675 lines
27 KiB
Scheme
675 lines
27 KiB
Scheme
;;; database.scm -- store evaluation and build results
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;;; Copyright © 2016, 2017 Mathieu Lirzin <mthl@gnu.org>
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;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
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;;; Copyright © 2018 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2018 Clément Lassieur <clement@lassieur.org>
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;;; Copyright © 2018 Tatiana Sholokhova <tanja201396@gmail.com>
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;;;
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;;; This file is part of Cuirass.
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;;;
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;;; Cuirass is free software: you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation, either version 3 of the License, or
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;;; (at your option) any later version.
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;;;
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;;; Cuirass is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with Cuirass. If not, see <http://www.gnu.org/licenses/>.
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(define-module (cuirass database)
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#:use-module (cuirass config)
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#:use-module (cuirass utils)
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#:use-module (ice-9 match)
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#:use-module (ice-9 format)
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#:use-module (ice-9 ftw)
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#:use-module (ice-9 rdelim)
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#:use-module (ice-9 regex)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-19)
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#:use-module (srfi srfi-26)
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#:use-module (sqlite3)
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#:export (;; Procedures.
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db-init
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db-open
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db-close
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db-add-specification
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db-get-specifications
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db-add-stamp
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db-get-stamp
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db-add-evaluation
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db-get-pending-derivations
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build-status
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db-add-build
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db-update-build-status!
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db-get-build
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db-get-builds
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db-get-builds-min
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db-get-builds-max
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db-get-evaluations
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db-get-evaluations-build-summary
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db-get-evaluations-id-min
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db-get-evaluations-id-max
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read-sql-file
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read-quoted-string
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sqlite-exec
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;; Parameters.
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%package-database
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%package-schema-file
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%db-channel
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;; Macros.
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with-db-critical-section
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with-database))
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(define (%sqlite-exec db sql . args)
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"Evaluate the given SQL query with the given ARGS. Return the list of
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rows."
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(define (normalize arg)
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;; Turn ARG into a string, unless it's a primitive SQL datatype.
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(if (or (null? arg) (pair? arg) (vector? arg))
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(object->string arg)
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arg))
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(let ((stmt (sqlite-prepare db sql #:cache? #t)))
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(for-each (lambda (arg index)
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(sqlite-bind stmt index (normalize arg)))
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args (iota (length args) 1))
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(let ((result (sqlite-fold-right cons '() stmt)))
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(sqlite-finalize stmt)
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result)))
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(define-syntax sqlite-exec/bind
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(lambda (s)
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;; Expand to an '%sqlite-exec' call where the query string has
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;; interspersed question marks and the argument list is separate.
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(define (string-literal? s)
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(string? (syntax->datum s)))
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(syntax-case s ()
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((_ db (bindings ...) tail str arg rest ...)
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#'(sqlite-exec/bind db
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(bindings ... (str arg))
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tail
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rest ...))
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((_ db (bindings ...) tail str)
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#'(sqlite-exec/bind db (bindings ...) str))
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((_ db ((strings args) ...) tail)
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(and (every string-literal? #'(strings ...))
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(string-literal? #'tail))
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;; Optimized case: only string literals.
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(with-syntax ((query (string-join
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(append (syntax->datum #'(strings ...))
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(list (syntax->datum #'tail)))
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"? ")))
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#'(%sqlite-exec db query args ...)))
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((_ db ((strings args) ...) tail)
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;; Fallback case: some of the strings aren't literals.
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#'(%sqlite-exec db (string-join (list strings ... tail) "? ")
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args ...)))))
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(define-syntax-rule (sqlite-exec db query args ...)
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"Execute the specific QUERY with the given ARGS. Uses of 'sqlite-exec'
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typically look like this:
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(sqlite-exec db \"SELECT * FROM Foo WHERE x = \"
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x \"AND Y=\" y \";\")
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References to variables 'x' and 'y' here are replaced by question marks in the
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SQL query, and then 'sqlite-bind' is used to bind them.
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This ensures that (1) SQL injection is impossible, and (2) the number of
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question marks matches the number of arguments to bind."
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(sqlite-exec/bind db () "" query args ...))
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(define %package-database
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;; Define to the database file name of this package.
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(make-parameter (string-append %localstatedir "/lib/" %package
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"/" %package ".db")))
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(define %package-schema-file
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;; Define to the database schema file of this package.
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(make-parameter (string-append (or (getenv "CUIRASS_DATADIR")
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(string-append %datadir "/" %package))
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"/schema.sql")))
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(define %package-sql-dir
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;; Define to the directory containing the SQL files.
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(make-parameter (string-append (or (getenv "CUIRASS_DATADIR")
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(string-append %datadir "/" %package))
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"/sql")))
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(define %db-channel
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(make-parameter #f))
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(define-syntax-rule (with-db-critical-section db exp ...)
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"Evaluate EXP... in the critical section corresponding to %DB-CHANNEL.
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DB is bound to the argument of that critical section: the database
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connection."
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(call-with-critical-section (%db-channel)
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(lambda (db) exp ...)))
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(define (read-sql-file file-name)
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"Return a list of string containing SQL instructions from FILE-NAME."
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(call-with-input-file file-name
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(lambda (port)
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(let loop ((insts '()))
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(let ((inst (read-delimited ";" port 'concat)))
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(if (or (eof-object? inst)
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;; Don't cons the spaces after the last instructions.
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(string-every char-whitespace? inst))
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(reverse! insts)
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(loop (cons inst insts))))))))
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(define (set-db-options db)
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"Set various options for DB and return it."
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;; Turn DB in "write-ahead log" mode and return it.
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(sqlite-exec db "PRAGMA journal_mode=WAL;")
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;; Install a busy handler such that, when the database is locked, sqlite
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;; retries until 30 seconds have passed, at which point it gives up and
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;; throws SQLITE_BUSY. This is useful when we have several fibers or
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;; threads accessing the database concurrently.
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;;(sqlite-busy-timeout db (* 30 1000))
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(sqlite-exec db "PRAGMA busy_timeout = 30000;")
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db)
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(define (db-load db schema)
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"Evaluate the file SCHEMA, which may contain SQL queries, into DB."
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(for-each (cut sqlite-exec db <>)
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(read-sql-file schema)))
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(define (db-schema-version db)
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(vector-ref (car (sqlite-exec db "PRAGMA user_version;")) 0))
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(define (db-set-schema-version db version)
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(sqlite-exec db (format #f "PRAGMA user_version = ~d;" version)))
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(define (latest-db-schema-version)
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"Return the version to which the schema should be upgraded, based on the
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upgrade-n.sql files, or 0 if there are no such files."
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(reduce max 0
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(map (compose string->number (cut match:substring <> 1))
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(filter-map (cut string-match "^upgrade-([0-9]+)\\.sql$" <>)
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(or (scandir (%package-sql-dir)) '())))))
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(define* (db-init #:optional (db-name (%package-database))
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#:key (schema (%package-schema-file)))
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"Open the database to store and read jobs and builds informations. Return a
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database object."
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(when (file-exists? db-name)
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(format (current-error-port) "Removing leftover database ~a~%" db-name)
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(delete-file db-name))
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(let ((db (sqlite-open db-name (logior SQLITE_OPEN_CREATE
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SQLITE_OPEN_READWRITE
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SQLITE_OPEN_NOMUTEX))))
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(db-load db schema)
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(db-set-schema-version db (latest-db-schema-version))
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db))
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(define (schema-upgrade-file version)
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"Return the file containing the SQL instructions that upgrade the schema
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from VERSION-1 to VERSION."
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(in-vicinity (%package-sql-dir) (format #f "upgrade-~a.sql" version)))
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(define (db-upgrade db)
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"Upgrade database DB based on its current version and the available
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upgrade-n.sql files."
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(for-each (lambda (version)
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(db-load db (schema-upgrade-file version))
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(db-set-schema-version db version))
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(let ((current (db-schema-version db)))
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(iota (- (latest-db-schema-version) current) (1+ current))))
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db)
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(define* (db-open #:optional (db (%package-database)))
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"Open database to store or read jobs and builds informations. Return a
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database object."
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;; Use "write-ahead log" mode because it improves concurrency and should
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;; avoid SQLITE_LOCKED errors when we have several readers:
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;; <https://www.sqlite.org/wal.html>.
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;; SQLITE_OPEN_NOMUTEX disables mutexing on database connection and prepared
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;; statement objects, thus making us responsible for serializing access to
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;; database connections and prepared statements.
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(set-db-options (if (file-exists? db)
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(db-upgrade
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(sqlite-open db (logior SQLITE_OPEN_READWRITE
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SQLITE_OPEN_NOMUTEX)))
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(db-init db))))
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(define (db-close db)
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"Close database object DB."
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(sqlite-close db))
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(define (last-insert-rowid db)
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(vector-ref (car (sqlite-exec db "SELECT last_insert_rowid();"))
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0))
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(define (db-add-input spec-name input)
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(with-db-critical-section db
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(sqlite-exec db "\
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INSERT OR IGNORE INTO Inputs (specification, name, url, load_path, branch, \
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tag, revision, no_compile_p) VALUES ("
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spec-name ", "
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(assq-ref input #:name) ", "
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(assq-ref input #:url) ", "
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(assq-ref input #:load-path) ", "
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(assq-ref input #:branch) ", "
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(assq-ref input #:tag) ", "
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(assq-ref input #:commit) ", "
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(if (assq-ref input #:no-compile?) 1 0) ");")
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(last-insert-rowid db)))
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(define (db-add-specification spec)
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"Store SPEC in database the database. SPEC inputs are stored in the INPUTS
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table."
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(with-db-critical-section db
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(sqlite-exec db "\
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INSERT OR IGNORE INTO Specifications (name, load_path_inputs, \
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package_path_inputs, proc_input, proc_file, proc, proc_args) \
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VALUES ("
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(assq-ref spec #:name) ", "
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(assq-ref spec #:load-path-inputs) ", "
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(assq-ref spec #:package-path-inputs) ", "
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(assq-ref spec #:proc-input) ", "
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(assq-ref spec #:proc-file) ", "
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(symbol->string (assq-ref spec #:proc)) ", "
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(assq-ref spec #:proc-args) ");")
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(let ((spec-id (last-insert-rowid db)))
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(for-each (lambda (input)
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(db-add-input (assq-ref spec #:name) input))
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(assq-ref spec #:inputs))
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spec-id)))
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(define (db-get-inputs spec-name)
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(with-db-critical-section db
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(let loop ((rows (sqlite-exec
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db "SELECT * FROM Inputs WHERE specification="
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spec-name ";"))
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(inputs '()))
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(match rows
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(() inputs)
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((#(specification name url load-path branch tag revision no-compile-p)
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. rest)
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(loop rest
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(cons `((#:name . ,name)
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(#:url . ,url)
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(#:load-path . ,load-path)
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(#:branch . ,branch)
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(#:tag . ,tag)
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(#:commit . ,revision)
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(#:no-compile? . ,(positive? no-compile-p)))
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inputs)))))))
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(define (db-get-specifications)
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(with-db-critical-section db
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(let loop ((rows (sqlite-exec db "SELECT * FROM Specifications;"))
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(specs '()))
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(match rows
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(() specs)
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((#(name load-path-inputs package-path-inputs proc-input proc-file proc
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proc-args)
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. rest)
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(loop rest
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(cons `((#:name . ,name)
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(#:load-path-inputs .
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,(with-input-from-string load-path-inputs read))
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(#:package-path-inputs .
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,(with-input-from-string package-path-inputs read))
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(#:proc-input . ,proc-input)
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(#:proc-file . ,proc-file)
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(#:proc . ,(with-input-from-string proc read))
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(#:proc-args . ,(with-input-from-string proc-args read))
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(#:inputs . ,(db-get-inputs name)))
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specs)))))))
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(define (db-add-evaluation eval)
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(with-db-critical-section db
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(sqlite-exec db "\
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INSERT INTO Evaluations (specification, commits) VALUES ("
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(assq-ref eval #:specification) ", "
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(string-join (assq-ref eval #:commits)) ");")
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(last-insert-rowid db)))
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(define-syntax-rule (with-database body ...)
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"Run BODY with %DB-CHANNEL being dynamically bound to a channel implementing
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a critical section that allows database operations to be serialized."
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;; XXX: We don't install an unwind handler to play well with delimited
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;; continuations and fibers. But as a consequence, we leak DB when BODY
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;; raises an exception.
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(let ((db (db-open)))
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(unwind-protect
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;; Process database queries sequentially in a thread. We need this
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;; because otherwise we would need to use the SQLite multithreading
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;; feature for which it is required to wait until the database is
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;; available, and the waiting would happen in non-cooperative and
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;; non-resumable code that blocks the fibers scheduler. Now the database
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;; access blocks on PUT-MESSAGE, which allows the scheduler to schedule
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;; another fiber. Also, creating one new handle for each request would
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;; be costly and may defeat statement caching.
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(parameterize ((%db-channel (make-critical-section db)))
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body ...)
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(db-close db))))
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(define* (read-quoted-string #:optional (port (current-input-port)))
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"Read all of the characters out of PORT and return them as a SQL quoted
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string."
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(let loop ((chars '()))
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(let ((char (read-char port)))
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(cond ((eof-object? char) (list->string (reverse! chars)))
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((char=? char #\') (loop (cons* char char chars)))
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(else (loop (cons char chars)))))))
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;; Extended error codes (see <sqlite3.h>).
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;; XXX: This should be defined by (sqlite3).
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(define SQLITE_CONSTRAINT 19)
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(define SQLITE_CONSTRAINT_PRIMARYKEY
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(logior SQLITE_CONSTRAINT (ash 6 8)))
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(define SQLITE_CONSTRAINT_UNIQUE
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(logior SQLITE_CONSTRAINT (ash 8 8)))
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(define-enumeration build-status
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;; Build status as expected by Hydra's API. Note: the negative values are
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;; Cuirass' own extensions.
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(scheduled -2)
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(started -1)
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(succeeded 0)
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(failed 1)
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(failed-dependency 2)
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(failed-other 3)
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(canceled 4))
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(define (db-add-build build)
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"Store BUILD in database the database. BUILD eventual outputs are stored in
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the OUTPUTS table."
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(with-db-critical-section db
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(catch 'sqlite-error
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(lambda ()
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(sqlite-exec db "
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INSERT INTO Builds (derivation, evaluation, job_name, system, nix_name, log,
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status, timestamp, starttime, stoptime)
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VALUES ("
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(assq-ref build #:derivation) ", "
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(assq-ref build #:eval-id) ", "
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(assq-ref build #:job-name) ", "
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(assq-ref build #:system) ", "
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(assq-ref build #:nix-name) ", "
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(assq-ref build #:log) ", "
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(or (assq-ref build #:status)
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(build-status scheduled)) ", "
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(or (assq-ref build #:timestamp) 0) ", "
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(or (assq-ref build #:starttime) 0) ", "
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(or (assq-ref build #:stoptime) 0) ");")
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(let ((derivation (assq-ref build #:derivation)))
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(for-each (lambda (output)
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(match output
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((name . path)
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(sqlite-exec db "\
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INSERT INTO Outputs (derivation, name, path) VALUES ("
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derivation ", " name ", " path ");"))))
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(assq-ref build #:outputs))
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derivation))
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(lambda (key who code message . rest)
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;; If we get a unique-constraint-failed error, that means we have
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;; already inserted the same build. That happens when several jobs
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;; produce the same derivation, and we can ignore it.
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(if (= code SQLITE_CONSTRAINT_PRIMARYKEY)
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#f
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(apply throw key who code rest))))))
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(define* (db-update-build-status! drv status #:key log-file)
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"Update the database so that DRV's status is STATUS. This also updates the
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'starttime' or 'stoptime' fields. If LOG-FILE is true, record it as the build
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log file for DRV."
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(define now
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(time-second (current-time time-utc)))
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(with-db-critical-section db
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(if (= status (build-status started))
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(sqlite-exec db "UPDATE Builds SET starttime=" now ", status="
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status "WHERE derivation=" drv ";")
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;; Update only if we're switching to a different status; otherwise
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;; leave things unchanged. This ensures that 'stoptime' remains valid
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;; and doesn't change every time we mark DRV as 'succeeded' several
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;; times in a row, for instance.
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(if log-file
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(sqlite-exec db "UPDATE Builds SET stoptime=" now
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", status=" status ", log=" log-file
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"WHERE derivation=" drv "AND status != " status ";")
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(sqlite-exec db "UPDATE Builds SET stoptime=" now
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", status=" status
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"WHERE derivation=" drv " AND status != " status
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";")))))
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(define (db-get-outputs derivation)
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"Retrieve the OUTPUTS of the build identified by DERIVATION in the
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database."
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(with-db-critical-section db
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(let loop ((rows
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(sqlite-exec db "SELECT name, path FROM Outputs
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WHERE derivation =" derivation ";"))
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(outputs '()))
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(match rows
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(() outputs)
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((#(name path)
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. rest)
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(loop rest
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(cons `(,name . ((#:path . ,path)))
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outputs)))))))
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(define (filters->order filters)
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(match (assq 'order filters)
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(('order . 'build-id) "rowid ASC")
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(('order . 'decreasing-build-id) "rowid DESC")
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(('order . 'finish-time) "stoptime DESC")
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(('order . 'finish-time+build-id) "stoptime DESC, rowid DESC")
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(('order . 'start-time) "starttime DESC")
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(('order . 'submission-time) "timestamp DESC")
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;; With this order, builds in 'running' state (-1) appear
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;; before those in 'scheduled' state (-2).
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(('order . 'status+submission-time) "status DESC, timestamp DESC")
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(_ "rowid DESC")))
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(define (db-get-builds filters)
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"Retrieve all builds in the database which are matched by given FILTERS.
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FILTERS is an assoc list whose possible keys are 'derivation | 'id | 'jobset |
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'job | 'system | 'nr | 'order | 'status | 'evaluation."
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(with-db-critical-section db
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(let* ((order (filters->order filters))
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(stmt-text (format #f "SELECT * FROM (
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SELECT Builds.derivation, Builds.rowid, Builds.timestamp, Builds.starttime,
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Builds.stoptime, Builds.log, Builds.status, Builds.job_name, Builds.system,
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Builds.nix_name, Specifications.name
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FROM Builds
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INNER JOIN Evaluations ON Builds.evaluation = Evaluations.id
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INNER JOIN Specifications ON Evaluations.specification = Specifications.name
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WHERE (:id IS NULL OR (:id = Builds.rowid))
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AND (:derivation IS NULL OR (:derivation = Builds.derivation))
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AND (:jobset IS NULL OR (:jobset = Specifications.name))
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AND (:job IS NULL OR (:job = Builds.job_name))
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AND (:system IS NULL OR (:system = Builds.system))
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AND (:evaluation IS NULL OR (:evaluation = Builds.evaluation))
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AND (:status IS NULL OR (:status = 'done' AND Builds.status >= 0)
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OR (:status = 'pending' AND Builds.status < 0))
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AND (:borderlowtime IS NULL OR :borderlowid IS NULL
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OR ((:borderlowtime, :borderlowid) < (Builds.stoptime, Builds.rowid)))
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AND (:borderhightime IS NULL OR :borderhighid IS NULL
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OR ((:borderhightime, :borderhighid) > (Builds.stoptime, Builds.rowid)))
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ORDER BY
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CASE WHEN :borderlowtime IS NULL
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OR :borderlowid IS NULL THEN Builds.stoptime
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ELSE -Builds.stoptime
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END DESC,
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CASE WHEN :borderlowtime IS NULL
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OR :borderlowid IS NULL THEN Builds.rowid
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ELSE -Builds.rowid
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END DESC
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LIMIT :nr)
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ORDER BY ~a, rowid ASC;" order))
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(stmt (sqlite-prepare db stmt-text #:cache? #t)))
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(sqlite-bind-arguments
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stmt
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#:derivation (assq-ref filters 'derivation)
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#:id (assq-ref filters 'id)
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#:jobset (assq-ref filters 'jobset)
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|
#:job (assq-ref filters 'job)
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|
#:evaluation (assq-ref filters 'evaluation)
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#:system (assq-ref filters 'system)
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#:status (and=> (assq-ref filters 'status) object->string)
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#:borderlowid (assq-ref filters 'border-low-id)
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|
#:borderhighid (assq-ref filters 'border-high-id)
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|
#:borderlowtime (assq-ref filters 'border-low-time)
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|
#:borderhightime (assq-ref filters 'border-high-time)
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|
#:nr (match (assq-ref filters 'nr)
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(#f -1)
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(x x)))
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(sqlite-reset stmt)
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(let loop ((rows (sqlite-fold-right cons '() stmt))
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(builds '()))
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(match rows
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(() (reverse builds))
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((#(derivation id timestamp starttime stoptime log status job-name
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|
system nix-name specification) . rest)
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|
(loop rest
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|
(cons `((#:derivation . ,derivation)
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(#:id . ,id)
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|
(#:timestamp . ,timestamp)
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|
(#:starttime . ,starttime)
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|
(#:stoptime . ,stoptime)
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|
(#:log . ,log)
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|
(#:status . ,status)
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|
(#:job-name . ,job-name)
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|
(#:system . ,system)
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|
(#:nix-name . ,nix-name)
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|
(#:specification . ,specification)
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|
(#:outputs . ,(db-get-outputs derivation)))
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|
builds))))))))
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|
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(define (db-get-build derivation-or-id)
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|
"Retrieve a build in the database which corresponds to DERIVATION-OR-ID."
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|
(with-db-critical-section db
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|
(let ((key (if (number? derivation-or-id) 'id 'derivation)))
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(match (db-get-builds `((,key . ,derivation-or-id)))
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|
((build)
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|
build)
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|
(() #f)))))
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|
|
|
(define (db-get-pending-derivations)
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|
"Return the list of derivation file names corresponding to pending builds in
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|
the database. The returned list is guaranteed to not have any duplicates."
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|
(with-db-critical-section db
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|
(map (match-lambda (#(drv) drv))
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|
(sqlite-exec db "
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|
SELECT derivation FROM Builds WHERE Builds.status < 0;"))))
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|
|
|
(define (db-get-stamp spec)
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|
"Return a stamp corresponding to specification SPEC in the database."
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|
(with-db-critical-section db
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|
(let ((res (sqlite-exec db "SELECT * FROM Stamps WHERE specification="
|
|
(assq-ref spec #:name) ";")))
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|
(match res
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|
(() #f)
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|
((#(spec stamp)) stamp)))))
|
|
|
|
(define (db-add-stamp spec stamp)
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|
"Associate STAMP to specification SPEC in the database."
|
|
(with-db-critical-section db
|
|
(if (db-get-stamp spec)
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|
(sqlite-exec db "UPDATE Stamps SET stamp=" stamp
|
|
"WHERE specification=" (assq-ref spec #:name) ";")
|
|
(sqlite-exec db "\
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|
INSERT INTO Stamps (specification, stamp) VALUES ("
|
|
(assq-ref spec #:name) ", " stamp ");"))))
|
|
|
|
(define (db-get-evaluations limit)
|
|
(with-db-critical-section db
|
|
(let loop ((rows (sqlite-exec db "SELECT id, specification, commits
|
|
FROM Evaluations ORDER BY id DESC LIMIT " limit ";"))
|
|
(evaluations '()))
|
|
(match rows
|
|
(() (reverse evaluations))
|
|
((#(id specification commits)
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|
. rest)
|
|
(loop rest
|
|
(cons `((#:id . ,id)
|
|
(#:specification . ,specification)
|
|
(#:commits . ,(string-tokenize commits)))
|
|
evaluations)))))))
|
|
|
|
(define (db-get-evaluations-build-summary spec limit border-low border-high)
|
|
(with-db-critical-section db
|
|
(let loop ((rows (sqlite-exec db "
|
|
SELECT E.id, E.commits, B.succeeded, B.failed, B.scheduled
|
|
FROM
|
|
(SELECT id, commits
|
|
FROM Evaluations
|
|
WHERE (specification=" spec ")
|
|
AND (" border-low "IS NULL OR (id >" border-low "))
|
|
AND (" border-high "IS NULL OR (id <" border-high "))
|
|
ORDER BY CASE WHEN " border-low "IS NULL THEN id ELSE -id END DESC
|
|
LIMIT " limit ") E
|
|
LEFT JOIN
|
|
(SELECT rowid, evaluation, SUM(status=0) as succeeded,
|
|
SUM(status>0) as failed, SUM(status<0) as scheduled
|
|
FROM Builds
|
|
GROUP BY evaluation) B
|
|
ON B.evaluation=E.id
|
|
ORDER BY E.id ASC;"))
|
|
(evaluations '()))
|
|
(match rows
|
|
(() evaluations)
|
|
((#(id commits succeeded failed scheduled) . rest)
|
|
(loop rest
|
|
(cons `((#:id . ,id)
|
|
(#:commits . ,commits)
|
|
(#:succeeded . ,(or succeeded 0))
|
|
(#:failed . ,(or failed 0))
|
|
(#:scheduled . ,(or scheduled 0)))
|
|
evaluations)))))))
|
|
|
|
(define (db-get-evaluations-id-min spec)
|
|
"Return the min id of evaluations for the given specification SPEC."
|
|
(with-db-critical-section db
|
|
(let ((rows (sqlite-exec db "
|
|
SELECT MIN(id) FROM Evaluations
|
|
WHERE specification=" spec)))
|
|
(vector-ref (car rows) 0))))
|
|
|
|
(define (db-get-evaluations-id-max spec)
|
|
"Return the max id of evaluations for the given specification SPEC."
|
|
(with-db-critical-section db
|
|
(let ((rows (sqlite-exec db "
|
|
SELECT MAX(id) FROM Evaluations
|
|
WHERE specification=" spec)))
|
|
(vector-ref (car rows) 0))))
|
|
|
|
(define (db-get-builds-min eval)
|
|
"Return the min build (stoptime, id) pair for
|
|
the given evaluation EVAL."
|
|
(with-db-critical-section db
|
|
(let ((rows (sqlite-exec db "
|
|
SELECT stoptime, MIN(rowid) FROM
|
|
(SELECT rowid, stoptime FROM Builds
|
|
WHERE evaluation=" eval " AND
|
|
stoptime = (SELECT MIN(stoptime)
|
|
FROM Builds WHERE evaluation=" eval "))")))
|
|
(vector->list (car rows)))))
|
|
|
|
(define (db-get-builds-max eval)
|
|
"Return the max build (stoptime, id) pair for
|
|
the given evaluation EVAL."
|
|
(with-db-critical-section db
|
|
(let ((rows (sqlite-exec db "
|
|
SELECT stoptime, MAX(rowid) FROM
|
|
(SELECT rowid, stoptime FROM Builds
|
|
WHERE evaluation=" eval " AND
|
|
stoptime = (SELECT MAX(stoptime)
|
|
FROM Builds WHERE evaluation=" eval "))")))
|
|
(vector->list (car rows)))))
|