fix(build): scope migration helpers to their features (#7234)

* test(odm): keep listing header import test scoped

* fix(build): gate GCS-only migration HTTP helpers

rustfs/src/app/bucket_list_through.rs

@@ -38,7 +38,6 @@ use crate::on_demand_migration::{
     SourceListRequest, SourceObject, SourcePage, decode_continuation_token, source_list_plan,
 };
 use futures::StreamExt;
-use http::HeaderMap;
 use rustfs_utils::http::{SUFFIX_SOURCE_PROXY_REQUEST, get_header};
 use std::sync::Arc;
 use std::time::Instant;
@@ -476,6 +475,7 @@ mod tests {
         FilterConfig, MAX_LIST_NO_PROGRESS_PAGES, OnDemandMigrationConfig, PathStyle, PolicyConfig, Provider, SourceConfig,
         SourceCredentials, TlsConfig,
     };
+    use http::HeaderMap;
     use std::time::Duration;
     use tokio::io::{AsyncReadExt, AsyncWriteExt};
 

rustfs/src/on_demand_migration/native_http.rs

@@ -133,6 +133,7 @@ impl NativeHttp {
         self.send_classified(request, error_code_header, false).await
     }
 
+    #[cfg(feature = "gcs")]
     pub(super) async fn send_object(
         &self,
         request: reqwest::Request,
@@ -210,6 +211,7 @@ pub(super) async fn read_text(response: reqwest::Response, max_bytes: usize) ->
 /// Base64 digest (`Content-MD5`, `md5Hash`, `x-goog-hash`) as lowercase hex.
 /// `None` when the value is not a 16-byte digest, so a CRC32C never passes as
 /// an MD5.
+#[cfg(any(test, feature = "gcs"))]
 pub(super) fn base64_md5_to_hex(value: &str) -> Option<String> {
     let raw = base64_simd::STANDARD.decode_to_vec(value.trim().as_bytes()).ok()?;
     (raw.len() == 16).then(|| faster_hex::hex_string(&raw))