Christopher Baines
bd292d6f57
This'll help the a service manager (like the shepherd) know when the service is ready, which at the moment, means the database migrations have happened.
102 lines
3.7 KiB
Text
102 lines
3.7 KiB
Text
#!@GUILE@ --no-auto-compile
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-*- scheme -*-
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-*- geiser-scheme-implementation: guile -*-
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!#
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;;; Guix Data Service -- Information about Guix over time
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;;; Copyright © 2016, 2017 Ricardo Wurmus <rekado@elephly.net>
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;;; Copyright © 2018 Arun Isaac <arunisaac@systemreboot.net>
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;;; Copyright © 2019 Christopher Baines <mail@cbaines.net>
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;;;
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;;; This file is part of guix-data-service.
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;;;
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;;; guix-data-service is free software; you can redistribute it and/or modify it
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;;; 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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;;; guix-data-service is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;; 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 the guix-data-service. If not, see
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;;; <http://www.gnu.org/licenses/>.
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(use-modules (srfi srfi-1)
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(srfi srfi-37)
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(system repl server)
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(guix-data-service config)
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(guix-data-service web server))
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(define %default-repl-server-port
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;; Default port to run REPL server on, if --listen-repl is provided
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;; but no port is mentioned
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37146)
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(define %options
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;; Specifications of the command-line options
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(list (option '("listen-repl") #f #t
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(lambda (opt name arg result)
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(let ((port (cond (arg => string->number)
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(else %default-repl-server-port))))
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(if port
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(alist-cons 'listen-repl port
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(alist-delete 'listen-repl result))
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(error "invalid REPL server port" arg)))))
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(option '("pid-file") #t #f
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(lambda (opt name arg result)
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(alist-cons 'pid-file
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arg
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result)))
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(option '("update-database") #f #f
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(lambda (opt name _ result)
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(alist-cons 'update-database #t result)))))
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(define %default-options
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;; Alist of default option values
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`((listen-repl . #f)
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(update-database . #f)))
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(define (parse-options args)
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(args-fold
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args %options
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(lambda (opt name arg result)
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(error "unrecognized option" name))
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(lambda (arg result)
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(error "extraneous argument" arg))
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%default-options))
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(let ((opts (parse-options (cdr (program-arguments)))))
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(let ((repl-port (assoc-ref opts 'listen-repl)))
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(when repl-port
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(spawn-server (make-tcp-server-socket #:port repl-port))))
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(when (assoc-ref opts 'update-database)
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(let ((command
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(list (%config 'sqitch)
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"deploy"
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"--db-client" (%config 'sqitch-psql)
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"--chdir" (dirname (%config 'sqitch-plan))
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"--plan-file" (%config 'sqitch-plan)
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(string-append "db:pg://"
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(%config 'database-user)
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"@"
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(%config 'database-host)
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"/"
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(%config 'database-name)))))
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(simple-format #t "running command: ~A\n"
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(string-join command))
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(unless (zero? (apply system* command))
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(simple-format
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(current-error-port)
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"error: sqitch command failed\n")
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(exit 1))))
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(let ((pid-file (assq-ref opts 'pid-file)))
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(when pid-file
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(call-with-output-file pid-file
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(lambda (port)
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(simple-format port "~A\n" (getpid)))))))
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(start-guix-data-service-web-server 8765)
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