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;;; Guix Data Service -- Information about Guix over time
;;; 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 model guix-revision-package-derivation)
#:use-module (ice-9 match)
#:use-module (ice-9 threads)
#:use-module (squee)
#:use-module (guix-data-service database)
#:export (insert-guix-revision-package-derivations
insert-guix-revision-package-derivation-distribution-counts
backfill-guix-revision-package-derivation-distribution-counts
get-sql-to-select-package-and-related-derivations-for-revision))
(define (insert-guix-revision-package-derivations
conn guix-revision-id package-derivation-ids)
(define insert
(string-append "INSERT INTO guix_revision_package_derivations "
"(revision_id, package_derivation_id) "
"VALUES "
(string-join (map (lambda (package-derivation-id)
(simple-format
#f "(~A, ~A)"
guix-revision-id
package-derivation-id))
package-derivation-ids)
", ")
";"))
(exec-query conn insert))
(define (insert-guix-revision-package-derivation-distribution-counts
conn
guix-revision-id)
(define system-ids-and-targets
(exec-query
conn
"
SELECT DISTINCT system_id, target
FROM package_derivations
INNER JOIN guix_revision_package_derivations
ON package_derivations.id = guix_revision_package_derivations.package_derivation_id
WHERE revision_id = $1"
(list guix-revision-id)))
(define (get-count-for-next-level system-id target level-counts)
(define next-level
(length level-counts))
(define query
(string-append
(simple-format
#f
"
WITH l0 AS (
SELECT derivation_id
FROM package_derivations
INNER JOIN guix_revision_package_derivations
ON package_derivations.id
= guix_revision_package_derivations.package_derivation_id
WHERE revision_id = ~A
AND system_id = ~A
AND target = $STR$~A$STR$~A
)"
guix-revision-id
system-id
target
(if (= next-level 0)
""
(simple-format
#f
"
LIMIT ~A"
(car level-counts))))
(if (= next-level 0)
""
(string-join
(map
(match-lambda*
((level count)
(simple-format
#f
", l~A AS (
(
SELECT derivation_outputs.derivation_id
FROM derivation_outputs WHERE derivation_outputs.id IN (
SELECT DISTINCT derivation_inputs.derivation_output_id
FROM l~A
INNER JOIN derivation_inputs
ON l~A.derivation_id = derivation_inputs.derivation_id
)
) EXCEPT (~A
)~A
)"
level
(- level 1)
(- level 1)
(string-join
(map
(lambda (level)
(simple-format
#f
" SELECT derivation_id FROM l~A"
level))
(iota level))
"
UNION ALL")
(if count
(simple-format
#f
"
LIMIT ~A"
count)
""))))
(iota (length level-counts) 1)
(append (cdr level-counts) '(#f)))
""))
(simple-format
#f
"
SELECT COUNT(*) FROM l~A"
(length level-counts))))
(string->number
(caar
(exec-query
conn
query))))
(define (insert-level-count system-id target level count)
(exec-query
conn
"
INSERT INTO guix_revision_package_derivation_distribution_counts
VALUES ($1, $2, $3, $4, $5)"
(list guix-revision-id
system-id
target
(number->string level)
(number->string count))))
(for-each
(match-lambda
((system-id target)
(let loop ((level-counts '()))
(let ((level (length level-counts))
(count (get-count-for-next-level system-id target level-counts)))
(unless (= count 0)
(insert-level-count system-id target level count)
(loop (append level-counts (list count))))))))
system-ids-and-targets))
(define (backfill-guix-revision-package-derivation-distribution-counts conn)
(define revision-ids
(map
car
(exec-query
conn
"
SELECT id
FROM guix_revisions
EXCEPT
SELECT guix_revision_id
FROM guix_revision_package_derivation_distribution_counts
ORDER BY id DESC")))
(for-each
(lambda (revision-id)
(simple-format #t "backfilling guix_revision_package_derivation_distribution_counts for revision ~A\n" revision-id)
(with-postgresql-transaction
conn
(lambda (conn)
(insert-guix-revision-package-derivation-distribution-counts
conn
revision-id))))
revision-ids))
(define* (get-sql-to-select-package-and-related-derivations-for-revision
conn
guix-revision-id
#:key system-id target)
(define level-counts
(map
(match-lambda
((level count)
(list
(string->number level)
(string->number count))))
(exec-query
conn
"
SELECT level, distinct_derivations
FROM guix_revision_package_derivation_distribution_counts
WHERE guix_revision_id = $1
AND system_id = $2
AND target = $3
ORDER BY level ASC"
(list guix-revision-id
(number->string system-id)
target))))
(define (query level-counts)
(string-append
(simple-format
#f
"
WITH l0 AS (
SELECT derivation_id
FROM package_derivations
INNER JOIN guix_revision_package_derivations
ON package_derivations.id
= guix_revision_package_derivations.package_derivation_id
WHERE revision_id = ~A
AND system_id = ~A
AND target = $STR$~A$STR$
LIMIT ~A
)"
guix-revision-id
system-id
target
(cdr (car level-counts)))
(string-join
(map
(match-lambda*
((level count)
(simple-format
#f
", l~A AS (
(
SELECT derivation_outputs.derivation_id
FROM derivation_outputs WHERE derivation_outputs.id IN (
SELECT DISTINCT derivation_inputs.derivation_output_id
FROM l~A
INNER JOIN derivation_inputs
ON l~A.derivation_id = derivation_inputs.derivation_id
)
) EXCEPT (~A
)~A
)"
level
(- level 1)
(- level 1)
(string-join
(map
(lambda (level)
(simple-format
#f
" SELECT derivation_id FROM l~A"
level))
(iota level))
"
UNION ALL")
(simple-format
#f
"
LIMIT ~A"
count))))
(iota (- (length level-counts) 1) 1)
(cdr (map cdr level-counts)))
"")
", all_derivations AS (
SELECT *
FROM l0"
(string-join
(map (lambda (level)
(simple-format #f " UNION (SELECT * FROM l~A)" level))
(iota (- (length level-counts) 1) 1))
"\n")
"
)"))
(if level-counts
(query level-counts)
#f))
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