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(define-module (guix-qa-frontpage guix-data-service)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (ice-9 match)
#:use-module (ice-9 exceptions)
#:use-module (web uri)
#:use-module (web client)
#:use-module (web response)
#:use-module (rnrs bytevectors)
#:use-module (zlib)
#:use-module (json)
#:use-module ((guix-build-coordinator utils) #:select (retry-on-error))
#:use-module (guix-qa-frontpage patchwork)
#:use-module (guix-qa-frontpage manage-patch-branches)
#:export (&guix-data-service-error
guix-data-service-error?
guix-data-service-error-response-body
guix-data-service-error-response-code
revision-derivation-changes-url
revision-derivation-changes
revision-comparison-url
revision-comparison
list-branches-url
list-branches
get-latest-processed-branch-revision
branch-revisions-url
branch-revisions
revision-details
revision-details-url
revision-system-tests-url
revision-system-tests
package-substitute-availability-url
package-substitute-availability))
(define-exception-type &guix-data-service-error &error
make-guix-data-service-error
guix-data-service-error?
(response-body guix-data-service-error-response-body)
(response-code guix-data-service-error-response-code))
(define* (guix-data-service-request url #:key (retry-times 1) (retry-delay 5))
(retry-on-error
(lambda ()
(let-values (((response body)
(http-get (string->uri url)
#:headers
'((accept-encoding . ((1 . "gzip"))))
#:streaming? #t)))
(if (eq? (response-code response)
404)
#f
(let ((json-body
(with-exception-handler
(lambda _ #f)
(lambda ()
(match (response-content-encoding response)
(('gzip)
(call-with-zlib-input-port
body
json->scm
#:format 'gzip))
(_
(json->scm body))))
#:unwind? #t)))
(if (or (> (response-code response)
400)
(not json-body)
(assoc-ref json-body "error"))
(raise-exception
(make-guix-data-service-error json-body
(response-code response)))
(values json-body
response))))))
#:times retry-times
#:delay retry-delay
#:ignore (lambda (exn)
(and (guix-data-service-error? exn)
(< (guix-data-service-error-response-code exn)
500)))))
(define* (revision-derivation-changes-url base-and-target-refs #:key systems)
(string-append
"https://data.qa.guix.gnu.org/compare/package-derivations.json?"
"base_commit=" (assq-ref base-and-target-refs 'base)
"&target_commit=" (assq-ref base-and-target-refs 'target)
(string-join
(map (lambda (system)
(simple-format #f "&system=~A" system))
(or systems '()))
"")
"&target=none"
"&field=builds&limit_results=&all_results=on"))
(define (revision-derivation-changes url)
(let ((json-body
(guix-data-service-request url)))
(if json-body
(values (vector->list
(assoc-ref json-body
"derivation_changes"))
(alist-delete "derivation_changes"
json-body))
(values #f #f))))
(define* (revision-comparison-url base-and-target-refs #:key (json? #t))
(string-append
"https://data.qa.guix.gnu.org/compare"
(if json? ".json" "")
"?"
"base_commit=" (assq-ref base-and-target-refs 'base)
"&target_commit=" (assq-ref base-and-target-refs 'target)))
(define (revision-comparison url)
(guix-data-service-request url))
(define (list-branches-url repository-id)
(simple-format #f "https://data.qa.guix.gnu.org/repository/~A.json"
repository-id))
(define (list-branches url)
(let ((json-body
(guix-data-service-request url)))
(vector->list
(assoc-ref json-body "branches"))))
(define (get-latest-processed-branch-revision branch)
(let ((json-body
(guix-data-service-request
(string-append
"https://data.qa.guix.gnu.org"
"/repository/2"
"/branch/" branch
"/latest-processed-revision.json"))))
(assoc-ref
(assoc-ref json-body "revision")
"commit")))
(define (branch-revisions-url repository-id branch-name)
(simple-format
#f
"https://data.qa.guix.gnu.org/repository/~A/branch/~A.json"
repository-id
branch-name))
(define (branch-revisions url)
(let ((json-body
(guix-data-service-request url)))
(vector->list
(assoc-ref json-body "revisions"))))
(define* (revision-details-url commit)
(simple-format
#f
"https://data.qa.guix.gnu.org/revision/~A.json"
commit))
(define (revision-details url)
(guix-data-service-request url))
(define* (revision-system-tests-url commit #:key (system "x86_64-linux"))
(simple-format
#f
"https://data.qa.guix.gnu.org/revision/~A/system-tests.json?system=~A"
commit
system))
(define (revision-system-tests url)
(let ((json-body
(guix-data-service-request url)))
(vector->list
(assoc-ref json-body "system_tests"))))
(define* (package-substitute-availability-url commit)
(simple-format
#f
"https://data.qa.guix.gnu.org/revision/~A/package-substitute-availability.json"
commit))
(define (package-substitute-availability url)
(let ((json-body
(guix-data-service-request url)))
(if json-body
(assoc-ref json-body "substitute_servers")
#f)))
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