add check for manual migration sync that will fail on cargo build in CI

Cargo.lock

@@ -5717,6 +5717,7 @@ dependencies = [
  "chrono",
  "clap",
  "cosmrs",
+ "glob",
  "nym-bin-common",
  "nym-config",
  "nym-network-defaults",

Cargo.toml

@@ -266,6 +266,7 @@ futures = "0.3.31"
 futures-util = "0.3"
 generic-array = "0.14.7"
 getrandom = "0.2.10"
+glob = "0.3"
 handlebars = "3.5.5"
 hex = "0.4.3"
 hickory-resolver = "0.25"

nym-data-observatory/Cargo.toml

@@ -46,5 +46,6 @@ utoipauto = { workspace = true }
 
 [build-dependencies]
 anyhow = { workspace = true }
+glob = { workspace = true }
 tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }
 sqlx = { workspace = true, features = ["runtime-tokio-rustls", "postgres"] }

nym-data-observatory/build.rs

@@ -1,8 +1,59 @@
 // 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() {
+fn main() -> anyhow::Result<()> {
+    // check if migrations in "../common/nyxd-scraper-psql/sql_migrations/* are in "nym-data-observatory/migrations"
+    println!("Checking 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/")
+        .canonicalize()?;
+    let output_path = Path::new(&manifest_dir_string)
+        .join("migrations")
+        .canonicalize()?;
+    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.to_str().unwrap()))
+        .unwrap()
+        .flatten()
+    {
+        println!("- checking if {file:?} exists in nym-data-observatory/migrations directory...");
+        let filename = file
+            .as_path()
+            .file_name()
+            .expect("migration filename is found");
+        let filename = output_path.join(filename);
+        println!(
+            "- {} {file:?} => {filename:?} (exists = {})",
+            if filename.exists() { "✅" } else { "❌" },
+            filename.exists()
+        );
+
+        if !filename.exists() {
+            anyhow::bail!(
+                "migration {file:?} does not exist in nym-data-observatory/migrations directory, please check and copy it"
+            );
+        }
+    }
+
+    // sqlx
     if let Ok(database_url) = std::env::var("DATABASE_URL") {
         println!("cargo:rustc-env=DATABASE_URL={database_url}");
     }
+
+    println!("✅ done");
+
+    Ok(())
 }