81c3dc3224
Guile-JSON 3.x is incompatible with Guile-JSON 1.x, which we relied on until now: it maps JSON dictionaries to alists (instead of hash tables), and JSON arrays to vectors (instead of lists). This commit is about adjusting all the existing code to this new mapping. * m4/guix.m4 (GUIX_CHECK_GUILE_JSON): New macro. * configure.ac: Use it. * doc/guix.texi (Requirements): Mention the Guile-JSON version. * guix/git-download.scm (git-fetch)[guile-json]: Use GUILE-JSON-3. * guix/import/cpan.scm (string->license): Expect vectors instead of lists. (module->dist-name): Use 'json-fetch' instead of 'json-fetch-alist'. (cpan-fetch): Likewise. * guix/import/crate.scm (crate-fetch): Likewise, and call 'vector->list' for DEPS. * guix/import/gem.scm (rubygems-fetch): Likewise. * guix/import/json.scm (json-fetch-alist): Remove. * guix/import/pypi.scm (pypi-fetch): Use 'json-fetch' instead of 'json-fetch-alist'. (latest-source-release, latest-wheel-release): Call 'vector->list' on RELEASES. * guix/import/stackage.scm (stackage-lts-info-fetch): Use 'json-fetch' instead of 'json-fetch-alist'. (lts-package-version): Use 'vector->list'. * guix/import/utils.scm (hash-table->alist): Remove. (alist->package): Pass 'vector->list' on the inputs fields, and default to the empty vector. * guix/scripts/import/json.scm (guix-import-json): Remove call to 'hash-table->alist'. * guix/swh.scm (define-json-reader): Expect pair? or null? instead of hash-table?. [extract-field]: Use 'assoc-ref' instead of 'hash-ref'. (json->branches): Use 'map' instead of 'hash-map->list'. (json->checksums): Likewise. (json->directory-entries, origin-visits): Call 'vector->list' on the result of 'json->scm'. * tests/import-utils.scm ("alist->package with dependencies"): New test. * gnu/installer.scm (build-compiled-file)[builder]: Use GUILE-JSON-3. * gnu/installer.scm (installer-program)[installer-builder]: Likewise. * gnu/installer/locale.scm (iso639->iso639-languages): Use 'assoc-ref' instead of 'hash-ref', and pass vectors through 'vector->list'. (iso3166->iso3166-territories): Likewise. * gnu/system/vm.scm (system-docker-image)[build]: Use GUILE-JSON-3. * guix/docker.scm (manifest, config): Adjust for Guile-JSON 3. * guix/scripts/pack.scm (docker-image)[build]: Use GUILE-JSON-3. * guix/import/github.scm (fetch-releases-or-tags): Update docstring. (latest-released-version): Use 'assoc-ref' instead of 'hash-ref'. Pass the result of 'fetch-releases-or-tags' to 'vector->list'. * guix/import/launchpad.scm (latest-released-version): Likewise.
45 lines
1.8 KiB
Scheme
45 lines
1.8 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2014 David Thompson <davet@gnu.org>
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;;; Copyright © 2015, 2016 Eric Bavier <bavier@member.fsf.org>
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;;; Copyright © 2018, 2019 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 import json)
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#:use-module (json)
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#:use-module (guix http-client)
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#:use-module (guix import utils)
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#:use-module (srfi srfi-34)
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#:export (json-fetch))
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(define* (json-fetch url
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;; Note: many websites returns 403 if we omit a
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;; 'User-Agent' header.
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#:key (headers `((user-agent . "GNU Guile")
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(Accept . "application/json"))))
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"Return a representation of the JSON resource URL (a list or hash table), or
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#f if URL returns 403 or 404. HEADERS is a list of HTTP headers to pass in
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the query."
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(guard (c ((and (http-get-error? c)
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(let ((error (http-get-error-code c)))
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(or (= 403 error)
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(= 404 error))))
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#f))
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(let* ((port (http-fetch url #:headers headers))
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(result (json->scm port)))
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(close-port port)
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result)))
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