install2: introduced +installer mixin

This one is a part of a larger rewrite to move away from
distro-centric build-up to configuration-centric one with
the particular packaging being of secondary importance
compared to actual functionality.

conf.d/test.mk

@@ -32,6 +32,10 @@ distro/server-systemd: distro/server-mini use/systemd
 distro/server-test: distro/server-mini use/relname
 	@$(call set,RELNAME,Test-Server)
 
+# something marginally useful (as a network-only installer)
+# NB: doesn't carry stage3 thus cannot use/bootloader
+distro/netinst: distro/.base use/install2/net; @:
+
 # tiny network-only server-ovz installer (stage2 comes over net too)
 distro/server-ovz-netinst: distro/.base sub/stage1 use/stage2 \
 	use/syslinux/ui/menu use/syslinux/localboot.cfg use/memtest

features.in/install2/README

@@ -2,6 +2,9 @@
 специфическими для инсталяционного образа настройками
 и скриптовыми хуками.
 
+Рекомендуется подключать при помощи +installer, чтобы обеспечить
+включение типового набора связанных с инсталятором функций.
+
 При добавлении скриптов в image-scripts.d/ следует позаботиться,
 чтобы в компактном livecd, которым является инсталятор, оказались
 нужные им утилиты (INSTALL2_PACKAGES).  Перегружать его не следует,

features.in/install2/config.mk

@@ -1,16 +1,28 @@
 # alterator-based installer, second (livecd) stage
+
++installer: use/install2/full; @:
+
 use/install2: use/stage2 sub/stage2@install2 use/metadata use/cleanup/installer
 	@$(call add_feature)
+	@$(call try,INSTALLER,altlinux-generic)	# might be replaced later
 	@$(call set,INSTALL2_PACKAGES,installer-distro-$$(INSTALLER)-stage2)
 	@$(call add,INSTALL2_PACKAGES,branding-$$(BRANDING)-alterator)
 	@$(call add,BASE_PACKAGES,branding-$$(BRANDING)-release)
 	@$(call add,BASE_LISTS,$(call tags,basesystem))
 	@$(call xport,BASE_BOOTLOADER)
 
+# doesn't use/install2/fs on purpose (at least so far)
+use/install2/full: use/install2/packages use/install2/kms use/install2/kvm \
+	use/syslinux/localboot.cfg use/syslinux/ui/menu; @:
+
+# stash local packages within installation media
+use/install2/packages: use/install2 use/repo/main; @:
+
+# for alterator-pkg to use
 use/install2/net: use/install2
 	@$(call add,INSTALL2_PACKAGES,curl)
 
-# modern free xorg drivers for mainstream hardware requires KMS support
+# modern free xorg drivers for mainstream hardware require KMS support
 use/install2/kms: use/stage2/kms
 	@$(call add,BASE_KMODULES_REGEXP,drm.*)
 

features.in/install2/install2/stage2cfg.mk

@@ -1,5 +1,9 @@
 # stage2 mod: build install2 subprofile (installer "live" part)
 
+ifndef INSTALLER
+$(error install2 feature enabled but INSTALLER undefined)
+endif
+
 IMAGE_PACKAGES = $(INSTALL2_PACKAGES) \
 		 udev e2fsprogs glibc-nss
 

lib/distro.mk

@@ -28,12 +28,7 @@ distro/.base: distro/.init use/kernel
 	@$(call set,META_VOL_ID,ALT Linux $(IMAGE_NAME)/$(ARCH))
 	@$(call set,META_VOL_SET,ALT Linux)
 
-# something marginally useful (as a network-only installer)
+# this one should not be fundamental as it appears (think armh)
-# NB: doesn't carry stage3 thus cannot use/bootloader
+distro/.installer: distro/.base use/bootloader/grub +installer; @:
-distro/installer: distro/.base use/syslinux/localboot.cfg \
-	use/install2 use/install2/kms use/firmware use/install2/kvm
-	@$(call set,INSTALLER,altlinux-generic)
-
-distro/.installer: distro/installer use/bootloader/grub use/repo/main; @:
 
 endif