feat(core): add database utils

migra-core/Cargo.toml

@@ -4,6 +4,5 @@ version = "0.1.0"
 authors = ["Dmitriy Pleshevskiy <dmitriy@ideascup.me>"]
 edition = "2018"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
 [dependencies]
+postgres = "0.19.0"

migra-core/src/database.rs

@@ -0,0 +1,9 @@
+use postgres::{Client, NoTls, Error};
+
+pub fn connect(connection_string: &str) -> Result<Client, Error> {
+    Client::connect(connection_string, NoTls)
+}
+
+pub fn apply_sql(client: &mut Client, sql_content: &str) -> Result<(), Error> {
+    client.batch_execute(sql_content)
+}

migra-core/src/lib.rs

@@ -1,7 +1,3 @@
-#[cfg(test)]
-mod tests {
-    #[test]
-    fn it_works() {
-        assert_eq!(2 + 2, 4);
-    }
-}
+#![deny(clippy::all)]
+
+pub mod database;