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authorLudovic Courtès <ludo@gnu.org>2014-11-11 15:30:58 +0100
committerLudovic Courtès <ludo@gnu.org>2014-11-11 15:31:35 +0100
commit7047133f0777789107bd9f61f62c7d6ca10ed164 (patch)
tree3d7cfbdd51d0dc54cd83cb9aa58c0692b4274bc4
parent501d76475185127388c7776f89fb6526db4f1336 (diff)
import: Add GNU importer.
Suggested by Karl Berry <karl@gnu.org> and Andreas Enge <andreas@enge.fr>. * guix/import/gnu.scm, guix/scripts/import/gnu.scm: New files. * Makefile.am (MODULES): Add them. * guix/scripts/import.scm (importers): Add "gnu". * guix/gnu-maintenance.scm (gnu-release-archive-types): New procedure. (download-tarball): Export.
-rw-r--r--Makefile.am2
-rw-r--r--guix/gnu-maintenance.scm8
-rw-r--r--guix/import/gnu.scm116
-rw-r--r--guix/scripts/import.scm4
-rw-r--r--guix/scripts/import/gnu.scm104
5 files changed, 232 insertions, 2 deletions
diff --git a/Makefile.am b/Makefile.am
index 3350fd6994..5c4ce90f89 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -79,6 +79,7 @@ MODULES = \
guix/build/graft.scm \
guix/packages.scm \
guix/import/utils.scm \
+ guix/import/gnu.scm \
guix/import/snix.scm \
guix/scripts/download.scm \
guix/scripts/build.scm \
@@ -93,6 +94,7 @@ MODULES = \
guix/scripts/refresh.scm \
guix/scripts/system.scm \
guix/scripts/lint.scm \
+ guix/scripts/import/gnu.scm \
guix/scripts/import/nix.scm \
guix/scripts/environment.scm \
guix.scm \
diff --git a/guix/gnu-maintenance.scm b/guix/gnu-maintenance.scm
index bfc03359ac..ee84446549 100644
--- a/guix/gnu-maintenance.scm
+++ b/guix/gnu-maintenance.scm
@@ -64,7 +64,10 @@
releases
latest-release
+ gnu-release-archive-types
gnu-package-name->name+version
+
+ download-tarball
package-update-path
package-update
update-package-source))
@@ -382,6 +385,11 @@ open (resp. close) FTP connections; this can be useful to reuse connections."
(ftp-close conn)
#f)))))))))
+(define (gnu-release-archive-types release)
+ "Return the available types of archives for RELEASE---a list of strings such
+as \"gz\" or \"xz\"."
+ (map file-extension (gnu-release-files release)))
+
(define %package-name-rx
;; Regexp for a package name, e.g., "foo-X.Y". Since TeXmacs uses
;; "TeXmacs-X.Y-src", the `-src' suffix is allowed.
diff --git a/guix/import/gnu.scm b/guix/import/gnu.scm
new file mode 100644
index 0000000000..763b8d2a12
--- /dev/null
+++ b/guix/import/gnu.scm
@@ -0,0 +1,116 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; 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 <http://www.gnu.org/licenses/>.
+
+(define-module (guix import gnu)
+ #:use-module (guix gnu-maintenance)
+ #:use-module (guix utils)
+ #:use-module (guix store)
+ #:use-module (guix hash)
+ #:use-module (guix base32)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-11)
+ #:use-module (srfi srfi-26)
+ #:use-module (srfi srfi-34)
+ #:use-module (srfi srfi-35)
+ #:use-module (ice-9 match)
+ #:use-module (ice-9 regex)
+ #:export (gnu->guix-package))
+
+;;; Commentary:
+;;;
+;;; Generate a package declaration template for the latest version of a GNU
+;;; package, using meta-data available upstream for the package.
+;;;
+;;; Code:
+
+(define (file-sha256 file)
+ "Return the SHA256 hash of FILE as a bytevector."
+ (call-with-input-file file port-sha256))
+
+(define (qualified-url url)
+ "Return a fully-qualified URL based on URL."
+ (if (string-prefix? "/" url)
+ (string-append "http://www.gnu.org" url)
+ url))
+
+(define (preferred-archive-type release)
+ "Return the preferred type of archive for downloading RELEASE."
+ (find (cute member <> (gnu-release-archive-types release))
+ '("xz" "lz" "bz2" "tbz2" "gz" "tgz" "Z")))
+
+(define* (gnu-package->sexp package release
+ #:key (key-download 'interactive))
+ "Return the 'package' sexp for the RELEASE (a <gnu-release>) of PACKAGE (a
+<gnu-package>). Use KEY-DOWNLOAD as the OpenPGP key download policy (see
+'download-tarball' for details.)"
+ (define name
+ (gnu-package-name package))
+
+ (define url-base
+ ;; XXX: We assume that RELEASE's directory starts with "/gnu".
+ (string-append "mirror:/" (gnu-release-directory release)
+ "/" name "-"))
+
+ (define archive-type
+ (preferred-archive-type release))
+
+ (let ((tarball (with-store store
+ (download-tarball store name
+ (gnu-release-directory release)
+ (gnu-release-version release)
+ #:archive-type archive-type
+ #:key-download key-download))))
+ `(package
+ (name ,name)
+ (version ,(gnu-release-version release))
+ (source (origin
+ (method url-fetch)
+ (uri (string-append ,url-base version
+ ,(string-append ".tar." archive-type)))
+ (sha256
+ (base32
+ ,(bytevector->base32-string (file-sha256 tarball))))))
+ (build-system gnu-build-system)
+ (synopsis ,(gnu-package-doc-summary package))
+ (description ,(gnu-package-doc-description package))
+ (home-page ,(match (gnu-package-doc-urls package)
+ ((head . tail) (qualified-url head))))
+ (license find-by-yourself!))))
+
+(define* (gnu->guix-package name
+ #:key (key-download 'interactive))
+ "Return the package declaration for NAME as an s-expression. Use
+KEY-DOWNLOAD as the OpenPGP key download policy (see 'download-tarball' for
+details.)"
+ (match (latest-release name)
+ ((? gnu-release? release)
+ (let ((version (gnu-release-version release)))
+ (match (find-packages (regexp-quote name))
+ ((info . _)
+ (gnu-package->sexp info release))
+ (()
+ (raise (condition
+ (&message
+ (message "couldn't find meta-data for GNU package"))))))))
+ (_
+ (raise (condition
+ (&message
+ (message
+ "failed to determine latest release of GNU package")))))))
+
+;;; gnu.scm ends here
diff --git a/guix/scripts/import.scm b/guix/scripts/import.scm
index e9576bad8c..86ef05bc2c 100644
--- a/guix/scripts/import.scm
+++ b/guix/scripts/import.scm
@@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014 David Thompson <davet@gnu.org>
;;;
;;; This file is part of GNU Guix.
@@ -73,7 +73,7 @@ rather than \\n."
;;; Entry point.
;;;
-(define importers '("nix" "pypi"))
+(define importers '("gnu" "nix" "pypi"))
(define (resolve-importer name)
(let ((module (resolve-interface
diff --git a/guix/scripts/import/gnu.scm b/guix/scripts/import/gnu.scm
new file mode 100644
index 0000000000..5fac6db516
--- /dev/null
+++ b/guix/scripts/import/gnu.scm
@@ -0,0 +1,104 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; 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 <http://www.gnu.org/licenses/>.
+
+(define-module (guix scripts import gnu)
+ #:use-module (guix ui)
+ #:use-module (guix utils)
+ #:use-module (guix import gnu)
+ #:use-module (guix scripts import)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-11)
+ #:use-module (srfi srfi-37)
+ #:use-module (ice-9 match)
+ #:export (guix-import-gnu))
+
+
+;;;
+;;; Command-line options.
+;;;
+
+(define %default-options
+ '((key-download . interactive)))
+
+(define (show-help)
+ (display (_ "Usage: guix import gnu [OPTION...] PACKAGE
+Return a package declaration template for PACKAGE, a GNU package.\n"))
+ ;; '--key-download' taken from (guix scripts refresh).
+ (display (_ "
+ --key-download=POLICY
+ handle missing OpenPGP keys according to POLICY:
+ 'always', 'never', and 'interactive', which is also
+ used when 'key-download' is not specified"))
+ (newline)
+ (display (_ "
+ -h, --help display this help and exit"))
+ (display (_ "
+ -V, --version display version information and exit"))
+ (newline)
+ (show-bug-report-information))
+
+(define %options
+ ;; Specification of the command-line options.
+ (cons* (option '(#\h "help") #f #f
+ (lambda args
+ (show-help)
+ (exit 0)))
+ (option '(#\V "version") #f #f
+ (lambda args
+ (show-version-and-exit "guix import gnu")))
+ (option '("key-download") #t #f ;from (guix scripts refresh)
+ (lambda (opt name arg result)
+ (match arg
+ ((or "interactive" "always" "never")
+ (alist-cons 'key-download (string->symbol arg)
+ result))
+ (_
+ (leave (_ "unsupported policy: ~a~%")
+ arg)))))
+ %standard-import-options))
+
+
+;;;
+;;; Entry point.
+;;;
+
+(define (guix-import-gnu . 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))
+
+ (let* ((opts (parse-options))
+ (args (filter-map (match-lambda
+ (('argument . value)
+ value)
+ (_ #f))
+ (reverse opts))))
+ (match args
+ ((name)
+ (with-error-handling
+ (gnu->guix-package name
+ #:key-download (assoc-ref opts 'key-download))))
+ (_
+ (leave (_ "wrong number of arguments~%"))))))
+
+;;; gnu.scm ends here