diff options
Diffstat (limited to 'gnu/services')
| -rw-r--r-- | gnu/services/base.scm | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/gnu/services/base.scm b/gnu/services/base.scm index bf5af8369e..014eef053b 100644 --- a/gnu/services/base.scm +++ b/gnu/services/base.scm @@ -38,6 +38,7 @@ #:use-module (ice-9 format) #:export (root-file-system-service file-system-service + device-mapping-service user-processes-service host-name-service console-font-service @@ -99,18 +100,20 @@ This service must be the root of the service dependency graph so that its (define* (file-system-service device target type #:key (flags '()) (check? #t) - create-mount-point? options (title 'any)) + create-mount-point? options (title 'any) + (requirements '())) "Return a service that mounts DEVICE on TARGET as a file system TYPE with OPTIONS. TITLE is a symbol specifying what kind of name DEVICE is: 'label for a partition label, 'device for a device file name, or 'any. When CHECK? is true, check the file system before mounting it. When CREATE-MOUNT-POINT? is true, create TARGET if it does not exist yet. FLAGS is a list of symbols, -such as 'read-only' etc." +such as 'read-only' etc. Optionally, REQUIREMENTS may be a list of service +names such as device-mapping services." (with-monad %store-monad (return (service (provision (list (symbol-append 'file-system- (string->symbol target)))) - (requirement '(root-file-system)) + (requirement `(root-file-system ,@requirements)) (documentation "Check, mount, and unmount the given file system.") (start #~(lambda args (let ((device (canonicalize-device-spec #$device '#$title))) @@ -567,6 +570,21 @@ extra rules from the packages listed in @var{rules}." pid))))) (stop #~(make-kill-destructor)))))) +(define (device-mapping-service target command) + "Return a service that maps device @var{target}, a string such as +@code{\"home\"} (meaning @code{/dev/mapper/home}), by executing @var{command}, +a gexp." + (with-monad %store-monad + (return (service + (provision (list (symbol-append 'device-mapping- + (string->symbol target)))) + (requirement '(udev)) + (documentation "Map a device node using Linux's device mapper.") + (start #~(lambda () + #$command)) + (stop #~(const #f)) + (respawn? #f))))) + (define %base-services ;; Convenience variable holding the basic services. (let ((motd (text-file "motd" " |