(lambda (opt name arg result)
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(alist-cons 'keep-failed? #t result)))
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(option '(#\c "cores") #t #f
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(lambda (opt name arg result)
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(let ((c (false-if-exception (string->number arg))))
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(if c
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(alist-cons 'cores c result)
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(leave (_ "~a: not a number~%") arg)))))
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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 '("no-substitutes") #f #f
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(lambda (opt name arg result)
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(alist-cons 'substitutes? #f
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(alist-delete 'substitutes? 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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;;;
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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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(define (register-root drv root)
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;; Register ROOT as an indirect GC root for DRV's outputs.
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(let* ((root (string-append (canonicalize-path (dirname root))
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"/" root))
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(drv* (call-with-input-file drv read-derivation))
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(outputs (derivation-outputs drv*))
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(outputs* (map (compose derivation-output-path cdr) outputs)))
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(catch 'system-error
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(lambda ()
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(match outputs*
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((output)
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(symlink output root)
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(add-indirect-root %store root))
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((outputs ...)
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(fold (lambda (output count)
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(let ((root (string-append root "-" (number->string count))))
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(symlink output 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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outputs))))
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(lambda args
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(format (current-error-port)
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(_ "failed to create GC root `~a': ~a~%")
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root (strerror (system-error-errno args)))
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(exit 1)))))
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(setlocale LC_ALL "")
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(textdomain "guix")
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(setvbuf (current-output-port) _IOLBF)
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(setvbuf (current-error-port) _IOLBF)
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(with-error-handling
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(let* ((opts (parse-options))
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(src? (assoc-ref opts 'source?))
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(sys (assoc-ref opts 'system))
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(drv (filter-map (match-lambda
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(('expression . exp)
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(derivations-from-package-expressions exp sys
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src?))
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(('argument . (? derivation-path? drv))
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drv)
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(('argument . (? string? x))
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(match (find-packages-by-name x)
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((p _ ...)
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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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(_
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(leave (_ "~A: unknown package~%") x))))
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(_ #f))
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opts))
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(req (append-map (lambda (drv-path)
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(let ((d (call-with-input-file drv-path
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read-derivation)))
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(derivation-prerequisites-to-build %store d)))
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drv))
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(req* (delete-duplicates
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(append (remove (compose (cut valid-path? %store <>)
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derivation-path->output-path)
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drv)
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(map derivation-input-path req)))))
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(if (assoc-ref opts 'dry-run?)
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(format (current-error-port)
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(N_ "~:[the following derivation would be built:~%~{ ~a~%~}~;~]"
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"~:[the following derivations would be built:~%~{ ~a~%~}~;~]"
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(length req*))
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(null? req*) req*)
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(format (current-error-port)
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(N_ "~:[the following derivation will be built:~%~{ ~a~%~}~;~]"
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"~:[the following derivations will be built:~%~{ ~a~%~}~;~]"
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(length req*))
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(null? req*) req*))
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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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#:use-substitutes? (assoc-ref opts 'substitutes?))
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(if (assoc-ref opts 'derivations-only?)
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(format #t "~{~a~%~}" drv)
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(or (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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(let ((drv (call-with-input-file d
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read-derivation)))
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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-path->output-path
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d out-name)))
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(derivation-outputs drv)))))
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drv)
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(let ((roots (filter-map (match-lambda
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(('gc-root . root)
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root)
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(_ #f))
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opts)))
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(when roots
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(for-each (cut register-root <> <>)
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drv roots)
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#t))))))))
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;; Local Variables:
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;; eval: (put 'guard 'scheme-indent-function 1)
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;; End:
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