This code duplicates the (gnu system image) and (gnu build image) code. Using
VM for image generation is not needed, not portable and really slow. Remove
all the VM image generation code to make sure that only the image API is used.
* gnu/build/vm.scm: Remove it. Move the qemu-command procedure to ...
* gnu/build/marionette.scm: ... here.
* gnu/local.mk (GNU_SYSTEM_MODULES): Adapt it.
* tests/modules.scm: Ditto.
* gnu/tests/install.scm: Ditto.
* gnu/system/vm.scm: Adapt it and remove expression->derivation-in-linux-vm,
qemu-img, system-qemu-image/shared-store and system-docker-image procedures.
* doc/guix.texi (G-Expressions): Adapt it.
* gnu/build/marionette.scm (%qwerty-us-keystrokes): Use shit-comma and
shift-dot for #\< and #\> because the "less" key doesn't work the same
in "US intl." layouts.
* gnu/build/marionette.scm (wait-for-tcp-port): New procedure.
* gnu/tests/dict.scm (run-dicod-test)["connect inside"]: Use it instead
of the inline loop.
* gnu/build/marionette.scm (wait-for-file): Add #:read parameter and
honor it.
* gnu/tests/base.scm (run-basic-test)["login on tty1"]: Use
'wait-for-file' instead of inline code.
Previously we'd use "sendkey P" instead of "sendkey shift-p", which had
no effect.
* gnu/build/marionette.scm (character->keystroke): New procedure.
(string->keystroke-commands): Use it.
* gnu/build/marionette.scm (wait-for-file): New procedure.
* gnu/tests/base.scm (run-mcron-test)[test](wait-for-file): Remove.
Pass second argument in 'wait-for-file' calls.
* gnu/tests/ssh.scm (run-ssh-test)[test](wait-for-file): Remove.
Pass second argument in 'wait-for-file' calls.
* gnu/tests/messaging.scm (run-xmpp-test)[test](guest-wait-for-file):
Remove.
Use 'wait-for-file' instead, with second argument.
This allows 'grub-install' to do the right thing when / or /boot is a
LUKS-encrypted partition.
Fixes <http://bugs.gnu.org/21843>.
* gnu/build/install.scm (install-grub): Add 'setenv' to set
'GRUB_ENABLE_CRYPTODISK'.
(wait-for-screen-text): New test.
* gnu/tests/base.scm (run-basic-test): Add #:initialization parameter
and honor it.
* gnu/tests/install.scm (%encrypted-root-os)[kernel-arguments]: Remove.
(%encrypted-root-installation-script): Pass '--uuid' to 'cryptsetup
luksFormat'. Remove 'sed' invocation.
(enter-luks-passphrase): New procedure.
(%test-encrypted-os)[value]: Pass #:initialization to 'run-basic-test'.
* gnu/build/marionette.scm (<marionette>)[marionette-repl]: Rename to...
[%marionette-repl]: ... this.
(marionette-repl): New macro.
(make-marionette): Wrap last 'read' call into 'delay', making the last
argument to 'marionette' a promise of a port.
(marionette-eval): Use 'force' in 'match' clause.
