diff options
| -rw-r--r-- | gnu/build/vm.scm | 20 | ||||
| -rw-r--r-- | gnu/system/vm.scm | 13 |
2 files changed, 25 insertions, 8 deletions
diff --git a/gnu/build/vm.scm b/gnu/build/vm.scm index 14bd7851f2..727494ad93 100644 --- a/gnu/build/vm.scm +++ b/gnu/build/vm.scm @@ -76,11 +76,14 @@ (qemu (qemu-command)) (memory-size 512) linux initrd make-disk-image? + single-file-output? (disk-image-size (* 100 (expt 2 20))) (disk-image-format "qcow2") (references-graphs '())) "Run BUILDER, a Scheme file, into a VM running LINUX with INITRD, and copy -the result to OUTPUT. +the result to OUTPUT. If SINGLE-FILE-OUTPUT? is true, copy a single file from +/xchg to OUTPUT. Otherwise, copy the contents of /xchg to a new directory +OUTPUT. When MAKE-DISK-IMAGE? is true, OUTPUT will contain a VM image of DISK-IMAGE-SIZE bytes resulting from the execution of BUILDER, which may @@ -137,8 +140,17 @@ the #:references-graphs parameter of 'derivation'." ;; When MAKE-DISK-IMAGE? is true, the image is in OUTPUT already. (unless make-disk-image? - (mkdir output) - (copy-recursively "xchg" output))) + (if single-file-output? + (let ((graph? (lambda (name stat) + (member (basename name) references-graphs)))) + (match (find-files "xchg" (negate graph?)) + ((result) + (copy-file result output)) + (x + (error "did not find a single result file" x)))) + (begin + (mkdir output) + (copy-recursively "xchg" output))))) ;;; @@ -356,7 +368,7 @@ SYSTEM-DIRECTORY is the name of the directory of the 'system' derivation." (define* (make-iso9660-image grub config-file os-drv target #:key (volume-id "GuixSD_image") (volume-uuid #f)) "Given a GRUB package, creates an iso image as TARGET, using CONFIG-FILE as -Grub configuration and OS-DRV as the stuff in it." +GRUB configuration and OS-DRV as the stuff in it." (let ((grub-mkrescue (string-append grub "/bin/grub-mkrescue"))) (mkdir-p "/tmp/root/var/run") (mkdir-p "/tmp/root/run") diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm index 028649f80b..6f979aee43 100644 --- a/gnu/system/vm.scm +++ b/gnu/system/vm.scm @@ -105,16 +105,19 @@ (guile-for-build (%guile-for-build)) + (single-file-output? #f) (make-disk-image? #f) (references-graphs #f) (memory-size 256) (disk-image-format "qcow2") (disk-image-size 'guess)) "Evaluate EXP in a QEMU virtual machine running LINUX with INITRD (a -derivation). In the virtual machine, EXP has access to all its inputs from the -store; it should put its output files in the `/xchg' directory, which is -copied to the derivation's output when the VM terminates. The virtual machine -runs with MEMORY-SIZE MiB of memory. +derivation). The virtual machine runs with MEMORY-SIZE MiB of memory. In the +virtual machine, EXP has access to all its inputs from the store; it should +put its output file(s) in the '/xchg' directory. + +If SINGLE-FILE-OUTPUT? is true, copy a single file from '/xchg' to OUTPUT. +Otherwise, copy the contents of /xchg to a new directory OUTPUT. When MAKE-DISK-IMAGE? is true, then create a QEMU disk image of type DISK-IMAGE-FORMAT (e.g., 'qcow2' or 'raw'), of DISK-IMAGE-SIZE bytes and @@ -164,6 +167,7 @@ made available under the /xchg CIFS share." #:linux linux #:initrd initrd #:memory-size #$memory-size #:make-disk-image? #$make-disk-image? + #:single-file-output? #$single-file-output? #:disk-image-format #$disk-image-format #:disk-image-size size #:references-graphs graphs))))) @@ -219,6 +223,7 @@ INPUTS is a list of inputs (as for packages)." (reboot)))) #:system system #:make-disk-image? #f + #:single-file-output? #t #:references-graphs inputs)) (define* (qemu-image #:key |