legacy: more build script fixing

legacy/build.sh

@@ -5,20 +5,11 @@ cd "$(dirname $0)/.."
 
 BOOTLOADER_COMMIT=${1:-HEAD}
 FIRMWARE_COMMIT=${2:-HEAD}
-
-if [ "$BOOTLOADER_COMMIT" = "EMU" ]; then
-    export EMULATOR=1
-fi
-
-if [ "$EMULATOR" = 1 ]; then
-    IMAGE=trezor-mcu-emulator
-else
-    IMAGE=trezor-mcu-build
-fi
+IMAGE=trezor-mcu-build
 
 USER=$(ls -lnd . | awk '{ print $3 }')
 GROUP=$(ls -lnd . | awk '{ print $4 }')
 
-docker build -t "$IMAGE" --build-arg EMULATOR=$EMULATOR legacy
+docker build -t "$IMAGE" .
 docker run -it -v $(pwd):/src:z --user="$USER:$GROUP" "$IMAGE" \
     /src/legacy/script/fullbuild "$BOOTLOADER_COMMIT" "$FIRMWARE_COMMIT"

legacy/script/fullbuild

@@ -11,6 +11,8 @@ set -eu
 
 cd "$(dirname "$0")/../.."
 
+EMULATOR=${EMULATOR:-0}
+
 readonly MCU_ROOT=legacy
 
 readonly ARTIFACT_EXTENSIONS=(bin elf)