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authorAlex Kost <alezost@gmail.com>2016-01-27 15:45:01 +0300
committerAlex Kost <alezost@gmail.com>2016-01-29 20:21:53 +0300
commit0190c1c02fd8cefa9642add58b4c7ccf75f082a7 (patch)
treec25c9eb16b2d1bb6d242c073637811d16ae8d391 /gnu/services/dmd.scm
parentdd17bc38213d72a06d9a2a1e5402abcf24b0c21a (diff)
Rename (gnu services dmd) to (gnu services shepherd).
* gnu/services/dmd.scm: Rename to... * gnu/services/shepherd.scm: ... this. * gnu/system.scm: Use it. * gnu/system/install.scm: Likewise. * gnu/services/xorg.scm: Likewise. * gnu/services/web.scm: Likewise. * gnu/services/ssh.scm: Likewise. * gnu/services/networking.scm: Likewise. * gnu/services/mail.scm: Likewise. * gnu/services/lirc.scm: Likewise. * gnu/services/desktop.scm: Likewise. * gnu/services/dbus.scm: Likewise. * gnu/services/databases.scm: Likewise. * gnu/services/base.scm: Likewise. * gnu/services/avahi.scm: Likewise. * guix/scripts/system.scm: Likewise. * tests/services.scm: Likewise. * tests/guix-system.sh: Likewise. * doc/guix.texi (Shepherd Services): Adjust accordingly. * gnu-system.am (GNU_SYSTEM_MODULES): Likewise. * po/guix/POTFILES.in: Likewise.
Diffstat (limited to 'gnu/services/dmd.scm')
-rw-r--r--gnu/services/dmd.scm275
1 files changed, 0 insertions, 275 deletions
diff --git a/gnu/services/dmd.scm b/gnu/services/dmd.scm
deleted file mode 100644
index 828d781e4a..0000000000
--- a/gnu/services/dmd.scm
+++ /dev/null
@@ -1,275 +0,0 @@
-;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
-;;;
-;;; This file is part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
-
-(define-module (gnu services dmd)
- #:use-module (guix ui)
- #:use-module (guix sets)
- #:use-module (guix gexp)
- #:use-module (guix store)
- #:use-module (guix monads)
- #:use-module (guix records)
- #:use-module (guix derivations) ;imported-modules, etc.
- #:use-module (gnu services)
- #:use-module (gnu packages admin)
- #:use-module (ice-9 match)
- #:use-module (ice-9 vlist)
- #:use-module (srfi srfi-1)
- #:use-module (srfi srfi-26)
- #:use-module (srfi srfi-34)
- #:use-module (srfi srfi-35)
- #:export (dmd-root-service-type
- %dmd-root-service
- dmd-service-type
-
- dmd-service
- dmd-service?
- dmd-service-documentation
- dmd-service-provision
- dmd-service-requirement
- dmd-service-respawn?
- dmd-service-start
- dmd-service-stop
- dmd-service-auto-start?
- dmd-service-modules
- dmd-service-imported-modules
-
- %default-imported-modules
- %default-modules
-
- dmd-service-back-edges))
-
-;;; Commentary:
-;;;
-;;; Instantiating system services as a dmd configuration file.
-;;;
-;;; Code:
-
-
-(define (dmd-boot-gexp services)
- (mlet %store-monad ((dmd-conf (dmd-configuration-file services)))
- (return #~(begin
- ;; Keep track of the booted system.
- (false-if-exception (delete-file "/run/booted-system"))
- (symlink (readlink "/run/current-system")
- "/run/booted-system")
-
- ;; Close any remaining open file descriptors to be on the safe
- ;; side. This must be the very last thing we do, because
- ;; Guile has internal FDs such as 'sleep_pipe' that need to be
- ;; alive.
- (let loop ((fd 3))
- (when (< fd 1024)
- (false-if-exception (close-fdes fd))
- (loop (+ 1 fd))))
-
- ;; Start shepherd.
- (execl (string-append #$shepherd "/bin/shepherd")
- "shepherd" "--config" #$dmd-conf)))))
-
-(define dmd-root-service-type
- (service-type
- (name 'dmd-root)
- ;; Extending the root dmd service (aka. PID 1) happens by concatenating the
- ;; list of services provided by the extensions.
- (compose concatenate)
- (extend append)
- (extensions (list (service-extension boot-service-type dmd-boot-gexp)
- (service-extension profile-service-type
- (const (list shepherd)))))))
-
-(define %dmd-root-service
- ;; The root dmd service, aka. PID 1. Its parameter is a list of
- ;; <dmd-service> objects.
- (service dmd-root-service-type '()))
-
-(define-syntax-rule (dmd-service-type service-name proc)
- "Return a <service-type> denoting a simple dmd service--i.e., the type for a
-service that extends DMD-ROOT-SERVICE-TYPE and nothing else."
- (service-type
- (name service-name)
- (extensions
- (list (service-extension dmd-root-service-type
- (compose list proc))))))
-
-(define %default-imported-modules
- ;; Default set of modules imported for a service's consumption.
- '((guix build utils)
- (guix build syscalls)))
-
-(define %default-modules
- ;; Default set of modules visible in a service's file.
- `((shepherd service)
- (oop goops)
- (guix build utils)
- (guix build syscalls)))
-
-(define-record-type* <dmd-service>
- dmd-service make-dmd-service
- dmd-service?
- (documentation dmd-service-documentation ;string
- (default "[No documentation.]"))
- (provision dmd-service-provision) ;list of symbols
- (requirement dmd-service-requirement ;list of symbols
- (default '()))
- (respawn? dmd-service-respawn? ;Boolean
- (default #t))
- (start dmd-service-start) ;g-expression (procedure)
- (stop dmd-service-stop ;g-expression (procedure)
- (default #~(const #f)))
- (auto-start? dmd-service-auto-start? ;Boolean
- (default #t))
- (modules dmd-service-modules ;list of module names
- (default %default-modules))
- (imported-modules dmd-service-imported-modules ;list of module names
- (default %default-imported-modules)))
-
-
-(define (assert-valid-graph services)
- "Raise an error if SERVICES does not define a valid dmd service graph, for
-instance if a service requires a nonexistent service, or if more than one
-service uses a given name.
-
-These are constraints that dmd's 'register-service' verifies but we'd better
-verify them here statically than wait until PID 1 halts with an assertion
-failure."
- (define provisions
- ;; The set of provisions (symbols). Bail out if a symbol is given more
- ;; than once.
- (fold (lambda (service set)
- (define (assert-unique symbol)
- (when (set-contains? set symbol)
- (raise (condition
- (&message
- (message
- (format #f (_ "service '~a' provided more than once")
- symbol)))))))
-
- (for-each assert-unique (dmd-service-provision service))
- (fold set-insert set (dmd-service-provision service)))
- (setq 'dmd)
- services))
-
- (define (assert-satisfied-requirements service)
- ;; Bail out if the requirements of SERVICE aren't satisfied.
- (for-each (lambda (requirement)
- (unless (set-contains? provisions requirement)
- (raise (condition
- (&message
- (message
- (format #f (_ "service '~a' requires '~a', \
-which is undefined")
- (match (dmd-service-provision service)
- ((head . _) head)
- (_ service))
- requirement)))))))
- (dmd-service-requirement service)))
-
- (for-each assert-satisfied-requirements services))
-
-(define (dmd-service-file-name service)
- "Return the file name where the initialization code for SERVICE is to be
-stored."
- (let ((provisions (string-join (map symbol->string
- (dmd-service-provision service)))))
- (string-append "dmd-"
- (string-map (match-lambda
- (#\/ #\-)
- (chr chr))
- provisions)
- ".scm")))
-
-(define (dmd-service-file service)
- "Return a file defining SERVICE."
- (gexp->file (dmd-service-file-name service)
- #~(begin
- (use-modules #$@(dmd-service-modules service))
-
- (make <service>
- #:docstring '#$(dmd-service-documentation service)
- #:provides '#$(dmd-service-provision service)
- #:requires '#$(dmd-service-requirement service)
- #:respawn? '#$(dmd-service-respawn? service)
- #:start #$(dmd-service-start service)
- #:stop #$(dmd-service-stop service)))))
-
-(define (dmd-configuration-file services)
- "Return the dmd configuration file for SERVICES."
- (define modules
- (delete-duplicates
- (append-map dmd-service-imported-modules services)))
-
- (assert-valid-graph services)
-
- (mlet %store-monad ((modules (imported-modules modules))
- (compiled (compiled-modules modules))
- (files (mapm %store-monad dmd-service-file services)))
- (define config
- #~(begin
- (eval-when (expand load eval)
- (set! %load-path (cons #$modules %load-path))
- (set! %load-compiled-path
- (cons #$compiled %load-compiled-path)))
-
- (use-modules (system repl error-handling))
-
- ;; Arrange to spawn a REPL if loading one of FILES fails. This is
- ;; better than a kernel panic.
- (call-with-error-handling
- (lambda ()
- (apply register-services (map primitive-load '#$files))))
-
- ;; guix-daemon 0.6 aborts if 'PATH' is undefined, so work around it.
- (setenv "PATH" "/run/current-system/profile/bin")
-
- (format #t "starting services...~%")
- (for-each start
- '#$(append-map dmd-service-provision
- (filter dmd-service-auto-start?
- services)))))
-
- (gexp->file "dmd.conf" config)))
-
-(define (dmd-service-back-edges services)
- "Return a procedure that, when given a <dmd-service> from SERVICES, returns
-the list of <dmd-service> that depend on it."
- (define provision->service
- (let ((services (fold (lambda (service result)
- (fold (cut vhash-consq <> service <>)
- result
- (dmd-service-provision service)))
- vlist-null
- services)))
- (lambda (name)
- (match (vhash-assq name services)
- ((_ . service) service)
- (#f #f)))))
-
- (define edges
- (fold (lambda (service edges)
- (fold (lambda (requirement edges)
- (vhash-consq (provision->service requirement) service
- edges))
- edges
- (dmd-service-requirement service)))
- vlist-null
- services))
-
- (lambda (service)
- (vhash-foldq* cons '() service edges)))
-
-;;; dmd.scm ends here