copy shared migrations and add comments to ignore file to explain

nym-data-observatory/.gitignore

@@ -1,2 +1,4 @@
+# ignore files that are copied in from `../common/nyxd-scraper-psql/sql_migrations/* migrations`
+# and remember to name the migrations to avoid collisions and so they process in the correct string sort order
 0001_metadata.sql
 0002_cosmos.sql

nym-data-observatory/Cargo.toml

@@ -45,5 +45,6 @@ utoipauto = { workspace = true }
 
 [build-dependencies]
 anyhow = { workspace = true }
+glob = "0.3.3"
 tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }
-sqlx = { workspace = true, features = ["runtime-tokio-rustls", "postgres"] }
+sqlx = { workspace = true, features = ["runtime-tokio-rustls", "postgres"] }

nym-data-observatory/build.rs

@@ -1,7 +1,35 @@
 // Copyright 2025 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0
+use glob::glob;
+use std::env;
+use std::path::Path;
 
 fn main() {
+    // copy common manifest files from "../common/nyxd-scraper-psql/sql_migrations/* migrations"
+    println!("Copying common migrations...");
+    let manifest_dir_string = env::var("CARGO_MANIFEST_DIR").unwrap();
+    let common_migrations_path =
+        Path::new(&manifest_dir_string).join("../common/nyxd-scraper-psql/sql_migrations/");
+    let output_path = Path::new(&manifest_dir_string).join("migrations");
+    println!(
+        "output_path: {:?} (exists = {})",
+        output_path,
+        output_path.exists()
+    );
+    let common_migrations_path = common_migrations_path.as_path();
+    println!(
+        "common_migrations_path: {:?} (exists = {})",
+        common_migrations_path,
+        common_migrations_path.exists()
+    );
+    for file in glob(&format!("{common_migrations_path:?}/*"))
+        .unwrap()
+        .flatten()
+    {
+        println!("- {file:?}");
+        std::fs::copy(file, &output_path).unwrap();
+    }
+
     if let Ok(database_url) = std::env::var("DATABASE_URL") {
         println!("cargo:rustc-env=DATABASE_URL={database_url}");
     }