Handle directory sqlite paths in migration scripts

README.md

@@ -77,6 +77,9 @@ Keep the old container running while importing. The old Redis usually listens
 on `127.0.0.1:6379` inside that container, so the helper script joins the old
 container's network namespace.
 
+`--sqlite` may point to a SQLite database file or to a directory. When it points
+to a directory, the scripts use `kosync.sqlite3` inside that directory.
+
 ```sh
 scripts/import-from-old-redis.sh \
   --old-container kosync \

scripts/export-to-old-redis.sh

@@ -54,8 +54,16 @@ case "$SQLITE" in
     *) SQLITE_ABS=$(pwd)/$SQLITE ;;
 esac
 
+case "$SQLITE_ABS" in
+    */) SQLITE_ABS=${SQLITE_ABS%/}/kosync.sqlite3 ;;
+esac
+if [ -d "$SQLITE_ABS" ]; then
+    SQLITE_ABS=$SQLITE_ABS/kosync.sqlite3
+fi
+
 SQLITE_DIR=$(dirname "$SQLITE_ABS")
 SQLITE_BASE=$(basename "$SQLITE_ABS")
+mkdir -p "$SQLITE_DIR"
 
 if [ "$PULL" -eq 1 ]; then
     docker pull "$IMAGE"

scripts/import-from-old-redis.sh

@@ -49,6 +49,13 @@ case "$SQLITE" in
     *) SQLITE_ABS=$(pwd)/$SQLITE ;;
 esac
 
+case "$SQLITE_ABS" in
+    */) SQLITE_ABS=${SQLITE_ABS%/}/kosync.sqlite3 ;;
+esac
+if [ -d "$SQLITE_ABS" ]; then
+    SQLITE_ABS=$SQLITE_ABS/kosync.sqlite3
+fi
+
 SQLITE_DIR=$(dirname "$SQLITE_ABS")
 SQLITE_BASE=$(basename "$SQLITE_ABS")
 mkdir -p "$SQLITE_DIR"