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Render nar files for derivations

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In the same manor that Guix publish does. This is working towards being able
to serve substitutes for derivations.
This commit is contained in:
Christopher Baines 2019-12-26 09:25:27 +00:00
parent 43013fc16b
commit f78e3126e5
3 changed files with 73 additions and 0 deletions
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1
Makefile.am
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@ -104,6 +104,7 @@ SOURCES = \
guix-data-service/web/build-server/html.scm \
guix-data-service/web/jobs/controller.scm \
guix-data-service/web/jobs/html.scm \
guix-data-service/web/nar/controller.scm \
guix-data-service/web/query-parameters.scm \
guix-data-service/web/render.scm \
guix-data-service/web/repository/controller.scm \

2
guix-data-service/web/controller.scm
View file

@ -55,6 +55,7 @@
#:use-module (guix-data-service web util)
#:use-module (guix-data-service web build controller)
#:use-module (guix-data-service web revision controller)
#:use-module (guix-data-service web nar controller)
#:use-module (guix-data-service web jobs controller)
#:use-module (guix-data-service web view html)
#:use-module (guix-data-service web build-server controller)
@ -321,6 +322,7 @@
(render-narinfos conn filename))
(((or 'GET 'POST) "build-server" _ ...)
(delegate-to-with-secret-key-base build-server-controller))
(('GET "nar" _ ...) (delegate-to nar-controller))
(('GET "compare" _ ...) (delegate-to compare-controller))
(('GET "compare-by-datetime" _ ...) (delegate-to compare-controller))
(('GET "jobs") (delegate-to jobs-controller))

70
guix-data-service/web/nar/controller.scm Normal file
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@ -0,0 +1,70 @@
;;; Guix Data Service -- Information about Guix over time
;;; Copyright © 2019 Christopher Baines <mail@cbaines.net>
;;;
;;; This program is free software: you can redistribute it and/or
;;; modify it under the terms of the GNU Affero General Public License
;;; as published by the Free Software Foundation, either version 3 of
;;; the License, or (at your option) any later version.
;;;
;;; This program 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
;;; Affero General Public License for more details.
;;;
;;; You should have received a copy of the GNU Affero General Public
;;; License along with this program. If not, see
;;; <http://www.gnu.org/licenses/>.
(define-module (guix-data-service web nar controller)
#:use-module (ice-9 iconv)
#:use-module (ice-9 match)
#:use-module (ice-9 binary-ports)
#:use-module (rnrs bytevectors)
#:use-module (web request)
#:use-module (web response)
#:use-module (guix serialization)
#:use-module (guix-data-service web render)
#:use-module (guix-data-service model derivation)
#:export (nar-controller))
(define (nar-controller request
method-and-path-components
mime-types
body
conn)
(match method-and-path-components
(('GET "nar" derivation)
(render-nar request
mime-types
conn
(string-append "/gnu/store/" derivation)))
(_ #f)))
(define (render-nar request
mime-types
conn
derivation-file-name)
(let ((derivation-text
(select-serialized-derivation-by-file-name
conn
derivation-file-name)))
(if derivation-text
(let ((derivation-bytevector
(string->bytevector derivation-text
"ISO-8859-1")))
(list (build-response
#:code 200
#:headers '((content-type . (application/x-nix-archive
(charset . "ISO-8859-1")))))
(lambda (port)
(write-file-tree
derivation-file-name
port
#:file-type+size
(lambda (file)
(values 'regular
(bytevector-length derivation-bytevector)))
#:file-port
(lambda (file)
(open-bytevector-input-port derivation-bytevector))))))
(not-found (request-uri request)))))