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2021-12-23Remove VM generation dead-code.Mathieu Othacehe
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.
2017-05-25modules: Raise an error when a dependency could not be found.Ludovic Courtès
* guix/modules.scm (&missing-dependency-error): New error condition. (source-module-dependencies): Raise it when 'search-path' returns #f. * tests/modules.scm ("&missing-dependency-error"): New test.
2016-09-05Add (guix modules).Ludovic Courtès
* guix/modules.scm, tests/modules.scm: New files. * Makefile.am (MODULES, SCM_TESTS): Add them. * doc/guix.texi (G-Expressions): Add an example of 'source-module-closure'.