guix-data-service/guix-data-service/model/lint-warning-message.scm
Christopher Baines 5ed98343d7 Rework loading revision data
These changes were motivated by switching to a mechanism of loading data that
isn't dependent on the big advisory lock that prevents more than one revision
from being processed at a time.

Since INSERT ... RETURNING id; is used, this can block if another transaction
inserts the same data, and then cause an error when that transaction
commits. The solution is to use ON CONFLICT DO NOTHING, but you have to handle
the case when the INSERT doesn't return an id since the other transaction has
inserted it.

This commit rewrites insert-missing-data-and-return-all-ids to do as described
above, as well as being more efficient in how existing data is detected and to
use more vectors. Other utilities for inserting data are added as well.
2024-12-09 10:53:06 +00:00

68 lines
2.6 KiB
Scheme

;;; 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 model lint-warning-message)
#:use-module (srfi srfi-43)
#:use-module (ice-9 match)
#:use-module (squee)
#:use-module (guix-data-service database)
#:use-module (guix-data-service model utils)
#:export (lint-warning-message-data->lint-warning-message-ids
lint-warning-message-locales-for-revision
lint-warning-message-data->lint-warning-message-set-id))
(define (lint-warning-message-data->lint-warning-message-ids conn
messages-by-locale)
(insert-missing-data-and-return-all-ids
conn
"lint_warning_messages"
'(locale message)
(let ((v (list->vector messages-by-locale)))
(vector-map! (lambda (_ data)
(match data
((locale . message)
(list locale message))))
v)
v)))
(define (lint-warning-message-data->lint-warning-message-set-id
conn
messages-by-locale)
(insert-and-return-id
conn
"lint_warning_message_sets"
'(message_ids)
(list (lint-warning-message-data->lint-warning-message-ids
conn
messages-by-locale))))
(define (lint-warning-message-locales-for-revision conn commit-hash)
(exec-query
conn
"
SELECT DISTINCT lint_warning_messages.locale
FROM lint_warning_messages
INNER JOIN lint_warning_message_sets
ON lint_warning_messages.id = ANY (lint_warning_message_sets.message_ids)
INNER JOIN lint_warnings
ON lint_warning_message_sets.id = lint_warnings.lint_warning_message_set_id
INNER JOIN guix_revision_lint_warnings
ON lint_warnings.id = guix_revision_lint_warnings.lint_warning_id
INNER JOIN guix_revisions
ON guix_revision_lint_warnings.guix_revision_id = guix_revisions.id
AND guix_revisions.commit = $1"
(list commit-hash)))