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;;; Guix Data Service -- Information about Guix over time
;;; Copyright © 2016, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
;;; 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 web controller)
#:use-module (ice-9 match)
#:use-module (ice-9 vlist)
#:use-module (ice-9 pretty-print)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
#:use-module (web request)
#:use-module (web uri)
#:use-module (squee)
#:use-module (guix-data-service comparison)
#:use-module (guix-data-service model guix-revision)
#:use-module (guix-data-service model package)
#:use-module (guix-data-service model package-derivation)
#:use-module (guix-data-service model package-metadata)
#:use-module (guix-data-service model derivation)
#:use-module (guix-data-service model build)
#:use-module (guix-data-service jobs load-new-guix-revision)
#:use-module (guix-data-service web render)
#:use-module (guix-data-service web util)
#:use-module (guix-data-service web view html)
#:export (controller))
(define-syntax-rule (-> target functions ...)
(fold (lambda (f val) (and=> val f))
target
(list functions ...)))
(define (render-with-error-handling page message)
(apply render-html (page))
;; (catch #t
;; (lambda ()
;; (receive (sxml headers)
;; (pretty-print (page))
;; (render-html sxml headers)))
;; (lambda (key . args)
;; (format #t "ERROR: ~a ~a\n"
;; key args)
;; (render-html (error-page message))))
)
(define (with-base-and-target-commits request conn f)
(let ((base-commit (-> request
request-uri
uri-query
parse-query-string
(cut assoc-ref <> "base_commit")))
(target-commit (-> request
request-uri
uri-query
parse-query-string
(cut assoc-ref <> "target_commit"))))
(f base-commit
(commit->revision-id conn base-commit)
target-commit
(commit->revision-id conn target-commit))))
(define (render-compare-unknown-commit content-type
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(cond
((eq? content-type 'json)
(render-json
'((unknown_commit . #t))))
(else
(apply render-html
(compare-unknown-commit base-commit
target-commit
(if base-revision-id #t #f)
(if target-revision-id #t #f)
(select-job-for-commit conn
base-commit)
(select-job-for-commit conn
target-commit))))))
(define (render-compare content-type
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(let-values
(((base-packages-vhash target-packages-vhash)
(package-data->package-data-vhashes
(package-differences-data conn
base-revision-id
target-revision-id))))
(let* ((new-packages
(package-data-vhashes->new-packages base-packages-vhash
target-packages-vhash))
(removed-packages
(package-data-vhashes->removed-packages base-packages-vhash
target-packages-vhash))
(version-changes
(package-data-version-changes base-packages-vhash
target-packages-vhash))
(derivation-changes
(package-data-derivation-changes base-packages-vhash
target-packages-vhash)))
(cond
((eq? content-type 'json)
(render-json
`((new-packages . ,(list->vector new-packages))
(removed-packages . ,(list->vector removed-packages))
(version-changes . ,version-changes)
(derivation-changes . ,derivation-changes))))
(else
(apply render-html
(compare base-commit
target-commit
new-packages
removed-packages
version-changes
derivation-changes)))))))
(define (render-compare/derivations content-type
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(define (derivations->alist derivations)
(map (match-lambda
((file-name buildstatus)
`((file_name . ,file-name)
(build_status . ,(if (string=? "")
"unknown"
buildstatus)))))
derivations))
(let-values
(((base-packages-vhash target-packages-vhash)
(package-data->package-data-vhashes
(package-differences-data conn
base-revision-id
target-revision-id))))
(let ((base-derivations
(package-data-vhash->derivations-and-build-status
conn
base-packages-vhash))
(target-derivations
(package-data-vhash->derivations-and-build-status
conn
target-packages-vhash)))
(cond
((eq? content-type 'json)
(render-json
`((base . ((commit . ,base-commit)
(derivations . ,(list->vector
(derivations->alist
base-derivations)))))
(target . ((commit . ,target-commit)
(derivations . ,(list->vector
(derivations->alist
target-derivations))))))))
(else
(apply render-html
(compare/derivations
base-commit
target-commit
base-derivations
target-derivations)))))))
(define (render-compare/packages content-type
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(define (package-data-vhash->json vh)
(delete-duplicates
(vhash-fold (lambda (name data result)
(cons `((name . ,name)
(version . ,(car data)))
result))
'()
vh)))
(let-values
(((base-packages-vhash target-packages-vhash)
(package-data->package-data-vhashes
(package-differences-data conn
base-revision-id
target-revision-id))))
(cond
((eq? content-type 'json)
(render-json
`((base
. ((commit . ,base-commit)
(packages . ,(list->vector
(package-data-vhash->json base-packages-vhash)))))
(target
. ((commit . ,target-commit)
(packages . ,(list->vector
(package-data-vhash->json target-packages-vhash))))))))
(else
(apply render-html
(compare/packages
base-commit
target-commit
base-packages-vhash
target-packages-vhash))))))
(define (render-derivation conn derivation-file-name)
(let ((derivation (select-derivation-by-file-name conn
derivation-file-name)))
(if derivation
(let ((derivation-inputs (select-derivation-inputs-by-derivation-id
conn
(first derivation)))
(derivation-outputs (select-derivation-outputs-by-derivation-id
conn
(first derivation)))
(builds (select-builds-with-context-by-derivation-id
conn
(first derivation))))
(apply render-html
(view-derivation derivation
derivation-inputs
derivation-outputs
builds)))
#f ;; TODO
)))
(define (render-store-item conn filename)
(let ((derivation (select-derivation-by-output-filename conn filename)))
(match derivation
(()
#f)
(derivations
(apply render-html
(view-store-item filename
derivations
(map (lambda (derivation)
(match derivation
((file-name output-id rest ...)
(select-derivations-using-output
conn output-id))))
derivations)))))))
(define (controller request body conn)
(match-lambda
((GET)
(apply render-html (index
(most-recent-n-guix-revisions conn 10)
(most-recent-n-load-new-guix-revision-jobs conn 1000))))
((GET "builds")
(apply render-html
(view-builds (select-build-stats conn)
(select-builds-with-context conn))))
((GET "revision" commit-hash)
(apply render-html
(view-revision commit-hash
(count-packages-in-revision conn
commit-hash)
(count-packages-derivations-in-revision conn
commit-hash))))
((GET "revision" commit-hash "packages")
(apply render-html
(view-revision-packages commit-hash
(select-packages-in-revision
conn commit-hash))))
((GET "revision" commit-hash "package" name version)
(apply render-html
(view-revision-package-and-version
commit-hash
name
version
(select-package-metadata-by-revision-name-and-version
conn
commit-hash
name
version)
(select-derivations-by-revision-name-and-version
conn
commit-hash
name
version))))
((GET "gnu" "store" filename)
(if (string-suffix? ".drv" filename)
(render-derivation conn (string-append "/gnu/store/" filename))
(render-store-item conn (string-append "/gnu/store/" filename))))
((GET "compare")
(with-base-and-target-commits
request conn
(lambda (base-commit base-revision-id target-commit target-revision-id)
(if (not (and base-revision-id target-revision-id))
(render-compare-unknown-commit 'html
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(render-compare 'html
conn
base-commit
base-revision-id
target-commit
target-revision-id)))))
((GET "compare.json")
(with-base-and-target-commits
request conn
(lambda (base-commit base-revision-id target-commit target-revision-id)
(if (not (and base-revision-id target-revision-id))
(render-compare-unknown-commit 'json
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(render-compare 'json
conn
base-commit
base-revision-id
target-commit
target-revision-id)))))
((GET "compare" "derivations")
(with-base-and-target-commits
request conn
(lambda (base-commit base-revision-id target-commit target-revision-id)
(if (not (and base-revision-id target-revision-id))
(render-compare-unknown-commit 'html
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(render-compare/derivations 'html
conn
base-commit
base-revision-id
target-commit
target-revision-id)))))
((GET "compare" "derivations.json")
(with-base-and-target-commits
request conn
(lambda (base-commit base-revision-id target-commit target-revision-id)
(if (not (and base-revision-id target-revision-id))
(render-compare-unknown-commit 'json
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(render-compare/derivations 'json
conn
base-commit
base-revision-id
target-commit
target-revision-id)))))
((GET "compare" "packages")
(with-base-and-target-commits
request conn
(lambda (base-commit base-revision-id target-commit target-revision-id)
(if (not (and base-revision-id target-revision-id))
(render-compare-unknown-commit 'html
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(render-compare/packages 'html
conn
base-commit
base-revision-id
target-commit
target-revision-id)))))
((GET "compare" "packages.json")
(with-base-and-target-commits
request conn
(lambda (base-commit base-revision-id target-commit target-revision-id)
(if (not (and base-revision-id target-revision-id))
(render-compare-unknown-commit 'json
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(render-compare/packages 'json
conn
base-commit
base-revision-id
target-commit
target-revision-id)))))
((GET path ...)
(render-static-asset request))))
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