;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2013 Ludovic Courtès ;;; ;;; 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 . (define-module (guix scripts pull) #:use-module (guix ui) #:use-module (guix store) #:use-module (guix config) #:use-module (guix packages) #:use-module (guix derivations) #:use-module (guix build download) #:use-module (gnu packages base) #:use-module ((gnu packages bootstrap) #:select (%bootstrap-guile)) #:use-module (gnu packages compression) #:use-module (gnu packages gnupg) #:use-module (srfi srfi-1) #:use-module (srfi srfi-11) #:use-module (srfi srfi-37) #:export (guix-pull)) (define %snapshot-url "http://hydra.gnu.org/job/guix/master/tarball/latest/download" ;;"http://git.savannah.gnu.org/cgit/guix.git/snapshot/guix-master.tar.gz" ) (define (download-and-store store) "Download the latest Guix tarball, add it to STORE, and return its store path." ;; FIXME: Authenticate the downloaded file! ;; FIXME: Optimize data transfers using rsync, Git, bsdiff, or GNUnet's DHT. (call-with-temporary-output-file (lambda (temp port) (let ((result (parameterize ((current-output-port (current-error-port))) (url-fetch %snapshot-url temp)))) (close port) (and result (add-to-store store "guix-latest.tar.gz" #f "sha256" temp)))))) (define (unpack store tarball) "Return a derivation that unpacks TARBALL into STORE and compiles Scheme files." (define builder `(begin (use-modules (guix build utils) (system base compile) (ice-9 ftw) (ice-9 match)) (let ((out (assoc-ref %outputs "out")) (tar (assoc-ref %build-inputs "tar")) (gzip (assoc-ref %build-inputs "gzip")) (gcrypt (assoc-ref %build-inputs "gcrypt")) (tarball (assoc-ref %build-inputs "tarball"))) (setenv "PATH" (string-append tar "/bin:" gzip "/bin")) (system* "tar" "xvf" tarball) (match (scandir "." (lambda (name) (and (not (member name '("." ".."))) (file-is-directory? name)))) ((dir) (chdir dir)) (x (error "tarball did not produce a single source directory" x))) (format #t "copying and compiling Guix to `~a'...~%" out) ;; Copy everything under guix/ and gnu/ plus guix.scm. (file-system-fold (lambda (dir stat result) ; enter? (or (string-prefix? "./guix" dir) (string-prefix? "./gnu" dir) (string=? "." dir))) (lambda (file stat result) ; leaf (when (or (not (string=? (dirname file) ".")) (string=? (basename file) "guix.scm")) (let ((target (string-drop file 1))) (copy-file file (string-append out target))))) (lambda (dir stat result) ; down (mkdir (string-append out (string-drop dir 1)))) (const #t) ; up (const #t) ; skip (lambda (file stat errno result) (error "cannot access file" file (strerror errno))) #f "." lstat) ;; Add a fake (guix config) module to allow the other modules to be ;; compiled. The user's (guix config) is the one that will be used. (copy-file "guix/config.scm.in" (string-append out "/guix/config.scm")) (substitute* (string-append out "/guix/config.scm") (("@LIBGCRYPT@") (string-append gcrypt "/lib/libgcrypt"))) ;; Augment the search path so Scheme code can be compiled. (set! %load-path (cons out %load-path)) (set! %load-compiled-path (cons out %load-compiled-path)) ;; Compile the .scm files. (for-each (lambda (file) (when (string-suffix? ".scm" file) (let ((go (string-append (string-drop-right file 4) ".go"))) (compile-file file #:output-file go #:opts %auto-compilation-options)))) ;; XXX: Because of the autoload hack in (guix build ;; download), we must build it first to avoid errors since ;; (gnutls) is unavailable. (cons (string-append out "/guix/build/download.scm") (find-files out "\\.scm"))) ;; Remove the "fake" (guix config). (delete-file (string-append out "/guix/config.scm")) (delete-file (string-append out "/guix/config.go"))))) (build-expression->derivation store "guix-latest" (%current-system) builder `(("tar" ,(package-derivation store tar)) ("gzip" ,(package-derivation store gzip)) ("gcrypt" ,(package-derivation store libgcrypt)) ("tarball" ,tarball)) #:modules '((guix build utils)))) ;;; ;;; Command-line options. ;;; (define %default-options ;; Alist of default option values. '()) (define (show-help) (display (_ "Usage: guix pull [OPTION]... Download and deploy the latest version of Guix.\n")) (display (_ " --verbose produce verbose output")) (display (_ " --bootstrap use the bootstrap Guile to build the new Guix")) (newline) (display (_ " -h, --help display this help and exit")) (display (_ " -V, --version display version information and exit")) (newline) (show-bug-report-information)) (define %options ;; Specifications of the command-line options. (list (option '("verbose") #f #f (lambda (opt name arg result) (alist-cons 'verbose? #t result))) (option '("bootstrap") #f #f (lambda (opt name arg result) (alist-cons 'bootstrap? #t result))) (option '(#\h "help") #f #f (lambda args (show-help) (exit 0))) (option '(#\V "version") #f #f (lambda args (show-version-and-exit "guix pull"))))) (define (guix-pull . args) (define (parse-options) ;; Return the alist of option values. (args-fold args %options (lambda (opt name arg result) (leave (_ "~A: unrecognized option~%") name)) (lambda (arg result) (leave (_ "~A: unexpected argument~%") arg)) %default-options)) (let ((opts (parse-options)) (store (open-connection))) (with-error-handling (let ((tarball (download-and-store store))) (unless tarball (leave (_ "failed to download up-to-date source, exiting\n"))) (parameterize ((%guile-for-build (package-derivation store (if (assoc-ref opts 'bootstrap?) %bootstrap-guile guile-final))) (current-build-output-port (if (assoc-ref opts 'verbose?) (current-error-port) (%make-void-port "w")))) (let*-values (((config-dir) (config-directory)) ((source drv) (unpack store tarball)) ((source-dir) (derivation-output-path (assoc-ref (derivation-outputs drv) "out")))) (show-what-to-build store (list source)) (if (build-derivations store (list source)) (let ((latest (string-append config-dir "/latest"))) (add-indirect-root store latest) (switch-symlinks latest source-dir) (format #t (_ "updated ~a successfully deployed under `~a'~%") %guix-package-name latest) #t))))))))