From 0afdc48532ea7d8eea32b3e3b78ba3832e7f18b2 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Thu, 1 Nov 2012 01:46:15 +0100 Subject: Add a preliminary `guix-package' command-line tool. * guix-package.in, tests/guix-package.sh: New files. * configure.ac: Output `guix-package'. * Makefile.am (TESTS): Add `tests/guix-package.sh'. (bin_SCRIPTS): Add `guix-package'. --- guix-package.in | 392 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 392 insertions(+) create mode 100644 guix-package.in (limited to 'guix-package.in') diff --git a/guix-package.in b/guix-package.in new file mode 100644 index 0000000000..5b10149d9f --- /dev/null +++ b/guix-package.in @@ -0,0 +1,392 @@ +#!/bin/sh +# aside from this initial boilerplate, this is actually -*- scheme -*- code + +prefix="@prefix@" +datarootdir="@datarootdir@" + +GUILE_LOAD_COMPILED_PATH="@guilemoduledir@:$GUILE_LOAD_COMPILED_PATH" +export GUILE_LOAD_COMPILED_PATH + +main='(module-ref (resolve-interface '\''(guix-package)) '\'guix-package')' +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 +;;; +;;; 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 . + +(define-module (guix-package) + #:use-module (guix store) + #:use-module (guix derivations) + #:use-module (guix packages) + #:use-module (guix utils) + #:use-module (ice-9 ftw) + #:use-module (ice-9 format) + #:use-module (ice-9 match) + #:use-module (ice-9 regex) + #:use-module (srfi srfi-1) + #:use-module (srfi srfi-11) + #:use-module (srfi srfi-26) + #:use-module (srfi srfi-34) + #:use-module (srfi srfi-37) + #:autoload (distro) (find-packages-by-name) + #:use-module (distro packages base) + #:export (guix-package)) + +(define _ (cut gettext <> "guix")) +(define N_ (cut ngettext <> <> <> "guix")) + +(define %store + (open-connection)) + + +;;; +;;; User environment. +;;; + +(define %user-environment-directory + (and=> (getenv "HOME") + (cut string-append <> "/.guix-profile"))) + +(define %profile-directory + (string-append "/nix/var/nix/profiles/" + "guix/" + (or (and=> (getenv "USER") + (cut string-append "per-user/" <>)) + "default"))) + +(define %current-profile + (string-append %profile-directory "/profile")) + +(define (profile-manifest profile) + "Return the PROFILE's manifest." + (let ((manifest (string-append profile "/manifest"))) + (if (file-exists? manifest) + (call-with-input-file manifest read) + '(manifest (version 0) (packages ()))))) + +(define (manifest-packages manifest) + "Return the packages listed in MANIFEST." + (match manifest + (('manifest ('version 0) ('packages packages)) + packages) + (_ + (error "unsupported manifest format" manifest)))) + +(define (latest-profile-number profile) + "Return the identifying number of the latest generation of PROFILE. +PROFILE is the name of the symlink to the current generation." + (define %profile-rx + (make-regexp (string-append "^" (regexp-quote (basename profile)) + "-([0-9]+)"))) + + (define* (scandir name #:optional (select? (const #t)) + (entry (file-system-fold enter? leaf down up skip error #f name lstat) + (lambda (files) + (sort files entry)) + (#f ; no profile directory + 0) + (() ; no profiles + 0) + ((profiles ...) ; former profiles around + (let ((numbers (map (compose string->number + (cut match:substring <> 1) + (cut regexp-exec %profile-rx <>)) + profiles))) + (fold (lambda (number highest) + (if (> number highest) + number + highest)) + 0 + numbers))))) + +(define (profile-derivation store packages) + "Return a derivation that builds a profile (a user environment) with +all of PACKAGES, a list of name/version/output/path tuples." + (define builder + `(begin + (use-modules (ice-9 pretty-print) + (guix build union)) + + (setvbuf (current-output-port) _IOLBF) + (setvbuf (current-error-port) _IOLBF) + + (let ((output (assoc-ref %outputs "out")) + (inputs (map cdr %build-inputs))) + (format #t "building user environment `~a' with ~a packages...~%" + output (length inputs)) + (union-build output inputs) + (call-with-output-file (string-append output "/manifest") + (lambda (p) + (pretty-print '(manifest (version 0) + (packages ,packages)) + p)))))) + + (build-expression->derivation store "user-environment" + (%current-system) + builder + (map (match-lambda + ((name version output path) + `(,name ,path))) + packages) + #:modules '((guix build union)))) + + +;;; +;;; Command-line options. +;;; + +(define %default-options + ;; Alist of default option values. + `((profile . ,%current-profile))) + +(define-syntax-rule (leave fmt args ...) + "Format FMT and ARGS to the error port and exit." + (begin + (format (current-error-port) fmt args ...) + (exit 1))) + +(define (show-version) + (display "guix-package (@PACKAGE_NAME@) @PACKAGE_VERSION@\n")) + +(define (show-help) + (display (_ "Usage: guix-package [OPTION]... PACKAGES... +Install, remove, or upgrade PACKAGES in a single transaction.\n")) + (display (_ " + -i, --install=PACKAGE install PACKAGE")) + (display (_ " + -r, --remove=PACKAGE remove PACKAGE")) + (display (_ " + -u, --upgrade=REGEXP upgrade all the installed packages matching REGEXP")) + (newline) + (display (_ " + -p, --profile=PROFILE use PROFILE instead of the user's default profile")) + (display (_ " + -n, --dry-run show what would be done without actually doing it")) + (display (_ " + -b, --bootstrap use the bootstrap Guile to build the profile")) + (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 + ;; Specification 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 '(#\i "install") #t #f + (lambda (opt name arg result) + (alist-cons 'install arg result))) + (option '(#\r "remove") #t #f + (lambda (opt name arg result) + (alist-cons 'remove arg result))) + (option '(#\p "profile") #t #f + (lambda (opt name arg result) + (alist-cons 'profile arg + (alist-delete 'profile result)))) + (option '(#\n "dry-run") #f #f + (lambda (opt name arg result) + (alist-cons 'dry-run? #t result))) + (option '(#\b "bootstrap") #f #f + (lambda (opt name arg result) + (alist-cons 'bootstrap? #t result))))) + + +;;; +;;; Entry point. +;;; + +(define (guix-package . 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) + (alist-cons 'argument arg result)) + %default-options)) + + (define (show-what-to-build drv dry-run?) + ;; Show what will/would be built in realizing the derivations listed + ;; in DRV. + (let* ((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 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*)))) + + (define (find-package name) + ;; Find the package NAME; NAME may contain a version number and a + ;; sub-derivation name. + (define request name) + (define versioned-rx + (make-regexp "^(.*)-([0-9][^-]*)$")) + + (let*-values (((name sub-drv) + (match (string-rindex name #\:) + (#f (values name "out")) + (colon (values (substring name (+ 1 colon)) + (substring name colon))))) + ((name version) + (match (regexp-exec versioned-rx name) + (#f (values name #f)) + (m (values (match:substring m 1) + (match:substring m 2)))))) + (match (find-packages-by-name name version) + ((p) + (list name version sub-drv p)) + ((p _ ...) + (format (current-error-port) + (_ "warning: ambiguous package specification `~a'~%") + request) + (format (current-error-port) + (_ "warning: choosing ~s~%") + p) + (list name version sub-drv p)) + (() + (leave (_ "~a: package not found~%") request))))) + + (setlocale LC_ALL "") + (textdomain "guix") + (setvbuf (current-output-port) _IOLBF) + (setvbuf (current-error-port) _IOLBF) + + (let ((opts (parse-options))) + (parameterize ((%guile-for-build + (package-derivation %store + (if (assoc-ref opts 'bootstrap?) + (@@ (distro packages base) + %bootstrap-guile) + guile-2.0)))) + (let* ((dry-run? (assoc-ref opts 'dry-run?)) + (profile (assoc-ref opts 'profile)) + (install (filter-map (match-lambda + (('install . (? store-path?)) + #f) + (('install . package) + (find-package package)) + (_ #f)) + opts)) + (drv (filter-map (match-lambda + ((name version sub-drv (? package? package)) + (package-derivation %store package)) + (_ #f)) + install)) + (install* (append + (filter-map (match-lambda + (('install . (? store-path? path)) + `(,(store-path-package-name path) + #f #f ,path)) + (_ #f)) + opts) + (map (lambda (tuple drv) + (match tuple + ((name version sub-drv _) + (let ((output-path + (derivation-path->output-path drv + sub-drv))) + `(,name ,version ,sub-drv ,output-path))))) + install drv))) + (remove (filter-map (match-lambda + (('remove . package) + package) + (_ #f)) + opts)) + (packages (append install* + (fold alist-delete + (manifest-packages (profile-manifest profile)) + remove)))) + + (show-what-to-build drv dry-run?) + + (or dry-run? + (and (build-derivations %store drv) + (let* ((prof-drv (profile-derivation %store packages)) + (prof (derivation-path->output-path prof-drv)) + (number (latest-profile-number profile)) + (name (format #f "~a/~a-~a-link" + (dirname profile) + (basename profile) (+ 1 number)))) + (and (build-derivations %store (list prof-drv)) + (begin + (symlink prof name) + (when (file-exists? profile) + (delete-file profile)) + (symlink name profile)))))))))) + +;; Local Variables: +;; eval: (put 'guard 'scheme-indent-function 1) +;; End: -- cgit v1.2.3