fix migration not working for LEGACY_WITHOUT_VERSION (#479)

* wip

* wip

UI

@@ -0,0 +1 @@
+Subproject commit bca27426e1f398c31fb6c5c23885482326514f6e

build/scripts/migration/script.d/03-migrate-casaos.sh

@@ -3,6 +3,23 @@
 set -e
 
 # functions
+__info() {
+    echo -e "🟩 ${1}"
+}
+
+__info_done() {
+    echo -e "✅ ${1}"
+}
+
+__warning() {
+    echo -e "🟨 ${1}"
+}
+
+__error() {
+    echo "🟥 ${1}"
+    exit 1
+}
+
 __is_version_gt() {
     test "$(echo "$@" | tr " " "\n" | sort -V | head -n 1)" != "$1"
 }
@@ -47,13 +64,13 @@ CURRENT_BIN_FILE_LEGACY=$(realpath -e ${CURRENT_BIN_PATH_LEGACY}/${APP_NAME} ||
 SOURCE_VERSION="$(${SOURCE_BIN_FILE} -v)"
 CURRENT_VERSION="$(${CURRENT_BIN_FILE} -v || ${CURRENT_BIN_FILE_LEGACY} -v || (stat "${CURRENT_BIN_FILE_LEGACY}" > /dev/null && echo LEGACY_WITHOUT_VERSION) || echo CURRENT_VERSION_NOT_FOUND)"
 
-echo "CURRENT_VERSION: ${CURRENT_VERSION}"
-echo "SOURCE_VERSION: ${SOURCE_VERSION}"
+__info_done "CURRENT_VERSION: ${CURRENT_VERSION}"
+__info_done "SOURCE_VERSION: ${SOURCE_VERSION}"
 
 NEED_MIGRATION=$(__is_migration_needed "${CURRENT_VERSION}" "${SOURCE_VERSION}" && echo "true" || echo "false")
 
 if [ "${NEED_MIGRATION}" = "false" ]; then
-    echo "✅ Migration is not needed."
+    __info_done "Migration is not needed."
     exit 0
 fi
 
@@ -63,15 +80,22 @@ MIGRATION_PATH=()
 
 CURRENT_VERSION_FOUND="false"
 
+# a VERSION_PAIR looks like "v0.3.5 v0.3.6-alpha2"
+#
+# - "v0.3.5" is the current version installed on this host
+# - "v0.3.6-alpha2" is the version of the migration tool from GitHub
 while read -r VERSION_PAIR; do
     if [ -z "${VERSION_PAIR}" ]; then
         continue
     fi
 
+    # obtain "v0.3.5" from "v0.3.5 v0.3.6-alpha2"
     VER1=$(echo "${VERSION_PAIR}" | cut -d' ' -f1)
+
+    # obtain "v0.3.6-alpha2" from "v0.3.5 v0.3.6-alpha2"
     VER2=$(echo "${VERSION_PAIR}" | cut -d' ' -f2)
 
-    if [ "v${CURRENT_VERSION}" = "${VER1// /}" ]; then
+    if [ "v${CURRENT_VERSION}" = "${VER1// /}" ] || [ "${CURRENT_VERSION}" = "LEGACY_WITHOUT_VERSION" ]; then
         CURRENT_VERSION_FOUND="true"
     fi
 
@@ -81,7 +105,7 @@ while read -r VERSION_PAIR; do
 done < "${MIGRATION_LIST_FILE}"
 
 if [ ${#MIGRATION_PATH[@]} -eq 0 ]; then
-    echo "🟨 No migration path found from ${CURRENT_VERSION} to ${SOURCE_VERSION}"
+    __warning "No migration path found from ${CURRENT_VERSION} to ${SOURCE_VERSION}"
     exit 0
 fi
 
@@ -98,8 +122,7 @@ case $(uname -m) in
         ARCH="arm-7"
         ;;
     *)
-        echo "Unsupported architecture"
-        exit 1
+        __error "Unsupported architecture"
         ;;
 esac
 
@@ -112,25 +135,26 @@ pushd "${MIGRATION_SERVICE_DIR}"
         curl -sL -O "${MIGRATION_TOOL_URL}"
     done
 } || {
-    echo "🟥 Failed to download migration tools"
     popd
-    exit 1
+    __error "Failed to download migration tools"
 }
 
 {
     for VER2 in "${MIGRATION_PATH[@]}"; do
         MIGRATION_TOOL_FILE=linux-"${ARCH}"-"${APP_NAME}"-migration-tool-"${VER2}".tar.gz
-        echo "Extracting ${MIGRATION_TOOL_FILE}..."
+        __info "Extracting ${MIGRATION_TOOL_FILE}..."
         tar zxvf "${MIGRATION_TOOL_FILE}"
 
+        MIGRATION_SYSROOT_DIR=$(realpath -e "${MIGRATION_SERVICE_DIR}"/build/sysroot || __error "Failed to find sysroot directory for migration")
+        cp -rv "${MIGRATION_SYSROOT_DIR}"/* / || __error "Failed to copy sysroot directory for migration"
+
         MIGRATION_TOOL_PATH=build/sysroot/usr/bin/${APP_NAME}-migration-tool
-        echo "Running ${MIGRATION_TOOL_PATH}..."
+        __info "Running ${MIGRATION_TOOL_PATH}..."
         ${MIGRATION_TOOL_PATH}
     done
 } || {
-    echo "🟥 Failed to extract and run migration tools"
     popd
-    exit 1
+    __error "Failed to extract and run migration tools"
 }
 
 popd