Add Ormin ORM support for BaraDB (Nim client)

clients/nim/ormin/ormin.nim

@@ -0,0 +1,49 @@
+type
+  DbBackend* {.pure.} = enum
+    postgre, sqlite, mysql, baradb
+
+import os
+from ormin/importer_core import generateModelCode, ImportTarget
+
+template importModel*(backend: DbBackend, filename: string, includeStatic: static[bool] = false) {.dirty.} =
+  ## imports a model from an SQL file.
+  bind fileExists, parentDir, `/`
+  bind generateModelCode, ImportTarget
+  const file = static:
+    let path = parentDir(instantiationInfo(-1, true)[0])
+    path / filename & ".sql"
+  const importedFile = static:
+    if not includeStatic:
+      let res =
+        if fileExists("./tools/ormin_importer"):
+          gorgeEx("./tools/ormin_importer " & file)
+        else:
+          # run ormin_importer from the PATH
+          gorgeEx("ormin_importer " & file)
+      if res.exitCode != 0:
+        raise newException(Exception, "Failed to generate model: " & res.output)
+    file
+  {.warning: "Imported SQL Model: " & importedFile.}
+
+  const dbBackend = backend
+
+  import db_connector/db_common
+  when includeStatic:
+    import ormin/db_utils
+
+  when dbBackend == DbBackend.sqlite:
+    import ormin/ormin_sqlite
+  elif dbBackend == DbBackend.postgre:
+    import ormin/ormin_postgre
+  elif dbBackend == DbBackend.mysql:
+    import ormin/ormin_mysql
+  elif dbBackend == DbBackend.baradb:
+    import ormin/ormin_baradb
+  else:
+    {.error: "unknown database backend".}
+
+  when includeStatic:
+    generateModelCode(staticRead(file), file, ImportTarget(ord(backend)), true)
+  else:
+    include filename
+  include "ormin/queries"