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Diffstat (limited to 'guix-build.in')
| -rw-r--r-- | guix-build.in | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/guix-build.in b/guix-build.in new file mode 100644 index 0000000000..380c203000 --- /dev/null +++ b/guix-build.in @@ -0,0 +1,179 @@ +#!/bin/sh +# aside from this initial boilerplate, this is actually -*- scheme -*- code + +GUILE_LOAD_COMPILED_PATH="@guilemoduledir@:$GUILE_LOAD_COMPILED_PATH" +export GUILE_LOAD_COMPILED_PATH + +main='(module-ref (resolve-interface '\''(guix-build)) '\'guix-build')' +exec ${GUILE-@GUILE@} -L "@guilemoduledir@" -l "$0" \ + -c "(apply $main (cdr (command-line)))" "$@" +!# +;;; Guix --- Nix package management from Guile. -*- coding: utf-8 -*- +;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org> +;;; +;;; This file is part of Guix. +;;; +;;; 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. +;;; +;;; 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 Guix. If not, see <http://www.gnu.org/licenses/>. + +(define-module (guix-build) + #:use-module (guix store) + #:use-module (guix derivations) + #:use-module (guix packages) + #:use-module (ice-9 format) + #:use-module (ice-9 match) + #:use-module (srfi srfi-1) + #:use-module (srfi srfi-26) + #:use-module (srfi srfi-37) + #:autoload (distro) (find-packages-by-name) + #:export (guix-build)) + +(define _ (cut gettext <> "guix")) +(define N_ (cut ngettext <> <> <> "guix")) + +(define %store + (open-connection)) + +(define (derivations-from-package-expressions exp) + "Eval EXP and return the corresponding derivation path." + (let ((p (eval exp (current-module)))) + (if (package? p) + (package-derivation %store p) + (begin + (format (current-error-port) + (_ "expression `~s' does not evaluate to a package") + exp) + (exit 1))))) + + +;;; +;;; Command-line options. +;;; + +(define %default-options + ;; Alist of default option values. + '()) + +(define (show-version) + (display "guix-build (@PACKAGE_NAME@) @PACKAGE_VERSION@\n")) + +(define (show-help) + (display (_ "Usage: guix-build [OPTION]... PACKAGE-OR-DERIVATION... +Build the given PACKAGE-OR-DERIVATION and return their output paths.\n")) + (display (_ " + -e, --expression=EXPR build the package EXPR evaluates to")) + (display (_ " + -K, --keep-failed keep build tree of failed builds")) + (display (_ " + -n, --dry-run do not build the derivations")) + (newline) + (display (_ " + -h, --help display this help and exit")) + (display (_ " + -V, --version display version information and exit")) + (newline) + (format #t (_ " +Report bugs to: ~a.~%") "@PACKAGE_BUGREPORT@")) + +(define %options + ;; Specifications of the command-line options. + (list (option '(#\h "help") #f #f + (lambda args + (show-help) + (exit 0))) + (option '(#\V "version") #f #f + (lambda args + (show-version) + (exit 0))) + + (option '(#\e "expression") #t #f + (lambda (opt name arg result) + (alist-cons 'expression + (call-with-input-string arg read) + result))) + (option '(#\K "keep-failed") #f #f + (lambda (opt name arg result) + (alist-cons 'keep-failed? #t result))) + (option '(#\n "dry-run") #f #F + (lambda (opt name arg result) + (alist-cons 'dry-run? #t result))))) + + +;;; +;;; Entry point. +;;; + +(define (guix-build . args) + (let-syntax ((leave (syntax-rules () + ((_ fmt args ...) + (begin + (format (current-error-port) fmt args ...) + (exit 1)))))) + (define (parse-options) + ;; Return the alist of option values. + (args-fold args %options + (lambda (opt name arg result) + (leave (_ "~A: unrecognized option") opt)) + (lambda (arg result) + (alist-cons 'argument arg result)) + %default-options)) + + (setlocale LC_ALL "") + (textdomain "guix") + + (let* ((opts (parse-options)) + (drv (filter-map (match-lambda + (('expression . exp) + (derivations-from-package-expressions exp)) + (('argument . (? derivation-path? drv)) + drv) + (('argument . (? string? x)) + (match (find-packages-by-name x) + ((p _ ...) + (package-derivation %store p)) + (_ + (leave (_ "~A: unknown package") x)))) + (_ #f)) + opts)) + (req (append-map (lambda (drv-path) + (let ((d (call-with-input-file drv-path + read-derivation))) + (derivation-prerequisites-to-build %store d))) + drv)) + (req* (delete-duplicates + (append (remove (compose (cut valid-path? %store <>) + derivation-path->output-path) + drv) + (map derivation-input-path req))))) + (if (assoc-ref opts 'dry-run?) + (format (current-error-port) + (N_ "~:[the following derivation would be built:~%~{ ~a~%~}~;~]" + "~:[the following derivations would be built:~%~{ ~a~%~}~;~]" + (length req*)) + (null? req*) req*) + (format (current-error-port) + (N_ "~:[the following derivation will be built:~%~{ ~a~%~}~;~]" + "~:[the following derivations will be built:~%~{ ~a~%~}~;~]" + (length req*)) + (null? req*) req*)) + + ;; TODO: Add more options. + (set-build-options %store + #:keep-failed? (assoc-ref opts 'keep-failed?)) + + (or (assoc-ref opts 'dry-run?) + (and (build-derivations %store drv) + (for-each (lambda (d) + (display (derivation-path->output-path d)) + (newline)) + drv)))))) |