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#!@GUILE@ --no-auto-compile
-*- scheme -*-
-*- geiser-scheme-implementation: guile -*-
!#
;;; Guix Build Coordinator
;;;
;;; Copyright © 2020 Christopher Baines <mail@cbaines.net>
;;;
;;; This file is part of the guix-build-coordinator.
;;;
;;; guix-data-service 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.
;;;
;;; guix-data-service 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 the guix-data-service. If not, see
;;; <http://www.gnu.org/licenses/>.
(use-modules (srfi srfi-1)
(srfi srfi-11)
(ice-9 match)
(ice-9 textual-ports)
(rnrs bytevectors)
(json)
(web uri)
(web client)
(guix-build-coordinator utils)
(guix-build-coordinator client-communication))
(define %guix-data-service-host "data.guix.gnu.org")
(define %processed-commits-file "processed-revisions")
;; This gets populated from a file on startup
(define processed-commits-hash
(make-hash-table 1024))
(when (file-exists? %processed-commits-file)
(call-with-input-file %processed-commits-file
(lambda (port)
(let ((commits
(string-split (get-string-all port) #\newline)))
(for-each (lambda (commit)
(unless (string-null? commit)
(simple-format #t "marking ~A as already processed\n"
commit)
(hash-set! processed-commits-hash
commit
#t)))
commits)))))
(define processed-derivations-hash
(make-hash-table 102400))
(define* (guix-data-service-request path #:optional (query-parameters '()))
(define uri
(string->uri (string-append
"https://"
%guix-data-service-host
path
(if (null? query-parameters)
""
(string-append
"?"
(string-join
(map (match-lambda
((key . value)
(simple-format #f "~A=~A" key value)))
query-parameters)
"&"))))))
(let-values (((response body) (http-get uri)))
(json-string->scm (utf8->string body))))
(define (unseen-revisions)
(let ((data (guix-data-service-request "/repository/1/branch/master.json")))
(filter-map (lambda (entry)
(let ((commit (assoc-ref entry "commit-hash")))
(and (not (hash-ref processed-commits-hash
commit))
(assoc-ref entry "data_available")
commit)))
(vector->list
(assoc-ref data "revisions")))))
(define (record-revision-as-processed commit)
(let ((port (open-file "processed-revisions" "a")))
(simple-format port "~A\n" commit)
(close-port port))
(hash-set! processed-commits-hash commit #t))
(define (channel-instance-derivations-for-commit commit system)
(let ((data (guix-data-service-request
(string-append "/revision/" commit "/channel-instances.json"))))
(filter-map (lambda (entry)
(if (string=? system
(assoc-ref entry "system"))
(assoc-ref entry "derivation")
#f))
(vector->list
(assoc-ref data "channel_instances")))))
(define (package-derivations-for-commit commit)
(let ((data (guix-data-service-request
(string-append "/revision/" commit "/package-derivations.json")
'((system . "x86_64-linux")
(target . "none")
(field . "(no-additional-fields)")
(all_results . "on")))))
(map (lambda (entry)
(assoc-ref entry "derivation"))
(vector->list
(assoc-ref data "derivations")))))
(define (record-derivations-as-processed derivations)
(for-each (lambda (derivation)
(hash-set! processed-derivations-hash
derivation
#t))
derivations))
(define* (submit-build derivation #:key (priority 0))
(retry-on-error
(lambda ()
(let ((response
(send-submit-build-request
"http://127.0.0.1:8746"
derivation
(list
(string-append "https://" %guix-data-service-host))
#f
priority
#t
#t
#t
'())))
(let ((no-build-submitted-response
(assoc-ref response "no-build-submitted")))
(if no-build-submitted-response
(simple-format #t "skipped: ~A\n"
no-build-submitted-response)
(simple-format #t "build submitted as ~A\n"
(assoc-ref response "build-submitted"))))))
#:times 6
#:delay 10))
(define (submit-builds-for-revision commit)
(simple-format #t "looking at revision ~A\n" commit)
(for-each (lambda (derivation)
(submit-build derivation #:priority 1000))
(channel-instance-derivations-for-commit commit "x86_64-linux"))
(let ((unprocessed-package-derivations
(filter (lambda (derivation)
(not (hash-ref processed-derivations-hash derivation)))
(package-derivations-for-commit commit))))
(for-each submit-build unprocessed-package-derivations)
(record-derivations-as-processed unprocessed-package-derivations)))
(define (main)
(while #t
(for-each (lambda (commit)
(submit-builds-for-revision commit)
(record-revision-as-processed commit))
(unseen-revisions))
(sleep 3600)))
(main)
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