#: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
+ #:export (shepherd-root-service-type
+ %shepherd-root-service
+ shepherd-service-type
+
+ shepherd-service
+ shepherd-service?
+ shepherd-service-documentation
+ shepherd-service-provision
+ shepherd-service-requirement
+ shepherd-service-respawn?
+ shepherd-service-start
+ shepherd-service-stop
+ shepherd-service-auto-start?
+ shepherd-service-modules
+ shepherd-service-imported-modules
%default-imported-modules
%default-modules
- dmd-service-back-edges))
+ shepherd-service-back-edges))
;;; Commentary:
;;;
;;; Code:
-(define (dmd-boot-gexp services)
+(define (shepherd-boot-gexp services)
(mlet %store-monad ((shepherd-conf (shepherd-configuration-file services)))
(return #~(begin
;; Keep track of the booted system.
(execl (string-append #$shepherd "/bin/shepherd")
"shepherd" "--config" #$shepherd-conf)))))
-(define dmd-root-service-type
+(define shepherd-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.
+ (name 'shepherd-root)
+ ;; Extending the root shepherd 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)
+ (extensions (list (service-extension boot-service-type
+ shepherd-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 %shepherd-root-service
+ ;; The root shepherd service, aka. PID 1. Its parameter is a list of
+ ;; <shepherd-service> objects.
+ (service shepherd-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."
+(define-syntax-rule (shepherd-service-type service-name proc)
+ "Return a <service-type> denoting a simple shepherd service--i.e., the type
+for a service that extends SHEPHERD-ROOT-SERVICE-TYPE and nothing else."
(service-type
(name service-name)
(extensions
- (list (service-extension dmd-root-service-type
+ (list (service-extension shepherd-root-service-type
(compose list proc))))))
(define %default-imported-modules
(guix build utils)
(guix build syscalls)))
-(define-record-type* <dmd-service>
- dmd-service make-dmd-service
- dmd-service?
- (documentation dmd-service-documentation ;string
+(define-record-type* <shepherd-service>
+ shepherd-service make-shepherd-service
+ shepherd-service?
+ (documentation shepherd-service-documentation ;string
(default "[No documentation.]"))
- (provision dmd-service-provision) ;list of symbols
- (requirement dmd-service-requirement ;list of symbols
+ (provision shepherd-service-provision) ;list of symbols
+ (requirement shepherd-service-requirement ;list of symbols
(default '()))
- (respawn? dmd-service-respawn? ;Boolean
+ (respawn? shepherd-service-respawn? ;Boolean
(default #t))
- (start dmd-service-start) ;g-expression (procedure)
- (stop dmd-service-stop ;g-expression (procedure)
+ (start shepherd-service-start) ;g-expression (procedure)
+ (stop shepherd-service-stop ;g-expression (procedure)
(default #~(const #f)))
- (auto-start? dmd-service-auto-start? ;Boolean
+ (auto-start? shepherd-service-auto-start? ;Boolean
(default #t))
- (modules dmd-service-modules ;list of module names
+ (modules shepherd-service-modules ;list of module names
(default %default-modules))
- (imported-modules dmd-service-imported-modules ;list of module names
+ (imported-modules shepherd-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
+ "Raise an error if SERVICES does not define a valid shepherd 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."
+These are constraints that shepherd'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.
(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)
+ (for-each assert-unique (shepherd-service-provision service))
+ (fold set-insert set (shepherd-service-provision service)))
+ (setq 'shepherd)
services))
(define (assert-satisfied-requirements service)
(message
(format #f (_ "service '~a' requires '~a', \
which is undefined")
- (match (dmd-service-provision service)
+ (match (shepherd-service-provision service)
((head . _) head)
(_ service))
requirement)))))))
- (dmd-service-requirement service)))
+ (shepherd-service-requirement service)))
(for-each assert-satisfied-requirements services))
-(define (dmd-service-file-name service)
+(define (shepherd-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-"
+ (shepherd-service-provision service)))))
+ (string-append "shepherd-"
(string-map (match-lambda
(#\/ #\-)
(chr chr))
provisions)
".scm")))
-(define (dmd-service-file service)
+(define (shepherd-service-file service)
"Return a file defining SERVICE."
- (gexp->file (dmd-service-file-name service)
+ (gexp->file (shepherd-service-file-name service)
#~(begin
- (use-modules #$@(dmd-service-modules service))
+ (use-modules #$@(shepherd-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)))))
+ #:docstring '#$(shepherd-service-documentation service)
+ #:provides '#$(shepherd-service-provision service)
+ #:requires '#$(shepherd-service-requirement service)
+ #:respawn? '#$(shepherd-service-respawn? service)
+ #:start #$(shepherd-service-start service)
+ #:stop #$(shepherd-service-stop service)))))
(define (shepherd-configuration-file services)
"Return the shepherd configuration file for SERVICES."
(define modules
(delete-duplicates
- (append-map dmd-service-imported-modules services)))
+ (append-map shepherd-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)))
+ (files (mapm %store-monad
+ shepherd-service-file
+ services)))
(define config
#~(begin
(eval-when (expand load eval)
(format #t "starting services...~%")
(for-each start
- '#$(append-map dmd-service-provision
- (filter dmd-service-auto-start?
+ '#$(append-map shepherd-service-provision
+ (filter shepherd-service-auto-start?
services)))))
(gexp->file "shepherd.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 (shepherd-service-back-edges services)
+ "Return a procedure that, when given a <shepherd-service> from SERVICES,
+returns the list of <shepherd-service> that depend on it."
(define provision->service
(let ((services (fold (lambda (service result)
(fold (cut vhash-consq <> service <>)
result
- (dmd-service-provision service)))
+ (shepherd-service-provision service)))
vlist-null
services)))
(lambda (name)
(vhash-consq (provision->service requirement) service
edges))
edges
- (dmd-service-requirement service)))
+ (shepherd-service-requirement service)))
vlist-null
services))
HCoop / jackhill / guix / guix.git / blobdiff