rom.sh: new file, to replace script/roms

stub it from the trees script. the way it works now,
there is less code in the build system.

./build roms

this is no longer a thing

./build roms serprog

this is also no longer a thing. instead, do:

./update trees -b coreboot targetnamehere

./update trees -b pico-serprog

./update trees -b stm32-vserprog

the old commands still works, which causes the new
commands to run

coreboot roms now appear in elf/, not bin/, as before,
but those images now contain payloads.

NOTE: to contradict the above: ./build roms is no
longer a thing, in that it's now deprecated, but
backward compatibility is present for now. it will
be removed in a future release.

./build roms list also still works! it will do:
./update trees -b coreboot list

also:
./update trees -b grub list
this is now possible too

if a target "list" is provided, for multi-tree sources,
the targets are shown.

there is another difference: seagrub roms are now seagrub_,
instead of seabios_withgrub.

seabios-only roms are no longer provided, where grub is also
enabled; only seagrub is used. the user can easily remove
the bootorder file, if they want seabios to not try grub first.

Signed-off-by: Leah Rowe <leah@libreboot.org>

script/trees

@@ -8,10 +8,15 @@ set -u -e
 
 . "include/lib.sh"
 . "include/git.sh"
+. "include/rom.sh"
+
+. "config/data/pico-serprog/mkhelper.cfg"
+. "config/data/coreboot/mkhelper.cfg"
 
 eval `setvars "" xarch cdir defconfig cmakedir xlang mode makeargs elfdir cmd \
     project target target_dir targets xtree _f target1 bootstrapargs mkhelper \
-    autoconfargs listfile autogenargs btype tree rev tree_depend build_depend`
+    autoconfargs listfile autogenargs btype tree rev tree_depend build_depend \
+    premake release postmake`
 
 main()
 {
@@ -46,6 +51,7 @@ main()
 	datadir="config/data/$project"
 	cfgsdir="config/$project"
 	listfile="$datadir/build.list" # needed on multi, optional on single
+	[ -f "$listfile" ] || listfile="" # optional on all projects
 
 	remkdir "${tmpgit%/*}"
 
@@ -61,7 +67,6 @@ main()
 build_project()
 {
 	configure_project "$cfgsdir" || return 0
-	[ -f "$listfile" ] || listfile="" # optional on single-tree
 
 	dest_dir="$elfdir"
 	[ ! -f "$listfile" ] || elfcheck || return 0
@@ -77,10 +82,7 @@ build_project()
 
 build_targets()
 {
-	[ "$elfdir" = "elf/coreboot" ] && elfdir="$cbelfdir"
-
 	[ -d "$cfgsdir" ] || $err "directory, $cfgsdir, does not exist"
-	[ -f "$listfile" ] || $err "list file, $listfile, does not exist"
 
 	# Build for all targets if no argument is given
 	[ $# -gt 0 ] && target1="$1"
@@ -94,12 +96,16 @@ build_targets()
 handle_targets()
 {
 	for x in $targets; do
+		[ "$x" = "list" ] && x_ ls -1 "config/$project" && \
+		    listfile="" && break
 		target="$x"
 		printf "'make %s', '%s', '%s'\n" "$mode" "$project" "$target"
 		[ "$project" != "coreboot" ] || [ -n "$mode" ] || \
 		    [ "$target1" = "utils" ] || x_ ./vendor download $target
 		x_ handle_defconfig
-	done
+		[ -n "$mode" ] || [ -z "$postmake" ] || $postmake || \
+		    $err "$project/$target: !postmake: $postmake"; continue
+	done; return 0
 }
 
 handle_defconfig()
@@ -141,8 +147,8 @@ handle_src_tree()
 
 configure_project()
 {
-	eval `setvars "" xarch xlang bootstrapargs autoconfargs xtree \
-	    tree_depend makeargs btype mkhelper build_depend`
+	eval `setvars "" xarch xlang build_depend autoconfargs xtree postmake \
+	    tree_depend makeargs btype mkhelper bootstrapargs premake release`
 	[ -f "$1/target.cfg" ] || btype="auto"
 	[ -f "$datadir/mkhelper.cfg" ] && eval `setcfg "$datadir/mkhelper.cfg"`
 
@@ -159,6 +165,7 @@ configure_project()
 		    && break; _tcfg="${_tcfg%/*/target.cfg}/$tree/target.cfg"
 	done
 
+	[ "$XBMK_RELEASE" = "y" ] && [ "$release" = "n" ] && return 1
 	[ -z "$btype" ] || [ "${mode%config}" = "$mode" ] || return 1
 
 	[ -z "$mode" ] && for bd in $build_depend; do
@@ -244,6 +251,8 @@ handle_makefile()
 
 run_make_command()
 {
+	[ -z "$premake" ] || [ -n "$mode" ] || $premake || $err "!$premake"
+
 	check_cmake "$cdir" && [ -z "$mode" ] && check_autoconf "$cdir"
 	check_makefile "$cdir" || return 1
 
@@ -280,23 +289,6 @@ check_makefile()
 	    [ -f "$1/GNUmakefile" ] || return 1; return 0
 }
 
-mkpayload_grub()
-{
-	eval `setvars "" grub_modules grub_install_modules`
-	eval `setcfg "$grubdata/module/$tree"`
-
-	x_ rm -f "$cdir/grub.elf"
-
-	"${cdir}/grub-mkstandalone" --grub-mkimage="${cdir}/grub-mkimage" \
-	    -O i386-coreboot -o "${cdir}/grub.elf" -d "${cdir}/grub-core/" \
-	    --fonts= --themes= --locales=  --modules="$grub_modules" \
-	    --install-modules="$grub_install_modules" \
-	    "/boot/grub/grub_default.cfg=${cdir}/.config" \
-	    "/boot/grub/grub.cfg=$grubdata/memdisk.cfg" \
-	    "/background.png=$grubdata/background/background1280x800.png" || \
-	    $err "$tree: cannot build grub.elf"; return 0
-}
-
 copy_elf()
 {
 	[ -f "$listfile" ] && x_ mkdir -p "$dest_dir" && while read -r f; do