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gnu: Use 'gexp->file' in conjunction with 'with-imported-modules'.
* gnu/services.scm (activation-script): Remove code to set '%load-path' and use 'with-imported-modules' instead. (cleanup-gexp): Likewise. * gnu/system/vm.scm (%vm-module-closure): New variable. (expression->derivation-in-linux-vm): Remove #:modules. [loader]: Remove code to set '%load-path'. [builder]: Use %VM-MODULE-CLOSURE. (qemu-image): Use 'with-imported-modules'.
This commit is contained in:
Ludovic Courtès
parent
2b4185792d
commit
fd12989398
2 changed files with 92 additions and 114 deletions
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@ -238,42 +238,33 @@ (define %boot-service
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(define (cleanup-gexp _)
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"Return as a monadic value a gexp to clean up /tmp and similar places upon
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boot."
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(define %modules
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'((guix build utils)))
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(with-monad %store-monad
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(with-imported-modules '((guix build utils))
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(return #~(begin
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(use-modules (guix build utils))
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(mlet %store-monad ((modules (imported-modules %modules))
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(compiled (compiled-modules %modules)))
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(return #~(begin
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(eval-when (expand load eval)
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;; Make sure 'use-modules' below succeeds.
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(set! %load-path (cons #$modules %load-path))
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(set! %load-compiled-path
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(cons #$compiled %load-compiled-path)))
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(use-modules (guix build utils))
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;; Clean out /tmp and /var/run.
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;;
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;; XXX This needs to happen before service activations, so it
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;; has to be here, but this also implicitly assumes that /tmp
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;; and /var/run are on the root partition.
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(letrec-syntax ((fail-safe (syntax-rules ()
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((_ exp rest ...)
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(begin
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(catch 'system-error
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(lambda () exp)
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(const #f))
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(fail-safe rest ...)))
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((_)
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#t))))
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;; Ignore I/O errors so the system can boot.
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(fail-safe
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(delete-file-recursively "/tmp")
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(delete-file-recursively "/var/run")
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(mkdir "/tmp")
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(chmod "/tmp" #o1777)
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(mkdir "/var/run")
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(chmod "/var/run" #o755)))))))
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;; Clean out /tmp and /var/run.
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;;
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;; XXX This needs to happen before service activations, so it
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;; has to be here, but this also implicitly assumes that /tmp
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;; and /var/run are on the root partition.
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(letrec-syntax ((fail-safe (syntax-rules ()
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((_ exp rest ...)
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(begin
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(catch 'system-error
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(lambda () exp)
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(const #f))
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(fail-safe rest ...)))
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((_)
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#t))))
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;; Ignore I/O errors so the system can boot.
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(fail-safe
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(delete-file-recursively "/tmp")
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(delete-file-recursively "/var/run")
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(mkdir "/tmp")
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(chmod "/tmp" #o1777)
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(mkdir "/var/run")
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(chmod "/var/run" #o755))))))))
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(define cleanup-service-type
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;; Service that cleans things up in /tmp and similar.
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@ -337,29 +328,22 @@ (define (service-activations)
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(cut gexp->file "activate-service" <>)
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gexps))
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(mlet* %store-monad ((actions (service-activations))
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(modules (imported-modules %modules))
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(compiled (compiled-modules %modules)))
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(mlet* %store-monad ((actions (service-activations)))
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(gexp->file "activate"
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#~(begin
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(eval-when (expand load eval)
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;; Make sure 'use-modules' below succeeds.
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(set! %load-path (cons #$modules %load-path))
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(set! %load-compiled-path
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(cons #$compiled %load-compiled-path)))
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(with-imported-modules %modules
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#~(begin
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(use-modules (gnu build activation))
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(use-modules (gnu build activation))
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;; Make sure /bin/sh is valid and current.
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(activate-/bin/sh
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(string-append #$(canonical-package bash) "/bin/sh"))
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;; Make sure /bin/sh is valid and current.
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(activate-/bin/sh
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(string-append #$(canonical-package bash) "/bin/sh"))
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;; Run the services' activation snippets.
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;; TODO: Use 'load-compiled'.
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(for-each primitive-load '#$actions)
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;; Run the services' activation snippets.
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;; TODO: Use 'load-compiled'.
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(for-each primitive-load '#$actions)
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;; Set up /run/current-system.
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(activate-current-system)))))
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;; Set up /run/current-system.
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(activate-current-system))))))
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(define (gexps->activation-gexp gexps)
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"Return a gexp that runs the activation script containing GEXPS."
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@ -90,6 +90,21 @@ (define %linux-vm-file-systems
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(options "trans=virtio")
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(check? #f))))
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(define %vm-module-closure
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;; The closure of (gnu build vm), roughly.
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;; FIXME: Compute it automatically.
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'((gnu build vm)
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(gnu build install)
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(gnu build linux-boot)
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(gnu build linux-modules)
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(gnu build file-systems)
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(guix elf)
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(guix records)
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(guix build utils)
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(guix build syscalls)
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(guix build bournish)
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(guix build store-copy)))
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(define* (expression->derivation-in-linux-vm name exp
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#:key
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(system (%current-system))
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@ -97,18 +112,6 @@ (define* (expression->derivation-in-linux-vm name exp
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initrd
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(qemu qemu-minimal)
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(env-vars '())
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(modules
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'((gnu build vm)
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(gnu build install)
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(gnu build linux-boot)
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(gnu build linux-modules)
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(gnu build file-systems)
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(guix elf)
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(guix records)
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(guix build utils)
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(guix build syscalls)
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(guix build bournish)
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(guix build store-copy)))
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(guile-for-build
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(%guile-for-build))
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@ -128,23 +131,13 @@ (define* (expression->derivation-in-linux-vm name exp
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DISK-IMAGE-FORMAT (e.g., 'qcow2' or 'raw'), of DISK-IMAGE-SIZE bytes and
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return it.
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MODULES is the set of modules imported in the execution environment of EXP.
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When REFERENCES-GRAPHS is true, it must be a list of file name/store path
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pairs, as for `derivation'. The files containing the reference graphs are
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made available under the /xchg CIFS share."
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(mlet* %store-monad
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((module-dir (imported-modules modules))
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(compiled (compiled-modules modules))
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(user-builder (gexp->file "builder-in-linux-vm" exp))
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((user-builder (gexp->file "builder-in-linux-vm" exp))
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(loader (gexp->file "linux-vm-loader"
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#~(begin
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(set! %load-path
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(cons #$module-dir %load-path))
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(set! %load-compiled-path
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(cons #$compiled
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%load-compiled-path))
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(primitive-load #$user-builder))))
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#~(primitive-load #$user-builder)))
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(coreutils -> (canonical-package coreutils))
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(initrd (if initrd ; use the default initrd?
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(return initrd)
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@ -155,7 +148,7 @@ (define* (expression->derivation-in-linux-vm name exp
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(define builder
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;; Code that launches the VM that evaluates EXP.
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(with-imported-modules modules
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(with-imported-modules %vm-module-closure
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#~(begin
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(use-modules (guix build utils)
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(gnu build vm))
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@ -212,45 +205,46 @@ (define* (qemu-image #:key
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the image."
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(expression->derivation-in-linux-vm
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name
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#~(begin
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(use-modules (gnu build vm)
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(guix build utils))
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(with-imported-modules %vm-module-closure
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#~(begin
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(use-modules (gnu build vm)
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(guix build utils))
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(let ((inputs
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'#$(append (list qemu parted grub e2fsprogs)
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(map canonical-package
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(list sed grep coreutils findutils gawk))
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(if register-closures? (list guix) '())))
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(let ((inputs
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'#$(append (list qemu parted grub e2fsprogs)
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(map canonical-package
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(list sed grep coreutils findutils gawk))
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(if register-closures? (list guix) '())))
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;; This variable is unused but allows us to add INPUTS-TO-COPY
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;; as inputs.
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(to-register
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'#$(map (match-lambda
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((name thing) thing)
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((name thing output) `(,thing ,output)))
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inputs)))
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;; This variable is unused but allows us to add INPUTS-TO-COPY
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;; as inputs.
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(to-register
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'#$(map (match-lambda
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((name thing) thing)
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((name thing output) `(,thing ,output)))
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inputs)))
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(set-path-environment-variable "PATH" '("bin" "sbin") inputs)
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(set-path-environment-variable "PATH" '("bin" "sbin") inputs)
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(let* ((graphs '#$(match inputs
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(((names . _) ...)
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names)))
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(initialize (root-partition-initializer
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#:closures graphs
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#:copy-closures? #$copy-inputs?
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#:register-closures? #$register-closures?
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#:system-directory #$os-derivation))
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(partitions (list (partition
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(size #$(- disk-image-size
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(* 10 (expt 2 20))))
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(label #$file-system-label)
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(file-system #$file-system-type)
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(bootable? #t)
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(initializer initialize)))))
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(initialize-hard-disk "/dev/vda"
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#:partitions partitions
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#:grub.cfg #$grub-configuration)
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(reboot))))
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(let* ((graphs '#$(match inputs
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(((names . _) ...)
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names)))
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(initialize (root-partition-initializer
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#:closures graphs
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#:copy-closures? #$copy-inputs?
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#:register-closures? #$register-closures?
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#:system-directory #$os-derivation))
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(partitions (list (partition
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(size #$(- disk-image-size
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(* 10 (expt 2 20))))
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(label #$file-system-label)
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(file-system #$file-system-type)
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(bootable? #t)
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(initializer initialize)))))
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(initialize-hard-disk "/dev/vda"
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#:partitions partitions
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#:grub.cfg #$grub-configuration)
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(reboot)))))
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#:system system
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#:make-disk-image? #t
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#:disk-image-size disk-image-size
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