Add Ormin ORM support for BaraDB (Nim client)

clients/nim/ormin/tools/ormin_importer.nim

@@ -0,0 +1,38 @@
+## Ormin -- ORM for Nim.
+## (c) 2017 Andreas Rumpf
+## MIT License.
+
+import strutils, os, parseopt
+
+import ../ormin/importer_core
+
+proc writeHelp() =
+  echo """
+ormin <schema.sql> --out:<file.nim>  --db:postgre|sqlite|mysql
+"""
+
+proc writeVersion() = echo "v1.0"
+
+var p = initOptParser()
+var infile = ""
+var outfile = ""
+var target: ImportTarget
+for kind, key, val in p.getopt():
+  case kind
+  of cmdArgument:
+    infile = key
+  of cmdLongOption, cmdShortOption:
+    case key
+    of "help", "h": writeHelp()
+    of "version", "v": writeVersion()
+    of "out", "o": outfile = val
+    of "db": target = parseEnum[ImportTarget](val)
+    else: discard
+  of cmdEnd: assert(false) # cannot happen
+if infile == "":
+  # no filename has been given, so we show the help:
+  writeHelp()
+else:
+  if outfile == "":
+    outfile = changeFileExt(infile, "nim")
+  writeFile(outfile, generateModelCode(readFile(infile), absolutePath(infile), target))

clients/nim/ormin/tools/setup_postgres.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Try default connection first, then fallback to -U postgres
+run_psql_file() {
+  local db="$1"; shift
+  local file="$1"; shift
+  if ! psql -v ON_ERROR_STOP=1 -d "$db" -f "$file" "$@" >/dev/null 2>&1; then
+    psql -v ON_ERROR_STOP=1 -U postgres -d "$db" -f "$file" "$@"
+  fi
+}
+
+run_psql_cmd() {
+  local db="$1"; shift
+  local cmd="$1"; shift
+  if ! psql -v ON_ERROR_STOP=1 -d "$db" -c "$cmd" "$@" >/dev/null 2>&1; then
+    psql -v ON_ERROR_STOP=1 -U postgres -d "$db" -c "$cmd" "$@"
+  fi
+}
+
+# Create role 'test' if needed
+run_psql_file postgres tools/setup_postgres_role.sql
+
+# Create database 'test' if needed (must be outside DO block)
+if ! psql -v ON_ERROR_STOP=1 -d postgres -tAc "SELECT 1 FROM pg_database WHERE datname = 'test_ormin'" | grep -q 1; then
+  run_psql_cmd postgres "CREATE DATABASE test_ormin OWNER test"
+fi
+
+# Grant privileges on public schema
+run_psql_cmd test_ormin "GRANT ALL PRIVILEGES ON SCHEMA public TO test"
+
+echo "Postgres test DB/user ensured (role 'test', db 'test_ormin')."
+

clients/nim/ormin/tools/setup_postgres.sql

@@ -0,0 +1,21 @@
+DO
+$$
+BEGIN
+   IF NOT EXISTS (SELECT FROM pg_roles WHERE rolname = 'test') THEN
+      CREATE ROLE test LOGIN PASSWORD 'test';
+   END IF;
+END
+$$;
+
+DO
+$$
+BEGIN
+   IF NOT EXISTS (SELECT FROM pg_database WHERE datname = 'test') THEN
+      CREATE DATABASE test OWNER test;
+   END IF;
+END
+$$;
+
+\connect test
+GRANT ALL PRIVILEGES ON SCHEMA public TO test;
+

clients/nim/ormin/tools/setup_postgres_role.sql

@@ -0,0 +1,9 @@
+DO
+$$
+BEGIN
+   IF NOT EXISTS (SELECT FROM pg_roles WHERE rolname = 'test') THEN
+      CREATE ROLE test LOGIN PASSWORD 'test';
+   END IF;
+END
+$$;
+