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;;; Guix Data Service -- Information about Guix over time
;;; Copyright © 2019, 2020 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 substitutes)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-19)
#:use-module (ice-9 match)
#:use-module (ice-9 threads)
#:use-module (guix substitutes)
#:use-module (guix narinfo)
#:use-module (guix-data-service database)
#:use-module (guix-data-service model build-server)
#:use-module (guix-data-service model git-branch)
#:use-module (guix-data-service model git-repository)
#:use-module (guix-data-service model nar)
#:export (query-build-server-substitutes
start-substitute-query-thread))
(define verbose-output?
(make-parameter #f))
(define* (query-build-server-substitutes conn build-server-ids revision-commits
outputs
#:key verbose?)
(parameterize
((verbose-output? verbose?))
(let ((build-servers (select-build-servers conn)))
(for-each
(match-lambda
((id url lookup-all-derivations? lookup-builds?)
(when (or (or (not build-servers)
(not build-server-ids))
(member id build-server-ids))
(when lookup-all-derivations?
(simple-format #t "\nQuerying ~A\n" url)
(catch #t
(lambda ()
(simple-format #t "\nFetching narinfo files\n")
(fetch-narinfo-files conn id url revision-commits
#:specific-outputs
outputs))
(lambda (key . args)
(simple-format
(current-error-port)
"exception in query-build-server: ~A ~A\n"
key args)))))))
build-servers))))
(define %narinfo-max-size
(- (expt 2 (- (* 8 8) ;; 8 bytes
1))
1))
(define* (fetch-narinfo-files conn build-server-id build-server-url
revision-commits
#:key specific-outputs)
(define outputs
(or specific-outputs
(select-outputs-without-known-nar-entries
conn
build-server-id
revision-commits
#:build-success-after
(if (null? revision-commits)
(time-utc->date
(subtract-duration (current-time)
(make-time time-duration 0 (* 60 5)))
0) ; tz-offset
#f))))
(simple-format #t "Querying ~A outputs\n"
(length outputs))
(let ((narinfos
(lookup-narinfos (string-trim-right build-server-url #\/) outputs)))
(simple-format #t "Got ~A narinfo files\n"
(length narinfos))
(let ((filtered-narinfos
(filter-map
(lambda (narinfo)
(if (> (narinfo-size narinfo)
%narinfo-max-size)
(begin
(simple-format (current-error-port)
"narinfo ~A has excessive size ~A\n"
(narinfo-path narinfo)
(narinfo-size narinfo))
#f)
narinfo))
narinfos)))
(unless (null? filtered-narinfos)
(with-postgresql-transaction
conn
(lambda (conn)
(record-narinfo-details-and-return-ids
conn
build-server-id
filtered-narinfos)))))))
(define (start-substitute-query-thread)
(call-with-new-thread
(lambda ()
(while #t
(with-exception-handler
(lambda (exn)
(simple-format (current-error-port)
"exception when querying substitutes: ~A\n"
exn))
(lambda ()
(with-postgresql-connection
"substitute-query-thread"
(lambda (conn)
(for-each
(match-lambda
((git-repository-id rest ...)
(for-each
(match-lambda
((branch-name rest ...)
(and=> (latest-processed-commit-for-branch
conn
(number->string git-repository-id)
branch-name)
(lambda (commit)
(query-build-server-substitutes
conn
#f ;; All build servers
(list commit)
#f)))))
(all-branches-with-most-recent-commit
conn
git-repository-id))))
(all-git-repositories conn))))
(simple-format #t "finished checking substitutes, now sleeping\n")
(sleep (* 60 30)))
#:unwind? #t)))))
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