actually useful vm/icewm

See http://www.opennet.ru/openforum/vsluhforumID3/86239.html#1
for a query that has led to this one; in particular,
- xdm dropped (won't log in root and there are no users yet);
- network is brought up and configured via DHCP by default;
- apt-get works out-of-box;
- default image size is twice the chroot size.

bin/tar2vm

@@ -1,4 +1,6 @@
 #!/bin/bash -e
+# usage:
+# tar2vm chroot.tar image.raw [size_in_bytes]
 
 . shell-error
 
@@ -27,7 +29,7 @@ IMG="$2"
 
 # image size in bytes (256M is a fallback)
 TARSIZE="$(stat -Lc %s "$TAR")"
-DEFSIZE="$((3 * $TARSIZE / 2))"
+DEFSIZE="$((2 * $TARSIZE))"
 DISKSIZE="${3:-${DEFSIZE:-268435456}}"
 # ...and in megabytes
 DISKSIZEM="$(($DISKSIZE / 1048576))"

conf.d/vm.mk

@@ -1,9 +1,9 @@
 # virtual machines
 ifeq (vm,$(IMAGE_CLASS))
 
-# NB: use/x11 employs some installer-feature packages
-vm/icewm: vm/bare use/cleanup/installer use/x11/xdm +icewm; @:
-
 vm/net: vm/bare use/vm-net/dhcp use/vm-ssh; @:
 
+# NB: use/x11 employs some installer-feature packages
+vm/icewm: vm/net use/cleanup/installer use/repo +icewm; @:
+
 endif

doc/params.txt

@@ -106,6 +106,11 @@
     - пусто (по умолчанию) либо строка (например, "alpha", "beta")
   + см. ../image.in/Makefile
 
+- VM_SIZE
+  + задаёт размер несжатого образа виртуальной машины в байтах
+  + значение: пусто (по умолчанию двойной размер чрута) или целое
+  + см. ../features.in/build-vm/lib/90-build-vm.mk, ../bin/tar2vm
+
 пример
 ~~~~~~
 make DEBUG=1 CLEAN=1 distro/syslinux.iso

features.in/repo/image-scripts.d/90-enable-repo

@@ -0,0 +1,20 @@
+#!/bin/sh
+# enable online repos if possible, just quit if anything's wrong
+
+repo_source='/etc/apt/sources.list.d/alt.list'
+host='http://ftp.altlinux.org'
+
+[ -s "$repo_source" ] || exit 0
+
+# regexps from alterator-pkg (via installer-feature-online-repo)
+prefix_re="[[:space:]]*rpm[[:space:]]\+\([^[:space:]]\+[[:space:]]\+\)\?"
+updates_re="${prefix_re}http:\/\/\([^[:space:]]\+\)[[:space:]]*"
+
+# architectures
+host_arch="$(rpm --eval '%_host_cpu')"
+[ "$host_arch" = "x86_64" ] && compat="x86_64-i586" || compat=
+
+# turn on unconditionally
+for arch in "$host_arch" noarch "$compat"; do
+	sed -i "s/^#\($updates_re$arch\)/\1/" "$repo_source"
+done

lib/vm.mk

@@ -8,7 +8,7 @@ ifeq (vm,$(IMAGE_CLASS))
 
 vm/.bare: profile/bare
 	@$(call add,BASE_PACKAGES,interactivesystem lilo shadow-utils e2fsprogs)
-	@$(call set,KFLAVOURS,std-def)
+	@$(call set,KFLAVOURS,un-def)
 
 vm/bare: vm/.bare
 	@$(call add,BASE_PACKAGES,apt)