Allow specifying custom database name to init

tag.sh

@@ -34,9 +34,10 @@ log() {
 }
 
 init() {
-    [ -f "$DB_FILE" ] && fail "Database file \"$DB_FILE\" already exists. Aborting."
-    cat "$DB_SCHEMA" | sqlite3 "$DB_FILE"
-    log "Empty database file \"$DB_FILE\" created."
+    # DB_NAME
+    [ -f "$1" ] && fail "Database file \"$1\" already exists. Aborting."
+    cat "$DB_SCHEMA" | sqlite3 "$1"
+    log "Empty database file \"$1\" created."
 }
 
 enumerate_positional_parameters() {
@@ -126,7 +127,7 @@ add_path_auto() {
 
 main() {
     if [[ "$1" = "init" ]]; then
-        init
+        init "${2:-$DB_FILE}"
         exit 0
     fi