Merge #987

987: Ensure the build script is run when migrations are added r=carols10cents

When the timestamp on the migrations/ directory changes the build script will be run so that any pending migrations are run.

I've tested this on Linux, but management of timestamps on directories may be platform specific.

Author: bors-voyager[bot]

build.rs

@@ -10,6 +10,7 @@ use std::env;
 fn main() {
     println!("cargo:rerun-if-env-changed=TEST_DATABASE_URL");
     println!("cargo:rerun-if-changed=build.rs");
+    println!("cargo:rerun-if-changed=migrations/");
     if env::var("PROFILE") == Ok("debug".into()) {
         let _ = dotenv();
         if let Ok(database_url) = env::var("TEST_DATABASE_URL") {