build(postgres): permet de remettre a zero une base facilement

scripts/psql_reset.sql

@@ -0,0 +1,10 @@
+DO $$ DECLARE
+    r RECORD;
+BEGIN
+    -- if the schema you operate on is not "current", you will want to
+    -- replace current_schema() in query with 'schematodeletetablesfrom'
+    -- *and* update the generate 'DROP...' accordingly.
+    FOR r IN (SELECT tablename FROM pg_tables WHERE schemaname = current_schema()) LOOP
+        EXECUTE 'DROP TABLE IF EXISTS ' || quote_ident(r.tablename) || ' CASCADE';
+    END LOOP;
+END $$;

scripts/reset_bdd.sh

@@ -0,0 +1,26 @@
+#! /bin/bash
+
+PYTHON=../venv/bin/python
+MANAGE=../manage.py
+
+dump_help()
+{
+cat <<EOF
+$0 <postgres_dump>
+
+ecrase la base de donnee de l'application
+avec le dump postgresql custom indiqué
+EOF
+}
+
+[[ "x$1" = "x-h" ]] && { dump_help ; exit ; }
+[[ $# -lt 1 ]] &&  { dump_help ; exit ; }
+DUMP_FILE="$1"
+read -p "Ecraser la base de donnee avec le contenu de [${DUMP_FILE}] (o/n)" ANS
+[[ "$ANS" = "o" ]] || exit
+
+echo "Suppression de la base de donnée"
+cat psql_reset.sql | $PYTHON $MANAGE dbshell
+
+echo "Restauration de la base depuis le dump"
+pg_restore -xO "$DUMP_FILE" | $PYTHON $MANAGE dbshell