Add basic Kconfig support for lima-guestagent

.gitignore

@@ -1,3 +1,4 @@
 _output/
 _artifacts/
 lima.REJECTED.yaml
+.config

Kconfig

@@ -0,0 +1,32 @@
+
+mainmenu "Lima"
+
+config GUESTAGENT_OS_LINUX
+	bool "guestagent OS: Linux"
+	help
+		Build lima-guestagent for "Linux" OS
+	default y
+
+config GUESTAGENT_ARCH_X8664
+	bool "guestagent Arch: x86_64"
+	help
+		Build lima-guestagent for "x86_64" Arch
+	default y
+
+config GUESTAGENT_ARCH_AARCH64
+	bool "guestagent Arch: aarch64"
+	help
+		Build lima-guestagent for "aarch64" Arch
+	default y
+
+config GUESTAGENT_ARCH_ARMV7L
+	bool "guestagent Arch: armv7l"
+	help
+		Build lima-guestagent for "armv7l" Arch
+	default y
+
+config GUESTAGENT_ARCH_RISCV64
+	bool "guestagent Arch: riscv64"
+	help
+		Build lima-guestagent for "riscv64" Arch
+	default y

Makefile

@@ -7,6 +7,11 @@ TAR ?= tar
 ZIP ?= zip
 PLANTUML ?= plantuml # may also be "java -jar plantuml.jar" if installed elsewhere
 
+# The KCONFIG programs are only needed for re-generating the ".config" file.
+# You can install the python "kconfiglib", if you don't have kconfig/kbuild.
+KCONFIG_CONF ?= $(shell command -v kconfig-conf || command -v kbuild-conf || echo oldconfig)
+KCONFIG_MCONF ?= $(shell command -v kconfig-mconf || command -v kbuild-mconf || echo menuconfig)
+
 GOOS ?= $(shell $(GO) env GOOS)
 ifeq ($(GOOS),windows)
 bat = .bat
@@ -45,6 +50,11 @@ GO_BUILD := $(GO) build -ldflags="-s -w -X $(PACKAGE)/pkg/version.Version=$(VERS
 .PHONY: all
 all: binaries manpages
 
+.PHONY: help
+help:
+	@echo  '  binaries        - Build all binaries'
+	@echo  '  manpages        - Build manual pages'
+
 exe: _output/bin/limactl$(exe)
 
 .PHONY: minimal
@@ -55,21 +65,54 @@ minimal: clean \
 	mkdir -p _output/share/lima/templates
 	cp -aL examples/default.yaml _output/share/lima/templates/
 
+config: Kconfig
+	$(KCONFIG_CONF) $<
+
+menuconfig: Kconfig
+	MENUCONFIG_STYLE=aquatic \
+	$(KCONFIG_MCONF) $<
+
+# Copy the default config, if not overridden locally
+# This is done to avoid a dependency on KCONFIG tools
+.config: config.mk
+	cp $^ $@
+
+-include .config
+
+HELPERS = \
+	_output/bin/nerdctl.lima \
+	_output/bin/apptainer.lima \
+	_output/bin/docker.lima \
+	_output/bin/podman.lima \
+	_output/bin/kubectl.lima
+
+ifeq ($(CONFIG_GUESTAGENT_OS_LINUX),y)
+ifeq ($(CONFIG_GUESTAGENT_ARCH_X8664),y)
+GUESTAGENT += \
+	_output/share/lima/lima-guestagent.Linux-x86_64
+endif
+ifeq ($(CONFIG_GUESTAGENT_ARCH_AARCH64),y)
+GUESTAGENT += \
+	_output/share/lima/lima-guestagent.Linux-aarch64
+endif
+ifeq ($(CONFIG_GUESTAGENT_ARCH_ARMV7L),y)
+GUESTAGENT += \
+	_output/share/lima/lima-guestagent.Linux-armv7l
+endif
+ifeq ($(CONFIG_GUESTAGENT_ARCH_RISCV64),y)
+GUESTAGENT += \
+	_output/share/lima/lima-guestagent.Linux-riscv64
+endif
+endif
+
 .PHONY: binaries
 binaries: clean \
 	_output/bin/lima \
 	_output/bin/lima$(bat) \
 	_output/bin/limactl$(exe) \
 	codesign \
-	_output/bin/nerdctl.lima \
-	_output/bin/apptainer.lima \
-	_output/bin/docker.lima \
-	_output/bin/podman.lima \
-	_output/bin/kubectl.lima \
-	_output/share/lima/lima-guestagent.Linux-x86_64 \
-	_output/share/lima/lima-guestagent.Linux-aarch64 \
-	_output/share/lima/lima-guestagent.Linux-armv7l \
-	_output/share/lima/lima-guestagent.Linux-riscv64
+	$(HELPERS) \
+	$(GUESTAGENT)
 	cp -aL examples _output/share/lima/templates
 ifneq ($(GOOS),windows)
 	ln -sf templates _output/share/lima/examples

config.mk

@@ -0,0 +1,5 @@
+CONFIG_GUESTAGENT_OS_LINUX=y
+CONFIG_GUESTAGENT_ARCH_X8664=y
+CONFIG_GUESTAGENT_ARCH_AARCH64=y
+CONFIG_GUESTAGENT_ARCH_ARMV7L=y
+CONFIG_GUESTAGENT_ARCH_RISCV64=y

website/content/en/docs/Installation/_index.md

@@ -56,5 +56,18 @@ cd lima
 make
 make install
 ```
+
+To change the build configuration, run `make config` or `make menuconfig`.
+
+This requires kconfig tools installed, it is also possible to edit `.config`.
+The default configuration can be found in the file `config.mk` (make syntax).
+
+## Kconfig tools
+
+The tools are available as either "kconfig-frontends" or "kbuild-standalone".
+There is one `conf` for the text, and one `mconf` for the menu interface.
+
+A python implementation is available at <https://pypi.org/project/kconfiglib>.
+It can be installed with `pip install --user kconfiglib`, including `guiconfig`.
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