673 lines
28 KiB
Scheme
673 lines
28 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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;;;
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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 packages)
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#:use-module (guix utils)
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#:use-module (guix records)
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#:use-module (guix store)
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#:use-module (guix base32)
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#:use-module (guix derivations)
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#:use-module (guix build-system)
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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-9 gnu)
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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-35)
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#:re-export (%current-system
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%current-target-system)
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#:export (origin
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origin?
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origin-uri
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origin-method
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origin-sha256
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origin-file-name
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origin-patches
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origin-patch-flags
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origin-patch-inputs
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origin-patch-guile
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origin-snippet
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origin-modules
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origin-imported-modules
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base32
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<search-path-specification>
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search-path-specification
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search-path-specification?
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search-path-specification->sexp
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package
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package?
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package-name
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package-version
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package-full-name
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package-source
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package-build-system
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package-arguments
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package-inputs
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package-native-inputs
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package-propagated-inputs
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package-outputs
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package-native-search-paths
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package-search-paths
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package-synopsis
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package-description
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package-license
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package-home-page
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package-platforms
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package-maintainers
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package-properties
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package-location
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package-field-location
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package-transitive-inputs
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package-transitive-target-inputs
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package-transitive-native-inputs
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package-transitive-propagated-inputs
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package-source-derivation
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package-derivation
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package-cross-derivation
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package-output
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&package-error
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package-error?
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package-error-package
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&package-input-error
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package-input-error?
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package-error-invalid-input
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&package-cross-build-system-error
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package-cross-build-system-error?))
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;;; Commentary:
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;;;
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;;; This module provides a high-level mechanism to define packages in a
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;;; Guix-based distribution.
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;;;
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;;; Code:
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;; The source of a package, such as a tarball URL and fetcher---called
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;; "origin" to avoid name clash with `package-source', `source', etc.
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(define-record-type* <origin>
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origin make-origin
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origin?
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(uri origin-uri) ; string
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(method origin-method) ; procedure
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(sha256 origin-sha256) ; bytevector
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(file-name origin-file-name (default #f)) ; optional file name
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(patches origin-patches (default '())) ; list of file names
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(snippet origin-snippet (default #f)) ; sexp or #f
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(patch-flags origin-patch-flags ; list of strings
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(default '("-p1")))
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;; Patching requires Guile, GNU Patch, and a few more. These two fields are
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;; used to specify these dependencies when needed.
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(patch-inputs origin-patch-inputs ; input list or #f
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(default #f))
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(modules origin-modules ; list of module names
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(default '()))
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(imported-modules origin-imported-modules ; list of module names
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(default '()))
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(patch-guile origin-patch-guile ; package or #f
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(default #f)))
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(define-syntax base32
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(lambda (s)
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"Return the bytevector corresponding to the given Nix-base32
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representation."
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(syntax-case s ()
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((_ str)
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(string? (syntax->datum #'str))
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;; A literal string: do the conversion at expansion time.
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(with-syntax ((bv (nix-base32-string->bytevector
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(syntax->datum #'str))))
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#''bv))
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((_ str)
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#'(nix-base32-string->bytevector str)))))
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;; The specification of a search path.
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(define-record-type* <search-path-specification>
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search-path-specification make-search-path-specification
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search-path-specification?
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(variable search-path-specification-variable)
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(directories search-path-specification-directories)
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(separator search-path-specification-separator (default ":")))
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(define (search-path-specification->sexp spec)
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"Return an sexp representing SPEC, a <search-path-specification>. The sexp
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corresponds to the arguments expected by `set-path-environment-variable'."
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(match spec
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(($ <search-path-specification> variable directories separator)
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`(,variable ,directories ,separator))))
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;; A package.
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(define-record-type* <package>
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package make-package
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package?
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(name package-name) ; string
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(version package-version) ; string
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(source package-source) ; <origin> instance
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(build-system package-build-system) ; build system
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(arguments package-arguments ; arguments for the build method
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(default '()) (thunked))
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(inputs package-inputs ; input packages or derivations
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(default '()) (thunked))
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(propagated-inputs package-propagated-inputs ; same, but propagated
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(default '()) (thunked))
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(native-inputs package-native-inputs ; native input packages/derivations
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(default '()) (thunked))
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(self-native-input? package-self-native-input? ; whether to use itself as
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; a native input when cross-
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(default #f)) ; compiling
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(outputs package-outputs ; list of strings
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(default '("out")))
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; lists of
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; <search-path-specification>,
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; for native and cross
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; inputs
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(native-search-paths package-native-search-paths (default '()))
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(search-paths package-search-paths (default '()))
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(synopsis package-synopsis) ; one-line description
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(description package-description) ; one or two paragraphs
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(license package-license)
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(home-page package-home-page)
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(platforms package-platforms (default '()))
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(maintainers package-maintainers (default '()))
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(properties package-properties (default '())) ; alist for anything else
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(location package-location
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(default (and=> (current-source-location)
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source-properties->location))))
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(set-record-type-printer! <package>
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(lambda (package port)
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(let ((loc (package-location package))
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(format simple-format))
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(format port "#<package ~a-~a ~a:~a ~a>"
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(package-name package)
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(package-version package)
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(location-file loc)
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(location-line loc)
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(number->string (object-address
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package)
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16)))))
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(define (package-field-location package field)
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"Return the source code location of the definition of FIELD for PACKAGE, or
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#f if it could not be determined."
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(define (goto port line column)
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(unless (and (= (port-column port) (- column 1))
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(= (port-line port) (- line 1)))
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(unless (eof-object? (read-char port))
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(goto port line column))))
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(match (package-location package)
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(($ <location> file line column)
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(catch 'system
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(lambda ()
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;; In general we want to keep relative file names for modules.
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(with-fluids ((%file-port-name-canonicalization 'relative))
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(call-with-input-file (search-path %load-path file)
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(lambda (port)
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(goto port line column)
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(match (read port)
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(('package inits ...)
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(let ((field (assoc field inits)))
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(match field
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((_ value)
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;; Put the `or' here, and not in the first argument of
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;; `and=>', to work around a compiler bug in 2.0.5.
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(or (and=> (source-properties value)
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source-properties->location)
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(and=> (source-properties field)
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source-properties->location)))
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(_
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#f))))
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(_
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#f))))))
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(lambda _
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#f)))
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(_ #f)))
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;; Error conditions.
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(define-condition-type &package-error &error
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package-error?
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(package package-error-package))
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(define-condition-type &package-input-error &package-error
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package-input-error?
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(input package-error-invalid-input))
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(define-condition-type &package-cross-build-system-error &package-error
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package-cross-build-system-error?)
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(define (package-full-name package)
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"Return the full name of PACKAGE--i.e., `NAME-VERSION'."
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(string-append (package-name package) "-" (package-version package)))
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(define (%standard-patch-inputs)
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(let ((ref (lambda (module var)
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(module-ref (resolve-interface module) var))))
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`(("tar" ,(ref '(gnu packages base) 'tar))
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("xz" ,(ref '(gnu packages compression) 'xz))
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("bzip2" ,(ref '(gnu packages compression) 'bzip2))
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("gzip" ,(ref '(gnu packages compression) 'gzip))
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("lzip" ,(ref '(gnu packages compression) 'lzip))
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("patch" ,(ref '(gnu packages base) 'patch)))))
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(define (default-guile)
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"Return the default Guile package for SYSTEM."
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(let ((distro (resolve-interface '(gnu packages base))))
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(module-ref distro 'guile-final)))
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(define* (patch-and-repack store source patches
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#:key
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(inputs '())
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(snippet #f)
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(flags '("-p1"))
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(modules '())
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(imported-modules '())
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(guile-for-build (%guile-for-build))
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(system (%current-system)))
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"Unpack SOURCE (a derivation or store path), apply all of PATCHES, and
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repack the tarball using the tools listed in INPUTS. When SNIPPET is true,
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it must be an s-expression that will run from within the directory where
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SOURCE was unpacked, after all of PATCHES have been applied. MODULES and
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IMPORTED-MODULES specify modules to use/import for use by SNIPPET."
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(define source-file-name
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;; SOURCE is usually a derivation, but it could be a store file.
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(if (derivation? source)
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(derivation->output-path source)
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source))
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(define decompression-type
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(cond ((string-suffix? "gz" source-file-name) "gzip")
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((string-suffix? "bz2" source-file-name) "bzip2")
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((string-suffix? "lz" source-file-name) "lzip")
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(else "xz")))
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(define original-file-name
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;; Remove the store prefix plus the slash, hash, and hyphen.
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(let* ((sans (string-drop source-file-name
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(+ (string-length (%store-prefix)) 1)))
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(dash (string-index sans #\-)))
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(string-drop sans (+ 1 dash))))
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(define (numeric-extension? file-name)
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;; Return true if FILE-NAME ends with digits.
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(string-every char-set:hex-digit (file-extension file-name)))
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(define (tarxz-name file-name)
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;; Return a '.tar.xz' file name based on FILE-NAME.
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(let ((base (if (numeric-extension? file-name)
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original-file-name
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(file-sans-extension file-name))))
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(string-append base
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(if (equal? (file-extension base) "tar")
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".xz"
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".tar.xz"))))
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(define patch-inputs
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(map (lambda (number patch)
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(list (string-append "patch" (number->string number))
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(add-to-store store (basename patch) #t
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"sha256" patch)))
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(iota (length patches))
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patches))
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(define builder
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`(begin
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(use-modules (ice-9 ftw)
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(srfi srfi-1)
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(guix build utils))
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(let ((out (assoc-ref %outputs "out"))
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(xz (assoc-ref %build-inputs "xz"))
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(decomp (assoc-ref %build-inputs ,decompression-type))
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(source (assoc-ref %build-inputs "source"))
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(tar (string-append (assoc-ref %build-inputs "tar")
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"/bin/tar"))
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(patch (string-append (assoc-ref %build-inputs "patch")
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"/bin/patch")))
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(define (apply-patch input)
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(let ((patch* (assoc-ref %build-inputs input)))
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(format (current-error-port) "applying '~a'...~%" patch*)
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(zero? (system* patch "--batch" ,@flags "--input" patch*))))
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(define (first-file directory)
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;; Return the name of the first file in DIRECTORY.
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(car (scandir directory
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(lambda (name)
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(not (member name '("." "..")))))))
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(setenv "PATH" (string-append xz "/bin" ":"
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decomp "/bin"))
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;; SOURCE may be either a directory or a tarball.
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(and (if (file-is-directory? source)
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(let* ((store (or (getenv "NIX_STORE")
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"/nix/store"))
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(len (+ 1 (string-length store)))
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(base (string-drop source len))
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(dash (string-index base #\-))
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(directory (string-drop base (+ 1 dash))))
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(mkdir directory)
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(copy-recursively source directory)
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#t)
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(zero? (system* tar "xvf" source)))
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(let ((directory (first-file ".")))
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(format (current-error-port)
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"source is under '~a'~%" directory)
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(chdir directory)
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(and (every apply-patch ',(map car patch-inputs))
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,@(if snippet
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`((let ((module (make-fresh-user-module)))
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(module-use-interfaces! module
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(map resolve-interface
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',modules))
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(module-define! module '%build-inputs
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%build-inputs)
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(module-define! module '%outputs %outputs)
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((@ (system base compile) compile)
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',snippet
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#:to 'value
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#:opts %auto-compilation-options
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#:env module)))
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'())
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(begin (chdir "..") #t)
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(zero? (system* tar "cvfa" out directory))))))))
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(let ((name (tarxz-name original-file-name))
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(inputs (filter-map (match-lambda
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((name (? package? p))
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(and (member name (cons decompression-type
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'("tar" "xz" "patch")))
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(list name
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(package-derivation store p
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system)))))
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(or inputs (%standard-patch-inputs))))
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(modules (delete-duplicates (cons '(guix build utils) modules))))
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(build-expression->derivation store name builder
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#:inputs `(("source" ,source)
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,@inputs
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,@patch-inputs)
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#:system system
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#:modules modules
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#:guile-for-build guile-for-build)))
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(define* (package-source-derivation store source
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#:optional (system (%current-system)))
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"Return the derivation path for SOURCE, a package source, for SYSTEM."
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(match source
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(($ <origin> uri method sha256 name () #f)
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;; No patches, no snippet: this is a fixed-output derivation.
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(method store uri 'sha256 sha256 name
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#:system system))
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(($ <origin> uri method sha256 name (patches ...) snippet
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(flags ...) inputs (modules ...) (imported-modules ...)
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guile-for-build)
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;; Patches and/or a snippet.
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(let ((source (method store uri 'sha256 sha256 name
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#:system system))
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(guile (match (or guile-for-build (%guile-for-build)
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(default-guile))
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((? package? p)
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(package-derivation store p system))
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((? derivation? drv)
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drv))))
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(patch-and-repack store source patches
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#:inputs inputs
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#:snippet snippet
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#:flags flags
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#:system system
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#:modules modules
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#:imported-modules modules
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#:guile-for-build guile)))
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((and (? string?) (? direct-store-path?) file)
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file)
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((? string? file)
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(add-to-store store (basename file) #t "sha256" file))))
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(define (transitive-inputs inputs)
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(let loop ((inputs inputs)
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(result '()))
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(match inputs
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(()
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(delete-duplicates (reverse result))) ; XXX: efficiency
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(((and i (name (? package? p) sub ...)) rest ...)
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(let ((t (map (match-lambda
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((dep-name derivation ...)
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(cons (string-append name "/" dep-name)
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derivation)))
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(package-propagated-inputs p))))
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(loop (append t rest)
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(append t (cons i result)))))
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((input rest ...)
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(loop rest (cons input result))))))
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(define (package-transitive-inputs package)
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"Return the transitive inputs of PACKAGE---i.e., its direct inputs along
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with their propagated inputs, recursively."
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(transitive-inputs (append (package-native-inputs package)
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(package-inputs package)
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(package-propagated-inputs package))))
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(define (package-transitive-target-inputs package)
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"Return the transitive target inputs of PACKAGE---i.e., its direct inputs
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along with their propagated inputs, recursively. This only includes inputs
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for the target system, and not native inputs."
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(transitive-inputs (append (package-inputs package)
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(package-propagated-inputs package))))
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(define (package-transitive-native-inputs package)
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"Return the transitive native inputs of PACKAGE---i.e., its direct inputs
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along with their propagated inputs, recursively. This only includes inputs
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for the host system (\"native inputs\"), and not target inputs."
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(transitive-inputs (package-native-inputs package)))
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(define (package-transitive-propagated-inputs package)
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"Return the propagated inputs of PACKAGE, and their propagated inputs,
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recursively."
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(transitive-inputs (package-propagated-inputs package)))
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;;;
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;;; Package derivations.
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;;;
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(define %derivation-cache
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;; Package to derivation-path mapping.
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(make-weak-key-hash-table 100))
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(define (cache package system thunk)
|
||
"Memoize the return values of THUNK as the derivation of PACKAGE on
|
||
SYSTEM."
|
||
(let ((vals (call-with-values thunk list)))
|
||
;; Use `hashq-set!' instead of `hash-set!' because `hash' returns the
|
||
;; same value for all structs (as of Guile 2.0.6), and because pointer
|
||
;; equality is sufficient in practice.
|
||
(hashq-set! %derivation-cache package `((,system ,@vals)))
|
||
(apply values vals)))
|
||
|
||
(define-syntax-rule (cached package system body ...)
|
||
"Memoize the result of BODY for the arguments PACKAGE and SYSTEM.
|
||
Return the cached result when available."
|
||
(let ((thunk (lambda () body ...)))
|
||
(match (hashq-ref %derivation-cache package)
|
||
((alist (... ...))
|
||
(match (assoc-ref alist system)
|
||
((vals (... ...))
|
||
(apply values vals))
|
||
(#f
|
||
(cache package system thunk))))
|
||
(#f
|
||
(cache package system thunk)))))
|
||
|
||
(define* (expand-input store package input system #:optional cross-system)
|
||
"Expand INPUT, an input tuple, such that it contains only references to
|
||
derivation paths or store paths. PACKAGE is only used to provide contextual
|
||
information in exceptions."
|
||
(define (intern file)
|
||
;; Add FILE to the store. Set the `recursive?' bit to #t, so that
|
||
;; file permissions are preserved.
|
||
(add-to-store store (basename file) #t "sha256" file))
|
||
|
||
(define derivation
|
||
(if cross-system
|
||
(cut package-cross-derivation store <> cross-system system)
|
||
(cut package-derivation store <> system)))
|
||
|
||
(match input
|
||
(((? string? name) (? package? package))
|
||
(list name (derivation package)))
|
||
(((? string? name) (? package? package)
|
||
(? string? sub-drv))
|
||
(list name (derivation package)
|
||
sub-drv))
|
||
(((? string? name)
|
||
(and (? string?) (? derivation-path?) drv))
|
||
(list name drv))
|
||
(((? string? name)
|
||
(and (? string?) (? file-exists? file)))
|
||
;; Add FILE to the store. When FILE is in the sub-directory of a
|
||
;; store path, it needs to be added anyway, so it can be used as a
|
||
;; source.
|
||
(list name (intern file)))
|
||
(((? string? name) (? origin? source))
|
||
(list name (package-source-derivation store source system)))
|
||
(x
|
||
(raise (condition (&package-input-error
|
||
(package package)
|
||
(input x)))))))
|
||
|
||
(define* (package-derivation store package
|
||
#:optional (system (%current-system)))
|
||
"Return the <derivation> object of PACKAGE for SYSTEM."
|
||
|
||
;; Compute the derivation and cache the result. Caching is important
|
||
;; because some derivations, such as the implicit inputs of the GNU build
|
||
;; system, will be queried many, many times in a row.
|
||
(cached package system
|
||
|
||
;; Bind %CURRENT-SYSTEM so that thunked field values can refer
|
||
;; to it.
|
||
(parameterize ((%current-system system)
|
||
(%current-target-system #f))
|
||
(match package
|
||
(($ <package> name version source (= build-system-builder builder)
|
||
args inputs propagated-inputs native-inputs self-native-input?
|
||
outputs)
|
||
(let* ((inputs (package-transitive-inputs package))
|
||
(input-drvs (map (cut expand-input
|
||
store package <> system)
|
||
inputs))
|
||
(paths (delete-duplicates
|
||
(append-map (match-lambda
|
||
((_ (? package? p) _ ...)
|
||
(package-native-search-paths
|
||
p))
|
||
(_ '()))
|
||
inputs))))
|
||
|
||
(apply builder
|
||
store (package-full-name package)
|
||
(and source
|
||
(package-source-derivation store source system))
|
||
input-drvs
|
||
#:search-paths paths
|
||
#:outputs outputs #:system system
|
||
(args))))))))
|
||
|
||
(define* (package-cross-derivation store package target
|
||
#:optional (system (%current-system)))
|
||
"Cross-build PACKAGE for TARGET (a GNU triplet) from host SYSTEM (a Guix
|
||
system identifying string)."
|
||
(cached package (cons system target)
|
||
|
||
;; Bind %CURRENT-SYSTEM so that thunked field values can refer
|
||
;; to it.
|
||
(parameterize ((%current-system system)
|
||
(%current-target-system target))
|
||
(match package
|
||
(($ <package> name version source
|
||
(= build-system-cross-builder builder)
|
||
args inputs propagated-inputs native-inputs self-native-input?
|
||
outputs)
|
||
(unless builder
|
||
(raise (condition
|
||
(&package-cross-build-system-error
|
||
(package package)))))
|
||
|
||
(let* ((inputs (package-transitive-target-inputs package))
|
||
(input-drvs (map (cut expand-input
|
||
store package <>
|
||
system target)
|
||
inputs))
|
||
(host (append (if self-native-input?
|
||
`(("self" ,package))
|
||
'())
|
||
(package-transitive-native-inputs package)))
|
||
(host-drvs (map (cut expand-input
|
||
store package <> system)
|
||
host))
|
||
(all (append host inputs))
|
||
(paths (delete-duplicates
|
||
(append-map (match-lambda
|
||
((_ (? package? p) _ ...)
|
||
(package-search-paths p))
|
||
(_ '()))
|
||
all)))
|
||
(npaths (delete-duplicates
|
||
(append-map (match-lambda
|
||
((_ (? package? p) _ ...)
|
||
(package-native-search-paths
|
||
p))
|
||
(_ '()))
|
||
all))))
|
||
|
||
(apply builder
|
||
store (package-full-name package) target
|
||
(and source
|
||
(package-source-derivation store source system))
|
||
input-drvs host-drvs
|
||
#:search-paths paths
|
||
#:native-search-paths npaths
|
||
#:outputs outputs #:system system
|
||
(args))))))))
|
||
|
||
(define* (package-output store package
|
||
#:optional (output "out") (system (%current-system)))
|
||
"Return the output path of PACKAGE's OUTPUT for SYSTEM---where OUTPUT is the
|
||
symbolic output name, such as \"out\". Note that this procedure calls
|
||
`package-derivation', which is costly."
|
||
(let ((drv (package-derivation store package system)))
|
||
(derivation->output-path drv output)))
|