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gnu: Add (gnu system).

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* gnu/system/vm.scm (lower-inputs): Move to monads.scm.
  (qemu-image): Don't add GRUB-CONFIGURATION to the INPUTS-TO-COPY.
  (union, file-union, etc-directory): Move to gnu/system.scm.
  (%demo-operating-system): New variable.
  (system-qemu-image): Add 'os' parameter.  Rewrite in terms of
  'operating-system-derivation'.
* guix/monads.scm (lower-inputs): New procedure.
* gnu/system/grub.scm (grub-configuration-file): Change 'entries' to be
  a plain list instead of a list of monadic values.
* gnu/system.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
This commit is contained in:
Ludovic Courtès 2013-12-09 21:32:36 +01:00
parent 593c3fe600
commit 033adfe7e0
5 changed files with 413 additions and 261 deletions
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1
gnu-system.am
View file

@ -206,6 +206,7 @@ GNU_SYSTEM_MODULES = \
gnu/packages/zile.scm \
gnu/packages/zip.scm \
\
gnu/system.scm \
gnu/system/dmd.scm \
gnu/system/grub.scm \
gnu/system/linux.scm \

341
gnu/system.scm Normal file
View file

@ -0,0 +1,341 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 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 system)
#:use-module (guix store)
#:use-module (guix monads)
#:use-module (guix records)
#:use-module (guix packages)
#:use-module (guix derivations)
#:use-module (gnu packages linux-initrd)
#:use-module (gnu packages base)
#:use-module (gnu packages bash)
#:use-module (gnu packages system)
#:use-module (gnu packages package-management)
#:use-module (gnu system dmd)
#:use-module (gnu system grub)
#:use-module (gnu system shadow)
#:use-module (gnu system linux)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (operating-system
operating-system?
operating-system-services
operating-system-packages
operating-system-derivation))
;;; Commentary:
;;;
;;; This module supports whole-system configuration.
;;;
;;; Code:
;; System-wide configuration.
;; TODO: Add per-field docstrings/stexi.
(define-record-type* <operating-system> operating-system
make-operating-system
operating-system?
(kernel operating-system-kernel ; package
(default linux-libre))
(bootloader operating-system-bootloader ; package
(default grub))
(bootloader-entries operating-system-bootloader-entries ; list
(default '()))
(initrd operating-system-initrd
(default gnu-system-initrd))
(host-name operating-system-host-name) ; string
(file-systems operating-system-file-systems ; list of fs
(default '()))
(users operating-system-users ; list of user accounts
(default '()))
(groups operating-system-groups ; list of user groups
(default (list (user-group
(name "root")
(id 0))
(user-group
(name "users")
(id 100)
(members '("guest"))))))
(packages operating-system-packages ; list of (PACKAGE OUTPUT...)
(default `(("coreutils" ,coreutils)
("grep" ,grep)
("guile" ,guile)
("bash" ,bash)
("dmd" ,(@ (gnu packages dmd) dmd))
("guix" ,guix))))
(timezone operating-system-timezone) ; string
(locale operating-system-locale) ; string
(services operating-system-services ; list of monadic services
(default
(let ((motd (text-file "motd" "
This is the GNU operating system, welcome!\n\n")))
(list (mingetty-service "tty1" #:motd motd)
(mingetty-service "tty2" #:motd motd)
(mingetty-service "tty3" #:motd motd)
(mingetty-service "tty4" #:motd motd)
(mingetty-service "tty5" #:motd motd)
(mingetty-service "tty6" #:motd motd)
(syslog-service)
(guix-service)
(nscd-service)
;; QEMU networking settings.
(static-networking-service "eth0" "10.0.2.10"
#:name-servers '("10.0.2.3")
#:gateway "10.0.2.2"))))))
;;;
;;; Derivation.
;;;
(define* (union inputs
#:key (guile (%guile-for-build)) (system (%current-system))
(name "union"))
"Return a derivation that builds the union of INPUTS. INPUTS is a list of
input tuples."
(define builder
'(begin
(use-modules (guix build union))
(setvbuf (current-output-port) _IOLBF)
(setvbuf (current-error-port) _IOLBF)
(let ((output (assoc-ref %outputs "out"))
(inputs (map cdr %build-inputs)))
(format #t "building union `~a' with ~a packages...~%"
output (length inputs))
(union-build output inputs))))
(mlet %store-monad
((inputs (sequence %store-monad
(map (match-lambda
((name (? package? p))
(mlet %store-monad
((drv (package->derivation p system)))
(return `(,name ,drv))))
((name (? package? p) output)
(mlet %store-monad
((drv (package->derivation p system)))
(return `(,name ,drv ,output))))
(x
(return x)))
inputs))))
(derivation-expression name builder
#:system system
#:inputs inputs
#:modules '((guix build union))
#:guile-for-build guile)))
(define* (file-union files
#:key (inputs '()) (name "file-union"))
"Return a derivation that builds a directory containing all of FILES. Each
item in FILES must be a list where the first element is the file name to use
in the new directory, and the second element is the target file.
The subset of FILES corresponding to plain store files is automatically added
as an inputs; additional inputs, such as derivations, are taken from INPUTS."
(mlet %store-monad ((inputs (lower-inputs inputs)))
(let* ((outputs (append-map (match-lambda
((_ (? derivation? drv))
(list (derivation->output-path drv)))
((_ (? derivation? drv) sub-drv ...)
(map (cut derivation->output-path drv <>)
sub-drv))
(_ '()))
inputs))
(inputs (append inputs
(filter (match-lambda
((_ file)
;; Elements of FILES that are store
;; files and that do not correspond to
;; the output of INPUTS are considered
;; inputs (still here?).
(and (direct-store-path? file)
(not (member file outputs)))))
files))))
(derivation-expression name
`(let ((out (assoc-ref %outputs "out")))
(mkdir out)
(chdir out)
,@(map (match-lambda
((name target)
`(symlink ,target ,name)))
files))
#:inputs inputs))))
(define (links inputs)
"Return a directory with symbolic links to all of INPUTS. This is
essentially useful when one wants to keep references to all of INPUTS, be they
directories or regular files."
(define builder
'(begin
(use-modules (srfi srfi-1))
(let ((out (assoc-ref %outputs "out")))
(mkdir out)
(chdir out)
(fold (lambda (file number)
(symlink file (number->string number))
(+ 1 number))
0
(map cdr %build-inputs))
#t)))
(mlet %store-monad ((inputs (lower-inputs inputs)))
(derivation-expression "links" builder
#:inputs inputs)))
(define* (etc-directory #:key
(accounts '())
(groups '())
(pam-services '())
(profile "/var/run/current-system/profile"))
"Return a derivation that builds the static part of the /etc directory."
(mlet* %store-monad
((services (package-file net-base "etc/services"))
(protocols (package-file net-base "etc/protocols"))
(rpc (package-file net-base "etc/rpc"))
(passwd (passwd-file accounts))
(shadow (passwd-file accounts #:shadow? #t))
(group (group-file groups))
(pam.d (pam-services->directory pam-services))
(login.defs (text-file "login.defs" "# Empty for now.\n"))
(issue (text-file "issue" "
This is an alpha preview of the GNU system. Welcome.
This image features the GNU Guix package manager, which was used to
build it (http://www.gnu.org/software/guix/). The init system is
GNU dmd (http://www.gnu.org/software/dmd/).
You can log in as 'guest' or 'root' with no password.
"))
;; TODO: Generate bashrc from packages' search-paths.
(bashrc (text-file "bashrc" (string-append "
export PS1='\\u@\\h\\$ '
export PATH=$HOME/.guix-profile/bin:" profile "/bin:" profile "/sbin
export CPATH=$HOME/.guix-profile/include:" profile "/include
export LIBRARY_PATH=$HOME/.guix-profile/lib:" profile "/lib
alias ls='ls -p --color'
alias ll='ls -l'
")))
(files -> `(("services" ,services)
("protocols" ,protocols)
("rpc" ,rpc)
("pam.d" ,(derivation->output-path pam.d))
("login.defs" ,login.defs)
("issue" ,issue)
("profile" ,bashrc)
("passwd" ,passwd)
("shadow" ,shadow)
("group" ,group))))
(file-union files
#:inputs `(("net" ,net-base)
("pam.d" ,pam.d))
#:name "etc")))
(define (operating-system-derivation os)
"Return a derivation that builds OS."
(mlet* %store-monad
((services (sequence %store-monad
(cons (host-name-service
(operating-system-host-name os))
(operating-system-services os))))
(pam-services ->
;; Services known to PAM.
(delete-duplicates
(cons %pam-other-services
(append-map service-pam-services services))))
(bash-file (package-file bash "bin/bash"))
(dmd-file (package-file (@ (gnu packages system) dmd) "bin/dmd"))
(accounts -> (cons (user-account
(name "root")
(password "")
(uid 0) (gid 0)
(comment "System administrator")
(home-directory "/")
(shell bash-file))
(append (operating-system-users os)
(append-map service-user-accounts
services))))
(groups -> (append (operating-system-groups os)
(append-map service-user-groups services)))
(packages -> (operating-system-packages os))
;; TODO: Replace with a real profile with a manifest.
(profile-drv (union packages
#:name "default-profile"))
(profile -> (derivation->output-path profile-drv))
(etc-drv (etc-directory #:accounts accounts #:groups groups
#:pam-services pam-services
#:profile profile))
(etc -> (derivation->output-path etc-drv))
(dmd-conf (dmd-configuration-file services etc))
(boot (text-file "boot"
(object->string
`(execl ,dmd-file "dmd"
"--config" ,dmd-conf))))
(kernel -> (operating-system-kernel os))
(kernel-dir (package-file kernel))
(initrd -> (operating-system-initrd os))
(initrd-file (package-file initrd))
(entries -> (list (menu-entry
(label (string-append
"GNU system with "
(package-full-name kernel)
" (technology preview)"))
(linux kernel)
(linux-arguments `("--root=/dev/vda1"
,(string-append "--load=" boot)))
(initrd initrd))))
(grub.cfg (grub-configuration-file entries))
(extras (links (delete-duplicates
(append-map service-inputs services)))))
(file-union `(("boot" ,boot)
("kernel" ,kernel-dir)
("initrd" ,initrd-file)
("dmd.conf" ,dmd-conf)
("bash" ,bash-file) ; XXX: should be a <user-account> input?
("profile" ,profile)
("grub.cfg" ,grub.cfg)
("etc" ,etc)
("service-inputs" ,(derivation->output-path extras)))
#:inputs `(("kernel" ,kernel)
("initrd" ,initrd)
("bash" ,bash)
("profile" ,profile-drv)
("etc" ,etc-drv)
("service-inputs" ,extras))
#:name "system")))
;;; system.scm ends here

14
gnu/system/grub.scm
View file

@ -56,12 +56,11 @@ (define (prologue kernel)
default-entry timeout kernel))
(define (bzImage)
(anym %store-monad
(match-lambda
(($ <menu-entry> _ linux)
(package-file linux "bzImage"
#:system system)))
entries))
(any (match-lambda
(($ <menu-entry> _ linux)
(package-file linux "bzImage"
#:system system)))
entries))
(define entry->text
(match-lambda
@ -79,7 +78,8 @@ (define entry->text
linux (string-join arguments) initrd))))))
(mlet %store-monad ((kernel (bzImage))
(body (mapm %store-monad entry->text entries)))
(body (sequence %store-monad
(map entry->text entries))))
(text-file "grub.cfg"
(string-append (prologue kernel)
(string-concatenate body)))))

299
gnu/system/vm.scm
View file

@ -43,6 +43,7 @@ (define-module (gnu system vm)
#:use-module (gnu system linux)
#:use-module (gnu system grub)
#:use-module (gnu system dmd)
#:use-module (gnu system)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
@ -59,21 +60,6 @@ (define-module (gnu system vm)
;;;
;;; Code:
(define (lower-inputs inputs)
"Turn any package from INPUTS into a derivation; return the corresponding
input list as a monadic value."
(with-monad %store-monad
(sequence %store-monad
(map (match-lambda
((name (? package? package) sub-drv ...)
(mlet %store-monad ((drv (package->derivation package)))
(return `(,name ,drv ,@sub-drv))))
((name (? string? file))
(return `(,name ,file)))
(tuple
(return tuple)))
inputs))))
(define* (expression->derivation-in-linux-vm name exp
#:key
(system (%current-system))
@ -217,7 +203,7 @@ (define* (qemu-image #:key
(inputs-to-copy '()))
"Return a bootable, stand-alone QEMU image. The returned image is a full
disk image, with a GRUB installation that uses GRUB-CONFIGURATION as its
configuration file.
configuration file (GRUB-CONFIGURATION must be the name of a file in the VM.)
INPUTS-TO-COPY is a list of inputs (as for packages) whose closure is copied
into the image being built. When INITIALIZE-STORE? is true, initialize the
@ -262,7 +248,7 @@ (define (input->name+derivation tuple)
"/sbin/grub-install"))
(umount (string-append (assoc-ref %build-inputs "util-linux")
"/bin/umount")) ; XXX: add to Guile
(grub.cfg (assoc-ref %build-inputs "grub.cfg")))
(grub.cfg ,grub-configuration))
(define (read-reference-graph port)
;; Return a list of store paths from the reference graph at PORT.
@ -324,7 +310,7 @@ (define (graph-from-file file)
(copy-recursively thing
(string-append "/fs"
thing)))
(cons grub.cfg (things-to-copy)))
(things-to-copy))
;; Populate /dev.
(make-essential-device-nodes #:root "/fs")
@ -394,7 +380,6 @@ (define (graph-from-file file)
#:inputs `(("parted" ,parted)
("grub" ,grub)
("e2fsprogs" ,e2fsprogs)
("grub.cfg" ,grub-configuration)
;; For shell scripts.
("sed" ,(car (assoc-ref %final-inputs "sed")))
@ -420,255 +405,63 @@ (define (graph-from-file file)
;;; Stand-alone VM image.
;;;
(define* (union inputs
#:key (guile (%guile-for-build)) (system (%current-system))
(name "union"))
"Return a derivation that builds the union of INPUTS. INPUTS is a list of
input tuples."
(define builder
'(begin
(use-modules (guix build union))
(define %demo-operating-system
(operating-system
(host-name "gnu")
(timezone "Europe/Paris")
(locale "C.UTF-8")
(users (list (user-account
(name "guest")
(password "")
(uid 1000) (gid 100)
(comment "Guest of GNU")
(home-directory "/home/guest")
;; (shell bash-file)
)))
(packages `(("coreutils" ,coreutils)
("bash" ,bash)
("guile" ,guile-2.0)
("dmd" ,dmd)
("gcc" ,gcc-final)
("libc" ,glibc-final)
("inetutils" ,inetutils)
("findutils" ,findutils)
("grep" ,grep)
("sed" ,sed)
("procps" ,procps)
("psmisc" ,psmisc)
("zile" ,zile)
("guix" ,guix)))))
(setvbuf (current-output-port) _IOLBF)
(setvbuf (current-error-port) _IOLBF)
(let ((output (assoc-ref %outputs "out"))
(inputs (map cdr %build-inputs)))
(format #t "building union `~a' with ~a packages...~%"
output (length inputs))
(union-build output inputs))))
(mlet %store-monad
((inputs (sequence %store-monad
(map (match-lambda
((name (? package? p))
(mlet %store-monad
((drv (package->derivation p system)))
(return `(,name ,drv))))
((name (? package? p) output)
(mlet %store-monad
((drv (package->derivation p system)))
(return `(,name ,drv ,output))))
(x
(return x)))
inputs))))
(derivation-expression name builder
#:system system
#:inputs inputs
#:modules '((guix build union))
#:guile-for-build guile)))
(define* (file-union files
#:key (inputs '()) (name "file-union"))
"Return a derivation that builds a directory containing all of FILES. Each
item in FILES must be a list where the first element is the file name to use
in the new directory, and the second element is the target file.
The subset of FILES corresponding to plain store files is automatically added
as an inputs; additional inputs, such as derivations, are taken from INPUTS."
(mlet %store-monad ((inputs (lower-inputs inputs)))
(let* ((outputs (append-map (match-lambda
((_ (? derivation? drv))
(list (derivation->output-path drv)))
((_ (? derivation? drv) sub-drv ...)
(map (cut derivation->output-path drv <>)
sub-drv))
(_ '()))
inputs))
(inputs (append inputs
(filter (match-lambda
((_ file)
;; Elements of FILES that are store
;; files and that do not correspond to
;; the output of INPUTS are considered
;; inputs (still here?).
(and (direct-store-path? file)
(not (member file outputs)))))
files))))
(derivation-expression name
`(let ((out (assoc-ref %outputs "out")))
(mkdir out)
(chdir out)
,@(map (match-lambda
((name target)
`(symlink ,target ,name)))
files))
#:inputs inputs))))
(define* (etc-directory #:key
(accounts '())
(groups '())
(pam-services '())
(profile "/var/run/current-system/profile"))
"Return a derivation that builds the static part of the /etc directory."
(mlet* %store-monad
((services (package-file net-base "etc/services"))
(protocols (package-file net-base "etc/protocols"))
(rpc (package-file net-base "etc/rpc"))
(passwd (passwd-file accounts))
(shadow (passwd-file accounts #:shadow? #t))
(group (group-file groups))
(pam.d (pam-services->directory pam-services))
(login.defs (text-file "login.defs" "# Empty for now.\n"))
(issue (text-file "issue" "
This is an alpha preview of the GNU system. Welcome.
This image features the GNU Guix package manager, which was used to
build it (http://www.gnu.org/software/guix/). The init system is
GNU dmd (http://www.gnu.org/software/dmd/).
You can log in as 'guest' or 'root' with no password.
"))
;; TODO: Generate bashrc from packages' search-paths.
(bashrc (text-file "bashrc" (string-append "
export PS1='\\u@\\h\\$ '
export PATH=$HOME/.guix-profile/bin:" profile "/bin:" profile "/sbin
export CPATH=$HOME/.guix-profile/include:" profile "/include
export LIBRARY_PATH=$HOME/.guix-profile/lib:" profile "/lib
alias ls='ls -p --color'
alias ll='ls -l'
")))
(files -> `(("services" ,services)
("protocols" ,protocols)
("rpc" ,rpc)
("pam.d" ,(derivation->output-path pam.d))
("login.defs" ,login.defs)
("issue" ,issue)
("profile" ,bashrc)
("passwd" ,passwd)
("shadow" ,shadow)
("group" ,group))))
(file-union files
#:inputs `(("net" ,net-base)
("pam.d" ,pam.d))
#:name "etc")))
(define (system-qemu-image)
(define* (system-qemu-image #:optional (os %demo-operating-system))
"Return the derivation of a QEMU image of the GNU system."
(mlet* %store-monad
((services (listm %store-monad
(host-name-service "gnu")
(mingetty-service "tty1")
(mingetty-service "tty2")
(mingetty-service "tty3")
(mingetty-service "tty4")
(mingetty-service "tty5")
(mingetty-service "tty6")
(syslog-service)
(guix-service)
(nscd-service)
;; QEMU networking settings.
(static-networking-service "eth0" "10.0.2.10"
#:name-servers '("10.0.2.3")
#:gateway "10.0.2.2")))
(motd (text-file "motd" "
Happy birthday, GNU! http://www.gnu.org/gnu30
"))
(pam-services ->
;; Services known to PAM.
(delete-duplicates
(cons %pam-other-services
(append-map service-pam-services services))))
(bash-file (package-file bash "bin/bash"))
(dmd-file (package-file dmd "bin/dmd"))
(accounts -> (cons* (user-account
(name "root")
(password "")
(uid 0) (gid 0)
(comment "System administrator")
(home-directory "/")
(shell bash-file))
(user-account
(name "guest")
(password "")
(uid 1000) (gid 100)
(comment "Guest of GNU")
(home-directory "/home/guest")
(shell bash-file))
(append-map service-user-accounts
services)))
(groups -> (cons* (user-group
(name "root")
(id 0))
(user-group
(name "users")
(id 100)
(members '("guest")))
(append-map service-user-groups services)))
(build-user-gid -> (any (lambda (service)
(and (equal? '(guix-daemon)
(service-provision service))
(match (service-user-groups service)
((group)
(user-group-id group)))))
services))
(packages -> `(("coreutils" ,coreutils)
("bash" ,bash)
("guile" ,guile-2.0)
("dmd" ,dmd)
("gcc" ,gcc-final)
("libc" ,glibc-final)
("inetutils" ,inetutils)
("findutils" ,findutils)
("grep" ,grep)
("sed" ,sed)
("procps" ,procps)
("psmisc" ,psmisc)
("zile" ,zile)
("guix" ,guix)))
;; TODO: Replace with a real profile with a manifest.
(profile-drv (union packages
#:name "default-profile"))
(profile -> (derivation->output-path profile-drv))
(etc-drv (etc-directory #:accounts accounts #:groups groups
#:pam-services pam-services
#:profile profile))
(etc -> (derivation->output-path etc-drv))
(dmd-conf (dmd-configuration-file services etc))
((os-drv (operating-system-derivation os))
(os-dir -> (derivation->output-path os-drv))
(grub.cfg -> (string-append os-dir "/grub.cfg"))
(build-user-gid (anym %store-monad ; XXX
(lambda (service)
(and (equal? '(guix-daemon)
(service-provision service))
(match (service-user-groups service)
((group)
(user-group-id group)))))
(operating-system-services os)))
(populate -> `((directory "/nix/store" 0 ,build-user-gid)
(directory "/etc")
(directory "/var/log") ; for dmd
(directory "/var/run/nscd")
(directory "/var/nix/gcroots")
("/var/nix/gcroots/default-profile" -> ,profile)
("/var/nix/gcroots/system" -> ,os-dir)
(directory "/tmp")
(directory "/var/nix/profiles/per-user/root" 0 0)
(directory "/var/nix/profiles/per-user/guest"
1000 100)
(directory "/home/guest" 1000 100)))
(boot (text-file "boot" (object->string
`(execl ,dmd-file "dmd"
"--config" ,dmd-conf))))
(entries -> (list (return (menu-entry
(label (string-append
"GNU system with Linux-Libre "
(package-version linux-libre)
" (technology preview)"))
(linux linux-libre)
(linux-arguments `("--root=/dev/vda1"
,(string-append "--load=" boot)))
(initrd gnu-system-initrd)))))
(grub.cfg (grub-configuration-file entries)))
(directory "/home/guest" 1000 100))))
(qemu-image #:grub-configuration grub.cfg
#:populate populate
#:disk-image-size (* 550 (expt 2 20))
#:initialize-store? #t
#:inputs-to-copy `(("boot" ,boot)
("linux" ,linux-libre)
("initrd" ,gnu-system-initrd)
("dmd.conf" ,dmd-conf)
("profile" ,profile-drv)
("etc" ,etc-drv)
,@(append-map service-inputs
services)))))
#:inputs-to-copy `(("system" ,os-drv)))))
;;; vm.scm ends here

19
guix/monads.scm
View file

@ -56,7 +56,8 @@ (define-module (guix monads)
package-file
package->derivation
built-derivations
derivation-expression))
derivation-expression
lower-inputs))
;;; Commentary:
;;;
@ -319,6 +320,22 @@ (define* (package-file package
(string-append out "/" file)
out))))
(define (lower-inputs inputs)
"Turn any package from INPUTS into a derivation; return the corresponding
input list as a monadic value."
;; XXX: Should probably be in (guix packages).
(with-monad %store-monad
(sequence %store-monad
(map (match-lambda
((name (? package? package) sub-drv ...)
(mlet %store-monad ((drv (package->derivation package)))
(return `(,name ,drv ,@sub-drv))))
((name (? string? file))
(return `(,name ,file)))
(tuple
(return tuple)))
inputs))))
(define derivation-expression
(store-lift build-expression->derivation))