From fb1db385476bc4548d3eadea93b5dd6a346839f2 Mon Sep 17 00:00:00 2001 From: Ricardo Wurmus Date: Sun, 27 Aug 2017 17:41:18 +0200 Subject: import: Add JSON importer. * doc/guix.texi (Invoking guix import): Document it. * guix/scripts/import/json.scm: New file. * Makefile.am (MODULES): Add it. * guix/scripts/import.scm (importers): Add json importer. --- guix/scripts/build.scm | 18 +++++++- guix/scripts/import.scm | 2 +- guix/scripts/import/json.scm | 102 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 120 insertions(+), 2 deletions(-) create mode 100644 guix/scripts/import/json.scm (limited to 'guix') 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 ;;; Copyright © 2013 Mark H Weaver +;;; Copyright © 2017 Ricardo Wurmus ;;; ;;; 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 +;;; Copyright © 2015, 2017 Ricardo Wurmus +;;; +;;; 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 . + +(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~%")))))) -- cgit v1.2.3