Add MySQL and alembic

mysql_creation.sql

@@ -0,0 +1,11 @@
+CREATE DATABASE odyfo CHARACTER SET utf8mb4;
+
+CREATE DATABASE test_odyfo CHARACTER SET utf8mb4;
+
+USE odyfo;
+
+source databases/production_db.sql;
+
+USE test;
+
+source databases/test_db.sql;

psql_creation.sql

@@ -1,5 +1,3 @@
-CREATE ROLE odyfo WITH LOGIN PASSWORD 'rajjout';
+CREATE DATABASE odyfo;
 
-CREATE DATABASE odyfo WITH OWNER odyfo;
+CREATE DATABASE test_odyfo;
-
-CREATE DATABASE test_odyfo WITH OWNER odyfo;

shell.nix

@@ -3,34 +3,59 @@
 with pkgs;
 
 let
-  sql_file = "psql_creation.sql";
+  psql_file = "psql_creation.sql";
-  data_dir = "$(pwd)/.pgdata";
+  psql_dir = "$(pwd)/.pgdata";
-  origin = "odyfo.db";
+  mysql_file = "databases/mysql_creation.sql";
+  mysql_dir = "$(pwd)/.mysql";
+  socket = "${mysql_dir}/mysql.sock";
+  origin = "mysql:///odyfo";
+  destination = "postgresql:///odyfo";
 
 in mkShell {
-  buildInputs = [ postgresql pgloader ];
+  buildInputs = [
+    postgresql
+    mysql57
+    pgloader
+    python38Packages.alembic
+    python38Packages.pymysql
+  ];
 
   shellHook = ''
     trap "kill 0" EXIT
-    export PGDATA="${data_dir}"
+    export PGDATA="${psql_dir}"
-    export PGHOST="${data_dir}"
+    export PGHOST="${psql_dir}"
 
-    if [ ! -d ${data_dir} ]; then
+    # Initialize PostgreSQL
+    if [ ! -d ${psql_dir} ]; then
       initdb --auth-local=trust --no-locale --encoding=UTF8
     fi
 
     if ! pg_ctl status; then
-      pg_ctl start -o "--unix_socket_directories=${data_dir} --listen_addresses='''"
+      pg_ctl start -o "--unix_socket_directories=${psql_dir} --listen_addresses='''"
     fi
 
-    if [ ! -d ${data_dir} ]; then
+    if [ ! -d ${psql_dir} ]; then
-      psql -d postgres -f ${sql_file}
+      psql -d postgres -f ${psql_file}
+    fi
+
+    # Initialize MySQL
+    if [ ! -d ${mysql_dir} ]; then
+      mysqld --datadir="${mysql_dir}" --socket="${socket}" --initialize-insecure
+    fi
+
+    mysqld --datadir="${mysql_dir}" --socket="${socket}" --skip-networking &
+    sleep 5
+
+    if [ ! -d ${mysql_dir} ]; then
+      mysql --socket="${socket}" -u root < ${mysql_file}
     fi
 
     alias psql='psql -d postgres'
-    alias nuke='rm -rf ${data_dir}'
+    alias mysql='mysql --socket="${socket}" -u root'
+    alias nuke='rm -rf ${psql_dir} ${mysql_dir}'
 
-    pgloader ${origin} postgresql:///odyfo
+    alembic upgrade head
-    pg_dump odyfo > migrated_db.sql
+    pgloader ${origin} ${destination}
+    pg_dump odyfo > databases/migrated_db.sql
   '';
 }