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scripts: publish: Add a custom baking header.

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Log the not-found responses and their reason (baking or not) to stdout. Also
send the X-Baking custom header so that the client can be informed of the
cause of the failure.

* guix/scripts/publish.scm (not-found): Add a baking? argument to add the
X-Baking HTTP header to the response if baking is in progress.  Also, log the
404 responses to stdout, indicating if it is due to baking or not.
(render-narinfo/cached): Pass the baking? argument.
This commit is contained in:
Mathieu Othacehe 2022-12-28 15:12:46 +01:00
parent 7c01abeb6e
commit 62f9f34525
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1 changed files with 20 additions and 5 deletions
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guix/scripts/publish.scm
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@ -4,7 +4,7 @@
;;; Copyright © 2015-2022 Ludovic Courtès <ludo@gnu.org> ;;; Copyright © 2015-2022 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com> ;;; Copyright © 2020 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2021 Simon Tournier <zimon.toutoune@gmail.com> ;;; Copyright © 2021 Simon Tournier <zimon.toutoune@gmail.com>
;;; Copyright © 2021 Mathieu Othacehe <othacehe@gnu.org> ;;; Copyright © 2021, 2022 Mathieu Othacehe <othacehe@gnu.org>
;;; ;;;
;;; This file is part of GNU Guix. ;;; This file is part of GNU Guix.
;;; ;;;
@ -375,14 +375,28 @@ (define* (narinfo-string store store-path
compression))) compression)))
compressions)))) compressions))))
;; Custom header to indicate that baking is in progress.
(declare-opaque-header! "X-Baking")
(define* (not-found request (define* (not-found request
#:key (phrase "Resource not found") #:key
baking?
(phrase "Resource not found")
ttl) ttl)
"Render 404 response for REQUEST." "Render 404 response for REQUEST."
(format #t "-> ~a ~a: 404~a~%"
(request-method request)
(uri-path (request-uri request))
(if baking? " (baking)" ""))
(values (build-response #:code 404 (values (build-response #:code 404
#:headers (if ttl #:headers
`((cache-control (max-age . ,ttl))) (append
'())) (if ttl
`((cache-control (max-age . ,ttl)))
'())
(if baking?
'((x-baking . "1"))
'())))
(string-append phrase ": " (string-append phrase ": "
(uri-path (request-uri request))))) (uri-path (request-uri request)))))
@ -587,6 +601,7 @@ (define (delete-entry narinfo)
#:nar-path nar-path #:nar-path nar-path
#:compressions compressions) #:compressions compressions)
(not-found request (not-found request
#:baking? #t
#:phrase "We're baking it" #:phrase "We're baking it"
#:ttl 300))) ;should be available within 5m #:ttl 300))) ;should be available within 5m
(else (else