Change in coreboot[master]: util/abuild: Enable abuild to compile a single variant

[Furquan Shaikh (Code Review)]

Furquan Shaikh has uploaded this change for review. ( https://review.coreboot.org/27215

Change subject: util/abuild: Enable abuild to compile a single variant
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util/abuild: Enable abuild to compile a single variant

There are many boards in coreboot which support multiple
variants. When abuild is used to compile a single target, it builds
all its variants. If a target has 5 variants, then abuild takes nearly
10x the time to compile all variants of the target. This change adds
an option -b/--board-variant to enable abuild to compile only a single
variant of the target.

TEST=Verified:
1. abuild builds all variants of the target if -b option is not
provided.
2. abuild builds a single variant if -b option is provided.
3. abuild prints appropriate error message if invalid variant name is
provided.

Change-Id: I3781568c6409c5ec2610a8386a21d86037428e7f
Signed-off-by: Furquan Shaikh 
---
M util/abuild/abuild
1 file changed, 13 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/15/27215/1

diff --git a/util/abuild/abuild b/util/abuild/abuild
index cebb7b7..ae4f100 100755
--- a/util/abuild/abuild
+++ b/util/abuild/abuild
@@ -168,8 +168,11 @@
 {
    local targets

+	local VARIANT_UC=$(echo "${variant}" | tr '[:lower:]' '[:upper:]')
+
    targets=$(get_mainboards "$1")
    if [ -n "$targets" ]; then
+		targets=$(grep "${VARIANT_UC}$" <<< ${targets})
    	echo "$targets"
    	return
    fi
@@ -537,6 +540,8 @@
 Options:\n"
     [-a|--all]                    Build previously succeeded ports as well
     [-A|--any-toolchain]          Use any toolchain
+    [-b|--board-variant <name>]   Build specific board variant under the
+                                  given target.
     [-B|--blobs]                  Allow using binary files
     [--checksum <path/basefile>]  Store checksums at path/basefile
     [-c|--cpus <numcpus>]         Build on <numcpus> at the same time
@@ -613,12 +618,12 @@
 # shellcheck disable=SC2086
 if [ "${getoptbrand:0:6}" == "getopt" ]; then
    # Detected GNU getopt that supports long options.
-	args=$(getopt -l version,verbose,quiet,help,all,target:,payloads:,cpus:,silent,junit,config,loglevel:,remove,prefix:,update,scan-build,ccache,blobs,clang,any-toolchain,clean,outdir:,chromeos,xmlfile:,kconfig:,dir:,root:,recursive,checksum:,timeless,exitcode -o Vvqhat:p:c:sJCl:rP:uyBLAzo:xX:K:d:R:Ie -- "$@") || exit 1
+	args=$(getopt -l version,verbose,quiet,help,all,target:,board-variant:,payloads:,cpus:,silent,junit,config,loglevel:,remove,prefix:,update,scan-build,ccache,blobs,clang,any-toolchain,clean,outdir:,chromeos,xmlfile:,kconfig:,dir:,root:,recursive,checksum:,timeless,exitcode -o Vvqhat:b:p:c:sJCl:rP:uyBLAzo:xX:K:d:R:Ie -- "$@") || exit 1
    eval set -- $args
    retval=$?
 else
    # Detected non-GNU getopt
-	args=$(getopt Vvqhat:p:c:sJCl:rP:uyBLAzo:xX:K:d:R:Ie "$@")
+	args=$(getopt Vvqhat:b:p:c:sJCl:rP:uyBLAzo:xX:K:d:R:Ie "$@")
    set -- $args
    retval=$?
 fi
@@ -639,6 +644,7 @@
    case "$1" in
    	-J|--junit)     shift; mode=junit; rm -f "$XMLFILE" ;;
    	-t|--target)	shift; target="$1"; shift;;
+		-b|--board-variant)	shift; variant="$1"; shift;;
    	-a|--all)	shift; buildall=true;;
    	-d|--dir)	shift; configdir="$1"; shift;;
    	-e|--exitcode)	shift; exitcode=1;;
@@ -829,7 +835,11 @@
    # build a single board
    MAINBOARD=$(normalize_target "${target}")
    if [ -z "${MAINBOARD}" ]; then
-		printf "No such target: %s\n" "$target"
+		printf "No such target: %s" "${target}"
+		if [ -n "${variant}" ]; then
+			printf ", variant: %s" "${variant}"
+		fi
+		printf "\n"
    	exit 1
    fi
    build_srcdir="$(mainboard_directory "${MAINBOARD}")"