build: add BUILD variable

build.sh

@@ -3,6 +3,7 @@ set -euo pipefail
 
 readonly ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 cd "$ROOT"
+readonly BUILD="$ROOT/build-los"
 
 readonly MANIFEST_URL="https://github.com/LineageOS/android.git"
 readonly MANIFEST_BRANCH="cm-14.1"
@@ -23,7 +24,7 @@ commands:
     bootimage       build boot.img (kernel + dt.img + ramdisk, fast gate)
     bacon           full build -> lineage_rubenslte-*.zip
     clean           mka clean
-    prune           remove all of los-build
+    prune           remove all of "$BUILD"
 EOF
 }
 
@@ -36,8 +37,8 @@ append_seandroidenforce() {
 }
 
 do_build() {
-    mkdir -p los-build
-    cd los-build
+    mkdir -p "$BUILD"
+    cd "$BUILD"
 
     if [ ! -d .repo ]; then
 	rlte_print "Setting up repo"
@@ -83,7 +84,7 @@ do_build() {
 
     if [ "$CMD" != "clean" ]; then
 	rlte_print "Appending SEANDROIDENFORCE"
-        append_seandroidenforce "$ROOT/los-build/out/target/product/rubenslte/boot.img"
+        append_seandroidenforce "$BUILD/out/target/product/rubenslte/boot.img"
     fi
 
     rlte_ok "Done."
@@ -101,6 +102,6 @@ shift $((OPTIND - 1))
 
 case "${1:-}" in
     bootimage|bacon|clean) CMD="${1:-}"; do_build ;;
-    prune) rm -rf los-build ;;
+    prune) rm -rf "$BUILD" ;;
     *) usage; exit 1 ;;
 esac