store buildDirs

doc/indexdbSchema.txt

@@ -45,3 +45,11 @@ CREATE TABLE IF NOT EXISTS packages (
     UNIQUE(query_name, version),
     UNIQUE(query_name, serial)
 );
+
+
+
+CREATE TABLE IF NOT EXISTS build_dependencies (
+    id TEXT PRIMARY KEY,
+    dir TEXT NOT NULL DEFAULT "/dev/null"
+    uses INTEGER NOT NULL DEFAULT 0
+);