diff options
| -rw-r--r-- | Makefile.am | 1 | ||||
| -rw-r--r-- | doc/guix.texi | 50 | ||||
| -rw-r--r-- | guix/scripts/build.scm | 18 | ||||
| -rw-r--r-- | guix/scripts/import.scm | 2 | ||||
| -rw-r--r-- | guix/scripts/import/json.scm | 102 |
5 files changed, 171 insertions, 2 deletions
diff --git a/Makefile.am b/Makefile.am index e16f15acef..1f014b7c01 100644 --- a/Makefile.am +++ b/Makefile.am @@ -174,6 +174,7 @@ MODULES = \ guix/scripts/import/gnu.scm \ guix/scripts/import/nix.scm \ guix/scripts/import/hackage.scm \ + guix/scripts/import/json.scm \ guix/scripts/import/elpa.scm \ guix/scripts/import/texlive.scm \ guix/scripts/environment.scm \ diff --git a/doc/guix.texi b/doc/guix.texi index 5a32476bd3..dd0a46a638 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -5899,6 +5899,56 @@ CTAN while fetching the sources from the directory guix import texlive --archive=generic ifxetex @end example +@item json +@cindex JSON, import +Import package metadata from a local JSON file@footnote{This +functionality requires Guile-JSON to be installed. +@xref{Requirements}.}. Consider the following example package +definition in JSON format: + +@example +@{ + "name": "hello", + "version": "2.10", + "source": "mirror://gnu/hello/hello-2.10.tar.gz", + "build-system": "gnu", + "home-page": "https://www.gnu.org/software/hello/", + "synopsis": "Hello, GNU world: An example GNU package", + "description": "GNU Hello prints a greeting.", + "license": "GPL-3.0+", + "native-inputs": ["gcc@@6"] +@} +@end example + +The field names are the same as for the @code{<package>} record +(@xref{Defining Packages}). References to other packages are provided +as JSON lists of quoted package specification strings such as +@code{guile} or @code{guile@@2.0}. + +The importer also supports a more explicit source definition using the +common fields for @code{<origin>} records: + +@example +@{ + @dots{} + "source": @{ + "method": "url-fetch", + "uri": "mirror://gnu/hello/hello-2.10.tar.gz", + "sha256": @{ + "base32": "0ssi1wpaf7plaswqqjwigppsg5fyh99vdlb9kzl7c9lng89ndq1i" + @} + @} + @dots{} +@} +@end example + +The command below reads metadata from the JSON file @code{hello.json} +and outputs a package expression: + +@example +guix import json hello.json +@end example + @item nix Import metadata from a local copy of the source of the @uref{http://nixos.org/nixpkgs/, Nixpkgs distribution}@footnote{This diff --git a/guix/scripts/build.scm b/guix/scripts/build.scm index 0571b874f1..3cc679c70a 100644 --- a/guix/scripts/build.scm +++ b/guix/scripts/build.scm @@ -1,6 +1,7 @@ ;;; GNU Guix --- Functional package management for GNU ;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2013 Mark H Weaver <mhw@netris.org> +;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net> ;;; ;;; This file is part of GNU Guix. ;;; @@ -31,9 +32,11 @@ #:use-module (guix monads) #:use-module (guix gexp) + #:autoload (json) (json-string->scm) #:autoload (guix http-client) (http-fetch http-get-error?) #:use-module (ice-9 format) #:use-module (ice-9 match) + #:use-module (ice-9 rdelim) #:use-module (ice-9 vlist) #:use-module (srfi srfi-1) #:use-module (srfi srfi-11) @@ -55,6 +58,10 @@ register-root register-root*)) +;; Lazy reference to import utils to avoid cycle +(define (lazy-util sym) + (module-ref (resolve-interface '(guix import utils)) sym)) + (define %default-log-urls ;; Default base URLs for build logs. '("http://hydra.gnu.org/log")) @@ -606,7 +613,16 @@ build---packages, gexps, derivations, and so on." (else (list (specification->package spec))))) (('file . file) - (ensure-list (load* file (make-user-module '())))) + (if (string-suffix? ".json" file) + (begin + ;; Load (json) lazily to avoid hard dependency. + ;; TODO: doesn't work + (let* ((json (json-string->scm + (with-input-from-file file read-string))) + (pkg ((lazy-util 'data->guix-package) + ((lazy-util 'hash-table->alist) json)))) + (ensure-list pkg))) + (ensure-list (load* file (make-user-module '()))))) (('expression . str) (ensure-list (read/eval str))) (('argument . (? derivation? drv)) diff --git a/guix/scripts/import.scm b/guix/scripts/import.scm index 9bba074e8c..67bc7a7553 100644 --- a/guix/scripts/import.scm +++ b/guix/scripts/import.scm @@ -74,7 +74,7 @@ rather than \\n." ;;; (define importers '("gnu" "nix" "pypi" "cpan" "hackage" "stackage" "elpa" "gem" - "cran" "crate" "texlive")) + "cran" "crate" "texlive" "json")) (define (resolve-importer name) (let ((module (resolve-interface diff --git a/guix/scripts/import/json.scm b/guix/scripts/import/json.scm new file mode 100644 index 0000000000..8771e7b0eb --- /dev/null +++ b/guix/scripts/import/json.scm @@ -0,0 +1,102 @@ +;;; GNU Guix --- Functional package management for GNU +;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org> +;;; Copyright © 2015, 2017 Ricardo Wurmus <rekado@elephly.net> +;;; +;;; 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 json) + #:use-module (json) + #:use-module (guix ui) + #:use-module (guix utils) + #:use-module (guix scripts) + #:use-module (guix import utils) + #:use-module (guix import print) + #:use-module (guix scripts import) + #:use-module (guix packages) + #:use-module (srfi srfi-1) + #:use-module (srfi srfi-9 gnu) + #:use-module (srfi srfi-11) + #:use-module (srfi srfi-37) + #:use-module (srfi srfi-41) + #:use-module (ice-9 match) + #:use-module (ice-9 rdelim) + #:use-module (ice-9 format) + #:export (guix-import-json)) + + +;;; +;;; Command-line options. +;;; + +(define %default-options + '()) + +(define (show-help) + (display (G_ "Usage: guix import json PACKAGE-FILE +Import and convert the JSON package definition in PACKAGE-FILE.\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 json"))) + %standard-import-options)) + + +;;; +;;; Entry point. +;;; + +(define (guix-import-json . 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 + ((file-name) + (catch 'json-invalid + (lambda () + (let ((json (json-string->scm + (with-input-from-file file-name read-string)))) + ;; TODO: also print define-module boilerplate + (package->code (alist->package (hash-table->alist json))))) + (lambda _ + (leave (G_ "invalid JSON in file '~a'~%") file-name)))) + (() + (leave (G_ "too few arguments~%"))) + ((many ...) + (leave (G_ "too many arguments~%")))))) |