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import: Remove Nix importer.

Browse source 
This importer has suffered from bitrot and no longer works with current
Nix and Nixpkgs.  See <https://bugs.gnu.org/32339> and
<https://bugs.gnu.org/36255>.

* guix/import/snix.scm, guix/scripts/import/nix.scm,
tests/snix.scm: Remove.
* Makefile.am (MODULES, SCM_TESTS): Remove them.
* guix/scripts/import.scm (importers): Remove "nix".
* build-aux/test-env.in: Remove NIXPKGS variable.
* configure.ac: Remove '--with-nixpkgs' option.
* doc/guix.texi (Invoking guix import): Remove bit about "guix import
nix".
* etc/completion/fish/guix.fish: Likewise.
This commit is contained in:
Ludovic Courtès 2021-04-18 15:37:20 +02:00
parent b57f342ac8
commit d95168321f
No known key found for this signature in database
GPG key ID: 090B11993D9AEBB5
9 changed files with 4 additions and 689 deletions
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3
Makefile.am
View file

@ -261,7 +261,6 @@ MODULES = \
guix/import/opam.scm \ guix/import/opam.scm \
guix/import/print.scm \ guix/import/print.scm \
guix/import/pypi.scm \ guix/import/pypi.scm \
guix/import/snix.scm \
guix/import/stackage.scm \ guix/import/stackage.scm \
guix/import/texlive.scm \ guix/import/texlive.scm \
guix/import/utils.scm \ guix/import/utils.scm \
@ -300,7 +299,6 @@ MODULES = \
guix/scripts/import/go.scm \ guix/scripts/import/go.scm \
guix/scripts/import/hackage.scm \ guix/scripts/import/hackage.scm \
guix/scripts/import/json.scm \ guix/scripts/import/json.scm \
guix/scripts/import/nix.scm \
guix/scripts/import/opam.scm \ guix/scripts/import/opam.scm \
guix/scripts/import/pypi.scm \ guix/scripts/import/pypi.scm \
guix/scripts/import/stackage.scm \ guix/scripts/import/stackage.scm \
@ -489,7 +487,6 @@ SCM_TESTS = \
tests/services/linux.scm \ tests/services/linux.scm \
tests/sets.scm \ tests/sets.scm \
tests/size.scm \ tests/size.scm \
tests/snix.scm \
tests/status.scm \ tests/status.scm \
tests/store-database.scm \ tests/store-database.scm \
tests/store-deduplication.scm \ tests/store-deduplication.scm \

7
build-aux/test-env.in
View file

@ -1,7 +1,7 @@
#!/bin/sh #!/bin/sh
# GNU Guix --- Functional package management for GNU # GNU Guix --- Functional package management for GNU
# Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org> # Copyright © 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021 Ludovic Courtès <ludo@gnu.org>
# #
# This file is part of GNU Guix. # This file is part of GNU Guix.
# #
@ -91,14 +91,11 @@ then
# Place for the substituter's cache. # Place for the substituter's cache.
XDG_CACHE_HOME="$GUIX_STATE_DIRECTORY/cache-$$" XDG_CACHE_HOME="$GUIX_STATE_DIRECTORY/cache-$$"
# For the (guix import snix) tests.
NIXPKGS="@NIXPKGS@"
export NIX_IGNORE_SYMLINK_STORE NIX_STORE_DIR \ export NIX_IGNORE_SYMLINK_STORE NIX_STORE_DIR \
GUIX_LOG_DIRECTORY GUIX_STATE_DIRECTORY GUIX_DATABASE_DIRECTORY \ GUIX_LOG_DIRECTORY GUIX_STATE_DIRECTORY GUIX_DATABASE_DIRECTORY \
GUIX_BINARY_SUBSTITUTE_URL \ GUIX_BINARY_SUBSTITUTE_URL \
GUIX_ALLOW_UNAUTHENTICATED_SUBSTITUTES \ GUIX_ALLOW_UNAUTHENTICATED_SUBSTITUTES \
GUIX_CONFIGURATION_DIRECTORY XDG_CACHE_HOME NIXPKGS GUIX_CONFIGURATION_DIRECTORY XDG_CACHE_HOME
# Launch the daemon without chroot support because is may be # Launch the daemon without chroot support because is may be
# unavailable, for instance if we're not running as root. # unavailable, for instance if we're not running as root.

17
configure.ac
View file

@ -195,23 +195,6 @@ AC_SUBST([GZIP])
AC_SUBST([BZIP2]) AC_SUBST([BZIP2])
AC_SUBST([XZ]) AC_SUBST([XZ])
AC_ARG_WITH([nixpkgs],
[AS_HELP_STRING([--with-nixpkgs=DIR],
[search for Nixpkgs in DIR (for testing purposes only)])],
[case "$withval" in
yes|no) AC_MSG_ERROR([Please use `--with-nixpkgs=DIR'.]);;
*) NIXPKGS="$withval";;
esac],
[])
AC_MSG_CHECKING([for Nixpkgs source tree])
if test -f "$NIXPKGS/default.nix"; then
AC_MSG_RESULT([$NIXPKGS])
AC_SUBST([NIXPKGS])
else
AC_MSG_RESULT([not found])
fi
LIBGCRYPT_LIBDIR="no" LIBGCRYPT_LIBDIR="no"
LIBGCRYPT_PREFIX="no" LIBGCRYPT_PREFIX="no"

30
doc/guix.texi
View file

@ -11417,36 +11417,6 @@ and outputs a package expression:
guix import json hello.json guix import json hello.json
@end example @end example
@item nix
Import metadata from a local copy of the source of the
@uref{https://nixos.org/nixpkgs/, Nixpkgs distribution}@footnote{This
relies on the @command{nix-instantiate} command of
@uref{https://nixos.org/nix/, Nix}.}. Package definitions in Nixpkgs are
typically written in a mixture of Nix-language and Bash code. This
command only imports the high-level package structure that is written in
the Nix language. It normally includes all the basic fields of a
package definition.
When importing a GNU package, the synopsis and descriptions are replaced
by their canonical upstream variant.
Usually, you will first need to do:
@example
export NIX_REMOTE=daemon
@end example
@noindent
so that @command{nix-instantiate} does not try to open the Nix database.
As an example, the command below imports the package definition of
LibreOffice (more precisely, it imports the definition of the package
bound to the @code{libreoffice} top-level attribute):
@example
guix import nix ~/path/to/nixpkgs libreoffice
@end example
@item hackage @item hackage
@cindex hackage @cindex hackage
Import metadata from the Haskell community's central package archive Import metadata from the Haskell community's central package archive

2
etc/completion/fish/guix.fish
View file

@ -322,8 +322,6 @@ complete -f -c guix -n '__fish_guix_needs_command' -a import -d 'Run IMPORTER wi
##### import gnu ##### import gnu
complete -f -c guix -n '__fish_guix_using_command import; and not __fish_seen_subcommand_from $remotecommands' -a gnu -d 'Return a package declaration template for PACKAGE, a GNU package.' complete -f -c guix -n '__fish_guix_using_command import; and not __fish_seen_subcommand_from $remotecommands' -a gnu -d 'Return a package declaration template for PACKAGE, a GNU package.'
complete -f -c guix -n '__fish_guix_using_command import; and __fish_seen_subcommand_from gnu' -a "--key-download=" -d 'handle missing OpenPGP keys according to POLICY: "always", "never", and "interactive", which is also used when "key-download" is not specified.' complete -f -c guix -n '__fish_guix_using_command import; and __fish_seen_subcommand_from gnu' -a "--key-download=" -d 'handle missing OpenPGP keys according to POLICY: "always", "never", and "interactive", which is also used when "key-download" is not specified.'
##### import nix
complete -f -c guix -n '__fish_guix_using_command import; and not __fish_seen_subcommand_from $remotecommands' -a nix -d 'Import and convert the Nix expression ATTRIBUTE of NIXPKGS.'
##### import pypi ##### import pypi
complete -f -c guix -n '__fish_guix_using_command import; and not __fish_seen_subcommand_from $remotecommands' -a pypi -d 'Import and convert the PyPI package for PACKAGE-NAME.' complete -f -c guix -n '__fish_guix_using_command import; and not __fish_seen_subcommand_from $remotecommands' -a pypi -d 'Import and convert the PyPI package for PACKAGE-NAME.'
##### import cpan ##### import cpan

467
guix/import/snix.scm
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@ -1,467 +0,0 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 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 snix)
#:use-module (sxml ssax)
#:use-module (ice-9 popen)
#:use-module (ice-9 match)
#:use-module (ice-9 rdelim)
#:use-module (ice-9 format)
#:use-module (ice-9 regex)
#:use-module (ice-9 vlist)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-9)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-37)
#:use-module (system foreign)
#:use-module (rnrs bytevectors)
;; Use the 'package-name->name+version' procedure that works with
;; hyphen-separate name/version, not the one that works with '@'-separated
;; name/version. Subtle!
#:use-module ((guix utils) #:hide (package-name->name+version))
#:use-module ((guix build utils) #:select (package-name->name+version))
#:use-module (guix import utils)
#:use-module (guix base16)
#:use-module (guix base32)
#:use-module (guix config)
#:use-module (guix gnu-maintenance)
#:export (open-nixpkgs
xml->snix
nixpkgs->guix-package))
;;; Commentary:
;;;
;;; Converting Nix code to s-expressions, and then to Guix `package'
;;; declarations, using the XML output of `nix-instantiate'.
;;;
;;; Code:
;;;
;;; SNix.
;;;
;; Nix object types visible in the XML output of `nix-instantiate' and
;; mapping to S-expressions (we map to sexps, not records, so that we
;; can do pattern matching):
;;
;; at (at varpat attrspat)
;; attr (attribute loc name value)
;; attrs (attribute-set attributes)
;; attrspat (attribute-set-pattern patterns)
;; bool #f|#t
;; derivation (derivation drv-path out-path attributes)
;; ellipsis '...
;; expr (snix loc body ...)
;; function (function loc at|attrspat|varpat)
;; int int
;; list list
;; null 'null
;; path string
;; string string
;; unevaluated 'unevaluated
;; varpat (varpat name)
;;
;; Initially ATTRIBUTES in `derivation' and `attribute-set' was a promise;
;; however, handling `repeated' nodes makes it impossible to do anything
;; lazily because the whole SXML tree has to be traversed to maintain the
;; list of known derivations.
(define (xml-element->snix elem attributes body derivations)
"Return an SNix element corresponding to XML element ELEM."
(define (loc)
(location (assq-ref attributes 'path)
(assq-ref attributes 'line)
(assq-ref attributes 'column)))
(case elem
((at)
(values `(at ,(car body) ,(cadr body)) derivations))
((attr)
(let ((name (assq-ref attributes 'name)))
(cond ((null? body)
(values `(attribute-pattern ,name) derivations))
((and (pair? body) (null? (cdr body)))
(values `(attribute ,(loc) ,name ,(car body))
derivations))
(else
(error "invalid attribute body" name (loc) body)))))
((attrs)
(values `(attribute-set ,(reverse body)) derivations))
((attrspat)
(values `(attribute-set-pattern ,body) derivations))
((bool)
(values (string-ci=? "true" (assq-ref attributes 'value))
derivations))
((derivation)
(let ((drv-path (assq-ref attributes 'drvPath))
(out-path (assq-ref attributes 'outPath)))
(if (equal? body '(repeated))
(let ((body (vhash-assoc drv-path derivations)))
(if (pair? body)
(values `(derivation ,drv-path ,out-path ,(cdr body))
derivations)
;; DRV-PATH hasn't been encountered yet but may be later
;; (see <http://article.gmane.org/gmane.linux.distributions.nixos/5946>.)
;; Return an `unresolved' node.
(values `(unresolved
,(lambda (derivations)
(let ((body (vhash-assoc drv-path derivations)))
(if (pair? body)
`(derivation ,drv-path ,out-path
,(cdr body))
(error "no previous occurrence of derivation"
drv-path)))))
derivations)))
(values `(derivation ,drv-path ,out-path ,body)
(vhash-cons drv-path body derivations)))))
((ellipsis)
(values '... derivations))
((expr)
(values `(snix ,(loc) ,@body) derivations))
((function)
(values `(function ,(loc) ,body) derivations))
((int)
(values (string->number (assq-ref attributes 'value))
derivations))
((list)
(values body derivations))
((null)
(values 'null derivations))
((path)
(values (assq-ref attributes 'value) derivations))
((repeated)
(values 'repeated derivations))
((string)
(values (assq-ref attributes 'value) derivations))
((unevaluated)
(values 'unevaluated derivations))
((varpat)
(values `(varpat ,(assq-ref attributes 'name)) derivations))
(else (error "unhandled Nix XML element" elem))))
(define (resolve snix derivations)
"Return a new SNix tree where `unresolved' nodes from SNIX have been
replaced by the result of their application to DERIVATIONS, a vhash."
(let loop ((node snix)
(seen vlist-null))
(if (vhash-assq node seen)
(values node seen)
(match node
(('unresolved proc)
(let ((n (proc derivations)))
(values n seen)))
((tag body ...)
(let ((body+seen (fold (lambda (n body+seen)
(call-with-values
(lambda ()
(loop n (cdr body+seen)))
(lambda (n* seen)
(cons (cons n* (car body+seen))
(vhash-consq n #t seen)))))
(cons '() (vhash-consq node #t seen))
body)))
(values (cons tag (reverse (car body+seen)))
(vhash-consq node #t (cdr body+seen)))))
(anything
(values anything seen))))))
(define xml->snix
(let ((parse
(ssax:make-parser NEW-LEVEL-SEED
(lambda (elem-gi attributes namespaces expected-content
seed)
(cons '() (cdr seed)))
FINISH-ELEMENT
(lambda (elem-gi attributes namespaces parent-seed
seed)
(let ((snix (car seed))
(derivations (cdr seed)))
(let-values (((snix derivations)
(xml-element->snix elem-gi
attributes
snix
derivations)))
(cons (cons snix (car parent-seed))
derivations))))
CHAR-DATA-HANDLER
(lambda (string1 string2 seed)
;; Discard inter-node strings, which are blanks.
seed))))
(lambda (port)
"Return the SNix represention of TREE, an SXML tree as returned by
parsing the XML output of `nix-instantiate' on Nixpkgs."
(match (parse port (cons '() vlist-null))
(((snix) . derivations)
(resolve snix derivations))))))
(define (attribute-value attribute)
"Return the value of ATTRIBUTE."
(match attribute
(('attribute _ _ value) value)))
(define (derivation-source derivation)
"Return the \"src\" attribute of DERIVATION or #f if not found."
(match derivation
(('derivation _ _ (attributes ...))
(find-attribute-by-name "src" attributes))))
(define (derivation-output-path derivation)
"Return the output path of DERIVATION."
(match derivation
(('derivation _ out-path _)
out-path)
(_ #f)))
(define (source-output-path src)
"Return the output path of SRC, the \"src\" attribute of a derivation."
(derivation-output-path (attribute-value src)))
(define (source-urls src)
"Return the URLs of SRC, the \"src\" attribute of a derivation."
(match src
(('attribute _ _ ('derivation _ _ (attributes ...)))
(match (find-attribute-by-name "urls" attributes)
(('attribute _ _ value)
value)))
(_ #f)))
(define (source-sha256 src)
"Return the sha256 of SRC, the \"src\" attribute of a derivation, as a
bytevector."
(match src
(('attribute _ _ ('derivation _ _ (attributes ...)))
(match (find-attribute-by-name "outputHash" attributes)
(('attribute _ _ value)
(match value
((= string-length 52)
(nix-base32-string->bytevector value))
((= string-length 64)
(base16-string->bytevector value))
(_
(error "unsupported hash format" value))))))
(_ #f)))
(define (derivation-source-output-path derivation)
"Return the output path of the \"src\" attribute of DERIVATION or #f
if DERIVATION lacks an \"src\" attribute."
(and=> (derivation-source derivation) source-output-path))
(define* (open-nixpkgs nixpkgs #:optional attribute)
"Return an input pipe to the XML representation of Nixpkgs. When
ATTRIBUTE is true, only that attribute is considered."
(with-fluids ((%default-port-encoding "UTF-8"))
(let ((cross-system (format #f "{
config = \"i686-guix-linux-gnu\";
libc = \"glibc\";
arch = \"guix\";
withTLS = true;
float = \"hard\";
openssl.system = \"linux-generic32\";
platform = (import ~a/pkgs/top-level/platforms.nix).sheevaplug;
}" nixpkgs)))
(apply open-pipe* OPEN_READ
"nix-instantiate" "--strict" "--eval-only" "--xml"
;; Pass a dummy `crossSystem' argument so that `buildInputs' and
;; `nativeBuildInputs' are not coalesced.
;; XXX: This is hacky and has other problems.
;"--arg" "crossSystem" cross-system
`(,@(if attribute
`("-A" ,attribute)
'())
,nixpkgs)))))
(define (pipe-failed? pipe)
"Close pipe and return its status if it failed."
(let ((status (close-pipe pipe)))
(if (or (status:term-sig status)
(not (= (status:exit-val status) 0)))
status
#f)))
(define (find-attribute-by-name name attributes)
"Return attribute NAME in ATTRIBUTES, an attribute set or list of SNix
attributes, or #f if NAME cannot be found."
(find (lambda (a)
(match a
(('attribute _ (? (cut string=? <> name)) _)
a)
(_ #f)))
(match attributes
(('attribute-set (attributes ...))
attributes)
(_
attributes))))
(define (license-variable license)
"Return the name of the (guix licenses) variable for LICENSE."
(match license
("GPLv2+" 'gpl2+)
("GPLv3+" 'gpl3+)
("LGPLv2+" 'lgpl2.1+)
("LGPLv2.1+" 'lgpl2.1+)
("LGPLv3+" 'lgpl3+)
(('attribute-set _ ...)
;; At some point in 2013, Nixpkgs switched to attribute sets to represent
;; licenses. These are listed in lib/licenses.nix.
(match (and=> (find-attribute-by-name "shortName" license)
attribute-value)
("agpl3Plus" 'agpl3+)
("gpl2Plus" 'gpl2+)
("gpl3Plus" 'gpl3+)
("lgpl2Plus" 'lgpl2.0+)
("lgpl21Plus" 'lgpl2.1+)
("lgpl3Plus" 'lgpl3+)
((? string? x) x)
(_ license)))
(_ license)))
(define (package-source-output-path package)
"Return the output path of the \"src\" derivation of PACKAGE."
(derivation-source-output-path (attribute-value package)))
;;;
;;; Conversion of "Nix expressions" to "Guix expressions".
;;;
(define (snix-derivation->guix-package derivation)
"Return the `package' s-expression corresponding to SNix DERIVATION, a
Nixpkgs `stdenv.mkDerivation'-style derivation, and the original source
location of DERIVATION."
(match derivation
(('derivation _ _ (attributes ...))
(let*-values (((full-name loc)
(match (find-attribute-by-name "name" attributes)
(('attribute loc _ value)
(values value loc))
(_
(values #f #f))))
((name version)
(package-name->name+version full-name)))
(define (convert-inputs type)
;; Convert the derivation's input from a list of SNix derivations to
;; a list of name/variable pairs.
(match (and=> (find-attribute-by-name type attributes)
attribute-value)
(#f
'())
((inputs ...)
;; Inputs can be either derivations or the null value.
(filter-map (match-lambda
(('derivation _ _ (attributes ...))
(let* ((full-name
(attribute-value
(find-attribute-by-name "name" attributes)))
(name (package-name->name+version full-name)))
(list name
(list 'unquote (string->symbol name)))))
('null #f))
inputs))))
(define (maybe-inputs guix-name inputs)
(match inputs
(()
'())
((inputs ...)
(list (list guix-name
(list 'quasiquote inputs))))))
(define (pretty-uri uri version)
(if version
(match (factorize-uri uri version)
((items ...)
`(string-append ,@items))
(x x))
uri))
(let* ((source (find-attribute-by-name "src" attributes))
(urls (source-urls source))
(sha256 (source-sha256 source))
(meta (and=> (find-attribute-by-name "meta" attributes)
attribute-value)))
(values
`(package
(name ,name)
(version ,version)
(source (origin
(method url-fetch)
(uri ,(pretty-uri (car urls) version))
(sha256
(base32
,(bytevector->nix-base32-string sha256)))))
(build-system gnu-build-system)
;; When doing a native Nixpkgs build, `buildInputs' is empty and
;; everything is in `nativeBuildInputs'. So we can't distinguish
;; between both, here.
;;
;; Note that `nativeBuildInputs' was renamed from
;; `buildNativeInputs' in Nixpkgs sometime around March 2013.
,@(maybe-inputs 'inputs
(convert-inputs "nativeBuildInputs"))
,@(maybe-inputs 'propagated-inputs
(convert-inputs "propagatedNativeBuildInputs"))
(home-page ,(and=> (find-attribute-by-name "homepage" meta)
attribute-value))
(synopsis
;; For GNU packages, prefer the official synopsis.
,(or (false-if-exception
(and=> (find (lambda (gnu-package)
(equal? (gnu-package-name gnu-package)
name))
(official-gnu-packages))
gnu-package-doc-summary))
(and=> (find-attribute-by-name "description" meta)
attribute-value)))
(description
;; Likewise, prefer the official description of GNU packages.
,(or (false-if-exception
(and=> (find (lambda (gnu-package)
(equal? (gnu-package-name gnu-package)
name))
(official-gnu-packages))
gnu-package-doc-description))
(and=> (find-attribute-by-name "longDescription" meta)
attribute-value)))
(license ,(and=> (find-attribute-by-name "license" meta)
(compose license-variable attribute-value))))
loc))))))
(define (nixpkgs->guix-package nixpkgs attribute)
"Evaluate ATTRIBUTE in NIXPKGS, the file name of a Nixpkgs checkout,
and return the `package' s-expression corresponding to that package."
(let ((port (open-nixpkgs nixpkgs attribute)))
(match (xml->snix port)
(('snix loc (and drv ('derivation _ ...)))
(and (not (pipe-failed? port))
(snix-derivation->guix-package drv)))
(_
(not (pipe-failed? port))))))
;;; snix.scm ends here

4
guix/scripts/import.scm
View file

@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU ;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2020 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2012, 2013, 2014, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014 David Thompson <davet@gnu.org> ;;; Copyright © 2014 David Thompson <davet@gnu.org>
;;; Copyright © 2018 Kyle Meyer <kyle@kyleam.com> ;;; Copyright © 2018 Kyle Meyer <kyle@kyleam.com>
;;; Copyright © 2019 Ricardo Wurmus <rekado@elephly.net> ;;; Copyright © 2019 Ricardo Wurmus <rekado@elephly.net>
@ -76,7 +76,7 @@ (define %standard-import-options '())
;;; Entry point. ;;; Entry point.
;;; ;;;
(define importers '("gnu" "nix" "pypi" "cpan" "hackage" "stackage" "elpa" "gem" (define importers '("gnu" "pypi" "cpan" "hackage" "stackage" "elpa" "gem"
"go" "cran" "crate" "texlive" "json" "opam")) "go" "cran" "crate" "texlive" "json" "opam"))
(define (resolve-importer name) (define (resolve-importer name)

90
guix/scripts/import/nix.scm
View file

@ -1,90 +0,0 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2016 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2014 David Thompson <davet@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 nix)
#:use-module (guix ui)
#:use-module (guix utils)
#:use-module (guix scripts)
#:use-module (guix import snix)
#: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-nix))
;;;
;;; Command-line options.
;;;
(define %default-options
'())
(define (show-help)
(display (G_ "Usage: guix import nix NIXPKGS ATTRIBUTE
Import and convert the Nix expression ATTRIBUTE of NIXPKGS.\n"))
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-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 nix")))
%standard-import-options))
;;;
;;; Entry point.
;;;
(define (guix-import-nix . args)
(define (parse-options)
;; Return the alist of option values.
(args-fold* args %options
(lambda (opt name arg result)
(leave (G_ "~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
((nixpkgs attribute)
(let-values (((expr loc)
(nixpkgs->guix-package nixpkgs attribute)))
(format #t ";; converted from ~a:~a~%~%"
(location-file loc) (location-line loc))
expr))
(x
(leave (G_ "wrong number of arguments~%"))))))

73
tests/snix.scm
View file

@ -1,73 +0,0 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2015 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 (test-snix)
#:use-module (guix import snix)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-64)
#:use-module (ice-9 match))
(define %nixpkgs-directory
(getenv "NIXPKGS"))
(define factorize-uri
(@@ (guix import snix) factorize-uri))
(define-syntax-rule (every? proc lists ...)
(not (not (every proc lists ...))))
(test-begin "snix")
(test-assert "factorize-uri"
(every? (match-lambda
((uri version '-> expected)
(equal? (factorize-uri uri version)
expected)))
'(("http://example.com/foo.tgz" "1.0"
-> "http://example.com/foo.tgz")
("http://example.com/foo-2.8.tgz" "2.8"
-> ("http://example.com/foo-" version ".tgz"))
("http://example.com/2.8/foo-2.8.tgz" "2.8"
-> ("http://example.com/" version "/foo-" version ".tgz")))))
(test-skip (if (and %nixpkgs-directory
(file-exists? (string-append %nixpkgs-directory
"/default.nix")))
0
1))
(test-assert "nixpkgs->guix-package"
(match (nixpkgs->guix-package %nixpkgs-directory "guile")
(('package
('name "guile")
('version (? string?))
('source ('origin _ ...))
('build-system _)
('inputs ('quasiquote (inputs ...)))
('propagated-inputs ('quasiquote (pinputs ...)))
('home-page (? string?))
('synopsis (? string?))
('description (? string?))
('license (? symbol?)))
(and (member '("libffi" ,libffi) inputs)
(member '("gmp" ,gmp) pinputs)
#t))
(x
(pk 'fail x #f))))
(test-end "snix")